Hi,
We have two C3750 in stack, with the two Ten0/1 uplinks connected to a core 6500.
These two Ten uplinks are channeled in a portchannel
relevant config below:
---
interface TenGigabitEthernet1/0/1 (2/0/1 = identical config)
description BE01NS31
switchport trunk encapsulation dot1q
switchport trunk native vlan 666
switchport trunk allowed vlan 10,102,103,145-148,199,205-207,214,215,220
switchport mode trunk
switchport nonegotiate
srr-queue bandwidth share 10 10 60 20
srr-queue bandwidth shape 10 0 0 0
queue-set 2
mls qos trust cos
auto qos voip trust
channel-group 5 mode active
!
interface Port-channel5
description BE01NS31
switchport trunk encapsulation dot1q
switchport trunk native vlan 666
switchport trunk allowed vlan 10,102,103,145-148,199,205-207,214,215,220
switchport mode trunk
switchport nonegotiate
---
For some reason, this morning both the interfaces went down:
Te1/0/1 BE01NS31 suspended trunk full 10G 10GBase-LR
When I shut/unshut one of the ph. interfaces, they both came back up, now everything is OK.
There are no configuration changes on the switch.
Does anybody know what might have happened?
Thanks!
