topic If cache go down, how to bypass Transparent Caching in CSM ? in Application Networking

If cache go down, how to bypass Transparent Caching in CSM ?

drazik — Thu, 26 May 2005 11:53:46 GMT

hi.

I configured transparent caching in CSM.

But cache go down, CSM dropped traffic to web server.

In this case, deed more configuration?

please me know how to bypass in cache go down .

thanks.

============== CSM configuration ==================

module ContentSwitchingModule 3

vlan 10 client

ip address 192.168.112.2 255.255.255.0

route 172.29.0.0 255.255.0.0 gateway 192.168.112.1

vlan 11 server

ip address 192.168.112.2 255.255.255.0

gateway 192.168.112.3

route 172.18.1.10 255.255.255.255 gateway 192.168.112.4

probe CACHE icmp

interval 2

retries 1

failed 2

receive 1

serverfarm CACHE

no nat server

no nat client

real 172.18.1.10

inservice

probe CACHE

serverfarm FORWARD

no nat server

no nat client

predictor forward

policy NOCACHE

client-group 10

serverfarm FORWARD

policy CACHE

serverfarm CACHE

vserver FROMCACHE

virtual 0.0.0.0 0.0.0.0 any

serverfarm FORWARD

persistent rebalance

inservice

vserver REDIRECT

virtual 0.0.0.0 0.0.0.0 tcp www

vlan 10

serverfarm CACHE

persistent rebalance

slb-policy NOCACHE

slb-policy CACHE

inservice

access-list 10 permit 172.29.1.10

Re: If cache go down, how to bypass Transparent Caching in CSM ?

Gilles Dufour — Thu, 26 May 2005 13:40:04 GMT

under your vserver redirect, instead of configuring 'serverfarm cache' configure 'serverfarm cache backup forward'

If the serverfarm cache goes down, the CSM will use the backup which is a forward.

However, in this case, the response from the server will probably not come back to the CSM, so you should configure the vserver with the command 'unidirectional' as well.

Regards,

Gilles.

Re: If cache go down, how to bypass Transparent Caching in CSM ?

drazik — Fri, 27 May 2005 00:40:13 GMT

Hi. Gilles.

Thanks for your reponse.

I've solved this issue.

Sangjun.