IP Hash Switch Configuration

[peterlyttle]

Hello,

We have configured our physical switch as follows for use with Route based on IP Hash.  However I have come across some information that says that LACP isnt support outside of the Nexus 1000?  Would someone be able to confirm this or post their config so I can see the differences?

I am seeing MAC flapping so asked a similar question on the Cisco forums.

https://supportforums.cisco.com/thread/2163884?tstart=0

port-channel load-balance src-dst-ip

interface Port-channel15

switchport trunk encapsulation dot1q

switchport mode trunk

!

interface GigabitEthernet1/0/15

switchport trunk encapsulation dot1q

switchport mode trunk

srr-queue bandwidth share 10 70 25 5

srr-queue bandwidth shape 10 0 0 0

priority-queue out

mls qos trust dscp

spanning-tree portfast

channel-protocol lacp

channel-group 15 mode active

!

interface GigabitEthernet1/0/16

switchport trunk encapsulation dot1q

switchport mode trunk

srr-queue bandwidth share 10 70 25 5

srr-queue bandwidth shape 10 0 0 0

priority-queue out

mls qos trust dscp

spanning-tree portfast

channel-protocol lacp

channel-group 15 mode active

Any help much appreciated!

Peter

[a_p_]

KB article http://kb.vmware.com/kb/1004048 shows the supported configuration for EtherChannel.

André

[rickardnobel · Accepted solution]

Lyttle Peter wrote:

However I have come across some information that says that LACP isnt support outside of the Nexus 1000?

That is correct, no LACP is supported on 5.0. The Etherchannel must be in pure manual mode, called "on", for this to work.

[peterlyttle]

Top guys, thanks for the fast reply.  I'll get this changed pronto!

[avarcher]

.

[peterlyttle]

I think I said both as I believe LACP is an implementation of 802.3ad (the other option was XOR, which was the one we wanted) -

http://www.cisco.com/en/US/docs/ios/12_2sb/feature/guide/gigeth.html

Since setting the mode to "on" rather than "active" and removing the "channel-protocol lacp" the MAC flapping has stopped.