Backup Interface of a Subinterface IE Lab 9 task 3.3

From: msaeed@uaeu.ac.ae
Date: Fri Sep 29 2006 - 18:29:30 ART


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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