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ASA 5520 - moving inside port to 1gb SFP port

Hello,

We have an ASA 5520 and it's inside interface is currently plugged into a fast ethernet port on a 3750.  I have just bought a 1gig SFP module and have copied the fast ethernet port config to the gigabit port, but the port seems to be flapping, can you thik of any reason why it might be doign this?

The port conf gi is this:

interface GigabitEthernet1/0/4

description Link to Inside ASA

switchport access vlan 2

switchport trunk encapsulation dot1q

Thanks

1 REPLY

ASA 5520 - moving inside port to 1gb SFP port

try removing the trunk config and make it as switchport mode access...

also make the port config as speed 1000 and duplex auto in switch end

In ASA end make it as speed 1000 and duplex full. The check if still the flapping happens....

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