01-24-2023 07:40 AM
Good morning all. I am studying Cisco networking via uCertify with my university, and I am at the EtherChannel lesson.
In the image below, the EC status is given as Desirable-Sl.
Can anyone explain to me what the -Sl portion of this string represents?
Thanks in advance,
Shane
01-24-2023 09:33 AM
- SI stands for "stateful" or "static" interoperability. It is a feature of Cisco's EtherChannel technology that allows for the negotiation of EtherChannel link aggregation between devices running different versions of the protocol. The "Desirable-SI" state in the output of the "show etherchannel" command indicates that the local device is actively trying to form an EtherChannel bundle with a remote device and is willing to use stateful interoperability to do so.
M.
01-26-2023 03:57 AM - edited 01-26-2023 04:01 AM
I appreciate your response. However, I am still not satisfied, as 1) someone else very confidently informed me that this indicates PAgP [silent | non-silent] mode, and 2) I have yet to find a way to alter the Etherchannel settings in a lab environment to make that EC status change to something else (at least in Packet Tracer).
I see the below output from somewhere on the Interwebs, but I cannot replicate it:
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