etherchannel to CSS 11506

[kejeusa]

i'm looking at doing a etherchannel/channel group to CSS 11506 for greater bandwidth on the front of the CSS.. clinets>chan-group>vip>CSS >servers.

has anyone else done this?

reason i ask if this can be done is that the backup (ASR) CSS vir-peer shows as master(backup router) state. i didn't see any commands on css for etherchan, pagp or lacp

[jfoerster]

HI,

etherchannel is not supported on the CSS from my knowledge. Furthermore you should avoide any spanningtree issue on the CSS. If you need more throughput than 1 GIG think about splitting the VIPs so that one CSS is active for the first half of the VIPS and the otherone for the 2nd part. Be aware that the Gateway on both VIP-pars need to be active on the correct box.

Kind Regards,

Joerg

[kejeusa]

this sounds like an active/active setup this is going against the master/backup config i'm trying to accomplish. spanning-tree has already been delt with b/c i turned it off due to another issue that the css bpdu created on another network.

thx for the input :-)

[jfoerster]

well,

yes you are right. it's sort of an active/active setup and if you need more throughput than 1 GIG this is the only solution except using more than 2 CSSes or two CSMs ;-)