Cisco 3750 Switch (stacking) Etherchannel Trunking with Foundary Switch

Unanswered Question
Jan 2nd, 2010


I would like to get some information about the Cisco 3750 Switch Etherchannel Trunking with Foundary Switch.

I got following documents about this configuration, if any body done this pls let help me to get configuratoin on the same.

These are the documents i found from the net about this configuration, if it's correct or if any body know how to do this integration please answer on my doubts.

Thanks in adavnce for answering my doubts....



I have this problem too.
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Giuseppe Larosa Sun, 01/03/2010 - 07:14

Hello Sunish,

LACP is standard based 802.3ad so it should be your best choice as described here:

if the C3750 is a stack you can form your bundle using ports taken from different switch members.

for trunking you need to use standard based 802.1Q

int gix/y


switchport trunk enc dot1q

switchport mode trunk

switchport trunk allowed vlan x,y,z


you need to prepare all the ports before then you can add

verify with sh etherchannel summary and use a free not used group number

int gix/y

channel-group k mode active

then you can activate all the ports using interface range if you want to make a bundle that also acts as a trunk.

in interface range you can give no sh

follow the above link for configuration on the foundry side

Hope to help


sheldonscott Sun, 01/03/2010 - 08:42

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