WCCP Hash Allotment 0% (ASA)

[Sakun Sharma]

Hi

On my ASA in WCCP configuration, the hash allotment is 0%, due to which packets are not getting redirected.

WCCP Cache-Engine information:
        Web Cache ID:          10.2.84.6
        Protocol Version:      2.0
        State:                 Usable
        Initial Hash Info:     00000000000000000000000000000000
                               00000000000000000000000000000000
        Assigned Hash Info:    00000000000000000000000000000000
                               00000000000000000000000000000000
        Hash Allotment:        0 (0.00%)
        Packets Redirected:    431950491
        Connect Time:          1w6d

WCCP hash bucket assignments:

        Index  Cache Engine:
          00   10.2.166.6
          FF   NOT ASSIGNED

        XX|  0  1  2  3  4  5  6  7   8  9  A  B  C  D  E  F
        --|-------------------------------------------------
        00| FF FF FF FF FF FF FF FF  FF FF FF FF FF FF FF FF
        10| FF FF FF FF FF FF FF FF  FF FF FF FF FF FF FF FF
        20| FF FF FF FF FF FF FF FF  FF FF FF FF FF FF FF FF
        30| FF FF FF FF FF FF FF FF  FF FF FF FF FF FF FF FF
        40| FF FF FF FF FF FF FF FF  FF FF FF FF FF FF FF FF
        50| FF FF FF FF FF FF FF FF  FF FF FF FF FF FF FF FF
        60| FF FF FF FF FF FF FF FF  FF FF FF FF FF FF FF FF
        70| FF FF FF FF FF FF FF FF  FF FF FF FF FF FF FF FF
        80| FF FF FF FF FF FF FF FF  FF FF FF FF FF FF FF FF
        90| FF FF FF FF FF FF FF FF  FF FF FF FF FF FF FF FF
        A0| FF FF FF FF FF FF FF FF  FF FF FF FF FF FF FF FF
        B0| FF FF FF FF FF FF FF FF  FF FF FF FF FF FF FF FF
        C0| FF FF FF FF FF FF FF FF  FF FF FF FF FF FF FF FF
        D0| FF FF FF FF FF FF FF FF  FF FF FF FF FF FF FF FF
        E0| FF FF FF FF FF FF FF FF  FF FF FF FF FF FF FF FF
        F0| FF FF FF FF FF FF FF FF  FF FF FF FF FF FF FF FF

Can you suggest the issue, why hash is not allocated?

Regards

Sakun

[Sakun Sharma]

Recreating dynamic service ID fixed the issue. But I am not sure why it happened.

[Ajay Saini]

The only reason why this should happen is if the service id is not same on ASA and the wccp cache engine. Once the id is matched, then the ports are decided by wccp cache engine(as defined) and redirection is done. Hashing comes later. Please ensure that the service id is same.

Usually, we tend to use the default service ids, but we can map any service id to any port as desired. 

-

AJ

[RaviKumar83661]

wccp redirection stops intermittently and post reboot of ASA firewall or WSA proxy it starts working again. No changes related to wccp is being done when the issue occurs. Anyone facing similar issue