12-07-2010 03:12 PM - edited 07-03-2021 07:31 PM
Hi we have a 5508 series controller, we're using port 1 and 2 with LAG enabled. If I unplug the cable from port 2 anything that relies on DNS starts failing, I'm able to ping based on IP address just not by name. when it's plugged back in it's fine. What could be wrong with our configuration?
Thanks
Ben
12-07-2010 10:41 PM
Hi ben,
can you post the switch ports config ? Are the ports on the same switch ?
Nicolas
12-08-2010 04:34 PM
Yes the ports are on the same switch, it looks to be a bug, I've got a TAC case open and they've provided me with a new controller image to try.
The ports are configured as follows.
interface GigabitEthernet4/0/31 and 33
switchport trunk encapsulation dot1q
switchport trunk native vlan 2
switchport trunk allowed vlan 2,5,8,12,16 switchport mode trunk mls qos trust cos channel-group 5 mode on
interface Port-channel5
switchport trunk encapsulation dot1q
switchport trunk native vlan 2
switchport trunk allowed vlan 2,5,8,12,16 switchport mode trunk
Ben
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