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New Member

Losing connectivity with etherchannel

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.

1 ACCEPTED SOLUTION

Accepted Solutions
New Member

I don't issue with the

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

10 REPLIES
New Member

Can explain "If I connect

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

New Member

sorry, its not esxi, it is

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.

Silver

I don't see portchannel

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

HTH, Dragan
New Member

Its not esxi server but IBM

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.

Silver

If I see correctly you are

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

 

HTH, Dragan
New Member

I did ... here is

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...

New Member

Your configuration seems to

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

New Member

Yes, you are correct.I

Yes, you are correct.

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

New Member

I don't issue with the

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

New Member

Thank you very much.I changed

Thank you very much.

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

 

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