From: Brian McGahan (bmcgahan@internetworkexpert.com)
Date: Mon Jul 25 2005 - 13:57:07 GMT-3
Dillon,
4. DO NOT use "isdn test" command that has no assurance the L3
connectivity and waste my half hour.
The point of using the "isdn test call" command is to test layer
2 connectivity only. If you use this command and layer 2 connectivity
is successful it means that any problem you have is with your
configuration, and is completely unrelated to the layer 1 or layer 2
hardware.
Also this test should not take more than 5 minutes maximum. If
it is taking you a half hour to put the ISDN switch-type on, define the
SPID value(s) (if required), and issue the "isdn test call" command then
you need to work on your speed of core configurations.
HTH,
Brian McGahan, CCIE #8593
bmcgahan@internetworkexpert.com
Internetwork Expert, Inc.
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> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
> Dillon Yang
> Sent: Sunday, July 24, 2005 11:23 PM
> To: Thomwin Chen; Group Study
> Subject: Re: lesson from failure
>
> 1. If ACL, use numerical ACL as possible.
> 2. If you want to prevent advertising update, use passive-interface as
> possible.
> 3. Do map FR interface to ping itself even if you are instructed with
"you
> do not need".
> 4. DO NOT use "isdn test" command that has no assurance the L3
> connectivity and waste my half hour.
> 5. DO config ISDN part at the last step or the 4-point section will
reduce
> your 10 points or more.
>
>
> Hi, Thomwin:
>
> Yes, the class B address will cause RIP advertise on all the
interface,
> so you need "passive-interface" to restrict the advertising.
>
> HTH
> dillon
>
>
> ----- Original Message -----
> From: "Thomwin Chen" <thomwin_chen@yahoo.com>
> To: "Dillon Yang" <dillony@gmail.com>; "Group Study"
> <ccielab@groupstudy.com>
> Sent: Monday, July 25, 2005 10:01 AM
> Subject: Re: lesson from failure
>
>
> > if you are using RIP,
> > let's say you have :
> > fa0/0 : 172.16.1.1/24
> > fa0/1 : 172.16.2.1/24
> >
> > passive-interface fa0/1 won't make RIP stop advertising
172.16.2.0/24,
> you should explicitly filter it. (RIP use network 172.16.0.0
statement)
> >
> > but if you are using eigrp & ospf the network statement is more
> granular, so you can control more specific what eigrp will advertise
and
> enable. (network 172.16.1.1 0.0.0.0)
> >
> > Dillon Yang <dillony@gmail.com> wrote:
> > 1. If ACL, use numerical ACL as possible.
> > 2. If advertise update, use passive-interface as possible.
> >
> > HTH
> > dillon
> >
> >
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