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Webcast-Catalyst9k
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LACP Between 3750 and 6500

Having LACP etherchannel issue between a IOS 6513 and a 3750. Any suggestions would be great..

Normal configuration causes the 6500 to shut the uplinks down,

We keep getting , Channel protocol mismatch errors

2 REPLIES
Hall of Fame Super Blue

Re: LACP Between 3750 and 6500

MurphyMd wrote:

Having LACP etherchannel issue between a IOS 6513 and a 3750. Any suggestions would be great..

Normal configuration causes the 6500 to shut the uplinks down,

We keep getting , Channel protocol mismatch errors

Mike

Is there a specific reason you want to use LACP as oppose to PagP ? Have you tried it with PagP ?

Can you post etherchannel configs for both switches + "sh etherchannel"

Jon

Purple

Re: LACP Between 3750 and 6500

No reason it shouldn't work .   Shutdown the ports you want to aggregate then do the fol

lowing .  On the ports add the following.  The switches like to see all the ports in a group come up at the same time , if this is not done you can sometimes get unpredictable results...  Also all ports on both sides must be the same speed and duplex to form a channel. Best left at auto between cisco devices...

int gx/x/x

channel-group X mode active

int port channel X

no shut

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