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New Member

cat3550-EMI Fallback Bridging problem

I have the following problem regarding a fallback bridging deployment:

I already configured the switch to support fallback bridging as follows:

interface vlan 2

ip address 122.4.2.1 255.255.255.0

bridge-group 1

interface vlan 3

ip address 122.4.3.8 255.255.255.0

bridge-group 1

bridge 1 protocol vlan-bridge

I have correctly assigned vlans to switched ports, the following is happening:

when I first configure bridging on the switch my users on vlan 2 cannot access a server on vlan 3 (netbeui protocol), after reloading the switch without making any changes on the user computer or the server the user is able to access the server and all the services needed, but if the user reboots the computer when it tries to log again in the system is unable to find the server and services.

It seems to be that fallback bridging is only working once after reloading the switch.

How can I correct this issue??

Need help!

4 REPLIES
Cisco Employee

Re: cat3550-EMI Fallback Bridging problem

There is a bug open for similar issue which will be fixed in 12.1(14)EA1 whioch is tentatively expected by the end of this month

http://www.cisco.com/cgi-bin/bugtool/onebug.pl?bugid=CSCeb18350

New Member

Re: cat3550-EMI Fallback Bridging problem

Do you know if this bug is present on versions 12.1(11) or 12.1(12)???

Many thanks,

Cisco Employee

Re: cat3550-EMI Fallback Bridging problem

Yes. I beilieve so. It is present in all IOS available today

New Member

Re: cat3550-EMI Fallback Bridging problem

A customer is experiencing a similar issue with IPX, on a 3550-EMI running 12.1(13)EA1a. Removing and re-applying the bridge-group seems to fix the problem for a few days. Might be enough to help you until the fix comes out.

JF

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