the following packet match the same rule will be directly switched by the
L3-Swtich or MLS-enabled Switch.
Inter-Vlan Routing: This is kind of routing. This first packet and the
following packet will be routed by the router, not switch. So you will find
the Inter-Vlan routing can not provide
the following packet match the same rule will be directly switched by the
L3-Swtich or MLS-enabled Switch.
Inter-Vlan Routing: This is kind of routing. This first packet and the
following packet will be routed by the router, not switch. So you will find
the Inter-Vlan routing can not provide
the following packet match the same rule will be directly switched by the
L3-Swtich or MLS-enabled Switch.
Inter-Vlan Routing: This is kind of routing. This first packet and the
following packet will be routed by the router, not switch. So you will find
the Inter-Vlan routing can not provide
Hi.. May I know how to add in route entry in solaris with this network
100.100.164.0 255.255.252.0
I use this command route add -net 100.100.164.0 100.100.164.1 it will add
the entry 100.100.164.0/24 not /22 but if I use route add -net
100.100.164.0 255.255.252.0 100.100.164.1 it prompt me
Hi
let me explain what i mean to ask
i try to configured a serial interface(sub interface) on ser1/3 i could n't
achieve what i was trying to do (i was trying to configure a backup
interface) so i removed the sub interface using
command
no int ser1/3.1
but now even after removing the interface i
NO, it cannot.
the two types of circuits use completly different methods of framing and
linecoding, for starters.
you need an intermediary TDM device to map the timeslots, and do the two
seperate formats for you.
-Peter Slow, CCNP
- Original Message -
From: Fanglo MA
To:
Sent: Monday,
If u delete any subinterface u need to reboot the router to remove it. It
will stay in that case until u reboot the router.
Regards,
Anan
-Original Message-
From: Arun [mailto:[EMAIL PROTECTED]]
Sent: Mon, May 28, 2001 10:41 AM
To: [EMAIL PROTECTED]
Subject: Re: Serial1/3.1 is deleted,
Hi
Thanks for the information ..i will try this when i find time cause the
router is on live network i cann't do tthat they will kill me ..can
u pls tell about
I have 3600 router coonfigured as x25 i have 2 slots each having 4
serial interfaces in it ...
i have to configure this
Could you pls. remove my e-mail address from the list?..
Thanx.
--
babatope ojo
[EMAIL PROTECTED] - email
(202) 777-2641 ext. 8015 - voicemail/fax
Arun wrote:
Hi
Thanks for the information ..i will try this when i find time cause
the
router is on live network i cann't do tthat
Check out http://www.IPexpert.NET
CCSI wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
pls give me some CCIE pre-lab site, I need more ccie lab information
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Hi Frank,
I think the best description for Layer 3 Switching is Route once - Switch
many.
The first time a packet in a particular flow passes through, a routing
function will be used (on a different card, or even in a different device).
But to speed up the processing of any further packets in
Hello all:
Anybody here who's a Dial expert, consider this.
I have 3 routers, A, B, and C. A and B are connected back2back with T-1
WIC's. B and C are connected through Ethernet.
I want to set up a VPDN such that B is the LAC (the NAS), and C is the home
gateway (the LNS).
The things that
hi
i am creating backup interfaces for two of my serial interfaces i
wanted to know do i need to add routes for the backup interfaces as well
...or it will be same as entered earlier for the primary interfaces .Pls
help on this ..
i am using cisco 3600 with x25 .
i want to know whether this
Hi,
I'm trying to implement NAT on my router first time.
My problem is that I want to change one of my server
IP but some remote applications are using current IP,
so i have to route the traffic to new IP.
when I try to ping my nated server then ping does not
reply back but same time traceroute
Chuck- my answer is Yes. The traffic from the Virtual Linked psuedo-ABR
passes back to Area 0, before it's sent onto the intended Area (even if it's
directly connected).
Phil
- Original Message -
From: Chuck Larrieu
To:
Sent: Sunday, May 27, 2001 8:59 PM
Subject: Wanna Be a CCIE?
agreedto area 0 then on to the intended area
-Original Message-
From: Circusnuts [mailto:[EMAIL PROTECTED]]
Sent: 28 May 2001 15:50
To: [EMAIL PROTECTED]
Subject: Re: Wanna Be a CCIE? Try This One [7:6076]
Chuck- my answer is Yes. The traffic from the Virtual Linked psuedo-ABR
I have FOUR Media Filters for sale {Black Box/Simware}. Interested buyers
contact me directly.
Thanks / RamG
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Hello Gang - I am having problem bring up TR int. Following is the output.
R2502#show interface tokenring0
TokenRing0 is initializing, line protocol is down
Hardware is TMS380, address is .30ba.4a52 (bia .30ba.4a52)
MTU 4464 bytes, BW 16000 Kbit, DLY 630 usec, rely 255/255, load
Hi all,
I passed CCIE written,Just narrowly escaped.Anyhow cleared it.Now left with
the difficult part to go,The LAB.
Can someone suggest me how to proceed for preparing the Lab.
Also I am from India and to my knowledge there is no company which offers a
practise setup on rental.If anyone has
I have 5 routers. When I issue show ver each router returns different
output regarding how the router was started. Is something wrong?
R2501 uptime is 23 minutes
System returned to ROM by power-on
System image file is flash:c2500-js-l.122-1.bin
R2502 uptime is 26 minutes
System restarted by
How about 'ring-speed 4' ?
RamG wrote in message ...
Hello Gang - I am having problem bring up TR int. Following is the output.
R2502#show interface tokenring0
TokenRing0 is initializing, line protocol is down
Hardware is TMS380, address is .30ba.4a52 (bia .30ba.4a52)
MTU 4464
Question, Is it the experts that kill networks in real life? (probably)
When does it become worth it?... How about the period (today) where
companies
are paying vast amounts of money for CCIE's to be part of their network
team.
That's when it becomes worth it. If you are good enough then prove
Guys,
The actual traffic will not be routed up to area 0... Area 0 has been
extended
down to R2, so R2 is now a backbone router. R2 has interfaces in 3 areas
now:
Area1, Area2, and Area0 by means of it's virtual link.
Any traffic originating in Area2 destined for Area1 will be routed directly
On Mon, 28 May 2001, RamG wrote:
I have 5 routers. When I issue show ver each router returns different
output regarding how the router was started. Is something wrong?
Not necessarily. It could be nothing more than a difference in ROM
versions or IOS versions. Have you looked at the rest of
Check out Inside Cisco IOS Software Architecture. by Bollaprada, Murphy,
and White.
At 10:13 AM 5/27/01, you wrote:
Hi,
Would someone can tell me how can I locate the info about the difference
between different kinds of switching, such as fast switching, flow
switching, distributed fast
As a consultant, you'd better believe it's important, and becoming moreso all
the time.
Here's an example. A couple of weeks ago, a buddy of mine (who is a CCIE)
and I
were at our office. Our sales guy got a call about a problem at a bank, and
he
called me into the office so I could get some
Hi there,
PPP link can be configured with STAC/Predictor compression (Layer 2)
cRTP compression algorithm to compress UDP packets nameley for voice (layer
3)
The problem comes about, when you want to enable both, PPP STAC and cRTP on
the same interface. Cisco's IOS accepts both commands, but
Congrats dude!
Rik
-Original Message-
From: thangavel vishnukumar mudaliar [mailto:[EMAIL PROTECTED]]
Sent: Monday, May 28, 2001 10:47 AM
To: [EMAIL PROTECTED]
Subject: Passed CCIE Written [7:6113]
Hi all,
I passed CCIE written,Just narrowly escaped.Anyhow cleared it.Now left with
My environment is currently running Cabletron equipment that has trunking
set to 802.1q. I'm putting in a new Catalyst 6500 switch and will be tieing
that into the Cabletron network. My question is, since I'm not going to
trunk between the two but just to have a cross connect to communicate
I think that what you have described is multi-layer switching.
As Howard has mentioned in past posts, L3S is simply a marketing term as is
wire-speed switching. Layer 3 Switching is simply a line card, typically in
a chassis-based system, that can make routing decisions (layer 3) using
Hi
OK I'll bite...
Yes there is a difference. It gets a little convoluted, but there is a
difference.
L3 switching: Think of a L3 switch as a multi port router that operates at
wire speed. The 2948G-L3 is an example. It is just a 50 port Ethernet
router. So L3 switching is routing traffic at
If I understand you correctly, the problem is with your NAT statements on
the router.
Make sure you are doing inside destination translation. You mave to have use
static mappings (one to one) since you want reach a box inside your network.
If you need more help post your config. Somebody will
Hi
It means that the 4003 and 4006 has a L3 module that can provide Inter-VLAN
routing. It might be limited to only provide Inter-VLAN routing on the FE
ports and have full L3 function on the GE ports.
Keep in mind that Cisco is still new to L3 and as such they have not fully
implemented it on
ISL is Cisco proprietary. 802.1Q is an open standard so that would be the
way to connect the boxes. Check out Cisco LAN Switching by Clark and
Hamilton.
-Original Message-
From: SH Wesson [mailto:[EMAIL PROTECTED]]
Sent: Monday, May 28, 2001 12:03 PM
To: [EMAIL PROTECTED]
Subject:
Cabletron doesnt support ISL so you would have to do
dot1q
--- Daniel Cotts wrote:
ISL is Cisco proprietary. 802.1Q is an open standard
so that would be the
way to connect the boxes. Check out Cisco LAN
Switching by Clark and
Hamilton.
-Original Message-
From: SH Wesson
Something about saying cisco is new to L3 bothers me :) Switching in
hardware based on IP headers maybe, but layer 3? I think they've proven
themselves there.
Pete
*** REPLY SEPARATOR ***
On 5/28/2001 at 1:14 PM John Hardman wrote:
Hi
It means that the 4003 and 4006 has
If the cabletron thing is compliant with the IEEE spec, which only specifies
one instance of STP on a trunk, you will need to configure (or just be
aware) of PVST+'s existence.
- Original Message -
From: Daniel Cotts
To:
Sent: Monday, May 28, 2001 1:30 PM
Subject: RE: trunking
Hello Gang - I am having problem bring up TR int. Following is the debug
output.
R2502#debug token ring
Token Ring Interface debugging is on
R2502#
02:46:48: %TR-3-OPENFAIL: Unit 0, open failed: Phys. Insertion, ring
beaconing
02:46:50: TR0 starting.
02:47:12: %TR-3-OPENFAIL: Unit 0, open
On Mon, 28 May 2001, RamG wrote:
E - Output of show ver for one of the router which returned to ROM by
power-on. I recently upgraded ios to 12.2 ver. Did I make any mistake
during upgrade.
1. Please share with the list. Just because I answered your initial
question doesn't mean that I
Newbie question,
On your router is the show conf giving us the contents of the
startup-config or the running-config? On your router are they both the same?
Saved?
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It is startup-config info. I tried changing ring speed to 4 later to 16
to see it could fix the problem. Changing the ring speed did not do any
good.
Thanks / RamG
Larry trav wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
Newbie question,
On your router is the show conf
Question came up on the CCIE group revolving around the meaning of the term
tunnel
I think I am seeing where the author of the below quote is going. I'm
wondering if one of the folks on this group might be willing to offer some
insight.
The question originated with someone calling an OSPF
Thanks to I others for the feedback. Learnt that different ios can show
different output in show ver. I was curious to find out is something wrong
after upgrade. I did not notice this before.
Thanks / RamG
ElephantChild wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
On Mon,
Thanks for clearing broadcast issue, so I do need
broadcast on Ethernet interface. I do get quite few
input errors and everything is seems okay on the switch
connected including duplex, speed settings so not sure
why it's getting CRCs and input errors.
For ping latency to ISDN sites issue, I gone
In my opinion, a tunnel is when you take one packet and encapsulate it with
an additional routing protocol header in order to pass it over a transit
network transparently. So, DLSW uses tunnels, GRE tunnels are obviously
tunnels, PIM register messages are tunnels, etc. That's just a brief
Here's a hint on how to remove yourself. If you can bother sending an email
every few days begging to be removed, you can take the time out and go to
www.groupstudy.com and there's a box in the lower right hand corner of the
screen. Type in your email address and click on the Unsubscribe radio
Newbie again,
Because I know nothing about T-R, I'm trying to get more from this than you
are, but doesn't beaconing means the ring is broken and it's trying to
repair/reconfigure itself.
Are you connected to a T-R net, or just trying to configure the router for
T-R?
When the Line protocol is
Deleting subinterfaces often requires a 'reload' for them to disappear.
Greetings
Reinhold
On Mon, 28 May 2001, Arun wrote:
Hi
let me explain what i mean to ask
i try to configured a serial interface(sub interface) on ser1/3 i could n't
achieve what i was trying to do (i was trying to
Hi RamG,
tell us more about to what the Tokenring Interface is connected to.
a MAU ? a TR-Switch ? Is the port you want to connect to and the cabling
fine and does it support the configured 16MHz TokenRing ?
Reinhold
On Mon, 28 May 2001, RamG wrote:
Hello Gang - I am having problem bring up
Rik,
Ek! Yep I went off on one there. Mouth into overdrive - brain in
neutral.
I love that embarrassing feeling when you've lost the plot and not realised
until it's public viewing material.
I think users of a certain age should be provided with a Delete my drivel
facility, to
I actually did this a few months back and it worked fine... although you
will get speed and duplex errors on the 6500 even if they're manually set
(at least with the Cabletron 9000 series switch). It didn't have any ill
results so no big deal.
Jeff
SH Wesson wrote in message
[EMAIL
You mention in your post that you will not be running trunks between the two
boxes. If that's the case, there is no need to go with 802.1q for the 6500.
There was a thread a week or so ago which discussed the pro's and cons of
ISL and 802.1q. I think the main one for ISL was per VLAN spanning
Hi again,
The tunnel was not working because our ISP have some filters in their
routers to deny valid IP addresses to across that link.
And our tunnel source/destination addresses were valid IPs (serial0
addresses on both routers).
Then, I've changed the src/dest to our local subnet (ethernet0
Well George, since nobody else answered, I'll help here.
Your logic is a little backwards here. by lowering your MTU, you may remove
the label of baby giants on some of your data (now maybe they'll be giants),
but that is all. Actually, by doing this, you will cause (at least in
theory)
Mr. Berkowitz, please read this post and respond.
Okay, I am going to run the risk of starting a religious war here. But I do
have to ask, is MPLS really as great as people say?
I know many people, on newsgroups and in real-life, champion MPLS as the
perfect answer to the problems of the core
I continously get this error after booting (about every 60s)
%Error opening tftp://255.255.255.255/network-confg (Timed out)
%Error opening tftp://255.255.255.255/cisconet.cfg (Timed out)
%Error opening tftp://255.255.255.255/2600router-confg (Timed out)
%Error opening
Is there anything else plugged into your MAU (a PC or anything)? TR doesn't
want to come up if its the only device in the ring, since, well, you can't
have a 1-station ring. :-)
HTH,
doctorcisco
From: RamG
Reply-To: RamG
To: [EMAIL PROTECTED]
Subject: TR Int Errr [7:6112]
Date: Mon, 28 May
This question could almost become part of a FAQ, it is asked so often.
Because it is asked so often it's hard to hint.
Lookup service config and then check your config..
from my router..
CR357136-C(config)#service ?
compress-configCompress the configuration file
config
Hi,
Can anyone give me some reasons why anyone would want to or need to use GRE
Tunnels
Thanks
Rashid Lohiya
[EMAIL PROTECTED]
020 8509 2990
07785 362626
www.pioneer-computers.com
London UK
Message Posted at:
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I used the CCNP preparation library to study towards the CCNP. Each
book in this series maps very well to the exam outline. I also used
the vast library at cisco.com to solidify any doubts. Also, the boson
tests help keep my mind sharp as to all the little details that you
may get hit with
Question came up on the CCIE group revolving around the meaning of the term
tunnel
I think I am seeing where the author of the below quote is going. I'm
wondering if one of the folks on this group might be willing to offer some
insight.
The question originated with someone calling an OSPF
Okay, I am going to run the risk of starting a religious war here. But I do
have to ask, is MPLS really as great as people say?
Great for what purpose? One of the problems is lots of
presentations, certainly the ones I've gotten unmodified from Cisco
training (not engineering), emphasize the
congrates dude!!!
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Report misconduct and Nondisclosure violations to [EMAIL
Howard C. Berkowitz wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
A great audience comment at the Atlanta NANOG, with
respect to 2547, was if this is the answer...it must have been a
pretty stupid question.
Howard,
I remember you quoted this as a comment for virtual router
NRF wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
And even the idea of higher throughput has been questioned by the mother
of
all networking, Radia Perlman:
Originally [MPLS] was designed to make it possible to build fast
routers,
but then, using techniques such as [trie
So are you saying that what Radia wrote is outdated and that MPLS is indeed
significantly faster than straight IP forwarding? Bill St. Arnaud and
Howard Berkowitz would emphatically disagree with that, so could you point
me to some evidence supporting this contention that MPLS is indeed much
Dear Group,
Security issues come over to me in a certain case of mine:
how to prevent an ISP and IDC from being attacked by DDoS?
ACL CAR in exit routers may be bringing some impack on performance?
Firewall may be having some throughput problem?
Any advice for this kind of issues,I am very
COngratulations!
I am a Chinese network engineer and passed CCIE writen with a score 93 last
month!
Wish all of us have a good luck in LAB test!
Sorry for my poor English .
Message Posted at:
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It is very easy .
Router(config)#config-register 0x2101
then reload this router, you will enter router(boot)# mode;
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Howard C. Berkowitz wrote:
In the most general sense, a tunnel is a means of taking a protocol
data unit payload of OSI layer N of protocol family P1: (N,P1)-PDU,
and transmitting it with a delivery header at layer M of protocol
family P2. What is actually transmitted is, minimally, a
So are you saying that what Radia wrote is outdated and that MPLS is indeed
significantly faster than straight IP forwarding? Bill St. Arnaud and
Howard Berkowitz would emphatically disagree with that, so could you point
me to some evidence supporting this contention that MPLS is indeed much
Hey Howard, sorry if my last few posts have been an imposition on you. When
I said please respond, what I should have said was that I really hope you
can respond, and I sincerely apologize for using improper tone of language.
Thank you for your kick-ass responses.
NRF wrote in message
1. Transport non-IP routable protocols over an IP backbone (Appletalk, IPX,
DECnet)
2. Transport encrypted IP VPNs so they pass routing protocol
3. Reduce the diameter of an IP network by eliminating routing hops over
the tunnel created
-e-
- Original Message -
From: Rashid Lohiya
Hello Group,
I bought a PIX box at an auction. I am not sure whether it was a good/bad
buy. (Paid $475 for it).
By comparing the front and rear view of the box to cisco website:
http://www.cisco.com/univercd/cc/td/doc/pcat/fw.htm
I have identified the box as a PIX Firewall 520.
The IOS on it
No.
Ms.Radia's comments were absolutely correct at the time of her writing, she
just could not say anything that had not happened while she wrote the book.
Tag switching and other proprietary similar technologies, on which MPLS was
built, were faster than IP switching when ip switching was way
Tunneling, in general, is taking data (whether user data, routing
information, etc), encapsulating it in another protocol for travel (i.e.
TCP/IP), and sending it to a destination where the other end unwraps the
encapsulation and then uses the data (whether user data, routing
information, etc).
Ya know. that really sux that Cisco would abandon ISL. Not because it's
the best but alot of people have built networks that utilize ISL because
it is better than Dot1Q, and not giving those people a graceful way to
change is really low down.
That's what happens when you trust
I think that I was at the same auction. I was willing to go $200 for it .
Absolutely start with it. It's a lot better than not having a firewall. Yes,
the syntax of some commands have changed but the logic remains. In time you
may be able to update the OS.
-Original Message-
From:
Hai, Jiang,
Congratulations!
I have passed CCNP and now I'm going to take CCIE written, what is
covered in the questions (BGP, VLAN, etc)?
Is this same like CCNP questions or is it more complex?
Thanks.
-Original Message-
From: Xinsheng Jiang [mailto:[EMAIL PROTECTED]]
Sent: Tuesday,
(Trying yet again, this time from the web interface):
I think my posts are being eaten (usually they show up right away), and
perhaps Paul has a filter on the word Test (but I doubt it as there seems
to be a number of those posts).
Anyway, I was setting the 2610 back to half-duplex, then got
I got this weird situation here:
I got router A that dials into router B through an analog modem (async
lines). On both routers A and B, I am using dialer profiles with
rotary-groups. B is also connected to the Internet, through E0 (to a cable
modem), and I have properly set up NAT, so that E0
I have this configuration in production:
branch office lan cisco 2611 Cisco 7206 running BGP Cisco 2611 branch
office lan
I have a /24 from one of my three BGP peers which is used for most
everything in my
network and there is a sloppy deploy of RFC1918 private addresses on two
branch
I am confused about which Ethernet frame type everyone uses with TCP/IP
today. I understand that there are four different types. I see from the
Cisco website that they talk about only two of these four. The two they
discuss are called Ethernet and IEEE 802.3. The one Cisco calls Ethernet has
the
GO TO SLEEP NEAL!
- Original Message -
From: Neal Rauhauser
To:
Sent: Tuesday, May 29, 2001 12:36 AM
Subject: Re: Why use GRE Tunnels [7:6155]
I have this configuration in production:
branch office lan cisco 2611 Cisco 7206 running BGP Cisco 2611 branch
office lan
I
Did some more research. In the context of the question, I went to the RFC to
see what the source says. It occurred to me that the behaviour of virtual
links must be defined in there somewhere.
Sure enough, in the router LSA there is something called the V bit, which
when set determines that the
Hi! to all, I passed my CCNA by 903 marks preparing for ccnp ,kindly help
me
by from where to get the free stuff.
mail at [EMAIL PROTECTED] more from the Web. FREE MSN Explorer
download : http://explorer.msn.com
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Virtual links are part of the backbone, and behave as if they were
unnumbered point-to-point networks between the two routers.
its a virtual link. its an unnumbered network. a network/segmrnt
nonetheless, and that description sounds like a tunnel.
it's possible im reading it out of context and
My quote was from the RFC, which I believe is the authoritative source.
All that happens is that a particular bit in the router LSA is set, and
when the two end points agree, based on the V-bit setting and the respective
RID's, the virtual link is established.
Jeff Doyle puts his pants on the
Lots of free stuff at www.cisco.com
Check out the command references and configuration guides. Great place to
start.
Chuck
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
vijay tyagi
Sent: Monday, May 28, 2001 10:55 PM
To: [EMAIL PROTECTED]
ok. well my own personal idea of a tunnel is a thing that ecapsulates
traffic to make it transparent to the underlying network, or vice-versa...
the VL does not meet my own definition, but it is an alternate path that the
traffic can take.
In reality, the traffic is ROUTED along the path that you
91 matches
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