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New Member

CSM - backup reals not working as expected.

Hi,

I'm working on a config where the customer wants to both backup serverfarms on a CSM, which works and then within each farm, have a backup real.

The following config has been configured, however in serverfarm L1, both reals N01 and S01 are being used to balance connections, not just N01 as was expected. I have dug through the docs on CCO but it seems quite unclear to me. Any ideas, I have worked with server farms backing each other up within a vserver, but haven't seen this tried before.

!

serverfarm L1

nat server

nat client HIDE

real name S01

backup real name N01

inservice

real name N01

inservice standby

probe LDAP

!

serverfarm L2

nat server

nat client HIDE

real name S02

backup real name N02

inservice

real name N02

inservice

probe LDAP

!

vserver V1

virtual 1.1.1.1

serverfarm L1 backup L2

replicate csrp connection

no persistent rebalance

inservice

!

SW#sh mod csm 1 serverfarms name L1

nat = SERVER, CLIENT(HIDE)

virtuals inservice = 1, reals = 2, bind id = 0, fail action = none

inband health config: <none>

retcode map = <none>

Probes:

LDAP, type = script

Real servers:

N01, weight = 8, OPERATIONAL, conns = 27

S01, weight = 8, OPERATIONAL, conns = 26

Total connections = 47

!

Any help would be appreciated.

Regards,

Philip.

2 REPLIES
Cisco Employee

Re: CSM - backup reals not working as expected.

what software version ?

This works for me in 4.2.8

Gilles.

New Member

Re: CSM - backup reals not working as expected.

Hi Gilles,

Thanks, thats interesting, we use 4.2.4.

So the config is fine how it is and should only use the backup reals when the primary fails.

I suppose its likely a bug then.

Philip.

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