topic Redundancy CSM's show difference result of that "show mod csm # real". in Application Networking

Redundancy CSM's show difference result of that "show mod csm # real".

drazik — Thu, 11 Nov 2004 12:43:20 GMT

Two active/standby CSM's configured in tow Switch box.

CSM is active. the other is standby.

Two CSM show different connection information.

- Active : 1159, Standby : 227

Why different result has shown ?

Do Active CSM working loadbalancing, and Standby just show active CSM's information ???

Please let me know Why different result occured ??

thanks..

######## result of CLI ###########

ActiveCSM#show mod csm 9 real sfarm WWW-SVR_FARM

real server farm weight state conns/hits

-------------------------------------------------------------------------

192.168.100.243 WWW-SVR_FARM 8 OUTOFSERVICE 0

192.168.100.244 WWW-SVR_FARM 8 OUTOFSERVICE 0

192.168.100.245 WWW-SVR_FARM 8 OUTOFSERVICE 0

192.168.100.246 WWW-SVR_FARM 8 OUTOFSERVICE 0

192.168.100.205 WWW-SVR_FARM 8 OPERATIONAL 253

192.168.100.206 WWW-SVR_FARM 8 OPERATIONAL 207

192.168.100.207 WWW-SVR_FARM 8 OPERATIONAL 242

192.168.100.208 WWW-SVR_FARM 8 OPERATIONAL 228

192.168.100.210 WWW-SVR_FARM 8 OPERATIONAL 232

ActiveCSM#

ActiveCSM#show mod csm 9 vservers name WWW-SVR

vserver type prot virtual vlan state conns

---------------------------------------------------------------------------

WWW-SVR SLB TCP 192.168.100.242/32:80 ALL OPERATIONAL 1159

StandbyCSM#show mod csm 9 real sfarm WWW-SVR_FARM

real server farm weight state conns/hits

-------------------------------------------------------------------------

192.168.100.243 WWW-SVR_FARM 8 OUTOFSERVICE 0

192.168.100.244 WWW-SVR_FARM 8 OUTOFSERVICE 0

192.168.100.245 WWW-SVR_FARM 8 OUTOFSERVICE 0

192.168.100.246 WWW-SVR_FARM 8 OUTOFSERVICE 0

192.168.100.205 WWW-SVR_FARM 8 OPERATIONAL 35

192.168.100.206 WWW-SVR_FARM 8 OPERATIONAL 32

192.168.100.207 WWW-SVR_FARM 8 OPERATIONAL 70

192.168.100.208 WWW-SVR_FARM 8 OPERATIONAL 62

192.168.100.210 WWW-SVR_FARM 8 OPERATIONAL 28

StandbyCSM#

StandbyCSM#show mod csm 9 vservers name WWW-SVR

vserver type prot virtual vlan state conns

---------------------------------------------------------------------------

WWW-SVR SLB TCP 192.168.100.242/32:80 ALL OPERATIONAL 227

StandbyCSM#

Re: Redundancy CSM's show difference result of that "show mod cs

Gilles Dufour — Thu, 11 Nov 2004 16:03:56 GMT

the standby CSM should not handle any traffic.

However, if you do have connection replication enable [csrp under the vserver], then the active CSM will replicate interesting traffic to the standby.

Interesting traffic is traffic matching the vserver and active for more than 2 seconds.

We usually never see the exact same amount of connections on the standby CSM because of the 2seconds delay before we replicate a connection.

Regards,

Gilles.

Re: Redundancy CSM's show difference result of that "show mod cs

drazik — Fri, 12 Nov 2004 01:03:06 GMT

thanks for your answer.

I have 1 question more.

If csrp is removed from Vserver configuration, then not standby CSM show connection information but active CSM show this ????

Do only active CSM have connection counter ?

Re: Redundancy CSM's show difference result of that "show mod cs

Gilles Dufour — Mon, 15 Nov 2004 09:36:11 GMT

if you remove csrp, only active csm counters should increase.

If it is not zero on the standby, that's possible if the standby became the master at one time.

So if it is not zero, check if it is increasing.

If it is not increasing, then there is no problem.

Regards,

Gilles.