Solved: Major/Minor alarms while installinng new IOS (4.4.5c).

dilnaazhum · ‎01-15-2013

Hi,

I have 3750 stack switch and 2 numbers WAVE-7371 devices in datacentre with following details:

WCCPV2 mode with wccp 61 and 62 redirect-list services at 3750 Switch:

3750-1-SDC#sh ip wccp
Global WCCP information:
Router information:
Router Identifier: A.B.C.D

Protocol Version: 2.0

    Service Identifier: 61
Number of Service Group Clients:     2
Number of Service Group Routers:     1
Total Packets s/w Redirected:        9362
   Process:                           0
   CEF:                               9362
Redirect access-list:                REDIRECT-TO-WAE

    Service Identifier: 62
Number of Service Group Clients:     2
Number of Service Group Routers:     1
Total Packets s/w Redirected:        42404
   Process:                           0
   CEF:                               42404
Redirect access-list:                REDIRECT-TO-WAE

In WAVE 7371, i have WCCP V2 tcp-promiscuous with l2-redirect mask-assign.

wccp tcp-promiscuous router-list-num 1 l2-redirect mask-assign

wccp version 2

Recently i have tried to Upgrade the IOS with 4.4.5c but got struck with multiple error message and observed that Connection is not established with 3750 stack switch.

Error Logs are as follows:

WAE1-DC#sh alarm
Critical Alarms:
----------------
None

Major Alarms:
-------------
None

Minor Alarms:
-------------
        Alarm ID                 Module/Submodule               Instance
   ---------------             --------------------          ---------------
   1 rtr_unusable              WCCP/svc061/rtrX.Y.Z.A
   2 rtr_unusable              WCCP/svc062/rtrX.Y.Z.A

WAE1-DC#show alarm minor detail
Minor Alarms:
-------------
        Alarm ID                 Module/Submodule               Instance
   ---------------             --------------------          ---------------
   1 rtr_unusable              WCCP/svc061/rtrX.Y.Z.A
     Jan 5 16:14:02.124 IST, Communication Alarm, #000020, 17000:17003
     WCCP router 10.59.1.49 unusable for service id: 61 reason: Redirect method mismatch with router

   2 rtr_unusable              WCCP/svc062/rtrX.Y.Z.A
     Jan 5 16:14:02.124 IST, Communication Alarm, #000021, 17000:17003
     WCCP router X.Y.Z.A unusable for service id: 62 reason: Redirect method mismatch with router

WAE1-DC#sh alarm
Critical Alarms:
----------------
None

Major Alarms:
-------------
        Alarm ID                 Module/Submodule               Instance
   ---------------             --------------------          ---------------
   1 mask_mismatch             WCCP/svc061
   2 missing_assignment        WCCP/svc061
   3 mask_mismatch             WCCP/svc062
   4 missing_assignment        WCCP/svc062

Tried with executing multiple command but got minor/major alarms with no connectivity to 3750 stack switch.

wccp tcp-promiscuous router-list-num 1

wccp tcp-promiscuous router-list-num 1 l2-redirect mask-assign

wccp tcp-promiscuous router-list-num 1 hash-source-ip hash-destination-ip l2-redirect l2-return

wccp tcp-promiscuous service-pair 61 62 failure-detection 30

Kindly suggest if any solution for above problem.

pevaneyn · ‎01-15-2013

Hi,

Severy things could cause the problem. For starts please have a look at http://www.cisco.com/en/US/prod/collateral/contnetw/ps5680/ps6870/white_paper_c11-608042.html (the WCCP Platform support white paper). This will tell you that for a 3750 you need to use: MASK and L2 redirection. You can use a redirection ACL but it cannot contain deny entries. You can only use IN coming redirection.

In The WAAS configuration this means:

wccp tcp-promiscuous router-list-num 1 l2-redirect l2-return mask-assign

There is no need to configure other options.

The IP used in the router list must be L2 adjacent to the WAE. After configuring this on all WAE devices please shutdown the WCCP on the switch and then turn it back on again after waiting for a minute or two.

Then the WCCP should work correctly.

Peter

View solution in original post

pevaneyn · ‎01-15-2013

Hi,