08-11-2014 06:04 AM - edited 03-10-2019 12:27 PM
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.
Solved! Go to Solution.
08-11-2014 10:37 PM
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
08-11-2014 06:09 AM
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
08-11-2014 06:29 AM
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.
08-11-2014 06:37 AM
I don't see portchannel config on provided picture?
Have you followed:
BR,
Dragan
08-11-2014 07:44 AM
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.
08-11-2014 07:50 AM
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
08-11-2014 08:52 AM
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...
08-11-2014 04:32 PM
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
08-11-2014 10:29 PM
Yes, you are correct.
I believe there is no need for trunk as I only need vlan 405 for those servers.
08-11-2014 10:37 PM
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
08-12-2014 01:10 AM
Thank you very much.
I changed to VLAN=no and it works fine now.
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: