Issue trying to make MRA Lab Work (Failure: FAILED_EDGE_CONNECTION) - Dual NIC

[Juan Gerardo Hernandez]

Hi all,

I am trying to get jabber mra work in my home lab, but I am not able to make it work.

I get to the point for the jabber to ask me for credentials, but thats it, the next very thing I see is "cannot communicate with the server"

Then I get this.

2021-03-11 02:40:58,096 INFO  [0x00001ffc] [ndiscovery\DiscoveryCacheManager.cpp(52)] [service-discovery] [CSFUnified::DiscoveryCacheManager::saveToServiceLocationCache] - Write to Cache with result: SUCCESS
2021-03-11 02:40:58,096 DEBUG [0x00001ffc] [covery\ServiceDiscoveryHandler.cpp(1516)] [service-discovery] [CSFUnified::isCucmServiceInformationAvailable] - service discovery result is empty
2021-03-11 02:40:58,096 DEBUG [0x00001ffc] [covery\ServiceDiscoveryHandler.cpp(1535)] [service-discovery] [CSFUnified::isCupServiceInformationAvailable] - service discovery result is empty
2021-03-11 02:40:58,096 INFO  [0x00001ffc] [ationdiscovery\DiscoveryLogUtils.cpp(53)] [service-discovery] [CSFUnified::DiscoveryLogUtils::LogServiceInformationVect] - *-----* DNS services found: 
2021-03-11 02:40:58,096 INFO  [0x00001ffc] [vices\impl\DiscoveryHandlerImpl.cpp(651)] [service-discovery] [CSFUnified::DiscoveryHandlerImpl::evaluateServiceDiscoveryResult] - ServiceDiscoveryHandlerResult return code FAILED_EDGE_CONNECTION
2021-03-11 02:40:58,096 INFO  [0x00001ffc] [-diagnostics\src\DiagnosticsImpl.cpp(50)] [csf.diagnostics] [CSFDiagnostics::DiagnosticsImpl::AddRecord] - Add record task enqueued: Discovery Outcome

could you please help me to make it work?

Note:

1. cucm servers (pub/sub) are discovered properly.

2. traversal zone is up/active.

3. Jabber can login without any issues when it is inside the network.

here is the Problem report file from the jabber for windows.

flow:

Internet (192.168.140.X) --> collab-edge --> Outside NAT -->FW--> expwe-ext (192.168.130.X) --> expwe-int (192.168.120.X) -->FW--> expwc (192.168.20.X) --> CUCM(192.168.20.X)

Software:

CUCM 12.5 (no IMP, no CUC)

EXPW: 12.7

Jabber: 12.7

Thank you very much for your help.

[Nithin Eluvathingal]

Take logs from both Expressway E and C and use it on CSA tool. you will come to know more information.

https://cway.cisco.com/csa/

[Juan Gerardo Hernandez]

Hi Nithin,

Thank you for your reply.

Could you please kindly let me know which is the best way to get the Expressway logs that we would use for troubleshooting.!?

I am new into this,

Thank you very much.

[Nithin Eluvathingal]

Have a look on below document.

https://www.cisco.com/c/en/us/support/docs/unified-communications/expressway/213360-collect-expressway-vcs-diagnostic-log-fo.html

[Juan Gerardo Hernandez]

Thank you,I got the logs.

I made a change here... my company domain for the internet (lab.global) is different of the company domain (lab.local)... hence, there is not cisco-uds.tcp.lab.global inside the internal DNS record for expressway C. I have heard that in EXPW 12.5 this is no longer required because the EXPW C will contact a random UCM node to look for the home cluster of the user.

Please be aware there are a lot of issues, this is a home lab. :S

[Nithin Eluvathingal]

Go through the configuration guide and do required configuration for MRA to work.

https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/expressway/config_guide/X12-6/exwy_b_mra-expressway-deployment-guide.html

Analysing the logs you have so many issues.

[Juan Gerardo Hernandez]

Thank you,

I will work on the certificate part. (I don't have IM&P, is this mandatory?

Do you have any recommendation for having 2 different domains 1 for external and 1 for internal?

This is it:

Jabber MRA@lab.global (192.168.140.X) --> Expressway NAT(FW) --> Expressway E-Ext (192.168.130.0) --> Expressway E-Int (192.168.120.0) --> Internal FW --> Expressway C (192.168.20.0) --> Internal UCM nertwork doman @lab.local (192.168.20.0)