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lacp/pagp Etherchannel Trunking

Is it preferred to utlize lacp for our Etherchannel trunking protocol? Is there a recommended "standard" everyone is using?

We just found out we can only use lacp across a stack of 3750's; however, the Cisco Configuration Recommendation for etherchannel speaks of using:

channel-group 1 mode desirable.

(desirable meaning pagp)

Would I believe Cisco may eventually follow and use LACP in much the same way as ISL became Dot1q?

We'd appreciate any feedback and/or advice. Thanks.

3 REPLIES
Hall of Fame Super Bronze

Re: lacp/pagp Etherchannel Trunking

Would I believe Cisco may eventually follow and use LACP in much the same way as ISL became Dot1q?

Perfect comparison and that's about to happen.

__

Edison.

New Member

Re: lacp/pagp Etherchannel Trunking

If the move is to use LACP, then which method would one use?

channel-group 1 mode on

or

channel-group 1 mode active

-Gabriel

Hall of Fame Super Bronze

Re: lacp/pagp Etherchannel Trunking

channel-group 1 mode on

That's not LACP, that's unconditional trunking.

channel-group 1 mode active

This is LACP. The link partner can be active or passive

HTH,

__

Edison.

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