Back up interface

From: Tandou Mohamed (dtandou@yahoo.com)
Date: Sun Apr 29 2007 - 11:07:25 ART

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Hello GS,
  i am testing a back up interface with frame relay scenario looks like it is not working. Below is my configuration. when i shutdown the main interface i don't see the back up interface up i see it in the down state when i do sh run. Before shutting down the main interface when i do sh ip int brief it is in standby mode when the main interface is shut down it is showing standby mode/disabled. Please advise.
   
  Thanks,
   
  Mohamed
   
  R4
  interface Serial0/0
 backup delay 5 5
 backup interface Serial0/1
 ip address 192.168.54.4 255.255.255.0
 encapsulation frame-relay
 shutdown
 frame-relay map ip 192.168.54.5 562 broadcast
 no frame-relay inverse-arp
  !
  interface Serial0/1
 ip address 192.168.45.4 255.255.255.0
 encapsulation ppp
 shutdown ----------------->after main interface is down
   
   
   
  ==========================================================
  R5
  interface Serial0/0
 no ip address
 encapsulation frame-relay
 no ip mroute-cache
 tx-ring-limit 2
 tx-queue-limit 2
!
interface Serial0/0.54 point-to-point
 ip address 192.168.54.5 255.255.255.0
 frame-relay interface-dlci 652
!
interface Serial0/0.125 multipoint
 ip address 192.168.125.5 255.255.255.0
 frame-relay interface-dlci 612
 frame-relay interface-dlci 622
!
interface Serial0/1
 ip address 192.168.45.5 255.255.255.0
 encapsulation ppp
   
  ====================================================
   
  Before main interface is shutdonw
   
  R4#sh ip int b
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 10.1.6.4 YES manual up up
Serial0/0 192.168.54.4 YES manual up up
Serial0/0.124 unassigned YES manual deleted down
Serial0/0.234 unassigned YES manual deleted down
Serial0/1 192.168.45.4 YES manual standby mode down
Ethernet1/0 10.1.8.4 YES manual up up
Loopback0 155.1.4.4 YES NVRAM up up
   
  =======================================================
   
  After interface is shutdown
   
  R4#sh ip int b
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 10.1.6.4 YES manual up up
Serial0/0 192.168.54.4 YES manual administratively down down
Serial0/0.124 unassigned YES manual deleted down
Serial0/0.234 unassigned YES manual deleted down
Serial0/1 192.168.45.4 YES manual standby mode/disabled down
Ethernet1/0 10.1.8.4 YES manual up up
Loopback0 155.1.4.4 YES NVRAM up up
   
  Mohamed
   

       
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• Next message: Sasa Milic: "Re: Back up interface"
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