Losing connectivity with etherchannel

[mbujnak01]

Hello,

I have a problem with connecting two ESXI servers.

If I connect them by two single links across 4 switches, everything works fine. But if I add those interfaces into port-channel connectivity doesn't work.

Do you guys have any idea what could be a problem?

Thanks.

[davidsudjiman]

Can explain "If I connect them by two single links across 4 switches"?

What's the port-channel config on your switch and what's on your ESXI?

rdgs,

David Sudjiman

[mbujnak01]

sorry, its not esxi, it is blade server in chasis. Servers are connected via interfaces Gi1/0/3 and Gi2/0/3 in "blade chasis" switches. If they are not int port-channel everything works.

But when I put them into port-channel I loose connectivity.

Topology and configuration is in attachment.

Thank you.

[Dragan Ilic]

I don't see portchannel config on provided picture?

Have you followed:

http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1004048

BR,

Dragan

[mbujnak01]

Its not esxi server but IBM HS23 blade center server with Oracle Linux 6.5. (my mistake in original post)

Port-channel config is in the middle of the picture.

[Dragan Ilic]

If I see correctly you are doing LACP (802.3ad) bonding on linux...why don't you configure etherchannel on cisco as LACP (active) also and not static ON?

BR,

Dragan

[mbujnak01]

I did ... here is configuration

SW2#show run int gi1/0/3
!
interface GigabitEthernet1/0/3
 description Server2_HB1,2_prim
 switchport access vlan 405
 switchport mode access
 switchport nonegotiate
 spanning-tree portfast
 channel-protocol lacp
 channel-group 14 mode active
end

-----------------------------------------

SW2#show run int gi2/0/3

!

interface GigabitEthernet2/0/3
 description Server2_HB1,2_sec
 switchport access vlan 405
 switchport mode access
 switchport nonegotiate
 spanning-tree portfast
 channel-protocol lacp
 channel-group 14 mode active
end

-----------------------------------------

interface Port-channel14
 description Server2_HB1,2
 switchport access vlan 405
 switchport mode access
 switchport nonegotiate
 spanning-tree portfast

end

But its not the problem...

[davidsudjiman]

Your configuration seems to be OK for port-channel LACP. Am I correct to assume that you're not doing 802.1q trunking?

thx,

dsu

[mbujnak01]

Yes, you are correct.

I believe there is no need for trunk as I only need vlan 405 for those servers.

[davidsudjiman · Accepted solution]

I don't issue with the configuration. On your picture, bond1.405, it says that vlan=yes. Does this mean the packets are tagged?

If it does, then you need to trunk this port-channel too.

thx,

dsu

[mbujnak01]

Thank you very much.

I changed to VLAN=no  and it works fine now.