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Link aggregating

(this is for ports 17-18 config in group 1)

switch(config)#int fa0/17

switch(config-if)#switchport mode access

switch(config-if)#switchport access vlan 1

switch(config-if)#channel-group 1 mode active

switch(config)#port-channel load-balance src-mac

(this is for ports 19-20 in group 2)

switch(config)#int fa0/19

switch(config-if)#switchport mode access

switch(config-if)#switchport access vlan 1

switch(config-if)#channel-group 2 mode active

switch(config)#port-channel load-balance src-ma

Im trying to configure my ports in catalyst switch 2950. Port 17-18 belong to group 1 and ports 19-20 belongs to group 2.

My concern is, if my configuration is enough in configuring my lacp.

2 REPLIES
Purple

Re: Link aggregating

Looks good to me , You have to make sure the far end looks exactly the same except the load balance doesn't have to be the same if you don't want it to . The channel groups don't have to match either though I think it is better if you do just from a troubleshotting perspective , also put in your description field on each port where the other end is going for ease of troubleshooting.

Re: Link aggregating

Hi,

Please don't forget to shutdown the interfaces before configuring the etherchannel (or they'll enter err-disable - when it is configured only on one side (misconfig) it will be err-disabled to prevent any spanning tree loops) - shutdown only one side until doing the configuration on both sides does the trick.

BR,

Mohammed Mahmoud.

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