[j-nsp] load balancing 'per flow'

[Bosco Sachanandani]

Hello all,

I understand that Internet Processor II only supports load balancing per flow and not per packet (as CEF does).

Can someone throw some more light on what exactly does 'per flow' mean ? The reason I am asking this is:

1) Is it per VRF ? For eg all PE to PE traffic for VRF A will go via link 1 and all PE to PE traffic for VRF B will go via link 2?

2) Or is it that 'flows' between various IP addresses WITHIN each VRF will go via alternate links ? For eg. Prefix 10.0.0.0/8 which is within VRF A will go via Link 1 and Prefix 20.0.0.0/8 which is also within VRF A will go via Link 2 ?

Additionally,
For any sort of load balancing between the 2 PE to PE links, do I need to explicitly add a policy  or will it happen anyway if the IGP recognises it as equal cost links ? We are using LDP between these routers.

Any help would be great. I am running version 5.5R3.1 between 3 M20 routers.

Thanks


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