L2 and L3 Forwarding Method in the Same WAE

[lomonaco]

      Hi Everyone,

      Is possible to use simultaneously L2 and L3 Forwarding Method (WCCPv2) in the same WAE.

      I wanna to design a cluster with 2 WAE using the same service group in a DC and I wanna support both the L2 and L3

      Forwarding Method at the same time..

      If yes, is there any link when I can get a documentation showing some example configuration

     Thanks in Advanced,

     My Best Regards,

         Andre Lomonaco

[ahskhan]

Hi Andre,

         In a single WCCP Farm, (same Service Group) you need to have same Redirect, Assign and return method, otherwise WCCP will run into issues. Can you explain more as what you are trying to achieve and may be I can help?

Ahsan

[lomonaco]

Hi Ahsan,

    Thanks for your prompt reply..

     I have an scenario where I have 2 DCs with Asymmetric Traffic, so I wanna to use the approach to do the transparent interception logic across the WAN Edge Layers in both DataCenters. I think I must use a single WCCP service group in this scenario with L3 Generic GRE.

    My doubt is if I can use those WAEs to do, both L2 and L3 WCCP Interception, cause I will have L3 traffic through the 6500 Wan Switches and L2 too

[ahskhan · Accepted solution]

Hi Andrej,

         If I understand this correctly, then your best option is to use G-GRE (Generic GRE) as egress method, and use GRE redirection and MASK assignment. See an Example below.

wccp router-list 1 172.16.10.1
wccp tcp-promiscuous service-pair 61 62 router-list-num 1 mask-assign
wccp version 2
egress-method generic-gre intercept-method wccp

For more details, please follow below CCO URL.

http://www.cisco.com/en/US/docs/app_ntwk_services/waas/waas/v441/configuration/guide/traffic.html#wp1041742

Ahsan

[lomonaco]

Hi Ahsan,

    Thanks a Lot for your help

    My Best Regards,

     Andre Lomonaco

[ahskhan]

Hi Andrej,

If I understand this correctly, then your best option is to use

G-GRE (Generic GRE) as egress method, and use GRE redirection and MASK

assignment. See an Example below.

wccp router-list 1 172.16.10.1

wccp tcp-promiscuous service-pair 61 62 router-list-num 1 mask-assign

wccp version 2

egress-method generic-gre intercept-method wccp

For more details, please follow below CCO URL.

http://www.cisco.com/en/US/docs/app_ntwk_services/waas/waas/v441/configurati

on/guide/traffic.html#wp1041742

Ahsan

[ahskhan]

Hi Andre,

In a single WCCP Farm, (same Service Group) you need to have same

Redirect, Assign and return method, otherwise WCCP will run into issues. Can

you explain more as what you are trying to achieve and may be I can help?

Ahsan