ing on the context... and the context is not clear from their
question...
Remaining questions and simulations were rather straightforward. If you
study all topics, this exam shouldn't be a problem.
Eric
- Original Message -
From:
To: "ericbrouwers"
Sent: Friday, Jan
I'm wondering...there is a document on Cisco's Web site with the same title
as the book you are referring to:
Cisco ISP Essentials
Essential IOS Features Every ISP Should Consider
Lessons from people who have been operating backbones since the early days
of the Net
Version 2.9, Wednesday, June 06,
Thanks. I thought I was the only one having that problem. I got the expired
problem a couple of days ago, after I rebooted my laptop. Yes, MS Windows
laptops can be stable for more than one week
- Original Message -
From: "The Long and Winding Road"
To:
Sent: Tuesday, February 04, 20
s want to filter
> LSAs within an area. Looks like the command "neighbor database-filter"
> exists to do this.
>
>
>
>
>
>
>
> ericbrouwers wrote:
> >
> > Hello,
> >
> > The "distribute-list access-list in [interface]" command is not
supported
>
Hostnames and prompts can be changed by just entering the command with no
string; hit enter after command:
Switch(enable) set system name
or
Switch(enable) set prompt
Eric
- Original Message -
From: "Eagles Fan"
To:
Sent: Thursday, February 27, 2003 3:32 PM
Subject: Cat4006 - Promp
James,
I don't know whether anyone replied yet, but according to the software
configuration guide on the Cisco documentation CD,
http://127.0.0.1:8080/cc/td/doc/product/lan/cat2950/1219ea1/scg/swipaddr.htm
,
you can use "ip default-gateway", like on the 2900:
Switch(config)#interface vlan 1
Switc
Hi there,
I always thought that only VTP v2 transparent mode switches forward VTP
advertisements. This is, for example, suggested in the following link:
http://127.0.0.1:8080/cc/td/doc/product/lan/c3550/1219ea1/3550scg/swvtp.htm#x
tocid3
VTP transparent switches do not participate in VTP. A VTP t
Hi there,
I'm looking for CatOS commands that are equivalent to the IOS based commands
below:
Clear the CDP tableclear cdp table
Display CDP counters show cdp traffic
Reset CDP counters clear cdp counters
Moreover, is there an IOS command that is similar to "show po
Hello all,
I've read in the CCNP Switching Exam Cert. Guide that a standby router that
becomes active in an HSRP group, sends a gratuitous ARP to update the ARP
cache of the end stations with the new active MAC address...
This is strange, since the same virtual MAC address is used by active and
s
Hi,
Consider this: suppose that you have configured an inband-management
interface
of an IOS-based switch
Switch(config)#interface vlan 1
Switch(config-if)#ip address 172.16.10.2 255.255.255.0
Switch(config-if)#no shutdown
Switch(config-if)#exit
Switch(config)#ip default-gateway 172.16.10.254
If
Marc,
There are two nice whitepapers about designing switched multi-layer networks
on CCO. Contain lots of networks design examples, including collapsed
backbones.
Search for:
Designing High-Performance Campus Intranets with Multilayer Switching
Author: Geoff Haviland
Gigabit Campus Network Des
end
> products don't have the limitation and some end stations don't really
> respond well to it.
>
> i haven't actually used this before for money, so there is the
> possibility of being wrong and your mileage may vary will use. but it
> should start the ball rolling t
nnection for sure. you will need to
> make sure you have console access via a modem or console cable to a PC to
> manage the device.
>
> For CatOS I am not 100% -- there is definitely no "clear interface sc0"
> command. you may be able to say set interface sc
ic
- Original Message -
From: "Priscilla Oppenheimer"
To:
Sent: Wednesday, March 19, 2003 1:37 AM
Subject: Re: Gratuitous ARP and HSRP [7:65633]
> ericbrouwers wrote:
> >
> > It is indeed related to the command "use-bia". Here's a section
> >
Marc,
There are two nice whitepapers about designing switched multi-layer networks
on CCO. Contain lots of networks design examples, including collapsed
backbones.
Search for:
Designing High-Performance Campus Intranets with Multilayer Switching
Author: Geoff Haviland
Gigabit Campus Network Des
I think you made a typo: G.703 is framed. Refer explanation below.
A G.703/G.704 link is an European PCM trunk that consists of 32 timeslots
(numbered from 0 to 31) representing channels. Beware of the numbering
because some people number differently. One channel is 64kbps, so 32
channels gives 20
If you really want to make big money, go for MPLampS:
http://www.ietf.org/internet-drafts/draft-bala-mplamps-04.txt
Very specialized, but big market,
:-)
Eric
- Original Message -
From: "nrf"
To:
Sent: Thursday, April 03, 2003 4:20 AM
Subject: Re: A career in MPLS. [7:66609]
> ""C
Interesting discussion,
In-band, out-of-band are very confusing terms when used in digital
telecoms/datacoms. People and books will tell you contradicting things. For
the right definitions you can best refer to ITU or ANSI specs.
I haven't been involved in classical telecoms for years, but this i
Thanks for the clarification, this makes it clearer.
Eric
- Original Message -
From: "Vikram JeetSingh"
To: "ericbrouwers" ;
Sent: Friday, April 04, 2003 1:28 PM
Subject: RE: CAS and CCS - out-of-band and in-band [7:66607]
> Yah Eric you mentioned almost all
Ethernet type Novell Cisco
- -----
Ethernet version 2 Ethernet_II arpa
Novell 802.3 raw Ethernet_802.3 novell-ether
IEEE 802.3Ethernet_802.2 sap
IEEE 802.
Is NetBIOS a protocol in the sense of ISO's OSI definition?? I never really
checked it. Originally it was a programming interface on IBM PCs. I did some
network programming with NetBIOS back in 1989... yes, old man...
When I started reading commercial Cisco certification books, the authors
sometim
I haven't seen any feedback from others on your thoughts. See my comments
below.
Eric
- Original Message -
From: "The Long and Winding Road"
To:
Sent: Sunday, March 16, 2003 8:13 AM
Subject: OSPF Topology Question - Parkhurst's Book [7:65532]
> Ran into something in Parkhurst's OSPF b
See feedback inline.
Eric
- Original Message -
From: "The Long and Winding Road"
To:
Sent: Thursday, March 27, 2003 7:09 AM
Subject: OSPF Tricks of the Trade [7:66308]
> After wrestling with Solie this afternoon, it suddenly occurred to me that
> there is a typical instruction in the
Hi there,
Cisco Press' CCNP Routing Exam Certification Guide advises to place an ASBR
in
the backbone area (p. 290, chapter 6):
"... If there is any redistribution between other protocols to OSPF on a
router, it will be an ASBR. Although you can place this router anywhere in
the
OSPF hierarchical
Hi,
For those that are reading Cisco Press' CCNP Routing Exam Certification
Guide:
there is a very confusing definition of type 4 summary LSAs on page 292,
chapter 6:
The AS external ASBR summary link- This LSA is sent to a router that connects
to the outside world (ASBR). It is sent from the Are
Hello,
Again for those reading Cisco Press' CCNP Routing Exam Certification Guide.
It's not clear to me how often the OSPF topology table is exchanged by
default. I thought this happened every 30 minutes, regardless of other recent
updates. The cert. guide is not consistent about this:
Page 166:
For those reading Cisco Press' CCNP Routing Exam Certification Guide: Sorry
to
bother you again.
Chapter 4, page 178, suggests the use of TCP to exchange OSPF hello packets:
"... To understand this complexity, it is useful to identify the main
characteristics of OSPF. These key attributes of OSPF
Hi,
Why is an E1 route preferred over an E2 route for the same destination?
The cost of an E1 route is the sum of the external reported cost and the
internal cost used to reach that destination.
The cost of an E2 route is always the external cost, irrespective of the
internal cost to reach that r
Thanks, I now noticed that there is also some more detail about this in the
IP Configuration Guide: LSA Group Pacing.
- Original Message -
From:
To: "ericbrouwers"
Sent: Thursday, January 23, 2003 6:09 PM
Subject: Re: OSPF 30 minutes topology table exchange [7:61617]
>
Thanks, although I'm not sure I completely understand it now... I will
reread tomorrow.
Eric
- Original Message -
From: "cebuano"
To: "'ericbrouwers'"
Sent: Thursday, January 23, 2003 1:09 AM
Subject: RE: Why is OSPF E1 route preferred over E2 r
n [7:61618]
> ericbrouwers wrote:
> >
> > For those reading Cisco Press' CCNP Routing Exam Certification
> > Guide: Sorry to
> > bother you again.
> >
> > Chapter 4, page 178, suggests the use of TCP to exchange OSPF
> > hello packets:
> >
> &
noyed by the overlap in the different books I used. Probably I would have
been better off using one or two good resources that are also useful for
later CCNP/CCIE study.
Eric
- Original Message -
From: "cebuano"
To: "'ericbrouwers'"
Sent: Thursday, Janu
:21 PM
Subject: RE: Wrong definition type 4 summary LSA for ASBRs [7:61615]
> ericbrouwers wrote:
> >
> > Hi,
> >
> > For those that are reading Cisco Press' CCNP Routing Exam
> > Certification Guide:
> > there is a very confusing definition of type 4 summ
thing right now. I'm reading the Sybex BSCI book.
Eric
- Original Message -
From: Pistone, Mike
To: 'ericbrouwers'
Sent: Thursday, January 23, 2003 10:50 PM
Subject: RE: Wrong definition type 4 summary LSA for ASBRs [7:61615]
I'm reading the CP CCNP Ro
sage -
From:
To: "ericbrouwers"
Sent: Thursday, January 23, 2003 6:05 PM
Subject: Re: ASBR in backbone area?? [7:61614]
>
> What kind of problem do you see putting the ASBR on the backbone area?
>
> Just to think about.
>
>
>
>
>
> "ericbrouwer
e mail below, where a Cisco Press
author proposes to connect an (Internet) ASBR to the OSPF backbone area.
It's good to hear that there doesn't seem to be a general design
guideline...Lots of freedom...
;-)
Eric
- Original Message -
From: "ericbrouwers"
To:
Sent: Mon
Hello,
I've a question about BGP prefix-lists. In BGP prefix commands the operators
"le" and "ge" can be used. For instance:
ip prefix-list abc permit 0.0.0.0/0 ge 8 le 24
I suppose that the "e" in "le" and "ge" means "equal to", doesn't it?
I ask this because Cisco's prefix-list documentatio
Hello,
The "distribute-list access-list in [interface]" command is not supported in
IS-IS and OSPF. Why???
I tried to find an explanation in Cisco's OSPF design guide:
Filtering information with link-state protocols such as OSPF is a tricky
business. Distribute-list out works on the ASBR to
interface), you also lose all
other traffic on the secondary DLCIs.
Eric
- Original Message -
From: "Srivathsan Ananthachari"
To: "ericbrouwers"
Cc:
Sent: Friday, June 27, 2003 1:14 PM
Subject: RE: DLCI Prioritization [7:71428]
Does that mean that if I want my prima
There are other systems that allow you to change the Ethernet encapsulation,
for example Juniper routers:
set interfaces fe-0/0/0 unit 0 encapsulation dix
set interfaces fe-0/0/0 unit 0 encapsulation 802.3-llc
set interfaces fe-0/0/0 unit 0 encapsulation 802.3-snap
I think I've also seen
Search on the Internet. For example try http://www.realrates.com/ .
Eric
- Original Message -
From: "Priscilla Oppenheimer"
To:
Sent: Wednesday, July 02, 2003 7:13 PM
Subject: RE: CCSE VALUE IN US : OT QUESTION !!! [7:71768]
> =?iso-8859-1?q?Mr=20piyush=20shah?= wrote:
> >
> > Dea
> Router(config)#interface serial 0/0
> % Invalid input detected at '^' marker.
Maybe you had to use "interface serial 0" instead of "interface serial 0/0".
I never experienced any problems with the router simulation questions.
Eric
- Original Message -
From: "Dimitrije"
To:
Sent: W
This is normal behaviour: if you configure BRI as backup, it will go in
standby mode and line protocol goes down. You can avoid this by configuring
a dialer interface as backup. Then the dialer interface will go in standby
mode, but the BRI stays up!! This is preferred since:
1. some Telco's will l
way we get small bill" :)
>
> how about the routing section ? did you had a look at?
>
>
> cheers,
> Heiman.
>
> ""ericbrouwers"" wrote in message
> news:[EMAIL PROTECTED]
> > This is normal behaviour: if you configure BRI as backup, it will
Probably layer 1 and 2 are deactivated by the Telco. It's better to use a
dialer interface as backup of a serial line. Then L1/2 stays up. Refer to
other ISDN thread as well.
If you don't want to do that, try to change the TEI negotiation. Cisco's
default is TEI negotiation when the router is powe
Eurocontrol, the European organisation for safety of air navigation, is
planning to migrate parts of their international X.25 based networks to
IPv6.
Later UMTS (wireless 3G networks) releases will use IPv6 as well. Will last
some years though.
Eric
- Original Message -
From: "annlee"
T
Hi there,
If I wanted to be a CCIE, I would go for Security track or maybe the voice
track, but I think the latter is too specialized. Security is something you
need to know anyway, if you want to be a good and respected network
professional. Companies will understand that you know the most import
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