SNMP Monitoring of TFO Sessions

[4gshute]

I am interested in monitoring the performance of our WAEs using SNMP. I have had some success using the CISCO-WAN-OPTIMIZATION-MIB.

I have has some success in monitoring the sessions for each AO (but it is difficult to determine which AO is which)

.iso.org.dod.internet.private.enterprises.cisco.ciscoMgmt.ciscoWanOptimizationMIB.ciscoWanOptimizationMIBObjects.cwoAo.cwoAoStatsTable.cwoAoStatsEntry.cwoAoStatsActiveOptConns

A walk through the tree returns 7 stats (one for each AO I think).

However I am more interested in the TFO sessions, but the MIB appears not to return any values from the TFO objects:

.iso.org.dod.internet.private.enterprises.cisco.ciscoMgmt.ciscoWanOptimizationMIB.ciscoWanOptimizationMIBObjects.cwoTfo.cwoTfoStats.cwoTfoStatsActiveOptConn

Has anybody had any success with these variables in the MIB? Reporting session statistics to an SNMP management application would be very useful for trending and sizing WAAS deployments.

I am using WAAS version 4.4.5c and am not ready to upgrade to the latest release just yet.

Thanks in advance.

Graham

[Nicolas Fournier]

Hi Graham,

Could you try to poll the following OID:

.1.3.6.1.4.1.9.9.762.1.2.1.2

This should give you cwoTfoStatsActiveOptConn which is I believe what you are looking for.

Regards,

Nicolas

[4gshute]

Hi Nicolas,

Yes that is the OID that should report the number of sessions, but I am not getting a value returned.

However I do get a value from .1.3.6.1.4.1.9.9.762.1.3.1.1.11.4.99.105.102.115 which I believe is the CIFS AO current sessions. Could this me a MIB issue, or am I removing any dependencies on the MIB by using the OID directly?

Thanks for your help

Graham

[Nicolas Fournier]

Hi Graham,

Can you check the output of the following command on your device as it should give you the same value as the MIB:

show statistics connection optimized tfo

If you get values reported there and not on the MIB, it might be a bug which has been introduced in the latest software. Could you check if you have the same issue on WAAS devices running older code if you have any?

Regards,

Nicolas

[4gshute]

Definately sessions to report on:

AZ18NDL002#show statistics connection optimized tfo

Current Active Optimized Flows:                      6
   Current Active Optimized TCP Plus Flows:          3
   Current Active Optimized TCP Only Flows:          3
   Current Active Optimized TCP Preposition Flows:   0
Current Active Auto-Discovery Flows:                 0
Current Reserved Flows:                              10
Current Active Pass-Through Flows:                   6
Historical Flows:                                    367

D:DRE,L:LZ,T:TCP Optimization RR:Total Reduction Ratio
A:AOIM,C:CIFS,E:EPM,G:GENERIC,H:HTTP,M:MAPI,N:NFS,S:SSL,V:VIDEO

ConnID        Source IP:Port          Dest IP:Port            PeerID Accel RR  
10274   10.208.176.243:7113     10.255.192.155:80 00:26:55:ae:43:58 THDL  97.5%
10406    10.255.170.73:3960     10.208.176.52:445 00:26:55:ae:43:58 TCDL  87.6%
11217    10.255.170.73:3145    10.208.176.51:3389 00:26:55:ae:43:58 T     00.0%
11523    10.255.170.73:2726    10.208.176.96:3389 00:26:55:ae:43:58 T     00.0%
11524    10.255.170.73:2759   10.208.176.127:3389 00:26:55:ae:43:58 T     00.0%
11862   10.208.171.11:65509     10.208.176.51:445 44:2b:03:7d:e6:00 TDL   00.0%
AZ18NDL002#

I could try some downgrading of code.

Have you used this before successfully?

Thank you for your help

Best regards

Graham

[Nicolas Fournier]

Hi Graham,

This should work so I would definitively give it a try.

Maybe you could install the latest 4.1 on a box and see if you get proper values with that one or if you already get zero for this OID.

Regards,

Nicolas