is there any way to pack more than 16 ports in an etherchannel on a stack of 2 3750s? i'm guessing the answer is no, but i figured i'd ask. this is running ip services 12.2(50)se2.

i have Gi1/0/2-10 and Gi2/0/1-7 in an etherchannel... i try to add Gi2/0/8-10 and it won't let me...

Quote :

" adenosinesw0(config)#int r Gi2/0/8-10 adenosinesw0(config-if-range)#channel-g 1 m ac Command rejected (Port-channel1, Gi2/0/8): Cannot configure interface for bundling % Range command terminated because it failed on GigabitEthernet2/0/8 "

which is obviously explained by

Quote :

" adenosinesw0#sh eth Channel-group listing: ---------------------- Group: 1 ---------- Group state = L2 Ports: 16 Maxports = 16 Port-channels: 1 Max Port-channels = 16 Protocol: LACP Minimum Links: 0 "

6/9/2009 10:28:42 PM

why in the world would you do such a thing?

6/9/2009 11:12:21 PM

because i don't have any 10gb fiber readily available near the rack these switches are in... i have plenty of copper, though.

this is for an iscsi target, so i figured why not go for a redundant 10gbps uplink to the core fabric

6/9/2009 11:17:22 PM

Probably so he could post a bunch of malarkey on TWW.

6/9/2009 11:17:43 PM

meh, never mind, i guess. i can live with 8gbps. i'll have the other 2gbps go to another vlan.

6/9/2009 11:28:08 PM

Quote :

"Probably so he could post a bunch of malarkey on TWW."

[Edited on June 9, 2009 at 11:36 PM. Reason : safari + beer = fail]

6/9/2009 11:36:10 PM

Quote :

"Probably so he could post a bunch of malarkey on TWW."

Indeed. If you could configure more, it'd be in the manual.

RTFM FTW.

6/10/2009 8:40:53 AM

^quite aware of what the manual says... and, in fact, my original post reflects this.

i just wanted to ask in the off chance there was something weird i could do in lieu of this. no malarkey - i'm not even sure what that would accomplish...

why do you have to be such a douche to everyone?

[Edited on June 10, 2009 at 10:26 AM. Reason : a simple "no" would have sufficed]

6/10/2009 10:16:52 AM

http://www.cisco.com/en/US/tech/tk389/tk213/technologies_tech_note09186a0080094646.shtml#topic6a

Catalyst 3750 series switches support both Layer 2 and Layer 3 EtherChannel, with up to eight compatibly configured Ethernet interfaces

The EtherChannel can be formed with interfaces on any switch and across switches within a single switch stack

The Catalyst 3750 series switches support a maximum of 12 EtherChannels with configuration on a stack if the switch runs Cisco IOS Software Release 12.1. The Catalyst 3750 series switches can support a maximum of 48 etherchannels on the switch stack if the switch runs Cisco IOS Software Release12.2 or later.

6/10/2009 10:56:54 AM

yeah, that's what i thought. 8 for each switch, so 16, which means i have to do 2 etherchannels.

6/10/2009 11:03:52 AM

Man, the first networking question in a long time and I miss out on the chance to reply

6/10/2009 10:11:35 PM

^you were actually the only person i was hoping would reply

6/10/2009 10:14:50 PM

Quote :

"why do you have to be such a douche to everyone?"

You're threatening his king of the networking hill leadership on the wolf web with all these god damn networking threads.

6/10/2009 10:24:25 PM

nah, he's not

6/10/2009 10:30:26 PM