RE: MPLS VLANs... [7:72376]

2003-07-16 Thread Mike Bernico
I'm sorry, but I don't have experience on that particular platform with
EoMPLS.  My network is almost completely GSRs and 7500s.  All our PEs
are 7500s.  We aren't letting customers use these circuits yet but every
indication is that the processor impact won't be much worse than a
normal IP customer. The greatest memory impact is just running MPLS.
Again though, I can't speak for the 6500.  

By the way, Sam Halabi has a new book coming out in September (I think)
that talks about EoMPLS theory pretty well called "Metro Internet."  It
looks like it will be pretty good.  As far as I know it's the first
Cisco Press book to talk about Martini L2 stuff.





-Original Message-
From: alaerte Vidali [mailto:[EMAIL PROTECTED] 
Sent: Wednesday, July 16, 2003 11:32 AM
To: [EMAIL PROTECTED]
Subject: RE: MPLS VLANs... [7:72376]

Hi Mike,

We are going to implement EoMPLS over two 6509 connected through 155
Mbps
PoS link.  Do you have experience concerning CPU/memory utilization?




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RE: MPLS VLANs... [7:72376]

2003-07-16 Thread Mike Bernico
Karen,

We are currently working on rolling out Martini L2 Ethernets over MPLS.
There are two Cisco ways to do Ethernet over MPLS.

The first and most commonly used method uses VC 0x0004 as defined in
draft-martini-l2circuit-trans-mpls.  It is used to transport individual
.1q vlans, which if I read your message correctly is what you want to
do.  

It's configured like this:

PE router

Int gig 1/1.100
Encap dot1Q vlan-id
Mpls l2transport dest-ip vc-id


The second and newer EoMPLS technique is support of VC 0x0005.  It has
just recently been introduced in (the quite buggy on 7500s) release of
12.0.24S.  This technique supports port to port Ethernet trunking
allowing many vlans to flow over the same physical port and letting you
trunk Ethernet switches through the network.  

It sounds like what you want is the first technique.

One word of caution though.  Every Ethernet device the communicates with
the PE router will be in said routers ARP table.  Be careful.  That
being said this is some awesome technology. I'm definitely a big fan.  

Good Luck and let me know how your MPLS implementation goes.

Mike


Mike Bernico
Sr. Network Engineer
Illinois Century Network
[EMAIL PROTECTED]





-Original Message-
From: Karen E Young [mailto:[EMAIL PROTECTED] 
Sent: Wednesday, July 16, 2003 2:14 AM
To: [EMAIL PROTECTED]
Subject: MPLS VLANs... [7:72376]

Does anyone know if there's a way out there to implement Layer 2 VPNs on
a
per-VLAN basis rather than a physical port assignment?  A-La
draft-kawakami-mpls-lsp-vlan-00.txt.

Ideas welcome,

Karen Y
A rose by any other name is Cisco specific terminology...




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RE: ??? IS-IS ??? [7:63875]

2003-02-26 Thread Mike Bernico
Check Jeff Doyle's "Routing TCP/IP vol I."  It has some good information
on IS-IS.   IS-IS is a link state routing protocol that is very popular
with large ISPs.  I'm actually a big fan.  OSPF is great too though,
don't get me wrong.  

You can also learn more about how ISPs use it at www.nanog.org.  Look
under I in their presentation topics.  

-Original Message-
From: Steven Aiello [mailto:[EMAIL PROTECTED] 
Sent: Wednesday, February 26, 2003 9:39 AM
To: [EMAIL PROTECTED]
Subject: ??? IS-IS ??? [7:63875]

Hello All,

   I'm wondering was IS-IS is.  No pun intended.  I'm assuming it's a 
routing protocol?  I've gone through Cisco, CCNA acad. and have my CCNA 
and I've even started going over Semester 5 for the CCNP, but IS-IS is 
no where to be found...  Is this a new protocol?  Or does someone know 
where I can find a good over view?

Thanks for brain food,
Steve




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RE: Cisco CWDM Experiences [7:62841]

2003-02-11 Thread Mike Bernico
Which solution are you looking at in particular?  Passive filters and
the ONS15454?  I don't think I'd call that CWDM really.  Something else
new?  

I'm mostly just curious.  I only have experience with the 15808 and the
metro 1500, but I'll help if I can.

The best bit of advice I could give is... optical is a whole different
world.  It's also very cool.  If you get heavily in to it you will have
to develop an entire new skill set.  Be warned :)


Mike


-Original Message-
From: Henry D. [mailto:[EMAIL PROTECTED]] 
Sent: Tuesday, February 11, 2003 7:21 PM
To: [EMAIL PROTECTED]
Subject: Cisco CWDM Experiences [7:62841]

Hi everyone,

I'm looking at some of the CWDM docs and this solution seems
to be a really good (read easy) way to increase the bandwidth between
sites with existing SMF. I don't have any DWDM experience, but looking
at this solution it would seem you don't need to do much in order
to achieve pretty substantial bandwidth increase.

Does anyone have any experience with this technology ?
Pretty much just looking to see how well this stuff really works
in the field. It doesn't seem like you can do much to monitor/manage
this solution which kind of makes me skeptical.

Any inputs welcomed !




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RE: Distribute-list out in ISIS - NOT working!!....Why?? [7:62648]

2003-02-07 Thread Mike Bernico
In ISIS you can only filter routes at 1.  redistribution or 2. l1/l2
connections.  You can't filter routes between two L1 routers.  You prob
shouldn't be able to type the command if it doesn't work, but such is
IOS.





-Original Message-
From: Cisco Nuts [mailto:[EMAIL PROTECTED]] 
Sent: Friday, February 07, 2003 9:47 AM
To: [EMAIL PROTECTED]
Subject: Distribute-list out in ISIS - NOT working!!Why?? [7:62641]

Hello,I am trying to use a distribute-list out serial 1 in
isis...basically blocking an Ospf route from being leaked into the Isis
domain. It lets me type in the commands but when I do a show run, the
commands are not there!!  Why??On the neighboring  isis router, I do not
even get an option to set the distribute-list in??Now I know, in Ospf
the
distribute-list out does not work  but did not know about this in
Isis?Can
anyone shed light on this? I had to use a redistribute connected with a
route-map option.Here is my config:R3-B(config)#router isis
R3-B(config-router)#distribute-list 51 out serial 1
R3-B(config-router)#endR3-B#rbr
router isis
 redistribute connected metric 3 route-map serial level-1
 redistribute rip metric 3 level-1
 net 00...0003.00
 is-type level-1 Thank you.Sincerely,CN 



Help STOP SPAM with the new MSN 8 and get 2 months FREE*




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Re: MRTG related [7:58497]

2002-12-04 Thread Mike Bernico
Well, the first thing to do would be to look at the interface counters
and make sure they concur with MRTGs view of the traffic.  

In my experience when one of our customer routers has a huge burst in
traffic it is usually due to either file sharing or a DoS attack of some
type.  ACLs, netflow, and sniffers can help you with that part.



On Tue, 2002-12-03 at 16:49, puro prasad wrote:
> I am running mrtg to monitor one of my ethernet ports on the router.
> Since a
> few days, the utilization shown has raised 4fold though no major
> changes
> have been carried out on the intranet. Anybody aware of any such
> problem.
> regs.,
> prasad.




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Re: Re: Test for MCast...Any?? [7:58269]

2002-12-02 Thread Mike Bernico
BJ,

That's a great idea actually.  I've never tested it and I don't have a
PC to try it on right now, but I think it's very likely to compile on
Cygwin.  Like I said, I can't try it, but if you do please let me know.



On Mon, 2002-12-02 at 08:50, B.J. Wilson wrote:
> Mike -
> 
> By any chance have you tested running your program on a Windows PC using
> Cygwin?  I'm not a Linux person (yet...), and I figured this might be a
> passable way for PC-based users to use MINT.
> 
> BJ
> 
> 
> ---Original Message---
> From: Mike Bernico 
> Sent: 12/02/02 09:30 AM
> To: [EMAIL PROTECTED]
> Subject: Re: Test for MCast...Any?? [7:58269]
> 
> > If you'd just like to send some test multicast traffic and see if your
> receiving it elsewhere, you can try my multicast testing program at
> http://mc-mint.sourceforge.net  It's free under the GPL.  I very much
> doubt it will run under windows though, you probably would want to use
> Linux with it.  In my lab I used  two old 300 MHz PCs to generate
> traffic with it and I've been able to fill some pretty big pipes.
> 
> Mike
> 
> 
> On Thu, 2002-11-28 at 21:18, Cisco Nuts wrote:
> > Hello,Is there a way to test/practise MCast configs. on the Internet?
> > I
> > have a cable-modem connected to a 2514 router and would like to
> > configure
> > MCast on it as well as my Lab routers behind that for PIM-SM. I have a
> > laptop connected as a client to one of the routers. How can I verify
> > that
> > MCast is working on the laptop? I mean, is there a freeware/shareware
> >  application that I can install on my laptop to test (since I cannot
> > obviously have IP/TV client on my laptop).Or is there any other way to
> > do
> > it in the Lab routers themselves.Any basic configs/examples provided
> > is
> > greatfully appreciated.Thank you for your help.Sincerely,CN
> > 
> > 
> > 
> > MSN 8 with e-mail virus protection service: 2 months FREE*




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Re: Monitoring Bandwidth on ATM PVP's [7:58263]

2002-12-02 Thread Mike Bernico
I've used MRTG on our BPXs.  What type of ATM switch do you want to
monitor?  

On Thu, 2002-11-28 at 20:38, Steve Watson wrote:
> I use MRTG for my routers. Is there a similar tool that monitors cells
> and bandwidth on an ATM Network?
>  
> Steve




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Re: Test for MCast...Any?? [7:58269]

2002-12-02 Thread Mike Bernico
If you'd just like to send some test multicast traffic and see if your
receiving it elsewhere, you can try my multicast testing program at
http://mc-mint.sourceforge.net  It's free under the GPL.  I very much
doubt it will run under windows though, you probably would want to use
Linux with it.  In my lab I used  two old 300 MHz PCs to generate
traffic with it and I've been able to fill some pretty big pipes.

Mike


On Thu, 2002-11-28 at 21:18, Cisco Nuts wrote:
> Hello,Is there a way to test/practise MCast configs. on the Internet?
> I
> have a cable-modem connected to a 2514 router and would like to
> configure
> MCast on it as well as my Lab routers behind that for PIM-SM. I have a
> laptop connected as a client to one of the routers. How can I verify
> that
> MCast is working on the laptop? I mean, is there a freeware/shareware
>  application that I can install on my laptop to test (since I cannot
> obviously have IP/TV client on my laptop).Or is there any other way to
> do
> it in the Lab routers themselves.Any basic configs/examples provided
> is
> greatfully appreciated.Thank you for your help.Sincerely,CN
> 
> 
> 
> MSN 8 with e-mail virus protection service: 2 months FREE*




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RE: CCIP MCast and Qos Exam......How tough?? [7:58161]

2002-11-27 Thread Mike Bernico
I've taken it.  I believed I passed it first try although I recall it was
difficult because of it's huge scope.  It's not nearly as hard as the 
Optical test, it's pretty much on par with the MPLS test.  I would say that
it gets fairly detailed in both QoS and Multicast.  I would know more than
just an overview.   I definitely recall it being very theory oriented.  If
you follow the outline I'm sure you'll be fine.

Good Luck!



---
Mike Bernico [EMAIL PROTECTED]
Illinois Century Network  http://www.illinois.net
(217) 557-6555


> -Original Message-
> From: Cisco Nuts [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, November 26, 2002 8:38 PM
> To: [EMAIL PROTECTED]
> Subject: CCIP MCast and Qos Exam..How tough?? [7:58161]
> 
> 
> Hello, Has anyone taken the CCIP Mcast and Qos exam? Need to know how
> tough it is going to be. Do they drill you in the intricacies 
> of PIM-SM,
> DM, Diffserv using DSCP, NBar etc. Now,  I have been told my some that
> since this exam is  like 2 exams combined into one, the exam questions
> are going to be more general and just need a real good overview of all
> the Qos and MCast topics. Is this any true? Please advise.Thank
> you.Sincerely, CN
> 
> --
> --
> 
> Protect your PC - Click here for McAfee.com VirusScan Online




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DWDM network design [7:55717]

2002-10-16 Thread Mike Bernico

Does anyone in here have any experience with large scale DWDM design?  If so
would you be willing to chat with me about using "metro DWDM" equipment vs
long haul equipment in a regional (8 runs that can be arranged into one or
two rings, each run at 100Km)  DWDM network with OC-192?

---
Mike Bernico [EMAIL PROTECTED]
Illinois Century Network  http://www.illinois.net
(217) 557-6555




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RE: OSPF for ISPs [7:54540]

2002-09-30 Thread Mike Bernico

I'm not sure I'm in complete agreement.  The network I work for has several
distribution routers that contain around 1000 T1 speed customers.  If we
were to static route each of their networks it would add about 1000 to 1500
lines of router configuration to the router.  That would definately add to
our maintenance and provisioning work and make troubleshooting harder on our
techs.   While I agree statics are probably the most stable way, I'm not
sure it's necessarily the best way to aggrigate high volumes of customers. 
We currently use EIGRP at the edge with the stub command, OSPF or IS-IS
would work just as well.  Regardless, we would never let our IGP, that
extends to the CE router, touch their IGP.  About 98% of our customers are
not BGP customers though.

YMMV
Mike

-------
Mike Bernico [EMAIL PROTECTED]
Illinois Century Network  http://www.illinois.net
(217) 557-6555


> -Original Message-
> From: Howard C. Berkowitz [mailto:[EMAIL PROTECTED]]
> Sent: Monday, September 30, 2002 11:37 AM
> To: [EMAIL PROTECTED]
> Subject: Re: OSPF for ISPs [7:54540]
> 
> 
> At 2:58 PM + 9/30/02, Don wrote:
> >Rather than run OSPF to customers, it is generally much 
> better to have
> >them use a default route to the ISP and for the ISP to run 
> static routes to
> >the customer.  OSPF to the customer is a huge land mine for 
> the ISP and
> >should be avoided in almost every case.
> > Don
> 
> I agree completely with Don that an ISP _never_ should link its IGP 
> to that of the customer.  Don't fall into the trap of assuming that 
> BGP needs a full routing table or will consume excessive resources.
> 
> I remain confused why a default route wouldn't serve, unless there 
> are multiple connections between the ISP and customer. By "send the 
> block to the customer," do you mean the block is in the customer's 
> space?  You could certainly use a second static route, which can be 
> generated automatically as part of your address assignment (see my 
> NANOG presentation, 
> http://www.nanog.org/mtg-9811/ppt/berk/index.htm).
> 
> If that's not appropriate, have the customer announce his two blocks 
> to you with BGP and receive default from your BGP.
> 
> >
> >
> >""Chris Headings""  wrote in message
> >[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> >>  Good morning all.  I was wondering if someone could lend 
> me a little help
> >>  about engineering OSPF in the backbone for an ISP 
> network.  I just had a
> >>  couple of questions and hopefully someone can give me 
> some guidance.or
> >even
> >>  some CCO links with some specific examples or better yet 
> any material
> >>  anywhere.
> >>
> >>  Say, for example, that a customer has a small block of IP's and a
> >>  distribution router knows where that block is, via a 
> connected route,
> like
> >a
> >>  /30 on a serial link.  But later down the line the 
> customer requests an
> >>  additional block of 64 IP addresses, what is the best way 
> to send this
> >block
> >>  to the customer?  Do I need to run OSPF on the customer 
> equipment?  If
> the
> >>  customer router is not running OSPF, how do the routers 
> know how to get
> to
> >>  this destination?  I assume via static routing???
> >>
> >>  Thanks as always.
> >>
> >  > Chris




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RE: CCIP Cisco press [7:52878]

2002-09-09 Thread Mike Bernico

Thats the book I used when I passed.  I also had lots of hands on with QoS,
and that always helps.

I would buy both available cisco press books regarding MPLS if you choose to
go that path.  I also did the Optical Elective.  That was very very hard,
good luck on that road.



---
Mike Bernico [EMAIL PROTECTED]
Illinois Century Network  http://www.illinois.net
(217) 557-6555


> -Original Message-
> From: YASSER ALY [mailto:[EMAIL PROTECTED]]
> Sent: Monday, September 09, 2002 9:58 AM
> To: [EMAIL PROTECTED]
> Subject: Re: CCIP Cisco press [7:52878]
> 
> 
> Hi,
> 
>  Just a small comment: The passing score for MPLS is 867
> 
> Do you think IP Quality of Service is enough for the QoS portion?
> 
> Does it contain really good stuff for the real world or 
> further reading
> is needed to master QoS?
> 
>  
> 
> Regards,
> 
> Yasser
> 
> >From: "Lars Bucher" > >hi > >to prepare i used the 
> following: > >- MPLS
> and VPN architectures >covers all you need (read all chapters 
> up to and
> inclusive the ospf >chapter). but you really need to understand the
> content. the passing score >is quite high (818) and the exam really
> tough. i'm quite experienced and >found it one of the hardest cisco
> exams! a colleague of mine, who is ccie >and mpls experienced as well,
> needed 2 attempts... > >- IP Quality of Service >- Developing IP
> Multicast Networks >compare with the cisco exam blueprint to 
> decide which
> chapters to read. i >managed the exam with just these 2 books plus the
> boson test. take care: >it's really a lot of stuff in this exam. also
> quite tough. but passing score >'only' 720. > >both exams will be much
> harder than the bsci... > >i hope you're not too scared now. good luck
> and cheers >lars > > > >""Marwa Ismail"" schrieb im Newsbeitrag
> >[EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > Hi all.. > 
> > > > I am
> now trying to take CCIP Certificate, I already took BSCI 
> exam, and I > >
> want after that to take the multicast and QOS exam then MPLS > >
> specialization.. > > > > Can anyone please recommend for me a 
> Cisco Press
> books for these exams as >I > > am not able to take courses 
> in them,, > >
> > > Thanks a lot.. > > > > > > Kind regards.. > > Marwa > > > 
> > >Message
> Posted at: 
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RE: CCIE number [7:50203]

2002-08-01 Thread Mike Bernico

I can't really speak for CCIEs because I'm not one, but like many of us on
this list I've gotten quite a few certifications.  I believe very strongly
in industry certifications as benchmarks, however I don't list any of my
certifications on business cards, signature lines, etc anymore.  I don't
like to be categorized into one thing or another.  It also seems a bit
pretentious and maybe a bit insecure.  I think everyone should be treated
the same regardless of certification and their statements should be judged
on their own merit and not weighted by a certification.  But that's just my
$0.02.

I think displaying some certifications could actually have a negative effect
as well.  For example, I have a redhat certification.  In a room full of
microsoft people that might work to discredit me.  The same might go for
cisco certifications in a room full of whoever else makes Datacom equipment.



---
Mike Bernico [EMAIL PROTECTED]
Illinois Century Network  http://www.illinois.net
(217) 557-6555


> -Original Message-
> From: MADMAN [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, August 01, 2002 8:58 AM
> To: [EMAIL PROTECTED]
> Subject: Re: CCIE number [7:50203]
> 
> 
> FWIW I know off hand about 5 CCIE's that don't include their cert in
> their sig file.  I have not asked them why, never really thought much
> about it.
> 
>   Dave
> 
> ". ." wrote:
> > 
> > Ok, may be i should rephase my question again. I have seen 
> a lot of people
> > with their email signature as
> > John smith
> > CCIE 1024
> > 
> > or something like that. Then I know immediately that that 
> person (i know
> > that 1024 belongs to the lab!) is a CCIE.
> > 
> > However, would all CCIE include their "CCIE 1024" in their 
> signature? If
> > not, just roughly how many of them?
> > 
> > I know that it is not possible to answser this question. 
> However, I am just
> > too curious to know this.
> > 
> > If you find that this is stupid quesiton (no stupid 
> question, only stupid
> > answer???), please kindly ignore this
> > 
> > Thanks
> > 
> > _
> > Join the worlds largest e-mail service with MSN Hotmail.
> > http://www.hotmail.com
> -- 
> David Madland
> Sr. Network Engineer
> CCIE# 2016
> Qwest Communications Int. Inc.
> [EMAIL PROTECTED]
> 612-664-3367
> 
> "Emotion should reflect reason not guide it"




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RE: multiple Individual T1 termination --urgent [7:47944]

2002-07-03 Thread Mike Bernico

I would advise your client to have the telco mux the T1s into Channelized
DS3s.  If for some reason that isn't possible do it yourself with a cisco
ONS 15454 or the new 15600.  Once you have Channelized ds3s your in better
shape.  You may be able to get away with a 7500 series full of CT3 cards,
but more than likely you'll want to get a ESR 10,000 due to router packet
pet second performance issues.  Those can do 6 CT3s per slot, so around 1000
t1s on the box and work quite well I think.



---
Mike Bernico [EMAIL PROTECTED]
Illinois Century Network  http://www.illinois.net
(217) 557-6555


> -Original Message-
> From: Chuck [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, July 02, 2002 12:00 PM
> To: [EMAIL PROTECTED]
> Subject: Re: multiple Individual T1 termination --urgent [7:47944]
> 
> 
> must be nice to have so much money. these all data lines? why 
> in the world
> would they not use channelized DS3 at the center? hell of a LOT
> cheaper Your telco account manager bying a new boat 
> this summer?
> 
> 
> density will be a problem. 7206's with the PA-MC-8T1 cards - 
> that will give
> you 64xT1 per box. you do the math.
> 
> HTH
> 
> Chuck
> 
> 
> 
> 
> 
> 
> 
> ""Vajira Wijesinghe""  wrote in message
> [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > Hi Group,
> >
> > I have a client who needs 188 T1 (all 1.544Mb serial lines) 
> terminations
> > to be done on the central site.
> > Network is hub and spoke fashion.
> > Pls advise the suitable Cisco router/routers on the central 
> site, for
> > this purpose.
> >
> > Thanks.
> > - (on postoffice)
> >
> > The information contained in this email is confidential and 
> is meant to be
> > read only by the person to whom it is addressed.Please visit
> > http://www.millenniumit.com/legal/email.htm to read the entire
> > confidentiality clause.
> >
> > -




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RE: Took the MPLS exam and flunked [7:47830]

2002-07-01 Thread Mike Bernico

I passed that one a few months ago.  It was quite challenging, but if your
on your way to CCIP you've probably already taken MCAST/QoS which is another
tough test.

To prepare I used "MPLS and VPN architectures" by Ivan Pepelnjak and also
"Advanced MPLS Design and Implementation" by Vivek Alwayn.  The second book
was much more pertinent to the test and I believe is being revised for test,
but check ciscopress.com for that.

 I have had a bit of MPLS experience, but I'm not a huge fan of L3 VPNs/vrf
stuff.  I also did a few labs.

BTW, I'm currently doing beta testing with some of cisco's new AToM
features, their implementation of the draft-martini stuff.  Anyway the
Ethernet over MPLS and ATM over MPLS stuff is working great and seems like
it will be a great thing for us service providers.

Good luck on test, let me know if you have other questions.  As hard as the
MPLS test was, the optical test was WAY harder, so if your gonna do that
one...beware :)

Mike

---
Mike Bernico [EMAIL PROTECTED]
Illinois Century Network  http://www.illinois.net
(217) 557-6555


> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]
> Sent: Monday, July 01, 2002 6:06 AM
> To: [EMAIL PROTECTED]
> Subject: Took the MPLS exam and flunked [7:47830]
> 
> 
> Hi Group,
> 
> Today I took the MPLS exam and I flunked.I used the book MPLS and VPN
> architecture(First edition) by Ivan Pepelnjak.From my 
> experience this book
> is not sufficient to prepare for the exam.About the exam it is not too
> toughf, if proper material would have been there.
> The passing mark is also too high,it is 867.I scored 798..
> If any knows some good links for preparing for the exam.Pls suggest.
> 
> Kind Regards /Thangavel
> 
> 186K
> Reading,Brkshire
> Direct No   -0118 9064259
> Mobile No  -07796292416
> Post code: RG16LH
> www.186k.co.uk
> 
> --
> The greatest glory in living lies not in never falling,
>  but in rising every time we fall ."
>  -- Nelson Mandela
> 
> 
> 
> 
> 
> **
> This e-mail is from 186k Ltd and is intended only for the 
> addressee named above. As this e-mail may contain confidential
> or priveleged information, if you are not the named addressee or
> the person responsible for delivering the message to the named 
> addressee, please advise the sender by return e-mail. The
> contents should not be disclosed to any other person nor copies
> taken.
> 186k Ltd is a Lattice Group company, registered in England 
> & Wales No. 3751494 Registered Office 130 Jermyn Street 
> London SW1Y 4UR
> **




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RE: Isis in a Nbma environment?? [7:46538]

2002-06-14 Thread Mike Bernico

You need to use p2p sub interfaces.  ISIS and multipoint interfaces don't
work together.



---
Mike Bernico [EMAIL PROTECTED]
Illinois Century Network  http://www.illinois.net
(217) 557-6555


> -Original Message-
> From: Cisco Nuts [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, June 13, 2002 10:26 PM
> To: [EMAIL PROTECTED]
> Subject: Isis in a Nbma environment?? [7:46538]
> 
> 
> Hello,
> 
> Is there a special config for isis in a FR nbma 
> environmentI cannot seem 
> to find any examples on CCO..Just configuring ip router 
> isis at the 
> intf. config mode apparently does not workCCO does not 
> have much info. 
> on isis either.
> 
> Thank you for your help.
> 
> Regards
> 
> My config:
> 
> interface Serial0
> bandwidth 2
> ip address 10.1.255.6 255.255.255.252
> ip router isis
> encapsulation frame-relay
> frame-relay lmi-type ansi
> end
> 
> 
> 
> 
> 
> 
> 
> _
> Get your FREE download of MSN Explorer at 
http://explorer.msn.com/intl.asp.




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RE: CCIP vs CCNP vs CCIE - not very close at all [7:45893]

2002-06-07 Thread Mike Bernico

The CCIP isn't supposed to be a replacement for CCIE.  CCIP is a
professional level exam for service providers that don't need to know
enterprise(read boring) things like bridging and dial and instead focuses on
service provider technologies.  That being said, I've completed two CCIP
electives (MPLS and metro optical) and I'm here to tell you they are way
harder than the CCNP stuff.

At any rate, if you want a service provider replacement for CCIE R&S it is
CCIE C&S, not CCIP.

---
Mike Bernico [EMAIL PROTECTED]
Illinois Century Network  http://www.illinois.net
(217) 557-6555


> -Original Message-
> From: JohnZ [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, June 06, 2002 7:19 PM
> To: [EMAIL PROTECTED]
> Subject: Re: CCIP vs CCNP vs CCIE - not very close at all [7:45893]
> 
> 
> CCIP...Sure it smells like a new car. But if it doesnot 
> require a hands
> on lab then it is just a few months away from turning into a 
> paper cert.
> Perhaps you haven't looked at CCIE R/S closely but it does 
> have Multicast on
> it and you can be sure you will be tested on it. But anyways 
> I will stick to
> first comment without a vigrous lab it's worth will decrease 
> with time as
> cramsites catch on to the test questions.
> ""Chris Parker""  wrote in message
> [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > Neal,
> >
> > I agree with you 100% the the CCIP is more relevent than 
> the CCIE in the
> > service provider sphere.
> >
> > However I think the CCIP has yet to attain the credability 
> and recognition
> > of the CCIE. I think the reason Cisco probably introduced 
> the CCIP is to
> > address the shortcomings of the CCIE in the service provider area.
> However,
> > since the CCIE is so coveted and since some many people 
> have invested so
> > much in their CCIE's , i think Cisco probably didn't want 
> to superceed the
> > CCIE with the CCIP.
> >
> > Utimately, it will be up to the market to decide which 
> certification is
> more
> > relevent in the future. Perhaps CCIE will become associated 
> more with the
> > Enterpise arena and CCIP with the serivce provider arena.
> >
> > Chris




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IS-IS distribute list? [7:44890]

2002-05-23 Thread Mike Bernico

Is there an ISIS equivalent to the following command?

!
router ospf 10
distribute-list 15 out serial 3/0
!

I realize I can filter during redistribution in and out of ISIS with route
maps, and filter with route leaking, etc.  I need to be able to filter a
router out between two L2 ISIS routers.


thanks
Mike

---
Mike Bernico [EMAIL PROTECTED]
Illinois Century Network  http://www.illinois.net




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RE: ISP Topology Design [7:43836]

2002-05-10 Thread Mike Bernico

I've recently gone through a redesign of a large ISP.  There are excellent
"best practices" types of ideas on NANOG's website in the form of old
presentations.  If you have any specific questions I can try to answer them.

-------
Mike Bernico [EMAIL PROTECTED]
Illinois Century Network  http://www.illinois.net
(217) 557-6555


> -Original Message-
> From: Chris Headings [mailto:[EMAIL PROTECTED]]
> Sent: Friday, May 10, 2002 10:53 AM
> To: [EMAIL PROTECTED]
> Subject: ISP Topology Design [7:43836]
> 
> 
> Hello all!
> 
> Does anyone know of any books/material that would be geared 
> more toward ISP
> network design?  Looking for as much as I can find...
> 
> Thanks
> 
> 
> Chris




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RE: Serial number [7:43211]

2002-05-03 Thread Mike Bernico

on 12000's it's "show gsr chassis-info"

-------
Mike Bernico [EMAIL PROTECTED]
Illinois Century Network  http://www.illinois.net
(217) 557-6555


> -Original Message-
> From: Dion, Thierry [mailto:[EMAIL PROTECTED]]
> Sent: Friday, May 03, 2002 10:01 AM
> To: [EMAIL PROTECTED]
> Subject: RE: Serial number [7:43211]
> 
> 
> Nop
>you cannot get chassis serial number on C7000 series 
> router without this
> command.
> how can i get chassis serial on GSR 12000 series Router (show 
> version don't
> give it)
> 
> -- show c7200 --
> 
> Network IO Interrupt Throttling:
>  throttle count=0, timer count=0
>  active=0, configured=0
>  netint usec=4000, netint mask usec=200
> 
> C7200 Midplane EEPROM:
> Hardware revision 2.0   Board revision A0
> --> Serial number 18281725  Part number73-3905-03
> Test history  0x0   RMA number 00-00-00
> MAC=0001.6457.5000, MAC Size=1024
> EEPROM format version 1, Model=0x4
> EEPROM contents (hex):
>   0x20: 01 04 02 00 01 16 F4 FD 49 0F 41 03 00 01 64 57
>   0x30: 50 00 04 00 00 00 00 00 00 02 22 50 00 00 FF 00
> 
> C7204VXR CPU EEPROM:
> Hardware revision 4.2   Board revision A0
> Serial number 23322824  Part number73-3409-08
> Test history  0x7   RMA number 07-37-36
> EEPROM format version 1
> EEPROM contents (hex):
>   0x20: 01 AE 04 02 01 63 E0 C8 49 0D 51 08 07 07 25 24
>   0x30: 50 00 00 00 00 00 00 00 00 00 FF FF FF FF FF 00
> 
> But look at the show version
> 
> -- show version --
> 
> Cisco Internetwork Operating System Software
> IOS (tm) 7200 Software (C7200-IS-M), Version 12.0(7)T,  
> RELEASE SOFTWARE
> (fc2)
> Copyright (c) 1986-1999 by cisco Systems, Inc.
> Compiled Tue 07-Dec-99 16:36 by phanguye
> Image text-base: 0x60008900, data-base: 0x613D8000
> 
> ROM: System Bootstrap, Version 12.1(2824:081033)
> [dbeazley-cosmos_e_LATEST 1
> 01], DEVELOPMENT SOFTWARE
> BOOTFLASH: 7200 Software (C7200-BOOT-M), Version 12.0(4)XE, 
> EARLY DEPLOYMENT
> REL
> EASE SOFTWARE (fc1)
> 
> Router uptime is 2 hours, 6 minutes
> System returned to ROM by reload at 14:19:15 Tue Mar 5 2002
> System restarted at 14:20:36 Tue Mar 5 2002
> System image file is "slot0:c7200-is-mz.120-7.bin"
> 
> cisco 7204VXR (NPE300) processor with 40960K/24576K bytes of memory.
> R7000 CPU at 262Mhz, Implementation 39, Rev 2.1, 256KB L2, 
> 2048KB L3 Cache
> 4 slot VXR midplane, Version 2.0...
> 
> 
> the show version don't work for every components.
> 
> Kind regards
> 
> -Message d'origine-
> De : Marko Milivojevic [mailto:[EMAIL PROTECTED]]
> Envoyi : vendredi 3 mai 2002 16:08
> @ : [EMAIL PROTECTED]
> Objet : RE: Serial number [7:43211]
> Importance : Faible
> 
> 
> > Hello,
> > May i have a link on web Cisco for how to get chassis's 
> serial numbers
> > because
> > it's differents According to equipements.
> > Someone is strange like CISCO7200VXR (show c7200)!!
> 
>   You can always use show version and get the same info.
> 
> 
> Marko.




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RE: Network latency [7:40295]

2002-04-03 Thread Mike Bernico

I'd also like to get a program like that.  We had to write our own, but I'm
sure an outside company could do a better job.

Mike

---
Mike Bernico [EMAIL PROTECTED]
Illinois Century Network  http://www.illinois.net
(217) 557-6555


> -Original Message-
> From: Michalis Palis [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, April 03, 2002 12:09 AM
> To: [EMAIL PROTECTED]
> Subject: Network latency [7:40295]
> 
> 
> Dear all
> 
> I am looking for a goot tool to measure network
> latence and packet loss. Any idea?
> 
> __
> Do You Yahoo!?
> Yahoo! Tax Center - online filing with TurboTax
> http://taxes.yahoo.com/




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RE: ISDN Switch - Teleos [7:39556]

2002-03-27 Thread Mike Bernico

I really like the adtran atlas. It can do isdn and lots more.  It's pricey
though.

---
Mike Bernico [EMAIL PROTECTED]
Illinois Century Network  http://www.illinois.net
(217) 557-6555


> -Original Message-
> From: Derrick Monahan [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, March 26, 2002 12:43 PM
> To: [EMAIL PROTECTED]
> Subject: ISDN Switch - Teleos [7:39556]
> 
> 
> Does anyone know of a good ISDN simulator ? I have a 
> co-worker who bought a
> Teleos Switch, but documentation is not easy obtainable and 
> it appears a
> complex device. Since the Teleos switch is not a sim, but an 
> actual ISDN
> switch I don't know anyone who has ever used it.
> 
> If you have any information on the Teleos products or a ISDN 
> sim please
> respond to this note. I am in the process of putting a CCIE 
> lab together and
> the ISDN switch/sim appears to be the hardest component to find.
> 
> Thanks
> 
> Derrick




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RE: CAR bandwidth limitation problem [7:39533]

2002-03-26 Thread Mike Bernico

Is CEF on?  I think it has to be enabled for CAR to work.  

---
Mike Bernico [EMAIL PROTECTED]
Illinois Century Network  http://www.illinois.net
(217) 557-6555


> -Original Message-
> From: Cisco Breaker [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, March 26, 2002 10:12 AM
> To: [EMAIL PROTECTED]
> Subject: CAR bandwidth limitation problem [7:39533]
> 
> 
> Hi all,
> 
> I wanted to limit our internet usage so I applied rate-limit 
> command to our
> internet routers serial interface bu couln't make it work. 
> configuration is
> below. what I wanted to do is I want to give 96000 bits 
> bandwidth to users
> who come from the firewall with 192.168.2.5 and I want to give all the
> others who are coming with ip address 192.168.2.6 only 16000 
> bits. But it
> doesnt work, when I look with sh int ser 0 rate-limit, all I 
> see is nothing
> conformed. I applied it as input because download is 
> important for us not
> upload. Any help will be appreciated? I am tired of trying so 
> many things so
> I thought maybe someone can help.
> 
> Best regards,
> 
> Cisco Breaker,
> CCNP,CCDP
> 
> Router#sh run
> Building configuration...
> 
> Current configuration : 1959 bytes
> !
> interface Ethernet0
>  ip address 192.168.1.3 255.255.255.0
> 
> interface Serial0
>  ip address 192.168.2.2 255.255.255.252
>  rate-limit input access-group 5 96000 8000 16000 
> conform-action transmit
> exceed-action drop
>  rate-limit input access-group 110 16000 1500 2000 
> conform-action transmit
> exceed-action drop
> !
> interface Serial1
>  no ip address
> !
> no ip classless
> ip route 0.0.0.0 0.0.0.0 192.168.2.1
> no ip http server
> !
> no logging trap
> access-list 5 permit 192.168.2.5 log
> access-list 110 permit ip host 192.168.2.6 any log
> 
> Router#sh int ser 0 rat
> Serial0
>   Input
> matches: access-group 5
>   params:  96000 bps, 8000 limit, 16000 extended limit
>   conformed 0 packets, 0 bytes; action: transmit
>   exceeded 0 packets, 0 bytes; action: drop
>   last packet: 1213151652ms ago, current burst: 0 bytes
>   last cleared 00:24:18 ago, conformed 0 bps, exceeded 0 bps
> matches: access-group 110
>   params:  16000 bps, 1500 limit, 2000 extended limit
>   conformed 0 packets, 0 bytes; action: transmit
>   exceeded 0 packets, 0 bytes; action: drop
>   last packet: 1213151692ms ago, current burst: 0 bytes
>   last cleared 00:23:58 ago, conformed 0 bps, exceeded 0 bps




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RE: VLoFR and atm popularity [7:38003]

2002-03-12 Thread Mike Bernico

Heh, for only about $240,000 list you too can own a 1 port oc-192 POS card
for a 124xx series GSR that will do not only PPP and HDLC over sonet, but
also frame relay encapsulation...
 
Seriously though, we aren't ready for 10Gig yet, but when the time comes I'm
considering using 10 Gig E between our core routers instead.  I'm not sure
how serious I am about that, but the line cards will be less than half the
cost.  Anyone other SPs out there considering that?
 
Mike

-Original Message- 
From: Mike Mandulak [mailto:[EMAIL PROTECTED]] 
Sent: Tue 3/12/2002 5:14 PM 
To: [EMAIL PROTECTED] 
Cc: 
Subject: Re: VLoFR and atm popularity [7:38003]



Out of curiosity, what hardware/protocol do you use for an OC-192? 

- Original Message - 
    From: "Mike Bernico" 
To: 
Sent: Tuesday, March 12, 2002 5:28 PM 
Subject: RE: VLoFR and atm popularity [7:38003] 


> I work for a large ISP.  As far as I'm concerned there is no such thing
as
a 
> high speed ATM link. In the cisco carrier class ATM world oc-12 is as
fast
> as you go.  Unless of course you use the mgx 8850, the biggest piece of 
junk 
> ever painted blue and stamped with a bridge.  ATM is still a great way to 
do 
> statistical multiplexing, a great revenue stream for carriers and popular 
> among the "connect all the sites in my enterprise together with DS3s 
> crowd."  ATM circuit emulation is darn handy for legacy video.  It's days 
> are numbered in larger networks.  It's all but extinct in the > OC-12 
> networks, but it's going to be around for a while for smaller networks. 
    > 
> 
> Mike 
> --- 
> Mike Bernico [EMAIL PROTECTED] 
> Illinois Century Network  http://www.illinois.net 
> (217) 557-6555 
> 
> 
> > -Original Message- 
> > From: Larry Letterman [mailto:[EMAIL PROTECTED]] 
> > Sent: Tuesday, March 12, 2002 3:00 PM 
> > To: [EMAIL PROTECTED] 
> > Subject: RE: VLoFR and atm popularity [7:38003] 
> > 
> > 
> > quite possibly because the big telecom providers 
> > connect most of their pops/CO's with high speed 
> > atm links... 
> > 
> > 
> > Larry Letterman 
> > Cisco Systems 
> > [EMAIL PROTECTED] 
> > 
> > 
> > -Original Message- 
> > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of 
> > Patrick Ramsey 
> > Sent: Tuesday, March 12, 2002 12:25 PM 
> > To: [EMAIL PROTECTED] 
> > Subject: VLoFR and atm popularity [7:38003] 
> > 
> > 
> > Cisco support vlan tagging over frame circuits? 
> > 
> > I was looking at a Tierra networks router and it was listed 
> > as one of it 
> > +'s. 
> > 
> > Does Cisco even support this?  This kinda creeps up even 
> > further on the +'s 
> > of atm and how long atm is going to survive. 
> > 
> > Other than being capable of joining elans at oen fac. from 
> > another, can 
> > anyone even think of why atm still exists?  With wdm and all the newer 
> > technology coming around the corner, why is atm still so 
> > saught after for 
> > long distance links? 
> > 
> > -Patrick 
> > 
> > 
> > >>>>>>>>>>>>>  Confidentiality DisclaimerThis email and any files 
> transmitted with it may contain 
> > confidential and 
> > /or proprietary information in the possession of WellStar 
> > Health System, 
> > Inc. ("WellStar") and is intended only for the individual or 
> > entity to whom 
> > addressed.  This email may contain information that is held to be 
> > privileged, confidential and exempt from disclosure under 
> > applicable law. If 
> > the reader of this message is not the intended recipient, you 
> > are hereby 
> > notified that any unauthorized access, dissemination, distribution or 
> > copying of any information from this email is strictly 
> > prohibit

RE: VLoFR and atm popularity [7:38003]

2002-03-12 Thread Mike Bernico

I work for a large ISP.  As far as I'm concerned there is no such thing as a
high speed ATM link. In the cisco carrier class ATM world oc-12 is as fast
as you go.  Unless of course you use the mgx 8850, the biggest piece of junk
ever painted blue and stamped with a bridge.  ATM is still a great way to do
statistical multiplexing, a great revenue stream for carriers and popular
among the "connect all the sites in my enterprise together with DS3s
crowd."  ATM circuit emulation is darn handy for legacy video.  It's days
are numbered in larger networks.  It's all but extinct in the > OC-12
networks, but it's going to be around for a while for smaller networks.


Mike
---
Mike Bernico [EMAIL PROTECTED]
Illinois Century Network  http://www.illinois.net
(217) 557-6555


> -Original Message-
> From: Larry Letterman [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, March 12, 2002 3:00 PM
> To: [EMAIL PROTECTED]
> Subject: RE: VLoFR and atm popularity [7:38003]
> 
> 
> quite possibly because the big telecom providers
> connect most of their pops/CO's with high speed
> atm links...
> 
> 
> Larry Letterman
> Cisco Systems
> [EMAIL PROTECTED] 
> 
> 
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> Patrick Ramsey
> Sent: Tuesday, March 12, 2002 12:25 PM
> To: [EMAIL PROTECTED]
> Subject: VLoFR and atm popularity [7:38003]
> 
> 
> Cisco support vlan tagging over frame circuits?
> 
> I was looking at a Tierra networks router and it was listed 
> as one of it
> +'s.
> 
> Does Cisco even support this?  This kinda creeps up even 
> further on the +'s
> of atm and how long atm is going to survive.
> 
> Other than being capable of joining elans at oen fac. from 
> another, can
> anyone even think of why atm still exists?  With wdm and all the newer
> technology coming around the corner, why is atm still so 
> saught after for
> long distance links?
> 
> -Patrick
> 
> 
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CCIP metro optical [7:37674]

2002-03-08 Thread Mike Bernico

Has anyone taken The CCIP optical elective?  Any thoughts or opinions on
it?

thanks

mike



---
Mike Bernico [EMAIL PROTECTED]
Illinois Century Network  http://www.illinois.net
(217) 557-6555




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RE: CCIP exam info [7:36483]

2002-02-26 Thread Mike Bernico

I just finished this Cert.  I found all of these tests more challenging than
the CCNP tests.  MPLS was particularly hard.



---
Mike Bernico [EMAIL PROTECTED]
Illinois Century Network  http://www.illinois.net
(217) 557-6555


> -Original Message-
> From: s vermill [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, February 26, 2002 10:21 AM
> To: [EMAIL PROTECTED]
> Subject: RE: CCIP exam info [7:36483]
> 
> 
> All I will say is DO NOT underestimate IS-IS.  It isn't just 
> an "added"
> topic.  I would also warn that this exam is geared towards ISPs.  It
> shouldn't be too much of a stretch of the imagination, then, 
> that BGP is
> also well represented.  I think a lot of folks are misled 
> into believing
> that a small number of IS-IS questions are added to BSCN.  I 
> also think that
> a lot of folks mistakenly believe in the myth that OSPF and 
> IS-IS are nearly
> identical.  I personally would say that they are distant 
> cousins.  Yes, SPF
> is at the core.  That is where the similarities begin to part company.
> 
> I know this isn't much on "detail."  But that is as close to 
> NDA as I am
> willing to go.
> 
> By the way, I read my way through the various RFCs.  Cisco 
> Press has a new
> book out on the subject.  I'm sure that is a much easier read.
> 
> Regards,
> 
> Scott
> 
> Christophe Nemeth wrote:
> > 
> > Hi,
> > 
> > I would like to go for CCIP and I have a question about one of
> > the exams.
> > 
> > What is the difference between BSCN and BSCI.
> > I have the courseware for BSCN and I would like to know if that
> > is the same
> > as for BSCI.
> > thanks a lot
> > 
> > cheers
> > 
> > chris




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RE: LLQ Configuration [7:36272]

2002-02-22 Thread Mike Bernico

I've done lot's of LLQ but never with FR.  My bet however, would be than you
can do LLQ on the int, for FRTS, but not both.

Mike

---
Mike Bernico [EMAIL PROTECTED]
Illinois Century Network  http://www.illinois.net
(217) 557-6555


> -Original Message-
> From: Steve Manuel [mailto:[EMAIL PROTECTED]]
> Sent: Friday, February 22, 2002 3:06 PM
> To: [EMAIL PROTECTED]
> Subject: LLQ Configuration [7:36272]
> 
> 
> To Group:
> 
> I am working with a client who is having problems with Video 
> Conference 
> using Polycom Equipment. The problem is jitter and audio drops. 
> 
> The solution that has been suggested to us by Cisco Low 
> Latency Queueing
> (LLQ)
> over Frame Relay. 
> 
> I'm not sure the release but I was told this is a new feature 
> for Frame
> Relay.
> We were instructed to upgrade to 12.2.6a IP Plus Feature Set...
> 
> We did this..
> 
> This particular client has one DLCI on the physical 
> interface, the port
> speed of the interface
> is 768kb. This is the same for both sites that have the video 
> equipment. 
> 
> Here's the configuration I put together.
> 
> 
> access-list 101 permit tcp any any range 3230 3231
> access-list 101 permit udp any any range 3230 3235
> 
> 
> class-map match-all video
> match access-group 101
> 
> 
> Policy-map video-police
> class video
> priority 540
> class class-default
> fair-queue 64
> 
> 
> map-class frame-relay video-data
> no frame-relay adaptive-shaping
> frame-relay cir 768000
> frame-relay bc 7680
> frame-relay be 0
> service-policy out video-police
> frame-relay fragment 1280
> 
> Applied to these two commands to physical interface.
> 
> frame-relay traffic-shaping
> frame-relay class video-data
> 
> Here's the error we are getting.
> 
> I/f Serial0/0 DLCI 400 class video requested bandwidth 540 (kbps)
> Not Available
> Removing service policy from map-class
> 
> We even tried this on a router not connected to the network 
> at all. When you
> do a show 
> run after the error the service-policy statement is removed from the
> map-class configuration.
> 
> Does anyone have experience with LLQ or have any suggestions.
> 
> Stephen Manuel




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RE: WAN Switching [7:34035]

2002-02-04 Thread Mike Bernico

Paul,

Sorry it took me so long to reply to this.  Let me tell you about my
experience with Stratacom.  First of all I work at a large ISP where I am
responsible for most of the network design.  Three years ago our backbone
was DS-3.  We enthusiastically installed the BPX 8620.  The future seemed
bright for the BPX in the core of a network.  I LOVE the BPX and IGX and MGX
8220 (as much as any person can really love an MGX that is) , I think they
are great, stable, and well built boxes.  We ran happily for two years and
since then we've upgraded the backbone to OC-3 and now OC-12.  We are now
outgrowing the OC-12s. As you probably know, the BPX 8620 can only support
OC-12, and even then it's port density isn't that great. So what's a cisco
atm network to do?  We're happy with the ATM, we own millions of dollars
worth of it.  It would suck to move from autoroute to pnni, but if we have
to we will, so...simple, we try the MGX 8850.  The 8850, in my opinion, is
the biggest piece of crap cisco has ever made.  I regret buying two of them.
Whoever shipped these things to customers deserves a punch in the face for
every unit they sold.  Cisco has the resources to build a ATM switch based
on IOS, or BPX SWSW, but instead they use the MGX operating system.  Then
they ship it to me like it can be put in production, but the software was so
bad it should have had a alpha release label on it.  It was rushed to
market.  It currently goes OC-48.  When we bought it we had indications from
the sales people that it would in just 3 months go faster.  That project was
cancelled.  So here we are, stuck at OC-12 with the BPX. 

So what's our next move?  Well we will probably end up running an optical
network with a lambda of POS IP traffic and a lambda of OC-48 with a sonet
mux muxing in 8620 oc-12s until we can migrate our atm services to MPLS IP.


If there are less Stratacom jobs it's probably because there are lots of
people in a similar situation to ours.  I imagine most ISPs our size and
bigger and making a migration to a DWDM/POS type of network for lots of
reasons including the one I mentioned above.  Is WAN switching dead?  No
way.  MPLS is very similar to cell switching even in it's frame mode.  Is
ATM dead.  Maybe.  If your a CCNP Wan like me, I would say its time to start
working on your CCIP MPLS and get to get involved in optical.  Everything
moves in cycles.  Until the next cycle of frame/cell (lightwave) switched
networking comes around I would say to concentrate on other areas.  I feel
your pain, I have a lot of time invested in ATM, but technology changes, an
engineer has to change with it.

Mike


> -Original Message-
> From: Paul Jin [mailto:[EMAIL PROTECTED]]
> Sent: Saturday, February 02, 2002 5:56 AM
> To: [EMAIL PROTECTED]
> Subject: RE: WAN Switching [7:34035]
> 
> 
> Hey Mike,
> 
> What do you think about the future of the stratacoms?  My 
> friends and I have
> been discussing it back and forth.
> 
> Is the demand going to be there for this product in the 
> future or what? 
> Even on the new C/S CCIE track, you only get the written portion as an
> option for WAN stuff but in the lab, no stratacoms either.
> 
> What do you guys use the Stratacoms for at work?  Especially 
> if you guys are
> running this product as a normal consumer/business and not as a telco.
> 
> thanks,
> Paul




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RE: WAN Switching [7:34035]

2002-02-01 Thread Mike Bernico

CCNP WAN switching hereI wouldn't say expert but I'm familiar with the
BPX and MGX a bit..

---
Mike Bernico [EMAIL PROTECTED]
Illinois Century Network  http://www.illinois.net
(217) 557-6555


> -Original Message-
> From: Paul Jin [mailto:[EMAIL PROTECTED]]
> Sent: Friday, February 01, 2002 3:17 PM
> To: [EMAIL PROTECTED]
> Subject: RE: WAN Switching [7:34035]
> 
> 
> I think they all died when they cancelled support for the
> WAN cert. :-)
> 
> I don't think there are any on our list.  I heard there used to be
> some usenet newsgroup site for them but dont know what it is or
> if people even use it.  try a search for the group at deja.com
> 
> - Paul




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RE: multicast / CGMP towards the multicast server [7:33964]

2002-02-01 Thread Mike Bernico

When a multicast reciever wishes to recieve multicast traffic it must send
an IGMP join for the multicast group.  CGMP/IGMP snooping get in the way of
this and makes sure the stream only goes to needed ports.  A multicast
sender doesn't need to send an IGMP join to the router to start sending
multicasts (that can't be a requirement, because if it was what would happen
on multicast networks without routers?)  A sender simply starts sending
packets.  Because a sender doesn't send IGMP joins CGMP and IGMP snooping
cannot function.  Kinda sucks huh? 

If your intrested I'm working on an open source multicast project that
simulates multicast traffic at http://sourceforge.net/projects/mc-mint/  If
you want you can look at the souce and you'll see the sender function
doesn't use IGMP joins.

Mike



---
Mike Bernico [EMAIL PROTECTED]
Illinois Century Network  http://www.illinois.net
(217) 557-6555


> -Original Message-
> From: Fears Michael S SSgt 50 CS/SCBBN
> [mailto:[EMAIL PROTECTED]]
> Sent: Friday, February 01, 2002 7:58 AM
> To: [EMAIL PROTECTED]
> Subject: RE: multicast / CGMP towards the multicast server [7:33964]
> 
> 
> Nigel, Thanks, Yes the switch and users are all on the same 
> VLAN. PIM and
> IGMP
> are working fine across the router and into other CGMP enable 
> switches. 
> The thing I was not sure of, was: if I have a server multicasting
> on the same switch/VLAN as other users, can I prevent the multicast
> stream from flooding the broadcast domain that the server is in?
> 
> I was asked this question and my answer was "no". I thought 
> it was just poor
> design
> to have the multicast server on the same VLAN as the users 
> who are not using
> it.
> 
> Maybe I'm wrong??
> 
>  
> 
> 
> 
> -Original Message-
> From: Nigel Taylor [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, January 31, 2002 8:19 PM
> To: [EMAIL PROTECTED]
> Subject: Re: multicast / CGMP towards the multicast server [7:33964]
> 
> 
> Michael,
>  Of course this would depend on if the multicast 
> server and the
> host connected on the same switch was assigned to the same 
> vlan(broadcast
> domain).  Just some quick points to mention..
> 
> Routers by default will not forward multicast traffic.  
> However, if you
> enabled a multicast routing protocol(PIM, DVMRP) then this is 
> possible.  The
> important thing here is that IGMP is used by hosts to inform 
> routers of
> their intent to become part of a multicast stream.  This 
> depends on your
> implementation of the multicast protocol.  IGMPv2 has been improved to
> support leaves from a multicast group which is not supported 
> in IGMPv1.
> This way the host is able to notify the source of it's intent 
> to leave the
> multicast group.  This is will allow the routers to prune the 
> multicast
> traffic from the segment removing the unnecessary traffic, 
> providing no
> other host on the segment remains a member of the multicast stream
> 
> A good title as recommended by a number of folks on the list 
> is Developing
> IP Multicast Networks
> Author: Beau Williamson.  ISBN: 157870779
> 
> HTH
> 
> Nigel
> 
> 
> 
>  Original Message -
> From: "Fears Michael S SSgt 50 CS/SCBBN" 
> To: 
> Sent: Thursday, January 31, 2002 4:59 PM
> Subject: multicast / CGMP towards the multicast server [7:33964]
> 
> 
> > If a multicast server is connected to a Cisco Switch 
> running CGMP, and
> > several hosts are connected to the same switch, will a 
> router turn off the
> > switch ports for the users that are not requesting the multicast?
> >
> > So, will CGMP work back towards the multicast server?
> >
> > Fears




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RE: IGRP over EIGRP...How?? [7:33760]

2002-01-30 Thread Mike Bernico

Longest match wins over admin distance.  admin distance only breaks a tie
between two routes of equal length.

Mike

---
Mike Bernico [EMAIL PROTECTED]
Illinois Century Network  http://www.illinois.net
(217) 557-6555


> -Original Message-
> From: Cisco Nuts [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, January 30, 2002 3:02 PM
> To: [EMAIL PROTECTED]
> Subject: IGRP over EIGRP...How?? [7:33760]
> 
> 
> Hello,
> I have 3  routers  running  both  Eigrp 1 and Igrp  100.  I  
> configed. a  
> distance  of 4 for Igrp so that it  would  be the  preferred  
> protocol  but 
> the  routing  table shows both Eigrp and Igrp learned route 
> for the same 
> netw.  I am  trying to understand why?  I expected to only 
> see Igrp learned 
> routes since the lower admin  dist.  of 4 would take over  
> Eigrp's  dist.  
> of 90...but it is not apparently so.  Any ideas?  Thank you.
>   
>   Example
> on RTC:
> 6.0.0.0/8  is  variably  subnetted,  2  subnets,  2 masks
> D  6.6.6.6/32 [90/4064] via 192.168.10.241,  00:00:05, Serial0
> I  6.0.0.0/8  [4/158750] via 192.168.10.241, 00:00:05, Serial
> 
> Config.  on RTC: !
> router eigrp 1
> passive-interface  Ethernet0
> network 7.0.0.0
> network 192.168.10.0
> no auto-summary
> !
> router igrp 100
> passive-interface  Ethernet0
> network 7.0.0.0
> network 192.168.10.0
> distance 4
> !
> 
> _
> Chat with friends online, try MSN Messenger: http://messenger.msn.com




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RE: Internet Router? [7:33639]

2002-01-30 Thread Mike Bernico

Partial tables are probably fine.  If you must do full tables (probably due
to a customer power trip) and your customer will have BGP connections to two
or more ASes (ISPs) then I'd strongly recommend a box that can handle 128MB.
64 just isn't enough to crunch all those paths, I've seen quite a few 7200s
with 64mb blow up in that very environment.  

-------
Mike Bernico [EMAIL PROTECTED]
Illinois Century Network  http://www.illinois.net
(217) 557-6555


> -Original Message-
> From: Bill Carter [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, January 30, 2002 2:35 PM
> To: [EMAIL PROTECTED]
> Subject: RE: Internet Router? [7:33639]
> 
> 
> The highest I have seen was around 20% when I did a clear bgp ne *
> 
> Great boxes and the Ethernet interface is 100MB
> 
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> Hire, Ejay
> Sent: Wednesday, January 30, 2002 1:02 PM
> To: [EMAIL PROTECTED]
> Subject: RE: Internet Router? [7:33639]
> 
> 
> Have you checked the utilization on those 2650's?  I'd bet 
> it's never gotten
> above 15%.  The 2650's can handle a lot more than 1 t-1's 
> worth of traffic.
> 
> -Ejay
> 
> -Original Message-
> From: Bill Carter [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, January 30, 2002 12:24 PM
> To: [EMAIL PROTECTED]
> Subject: RE: Internet Router? [7:33639]
> 
> 
> The 3640 will work for you.  I would definitely max out the RAM.  Some
> others have commented about not needing full BGP route 
> tables.  My customers
> have been very happy with partial tables as described in the 
> following CCO
> link.  I have also had customers use 2 2650's, 1 T-1 per 
> connection box,
> HSRP on the Ethernet port and run IBGP between each other for optimal
> routing.  I then configured them with the below link.
> 
> http://www.cisco.com/warp/customer/459/41.shtml
> 
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> Scott Nawalaniec
> Sent: Tuesday, January 29, 2002 10:45 PM
> To: [EMAIL PROTECTED]
> Subject: Internet Router? [7:33639]
> 
> 
> Hello Everybody,
> 
> I just want to run this by everyone for their input from experience.
> 
> Scenario:
> I'm looking for a Cisco router that will be providing 
> Internet connectivity
> running BGP and that will be able to handle the capacity of 2 
> PTP T1's to
> the Internet. I know minimum RAM will have to be 64mbs for 
> BGP routes. I
> just want to know what people have tried that does and doesn't work.
> 
> My choice would be a 3640 for future T1 expandability and/or 
> a HSSI port.
> 
> Thank you for the input.
> 
> Scott




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RE: Bandwith shape [7:32264]

2002-01-18 Thread Mike Bernico

One thing to watch for is Bc and Be are set in bytes, not bits per sec.
Basically they are bucket sizes.

Check out this link about correct Bc and Be values

http://www.cisco.com/warp/public/105/carburstvalues.html#2

and if gts isn't giving you the desired effect give class based policing a
go.

Mike

---
Mike Bernico [EMAIL PROTECTED]
Illinois Century Network  http://www.illinois.net
(217) 557-6555


> -Original Message-
> From: Constantin Tivig [mailto:[EMAIL PROTECTED]]
> Sent: Friday, January 18, 2002 2:59 AM
> To: [EMAIL PROTECTED]
> Subject: Bandwith shape [7:32264]
> 
> 
> I have tried to shape the traffic over a hdlc connection, like 
> Traffic-shape group 100 128000 128000 128000.
> 
> Well, it just limits the traffic to 128k and that's all, no 
> burst accepted.
> I wanted to set something like CIR and MIR.
> Any thoughts ?
> I use C2620, IOS 12. Ent
> 
> Merci,
> Costin
> 
> -Original Message-
> From: Mike Bernico [mailto:[EMAIL PROTECTED]] 
> Sent: Thursday, January 17, 2002 9:16 PM
> To: [EMAIL PROTECTED]
> Subject: RE: Bandwith [7:32264]
> 
> Actually that's not exactly true.  There are two different 
> types of traffic
> shaping, GTS and FRTS.  FRTS is specific to frame, but GTS as 
> used in the
> example below works just fine with any interface.  Very 
> simular to traffic
> shaping is policing, which can be accomplished by CAR (the rate-limit
> command) or class based policing.  I would recommend class 
> based policing if
> possible because it will allow you to use CEF and possibly 
> tag for QoS in
> the future.  
> 
> So what's the difference between shaping and policing?  
> Policing is more
> strict and more likely to be used on a service provider 
> router limiting a
> customer while shaping is more likely to be used on a 
> customer router going
> to a service provider.
> 
> Mike
> 
> ---
> Mike Bernico [EMAIL PROTECTED]
> Illinois Century Network  http://www.illinois.net
> (217) 557-6555
> 
> 
> > -Original Message-
> > From: Dion, Thierry [mailto:[EMAIL PROTECTED]]
> > Sent: Thursday, January 17, 2002 10:53 AM
> > To: [EMAIL PROTECTED]
> > Subject: RE: Bandwith [7:32264]
> > 
> > 
> > traffic shapping is use with FR if U haven't FR, TR will not work.
> > 
> > T.dion
> > CCNP certified
> > 
> > -Message d'origine-
> > De : Hire, Ejay [mailto:[EMAIL PROTECTED]]
> > Envoyi : jeudi 17 janvier 2002 16:04
> > @ : [EMAIL PROTECTED]
> > Objet : RE: Bandwith [7:32264]
> > 
> > 
> > For Ios 11.3 you can restrict outbound traffic rates, using 
> > the traffic
> > shape command, but I don't know how to do incoming traffic.
> > interface serial 0/0
> >  traffic-shape rate 131072
> > 
> > In Ios 12.0, there is a handy feature that will do what you 
> > want...you can
> > rate-limit it. 
> > 
> > interface Serial 0/0
> >  rate-limit input 131072 0 0 conform-action transmit 
> > exceed-action drop
> >  rate-limit output 131072 0 0 conform-action transmit 
> > exceed-action drop
> > 
> > And, you can set burst sizes on these to allow your customer 
> > to go above the
> > maximum rate for short periods of time.  If you wanted to 
> > give them 128k,
> > but burstable to 256k, then it would be
> > interface serial 0/0
> >  rate-limit input 131072 131072 131072 conform-action 
> > transmit exceed-action
> > drop
> >  rate-limit output 131072 131072 131072 conform-action transmit
> > exceed-action drop
> > 
> > (The first 131072 is the 128k committed.  The second and 
> > third 131072 is the
> > additional 128k burstable.  the format of the command is rate-limit
> > (input/output) (cir) (normal-cbr) (max-cbr) conform-action 
> > (...) exceed
> > action (...))
> > 
> > To verify the configuration 
> > Show interface serial 0/0 rate-limit...
> > 
> > Let me know if you need more help.
> > 
> > -Ejay
> > 
> > p.s.  Expiring .net company Cisco Consultant for sale or rent 
> > (me).  Contact
> > off-list for $
> > 
> > -Original Message-
> > From: kaushalender [mailto:[EMAIL PROTECTED]]
> > Sent: Thursday, January 17, 2002 2:24 AM
> > To: [EMAIL PROTECTED]
> > Subject: Bandwith [7:32264]
> > 
> > 
> > Hi all,
> > 
> > 
> > I have 2610 router on which i want that i can restrict bandwith to 
> > 128kbs on  serial port which is directly connected to my customer's 
> > router on HDSL encapsulation . How can i do that whithout 
> > using modem in 
> > between .Plz guide me .
> > 
> > Thanx in advance
> > kaushalender




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RE: Bandwith [7:32264]

2002-01-17 Thread Mike Bernico

Actually that's not exactly true.  There are two different types of traffic
shaping, GTS and FRTS.  FRTS is specific to frame, but GTS as used in the
example below works just fine with any interface.  Very simular to traffic
shaping is policing, which can be accomplished by CAR (the rate-limit
command) or class based policing.  I would recommend class based policing if
possible because it will allow you to use CEF and possibly tag for QoS in
the future.  

So what's the difference between shaping and policing?  Policing is more
strict and more likely to be used on a service provider router limiting a
customer while shaping is more likely to be used on a customer router going
to a service provider.

Mike

---
Mike Bernico [EMAIL PROTECTED]
Illinois Century Network  http://www.illinois.net
(217) 557-6555


> -Original Message-
> From: Dion, Thierry [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, January 17, 2002 10:53 AM
> To: [EMAIL PROTECTED]
> Subject: RE: Bandwith [7:32264]
> 
> 
> traffic shapping is use with FR if U haven't FR, TR will not work.
> 
> T.dion
> CCNP certified
> 
> -Message d'origine-
> De : Hire, Ejay [mailto:[EMAIL PROTECTED]]
> Envoyi : jeudi 17 janvier 2002 16:04
> @ : [EMAIL PROTECTED]
> Objet : RE: Bandwith [7:32264]
> 
> 
> For Ios 11.3 you can restrict outbound traffic rates, using 
> the traffic
> shape command, but I don't know how to do incoming traffic.
> interface serial 0/0
>  traffic-shape rate 131072
> 
> In Ios 12.0, there is a handy feature that will do what you 
> want...you can
> rate-limit it. 
> 
> interface Serial 0/0
>  rate-limit input 131072 0 0 conform-action transmit 
> exceed-action drop
>  rate-limit output 131072 0 0 conform-action transmit 
> exceed-action drop
> 
> And, you can set burst sizes on these to allow your customer 
> to go above the
> maximum rate for short periods of time.  If you wanted to 
> give them 128k,
> but burstable to 256k, then it would be
> interface serial 0/0
>  rate-limit input 131072 131072 131072 conform-action 
> transmit exceed-action
> drop
>  rate-limit output 131072 131072 131072 conform-action transmit
> exceed-action drop
> 
> (The first 131072 is the 128k committed.  The second and 
> third 131072 is the
> additional 128k burstable.  the format of the command is rate-limit
> (input/output) (cir) (normal-cbr) (max-cbr) conform-action 
> (...) exceed
> action (...))
> 
> To verify the configuration 
> Show interface serial 0/0 rate-limit...
> 
> Let me know if you need more help.
> 
> -Ejay
> 
> p.s.  Expiring .net company Cisco Consultant for sale or rent 
> (me).  Contact
> off-list for $
> 
> -Original Message-
> From: kaushalender [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, January 17, 2002 2:24 AM
> To: [EMAIL PROTECTED]
> Subject: Bandwith [7:32264]
> 
> 
> Hi all,
> 
> 
> I have 2610 router on which i want that i can restrict bandwith to 
> 128kbs on  serial port which is directly connected to my customer's 
> router on HDSL encapsulation . How can i do that whithout 
> using modem in 
> between .Plz guide me .
> 
> Thanx in advance
> kaushalender




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Multicast Packet Generator / CCIP [7:31868]

2002-01-14 Thread Mike Bernico

Hey all,

I've been doing lots of mutlicast work recently both for my CCIP as well as
for my company.  I got tired of finding creative ways to generate multicast
traffic so I wrote my own traffic generator.  It's freeware if anyone wants
it.  I put it on source forge, it should run on any linux / un*x.

http://sourceforge.net/projects/mc-mint/

If anyone has advice on the MCAST + QoS test I take it friday.

Mike

  



---
Mike Bernico [EMAIL PROTECTED]
Illinois Century Network  http://www.illinois.net
(217) 557-6555




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RE: K values - help! [7:31631]

2002-01-11 Thread Mike Bernico

So the K values are weights for the importance of each part of igrp's
composite metric...

Example: 

metric = (K1 * BandW ) + ((k2 *bandw)/(256-load) + (k3 * delay)

This basically represents 3 vectors, Bandwidth, Load, and Delay.  k5 and k4
are used for a fourth vector, reliability, for this lets ignore them, they
are rarely used...

So on a router where the k values have not been altered:

k1 =1 k2 = 0 k3 = 1 
metric = (1 * BandW ) + ((0 *bandw)/(256-load) + (1 * delay)

because any number * 0 is 0, by default the load vector is ignored.

This means that by default igrp only pays attention to bandwidth and delay,
making the equation really

metric = 1 *BandW + 1 *Delay
or really just
metric = bandw + delay



So, if k2 =1 then igrp would look at load.  I wouldn't recommend it though,
because load changes all the time your routes would change too, it would be
very unscalable.  

If you wanted to make delay way more important than bandwidth for some
reason (high speed satellite link as backup?? )  you would change k3.  If k3
= 4 then delay would be 4 times more important in a routing decision than it
is by default.  

If you wanted to make bandwidth more important than delay you could change
the k1 value.  

the syntax is

!
eigrp x
metric 0 k1 k2 k3 k4 k5
!
note that all routers participating in eigrp x must have matching k
values...


Hope that helps..

Mike
---
Mike Bernico [EMAIL PROTECTED]
Illinois Century Network  http://www.illinois.net
(217) 557-6555


> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
> Sent: Friday, January 11, 2002 8:18 AM
> To: [EMAIL PROTECTED]
> Subject: K values - help! [7:31631]
> 
> 
> I failed maths dismally at school now im faced with this 
> metric stuff ...
> 
> IGRP calculates the metric by adding together weighted values 
> of different
> characteristics of the link to the network in question. These values
> (bandwidth, bandwidth divided by load, and delay) are 
> weighted with the
> constants K1, K2, and K3. Here's the formula:
> 
> 
> Metric = K1 * BandW   (K2 * BandW)/(256-load)   K3*Delay 
> The default constant values are K1=K3=1 and K2=K4=K5=0, so: 
> 
> 
> Metric = BandW   Delay 
> If K5 does not equal 0, an additional operation is done: 
> 
> 
> Metric = Metric * [K5/(reliability   K4)] 
> To find BandW, find the smallest of all the bandwidths from outgoing
> interfaces and divide 10,000,000 by that number. (The 
> bandwidth is scaled by
> 10,000,000 in kilobits per second.)
> 
> ... can anyone put this into very very simple terms i don't 
> understand how
> the K values work
> 
> a prize will be awarded to the reply i understand :?\ 
> 
> TIA Dave




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640-905 Multicast +QoS [7:31540]

2002-01-10 Thread Mike Bernico

Hi,

Does anyone have any tips on this test they could share?  I took the beta
but missed by a point.  

Thanks

Mike

---
Mike Bernico [EMAIL PROTECTED]
Illinois Century Network  http://www.illinois.net
(217) 557-6555




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RE: CCNA WAN-SW exam

2000-07-13 Thread Mike Bernico

I've passed the CCNA WAN-sw and I'm working on the CCDP WAN-sw right now.
The quick start CD is essential, but this test also covers the BPX/IGX/MGX
product line including the new MGX 8850.  If you aren't at least somewhat
familiar with these products and their capabilites the CCNA-sw is probably
not for you.  

Mike Bernico
LincOn Network Operations Center
Illinois State Board of Education
(217) 782-4313


-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, July 11, 2000 5:21 PM
To: [EMAIL PROTECTED]
Subject: CCNA WAN-SW exam




> --
> From: [EMAIL PROTECTED][SMTP:[EMAIL PROTECTED]]
> Sent: Tuesday, July 11, 2000 5:20:46 PM
> To:   [EMAIL PROTECTED]
> Subject:  CCNA WAN-SW exam
> Auto forwarded by a Rule
> 
Has anyone sat this exam? I have the new Cisco Quick start book and it seems

to have alot of signaling and framing info. Is this book good for the exam? 
Anyone have any reading  suggestions on this exam? Thanks in advance.

David Cooper
CCNP/CCDP

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