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VLAN traffic between switches
We have three Netgear GS724T switches which have served well for some years. Model Name - GS724Tv4 Boot Version - B1.0.0.4 Software Version - 6.3.1.11 Now for the first time we need to impleme...
Hi snoworkin
I got the root cause for your problem.
It's due to wrong topology and configuration.
1. For inter-link cable between switches, you connect two cables between HLEWSW and HLEMSW, four cables between HLEMSW and HLWWSW, this will cause loop and STP protocol will blocking some ports traffic.
2. Suggest only connect one cable between switches if the Bandwidth is enough(if not, you can band two ports in LAG), then the inter-link port untag to VLAN1(by default) and tag to other VLANs(102, 254).
After do above two changes, it will work fine on your topology.
Could you please try again?
Hope it helps!
Regards,
EricZ
Hi EricZ
Thanks for helping.
I have emailed the three TechSupport files as requested.
Overnight thoughts . . . . . .
Firstly, I should have stated that traffic on the default VLAN (ID 1) is all working fine, with any device able to ping any device attached to that same VLAN on the other two switches.
Secondly, we have more than one link cable between the switches, the idea being to have one physical link cable per VLAN. Each port for a link cable is a tagged port, and a member of the relevant VLAN. I have no idea whether or not this is normal practise, rather than using link aggregation with multiple VLAN traffic on each cable, but I though I should mention it just in case it is contributing to our problem.
Thanks again for any help,
Ronnie
I have now emailed a pdf which should provide easy visualisation of our network topology with respect to the connections to these three switches.
Also, updated TechSupport dump files, having removed various "meddling" permutations as we tried to get this all working. The most recent files should reflect our understanding of how we think things should be set up according to NetGear documentation.
Hope this helps,
Ronnie
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