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Xconnect l2tpv3 delay with backup peer (convergence)

sebastien3
Level 4
Level 4

Hello,

Can you tell me if it is possible to reduce the switchover time of an Xconnect in backup peer mode ?

On a router I use xconnect (l2tpv3) to a primary router and backup peer to the secondary router :

interface GigabitEthernet0/0/1
no ip address
negotiation auto
xconnect 10.10.10.1 11 encapsulation l2tpv3 pw-class PW-CLASS
backup peer 10.10.10.9 10 pw-class PW-CLASS

If I simulate a failure to the primary router, the xconnect switches to the secondary in a long time, about 2 minutes...

The delay 0 0 command does not change anything in the backup peer part...

If I use the switchover command the switch between primary and backup or vice versa works instantly !

xconnect backup force-switchover peer 10.10.10.1 11

xconnect backup force-switchover peer 10.10.10.9 10

An idea ?

Thanks

4 Replies 4

sorry let other help you, I am busy 

Thanks

MHM

Hi @MHM Cisco World 

No, I had already tried to use backup delay 0 never and that doesn't change anything...

RTR-1(config-if-xconn)#backup delay ?
  <0-180>  Enable delay

RTR-1(config-if-xconn)#backup delay 0 ?
  <0-180>  Disable delay
  never    Disallow disable

RTR-1(config-if-xconn)#backup delay 0 never 

Hi Friend 
I think you need second opinion in your VPWS issue 

for this case you can use BFD to make Peer fast detect down of remote peer 

MHM

 

sebastien3
Level 4
Level 4

Hi @MHM Cisco World 

Yes it's a very good idea BFD ! I'll look at it...

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