civic00typer
Gawd
- Joined
- Dec 5, 2003
- Messages
- 517
A little background on my infrastructure: I have 3 VMware ESX Servers, each with a 2 channel port group setup as a trunk on a 2-member 3570G stack. There is a VTP server upstream on a core switch, however we allow only a certain number of VLANs through the upstream trunk to the core switches, 300-305. VMware is setup with 6 different networks with VLAN tags. The management interface on each server is setup on a private IP address range... all hosts are connected to one of the two switches in the stack.
Now the problem: When I drop the port channel connect to the upstream core switches, it appears to affect communication within my VMware cluster. The hosts are unable to communication with each other, even though they are on the same subnet. I tried dropping the management VLAN from the trunk to the core, and still had the same results. The HA component was failing, as it could not communicate with other hosts on the same subnet (which are plugged into the same switch stack).
Question: How could the change of an upstream trunk to the core switch affect my port channels? I would expect communication between the hosts to remain online... as they are on the same subnet and do not need to leave the switch stack to communicate between hosts. Suggestions?
Now the problem: When I drop the port channel connect to the upstream core switches, it appears to affect communication within my VMware cluster. The hosts are unable to communication with each other, even though they are on the same subnet. I tried dropping the management VLAN from the trunk to the core, and still had the same results. The HA component was failing, as it could not communicate with other hosts on the same subnet (which are plugged into the same switch stack).
Question: How could the change of an upstream trunk to the core switch affect my port channels? I would expect communication between the hosts to remain online... as they are on the same subnet and do not need to leave the switch stack to communicate between hosts. Suggestions?