02-09-2009 07:46 PM - edited 03-06-2019 03:57 AM
Not so much a problem but a question.
I'd like to create multiple ether channels spanning across two module blades - 4 interfaces per blade to a single server (8 interfaces in total), how would you recommend this be configured? If one blade goes down, will the etherchannel break/shutdown or can we setup some kind of redundancy between the 2 blades?
Thanks for your help
Cisco IOS Software, Catalyst 4000 L3 Switch Software (cat4000-I9S-M), Version 12.2(25)EWA10, RELEASE SOFTWARE (fc1)
02-09-2009 08:10 PM
To make it permanently on
Interface range Gi0/1 - 4
Channel-group 1 mode on
Or
To make it use LACP
Interface range Gi0/1 - 4
Channel-group 1 mode active
Channel protocol lacp (technically speaking this line is not needed because the switch knows you are using LACP with the previous command)
To make it use PAGP
Interface range Gi0/1 - 4
Channel-group 1 mode desirable
Channel protocol PAGP (technically speaking this line is not needed because the switch knows you are using PAGP with the previous command)
Now on opposite ends
To make it permanently on
Interface range Gi0/1 - 4
Channel-group 1 mode on
Or
To make it use LACP
Interface range Gi0/1 - 4
Channel-group 1 mode passive
Channel protocol lacp (technically speaking this line is not needed because the switch knows you are using LACP with the previous command)
To make it use PAGP
Interface range Gi0/1 - 4
Channel-group 1 mode on
Channel protocol PAGP (technically speaking this line is not needed because the switch knows you are using PAGP with the previous command)
Rules:
The ports must have the same configurations. ie if they are trunks which in this case I recommend since you want to carry traffic between both. Same duplex, speed or just native port configuration mode.
Pls rate if it helps.
02-09-2009 08:11 PM
You can do etherchannel across linecards in a 4500. so even if one of the cards fail, the ether channle would still be up providing redundancy
http://www.cisco.com/en/US/tech/tk389/tk213/technologies_configuration_example09186a008089a821.shtml
Narayan
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