multilink 7609 multiple flexwan modules

[rajivrajan1]

Dear Friends,

I have replaced 7507s with two 7609s, which is having multple intercity links terminated.other end is terminated in 7200/7500.

These 7609s are having two flex wan modules, I want to terminate links on different modules for redundancy other end is going to same device.

when im trying to budle the links with multilink , observing strange behaviour.

1. Point to point links are pining fine.

2. Traffic is not passing through multilink ( not going to next hop)

3. fragmnetation errors are received.

If im terminating the same links to one flexwan module ( instead of connecting them to different modules) , Its working fine.

Did anyone faced this kinda issues ? ... solved ?:P

Please help.

[Giuseppe Larosa · Accepted solution]

Hello Raij,

unforturnately multilink over ports of different PA on different flexwan modules is not supported you need to change your IP address plan in order to use each link as an indipendent L3 link

see

. All lines in a bundle must  reside on the same port adapter.

•MLPPP bundles across FlexWAN or  Enhanced FlexWAN port adapters are not supported.

http://www.cisco.com/en/US/docs/routers/7600/install_config/flexwan_config/features.html#wp84027

this is big difference with older C7500 that supported it

Hope to help

Giuseppe

[rajivrajan1]

hi Giuseppe,

Thnx .. that is correct.

thnx for the info again.