Hi
I have a little problem maybe someone can help me with:
I have two 2950 switches, one in one office one in another.
they are totally seperated.
I set the priority of one to 8000 so it always beomes the root. the other I set to 30000.
I have a copper link between the offices which uses mDSL modems from blackbox.co.uk these are ethernet bridge modules.
If I connect to switch 2 and set logging console and debug spantree events
and then I connect the copper I see BPDU from switch1 and switch 2 learns 1 is root. Alls well
As I needed a redundant link I have setup a wireless path using three 350 bridges. in same office as switch1 I have a unit setup as root ( with STP enabled )
at a bounce point I have one setup as a repeater
and at second office where switch 2 is I have the last unit set as client/non root.
this has been tested seperately and works fines, they all associate and pass traffic, pings etc. So acts as point to point link.
trouble comes when I link into my previous setup with the copper connected.
switch 2 sees wireless bridge 3 send its own BPDU saying that it is the switch,
but the wireless connection is supposed to be passing BPDU's from switch 1 over its links so that all switches learn of the root, and its not doing it so I am ending up with a loop.
the 350's have stp enabled on all ports and they all use vlan 1 ( default )
trouble is 350 does seem to be very helpful when comes to debugging, I cant work out how to see STP state or debug info.
anybody any ideas on what I can try
thanks
I have a little problem maybe someone can help me with:
I have two 2950 switches, one in one office one in another.
they are totally seperated.
I set the priority of one to 8000 so it always beomes the root. the other I set to 30000.
I have a copper link between the offices which uses mDSL modems from blackbox.co.uk these are ethernet bridge modules.
If I connect to switch 2 and set logging console and debug spantree events
and then I connect the copper I see BPDU from switch1 and switch 2 learns 1 is root. Alls well
As I needed a redundant link I have setup a wireless path using three 350 bridges. in same office as switch1 I have a unit setup as root ( with STP enabled )
at a bounce point I have one setup as a repeater
and at second office where switch 2 is I have the last unit set as client/non root.
this has been tested seperately and works fines, they all associate and pass traffic, pings etc. So acts as point to point link.
trouble comes when I link into my previous setup with the copper connected.
switch 2 sees wireless bridge 3 send its own BPDU saying that it is the switch,
but the wireless connection is supposed to be passing BPDU's from switch 1 over its links so that all switches learn of the root, and its not doing it so I am ending up with a loop.
the 350's have stp enabled on all ports and they all use vlan 1 ( default )
trouble is 350 does seem to be very helpful when comes to debugging, I cant work out how to see STP state or debug info.
anybody any ideas on what I can try
thanks
