11-15-2017 06:31 AM - edited 03-08-2019 12:45 PM
Our network switches are configured to use PagP trunks between them.
I have recently installed a UCS series server for CUCM with two quad NICs and have configured it for NIC teaming on the VM side and on the Cisco side have configured 'static Ether-Channel' (Per Cisco only 'static Ether-Channel' is allowed).
However, since doing so I keep getting flooded with syslog messages that state that the Mac addresses of both the Call Manager and Unity server VMs are flapping between port channels (i.e., the 'static Ether-Channel' and the PAgP Ether-Channels).
Can the PAgP and Static Ether-Channels co-exist simultaneously? I cannot find any documentation, Cisco or otherwise, that states that they can co-exist simultaneously.
FYI, the load-balancing algorithms for each side is the following:
*VM-side NIC Teaming: Route Based IP Hash
*Cisco Switches: src-mac
Any assistance would be greatly appreciated.
11-15-2017 07:00 PM
Having PAGP on the uplink should not effect mode-on on the UCS side. Have you tried LACP on the UCS?
HTH
11-16-2017 06:20 AM
Per Cisco, only the static Ether-Channel (i.e., "on" mode) can be used with NIC teaming on the UCS server.
11-16-2017 06:26 AM
LACP is not an option on the UCS c-series stand-alone servers.
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