UCCX: UCOS NIC Speed Duplex Change Help Needed

[dunn]

Hello all,

Thank you in advance, and understand this has been discussed several times, so need clarification help please.

Need help to correct process/procedure to set ethernet NIC in UCCX VM from 100/Full-Duplex to 1000/Full-Duplex. OS CLI cannot change this.

Problem Symptom:

UCCX prompts occasionally garbled when played out to callers from PSTN.

Additional Information:

Trying to isolate the source of the problem, and eliminating possible causes.

Found the UCCX server publisher been set to 100Mbps, Full Duplex.

The hardware platform is UCS C220-M3, also hosting CUCM and Unity Connection, these VMs are successfully running with their ethernet interfaces at 1000Mbps Full Duplex (auto negotiate).

I understand that garbled voice could also be network related, so am trying to eliminate as many possible causes.

I don't see any errors on the switch ports interfaces for the UCS host.

Troubleshooting:

 - have verified the vmnic0 and vmnic1 on the host is both setup to 1000/full

 - have tried rebooting, restarting VM

Environment:

- UCS C220 M3

- UCCX v10.6.1-11000-31

- VM is built with v8 image/template

Really appreciate any next steps or references, or if I need to open a TAC case for assistance.

[James Hawkins]

Hi,

You should be able to change the NIC mode by SSH'ing to the CCX virtual machine and using the set network nic eth0 command as shown below:

admin:set network nic eth0 ?

Syntax:
set network nic eth0 param [value]

param mandatory auto, speed, duplex
value mandatory for auto : [en/dis]
for speed : [10/100]
for duplex: [half/full]

NOTE: 1000BASE-T can only be enabled via auto-negotiation

[dunn]

Hello,

Thank you for the reply, and tried without success.



The problem is the CLI commands are only good for MCS servers, but not
virtual machines, command not accepted.

[Anthony Holloway]

Where did you see UCCX is set to 100Full? Was it in the output of this command: "show network eth0 detail" ?

Can you also double check whether or not your VM is using a VMXNET3 network adapter in VMware, or a Flexible adapter?

[dunn]

Thank you Anthony, details are:

* Network Adapter: Flexible
* I see it is set to 100/Full-Duplex, Auto disabled in CLI with 'show
network eth0'



The UC environment we have adopted, the customer had been through upgrades,
so believe historically may have been built this way, about 6 years ago.

I believe the Flexible driver is one factor to possibly eliminate, but how
can you change this without deleting the adapter and creating it again, and
not affect the licensing?

[Anthony Holloway]

Ok. So I believe you just need to change the NIC type to VMXNET3 and you'll see it as 1Gbps, bit on all my systems it's still showing auto disabled, and so I don't think that's your problem.

The instructions can he found here:

Section:Modifying  the Network Adapter

 https://www.cisco.com/web/software/283088407/108296/cucm_10.0_vmv7_v1.7.ova.README.txt