BerryGardens
asked on
Netgear switches crash network
I have a Netgear GSM7312 and everytime I plug a Netgear JGS524 into a port the GSM switch stops working. I have three of these switches and it happens on all. Done all the basic checks so far...
I can see this error in the log when the network is down
6> Jan 6 19:52:05 0.0.0.0-1 UNKN[287491232]: dot1s_txrx.c(158) 70678 %% dot1sBpduReceive(): paddedBufHandle is L7_NULL
and this log when its up
<5> Jan 6 19:52:41 0.0.0.0-1 TRAPMGR[288835912]: traputil.c(663) 70679 %% Spanning Tree Topology Change: 0, Unit: 1
An help or advice?
I can see this error in the log when the network is down
6> Jan 6 19:52:05 0.0.0.0-1 UNKN[287491232]: dot1s_txrx.c(158) 70678 %% dot1sBpduReceive(): paddedBufHandle is L7_NULL
and this log when its up
<5> Jan 6 19:52:41 0.0.0.0-1 TRAPMGR[288835912]: traputil.c(663) 70679 %% Spanning Tree Topology Change: 0, Unit: 1
An help or advice?
First thing I'd think is STP halted both interfaces.. but I'd also think that if STP was being kicked there'd be a reference to 'Spanning tree" in each event.. not just the one.
ASKER
agreed. I have two other netgear l2 switches on other ports with no issues. I've compared detailed settings and both look identical. Very strange! I've plugged in an old netgear and that works on the same port. Seems to be only this model is the common factor which I can't believe.
Is there any config on the troublesome netgear to be cleared?
ASKER
No GUI on these switches. I even used one out of the box.
wow.. so teh GSM stops forwarding packets on all ports when you plug in the JG right? crossover cable or straight through?
ASKER
My thoughts exactly. Cable is straight through Cat5e.
ASKER
Sorry yes stops forwarding.
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
ASKER
I agree. Thanks for the help.