05-19-2019 08:27 AM
I am adding an SG300 to replace an aging 2950x and am having an issue getting tagged VLAN traffic to pass from the SG300(1) to the secondary SG300(2). I have configured port ge51 on both SG300s in trunk mode and allow tag multiple vlans. I also have configured port ge52 on the SG300(1), and port fe2/0/6 on the 2950 in the same way. SG300(1) and the 2950 have been happily passing traffic for months. However, even after a factory reset and reconfig on SG300(2) the only passed traffic is the default vlan. The SG300(2) is new and running firmware 1.0.4.88. This should be simple stuff, but I am at a loss.
05-19-2019 10:30 AM
Hello,
try and configure the trunk ports as 'General':
VLAN Management > Interface Settings > Interface VLAN Mode > General
and/or explicitly specify the native VLAN:
switchport trunk native vlan 1
05-19-2019 11:19 AM
05-19-2019 11:59 AM
Hello,
stupid question maybe, but do the VLANs you are trying to trunk actually exist on both SG300 switches ?
05-19-2019 12:02 PM
05-20-2019 12:53 AM
Hello,
just another thought: can you check if you have VTP enabled on the 2950 and the other SG300 by any chance ?
05-20-2019 07:25 AM
I can't check the 2950 without going on-site. I will check and get back to you. Thanks for the continued help.
01-11-2021 02:57 AM
I have the same problem. Have you resolved it?
01-11-2021 03:37 AM
Hello,
I assume you have tried all the options discussed in this thread ?
Either way, I would do a factory default reset on both switches. The default interface status of all ports is trunk. See if that resolves the issue.
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