We setup port channel of two 10G uplink interfaces on each Fabric Interconnect. Everything is running as expected. However we noticed that under 'Port-Channel # (Fabric #)' setting on LAN tap, 'Admin Speed' was set to '10Gbps'.
Should we leave this configuration as is or match to the maximum bandwidth of port Channel we set up (20Gbps)?
I only see four options on each port channel configuration, 1 Gbps, 10Gbps, 20Gbps and 40Gbps so I'm not sure if we should change this setting.
The Admin Speed settings 1/10/20/40 Gbps are availbale on physical interfaces from GUI as shown in your screen-shot. Just wondering where would 20 and 40 Gbps gets applied! I think no documentation is availble in the public domain in Cisco site. Can you please lead me to any documentation on this?
This Admin Speed is availablable not just on port-channel interfaces, but on physical interfaces as well. What confuses me is, I haven't heard of a 20Gbps Ethernet standard. The bug id is talking about Operational Speed not the Admin Speed. I was referring to the Admin Speed that you can set as part of configuration.
The card "VIC 1240" supports 4 x 10Base-KR or 8 x 10Base-KR (with expansion card). The adapter doesn't support 20Gbps on a single physical interface. The bug ID CSCtt98475 says 20Gbps will never exist. So I can't see a reason why the option of Admin Speed 20Gbps on physcial port required - EVER.
I don't believe the following statement is accurate from a physical interface perspective
"Some adapters do support 20 Gbps and they are available in UCSM for such hardware."
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