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Community Member

CSM : Wrong session replication

Hi,

I have two CSM with version 4.1(7) with Fault Tolerence enabled. Sessions are replicated on the standby CSM, but all sessions are replicated to a unique real server...Please see the attached file for a sample show command display.

The bug tracker does not mention any bug in this regard, but I don't think this is a config mistake in deed..The problem is that I can't upgrade to version 4.2 as mor memory would be required.

Thank you for any help

Yves Haemmerli

9 REPLIES
Cisco Employee

Re: CSM : Wrong session replication

Yves,

there were 2 known issues like this in the past.

CSCef63166

Externally found severe defect: Resolved (R)

Standby CSM reporting max-conns reached on first real

There was another one related to server using same ip but different ports. Just can't find right now.

It should be fixed however in version 4.1.7

Could you give me the serverfarm/reals config so I can try to reproduce and see if this is fixed in 4.2 or not

Thanks,

Gilles.

Community Member

Re: CSM : Wrong session replication

Hi Gilles,

As your request, I attach the CSM primary and standby configuration.

Thanks for your help, I will investigate as well..

Yves

Cisco Employee

Re: CSM : Wrong session replication

Yves,

are you sure about the version you are running ?

I tested your config in the lab and it works fine for me. Your config matches the known ddts I sent you but it is fixed in 4.1.7

Could you get a 'sho mod' and send it to me.

Thanks,

Gilles.

Community Member

Re: CSM : Wrong session replication

Here they are for both routers:

gvatro10#sh mod

Mod Ports Card Type Model Serial No.

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

1 2 Catalyst 6000 supervisor 2 (Active) WS-X6K-SUP2-2GE SAL08486JC5

3 8 8 port 1000mb GBIC Enhanced QoS WS-X6408A-GBIC SAL0535AY8W

4 0 SLB Application Processor Complex WS-X6066-SLB-APC SAD0739025C

5 8 8 port 1000mb GBIC Enhanced QoS WS-X6408A-GBIC SAL063557NF

6 6 Firewall Module WS-SVC-FWM-1 SAD0734018T

7 8 8 port 1000mb GBIC Enhanced QoS WS-X6408A-GBIC SAL08342NWQ

9 48 48 port 10/100 mb RJ45 WS-X6348-RJ-45 SAD04510GVC

Mod MAC addresses Hw Fw Sw Status

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

1 0011.935f.72dc to 0011.935f.72dd 5.1 7.1(1) 12.1(22)E6 Ok

3 0005.9a8a.ca20 to 0005.9a8a.ca27 2.0 5.4(2) 8.3(0.111)TF Ok

4 000d.bcaf.94c0 to 000d.bcaf.94c7 1.7 4.1(7) Ok

5 000a.b7a0.3b80 to 000a.b7a0.3b87 2.1 5.4(2) 8.3(0.111)TF Ok

6 0003.feac.b256 to 0003.feac.b25d 2.0 7.2(1) 2.3(2) Ok

7 0011.bbb5.0878 to 0011.bbb5.087f 3.1 5.4(2) 8.3(0.111)TF Ok

9 0003.32b9.7cae to 0003.32b9.7cdd 1.5 5.4(2) 8.3(0.111)TF Ok

Mod Sub-Module Model Serial Hw Status

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

1 Policy Feature Card 2 WS-F6K-PFC2 SAL08517A4M 3.5 Ok

1 Cat6k MSFC 2 daughterboard WS-F6K-MSFC2 SAL08517DMD 2.8 Ok

gvatro5#sho mod

Mod Ports Card Type Model Serial No.

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

1 2 Catalyst 6000 supervisor 2 (Active) WS-X6K-SUP2-2GE SAD062301BL

2 8 Network Analysis Module WS-SVC-NAM-2 SAD0736004G

3 16 SFM-capable 16 port 1000mb GBIC WS-X6516A-GBIC SAL09138757

4 0 SLB Application Processor Complex WS-X6066-SLB-APC SAD0739023Y

5 8 8 port 1000mb GBIC Enhanced QoS WS-X6408A-GBIC SAL09063EHW

6 6 Firewall Module WS-SVC-FWM-1 SAD0730016A

7 8 8 port 1000mb GBIC Enhanced QoS WS-X6408A-GBIC SAL09073HF1

8 48 48 port 10/100 mb RJ45 WS-X6348-RJ-45 SAD0451006Y

9 8 8 port 1000mb GBIC Enhanced QoS WS-X6408A-GBIC SAL09169FFZ

Mod MAC addresses Hw Fw Sw Status

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

1 0001.c9db.3c88 to 0001.c9db.3c89 3.7 7.1(1) 12.1(22)E6 Ok

2 0003.feac.993c to 0003.feac.9943 2.0 7.2(1) 3.4(1a) Ok

3 0013.c37a.3f08 to 0013.c37a.3f17 4.2 7.2(1) 8.3(0.111)TF Ok

4 000d.bcaf.9a30 to 000d.bcaf.9a37 1.7 4.1(7) Ok

5 0013.604e.aa70 to 0013.604e.aa77 3.1 5.4(2) 8.3(0.111)TF Ok

6 0003.feac.b5c6 to 0003.feac.b5cd 2.0 7.2(1) 2.2(1) Ok

7 0013.604e.a670 to 0013.604e.a677 3.1 5.4(2) 8.3(0.111)TF Ok

8 0002.fc23.5ca0 to 0002.fc23.5ccf 1.5 5.4(2) 8.3(0.111)TF Ok

9 0013.c3aa.0b60 to 0013.c3aa.0b67 3.1 5.4(2) 8.3(0.111)TF Ok

Mod Sub-Module Model Serial Hw Status

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

1 Policy Feature Card 2 WS-F6K-PFC2 SAD062301SL 3.2 Ok

1 Cat6k MSFC 2 daughterboard WS-F6K-MSFC2 SAD0623026N 2.3 Ok

Cisco Employee

Re: CSM : Wrong session replication

sorry for that, I was misreading my results.

I can actually reproduce the problem with 4.1.7.

Seems to be a new one.

I'll submit a new bug and look for possible workaround.

Gilles.

Cisco Employee

Re: CSM : Wrong session replication

sorry for that, I was misreading my results.

I can actually reproduce the problem with 4.1.7.

Seems to be a new one.

I'll submit a new bug and look for possible workaround.

Gilles.

Community Member

Re: CSM : Wrong session replication

Gilles,

Here is the show module command on the primary CSM.The same version is installed on the standby CSM

Yves

Community Member

Re: CSM : Wrong session replication

OK Gilles, our messages crossed each-other...thank you for you valuable support. We really appreciate.Please keep posting an append here if an official bug number is opened, so we can keep track on it.

Yves Haemmerli (yha@ch.ibm.com)

Cisco Employee

Re: CSM : Wrong session replication

I could not find an existing bug matching this issue because I was looking into fixed bug.

I finally found it, in the not-fixed-yet bug list.

CSCei73146

Standby CSM reporting all connections all first real

Gilles.

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