layer-3 etherchannel

[sarahr202]

Hi every body!

i have few questions:

Let me quot frok my book;

" If layer 3 switching is used on the etherchannel, the src-dst-ip method will always be used even though it is no configurable"

1) Can other methods such as src-mac,dst-mac etc be not used for layer-3 ethercjannel?

2)If only src-dst -ip can be used for layer 3 etherchannel, is it on by default or it can not be configured as the book says?

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3) channel-group 1 mode on/auto/desirable

If none specified what would be default i.e it would be auto or desirable?

thanks a lot!

[lejoe.thomas · Accepted solution]

Hi Sarah,

1) Can other methods such as src-mac,dst-mac etc be not used for layer-3 ethercjannel?

No, I know it supports the above for L2 etherchannel

2)If only src-dst -ip can be used for layer 3 etherchannel, is it on by default or it can not be configured as the book says?

On by default.

3) channel-group 1 mode on/auto/desirable

3550SW1(config-if)#channel-group 1 mode ?

active Enable LACP unconditionally

auto Enable PAgP only if a PAgP device is detected

desirable Enable PAgP unconditionally

on Enable Etherchannel only

passive Enable LACP only if a LACP device is detected

3550SW1(config-if)#channel-group 1 mode

% Incomplete command.

You must explicitly specify the mode.

HTH

Lejoe

[sarahr202]

Thanks Lejoe!