09-07-2016 05:52 AM - edited 03-08-2019 07:19 AM
Hi,
While upgrading the IOS of a Cisco WS-C6506-E from version 122-33.SXH4 to 122-33.SXJ10. I encountered the following issue:
Ports 2/8 and 2/42 are configured in a port-channel which is connected to a cisco WS-CBS3012-IBM-I.
The configuration of these ports before upgrading was:
interface GigabitEthernet2/8
switchport
switchport trunk encapsulation dot1q
switchport trunk native vlan 20
switchport trunk allowed vlan 1,20,68,69,80-85,90,91,101,102,150,151,199
switchport mode trunk
storm-control broadcast level 5.00
channel-group 12 mode on
interface GigabitEthernet2/42
switchport
switchport trunk encapsulation dot1q
switchport trunk native vlan 20
switchport trunk allowed vlan 1,20,68,69,80-85,90,91,101,102,150,151,199
switchport mode trunk
storm-control broadcast level 5.00
channel-group 12 mode on
interface Port-channel12
switchport
switchport trunk encapsulation dot1q
switchport trunk native vlan 20
switchport trunk allowed vlan 1,20,68,69,80-85,90,91,101,102,150,151,199
switchport mode trunk
spanning-tree vlan 1,20,68-69,80,82,84-85,90,199,222 port-priority 16
However, after reloading the switch to upgrade the IOS, the ports weren't added to Port-channel12. There was an error saying: storm control config doesn't match. Nothing had been changed in the WS-CBS3012-IBM-I. The problem was solved deleting the storm-control command. I don't understand the reason of this problem with the command storm control.
The configuration of the WS-CBS3012-IBM-I was the same before and after upgrading the IOS of the WS-C6506-E:
interface GigabitEthernet0/15
switchport trunk native vlan 20
switchport trunk allowed vlan 1,20,68,69,80-85,90,91,101,102,150,151,199
switchport mode trunk
channel-group 12 mode on
interface GigabitEthernet0/16
switchport trunk native vlan 20
switchport trunk allowed vlan 1,20,68,69,80-85,90,91,101,102,150,151,199
switchport mode trunk
channel-group 12 mode on
interface Port-channel12
switchport trunk native vlan 20
switchport trunk allowed vlan 1,20,68,69,80-85,90,91,101,102,150,151,199
switchport mode trunk
link state group 1 upstream
spanning-tree vlan 1,20,68-69,80-85,90,199,222 port-priority 16
end
Any ideas why this happened?
Thanks in advance.
09-07-2016 01:06 PM
Hi,
Have you tried applying the storm control config to the Portchannel (not the physical interfaces)?
interface GigabitEthernet2/8
switchport
switchport trunk encapsulation dot1q
switchport trunk native vlan 20
switchport trunk allowed vlan 1,20,68,69,80-85,90,91,101,102,150,151,199
switchport mode trunk
channel-group 12 mode on
interface GigabitEthernet2/42
switchport
switchport trunk encapsulation dot1q
switchport trunk native vlan 20
switchport trunk allowed vlan 1,20,68,69,80-85,90,91,101,102,150,151,199
switchport mode trunk
channel-group 12 mode on
interface Port-channel12
switchport
switchport trunk encapsulation dot1q
switchport trunk native vlan 20
switchport trunk allowed vlan 1,20,68,69,80-85,90,91,101,102,150,151,199
switchport mode trunk
spanning-tree vlan 1,20,68-69,80,82,84-85,90,199,222 port-priority 16
storm-control broadcast level 5.00
HTH
09-08-2016 11:40 PM
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