Solved: 3750 Bond to Ports?

bleucube · ‎02-14-2007

I would like to bond/team 2 ports on my 3750. This is what I current have:

interface Gigabitethernet4/0/21

description "Team Member 1"

Switchport mode access

no ip address

no mdix auto

channel-group 9 mode active

spanning-tree portfast

interface Gigabitethernet4/0/22

description "Team Member 2"

Switchport mode access

no ip address

no mdix auto

channel-group 9 mode active

spanning-tree portfast

Not working tho... any help appreciated. Thanks!

dahuja · ‎02-14-2007

Hi

Send these outputs to dahuja@cisco.com

"show etherchannel summary"

"show tech-support

What make of NIC are you using on the server

Once I receive the output would be able to analyze the issue and come down to a resolution

Regards

Deepak Ahuja

Cisco TAC

View solution in original post

bjw · ‎02-14-2007

It appears as though you're configuring Etherchannel.

Is the 2nd switch, connected to interfaces Gi4/0/21 and Gi4/0/22, configured the same?

3750 Etherchannel ref doc:

http://www.cisco.com/en/US/products/hw/switches/ps5023/products_configuration_guide_chapter09186a00801cdea1.html

bleucube · ‎02-14-2007

Actually - I have two gig network cards in my backup server that are teamed - and looking to get two ports on the same switch teamed. Just need more bandwidth for my backup agents to use.

Etherchannel does this correct?

cisconoobie · ‎02-14-2007

int g4/0/21

switchport trunk encap dot1q

switchport trunk allowed vlan xx

switchport mode trunk

Channel-protocol lacp

channel-group 9 mode active

no spanning-tree portfast

int g4/0/22

switchport trunk encap dot1q

switchport trunk allowed vlan xx

switchport mode trunk

Channel-protocol lacp

channel-group 9 mode active

no spanning-tree portfast

Vlan xx is the vlan that your server is in.

bleucube · ‎02-14-2007

Will give it a whirl. The main switch in on the same network as the server, so don't need a Vlan.

Curious about the addition of:

Switchport trunk encap dot1q

and turning off spanning-tree portfast

Are these recommend settings?

bjw · ‎02-14-2007

Those are trunk settings, for trunking vlans across switches/routers.

Not sure if the server NIC teaming process is going to work like you need.

I as understand teaming, 1 virtual IP address = 1 virtual MAc address, across 2 physical NIC connections.

AFAIK this is not a throughput enhancement. You may want to read up on the Server NIC teaming and see how they recommend setting it up.

Etherchannel is a L2 switch to L2 switch function.

bleucube · ‎02-14-2007

Makes more sense to me. Ah. Yep this is just two network ports coming out out of my backup server going into 1 switch.

Doesn't sound like I can do it through etherchannel then. Thanks!

bleucube · ‎02-14-2007

Added the config and could not ping the server. Changed switchport mode trunk back to switchport mode access and could ping but port still show as 1 gig.

khansen · ‎02-14-2007

Hi,

Do you have a Port Channel interface setup?

Take a look at the following link example.

http://www.cisco.com/en/US/tech/tk389/tk213/technologies_configuration_example09186a0080094647.shtml#configs

bleucube · ‎02-14-2007

No I don't have a port channel interface setup.

cisconoobie · ‎02-14-2007

channel-group 9 mode active

this automatically creates a port channel group 9 for LACP

bjw · ‎02-14-2007

I did a little researching. There are several NIC teaming methods, redundancy, load balancing, throughput aggregation.

For the basic port channel to work with a non-PagP/LaCP host, you'll need to change:

channel-group 9 mode active

to

channel-group 9 mode on

on both ports.

Try that, and here's a few refs I stumbled upon.

http://support.citrix.com/article/CTX434260

http://www.velocityreviews.com/forums/t162986-nic-teaming-cisco-6k.html

bleucube · ‎02-15-2007

no good - even tho mode on is an option in the list, it does not accept it. Do I need to create the channel first?

dahuja · ‎02-14-2007

Hi

Send these outputs to dahuja@cisco.com

"show etherchannel summary"

"show tech-support

What make of NIC are you using on the server

Once I receive the output would be able to analyze the issue and come down to a resolution

Regards

Deepak Ahuja

Cisco TAC

bleucube · ‎02-15-2007

Sent Email - Thanks!!