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Enable storm control in etherchannel

ivanka_busta
Level 1
Level 1

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.

2 Replies 2

Reza Sharifi
Hall of Fame
Hall of Fame

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

Thanks for the suggestion. I'll give it a try.
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