Solved

Netgear switches crash network

Posted on 2013-02-05
9
730 Views
Last Modified: 2013-02-05
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?
0
Comment
Question by:BerryGardens
  • 5
  • 4
9 Comments
 
LVL 14

Expert Comment

by:Ben Hart
ID: 38855705
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.
0
 

Author Comment

by:BerryGardens
ID: 38855829
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.
0
 
LVL 14

Expert Comment

by:Ben Hart
ID: 38856049
Is there any config on the troublesome netgear to be cleared?
0
 

Author Comment

by:BerryGardens
ID: 38856065
No GUI on these switches. I even used one out of the box.
0
How your wiki can always stay up-to-date

Quip doubles as a “living” wiki and a project management tool that evolves with your organization. As you finish projects in Quip, the work remains, easily accessible to all team members, new and old.
- Increase transparency
- Onboard new hires faster
- Access from mobile/offline

 
LVL 14

Expert Comment

by:Ben Hart
ID: 38856164
wow.. so teh GSM stops forwarding packets on all ports when you plug in the JG right?  crossover cable or straight through?
0
 

Author Comment

by:BerryGardens
ID: 38856331
My thoughts exactly. Cable is straight through Cat5e.
0
 

Author Comment

by:BerryGardens
ID: 38856338
Sorry yes stops forwarding.
0
 
LVL 14

Accepted Solution

by:
Ben Hart earned 500 total points
ID: 38856814
well.. I'm starting to lean towards maybe just a flaky switch then.
0
 

Author Closing Comment

by:BerryGardens
ID: 38856978
I agree. Thanks for the help.
0

Featured Post

Scale it in WD Gold

With up to ten times the workload capacity of desktop drives, WD Gold hard drives employ advanced technology to deliver among the best in reliability, capacity, power efficiency and performance.

Join & Write a Comment

Suggested Solutions

Join Greg Farro and Ethan Banks from Packet Pushers (http://packetpushers.net/podcast/podcasts/pq-show-93-smart-network-monitoring-paessler-sponsored/) and Greg Ross from Paessler (https://www.paessler.com/prtg) for a discussion about smart network …
Use of TCL script on Cisco devices:  - create file and merge it with running configuration to apply configuration changes
Get a first impression of how PRTG looks and learn how it works.   This video is a short introduction to PRTG, as an initial overview or as a quick start for new PRTG users.
This video gives you a great overview about bandwidth monitoring with SNMP and WMI with our network monitoring solution PRTG Network Monitor (https://www.paessler.com/prtg). If you're looking for how to monitor bandwidth using netflow or packet s…

757 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

20 Experts available now in Live!

Get 1:1 Help Now