RE: Backup Interface of a Subinterface IE Lab 9 task 3.3

From: Scott Morris (swm@emanon.com)
Date: Fri Sep 29 2006 - 22:24:19 ART


Even in the dialer days, using "shutdown" never made the backup interface
commands work. I guess the router assumes you know what you are doing and
it doesn't need to react!

Try doing something different like on the other end, pull a cable or
something like that. You should see it work then.

 
Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713, JNCIE
#153, CISSP, et al.
CCSI/JNCI-M/JNCI-J
IPExpert VP - Curriculum Development
IPExpert Sr. Technical Instructor
smorris@ipexpert.com
http://www.ipexpert.com
 
 

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
msaeed@uaeu.ac.ae
Sent: Friday, September 29, 2006 5:30 PM
To: ccielab@groupstudy.com
Subject: Backup Interface of a Subinterface IE Lab 9 task 3.3

Hi all,

The requirement says that if line protocol of subinterface goes down the
backup interface shall come up. Now if I apply solution given in WB, which
is

interface Serial0
 no ip address
 encapsulation frame-relay
 no frame-relay inverse-arp
!
interface Serial0.401 point-to-point
 ip address 148.1.0.4 255.255.255.0
 backup delay 0 300
 backup interface Serial1
 shutdown
 frame-relay interface-dlci 401

and shutdown int s0.401, it puts backup interface in Disabled mode. But if I
apply same config on S0, then its OK if line protocol goes down on S0, S1
comes up, but if you just shutdown S0.401 it does not bring S1 up, so
doesn't meet the requirement!!! Any solution???

Regards,

Mohammad Zahed Saeed



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