D-Link Forums
D-Link Enterprise => DES-1210-Series => Topic started by: Marty on May 03, 2018, 05:57:57 AM
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Hi, hoping someone might give me some guidance on setting up three DGS 1210s in a ring configuration using RSTP.
RSTP is enabled on all three switches.
4 vlans are setup on ports 1-24 and tagged on 27 and 28.
Asymmetric VLAN is disabled
The 3 switches are interconnected on ports 27 and 28 in a ring so each switch connects to the other two.
The root switch Bridge Priority is set to 16384 to assure root election.
All other settings are default.
Issue - After a week of running both ports 27 and 28 on the root switch will go into blocking mode and disable the connection to the other two switches. I could very well have missed something but my searches haven't turned up anything.
Thanks
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It should not be doing that unless there is a new root bridge..
What is the model name and firmware version for all 3 switches?
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DES-1210-28P
Firmware 4.12.016
Hardware Ver C2
All three are the same with the same configuration minus the priority setting.
Thanks,
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Looks like I put this in the wrong section. It should be in the DES not DGS. Mabye a mod can move it?
Thanks,
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Are you seeing any TX/RX errors on ports 27-28?
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We will attempt to replicate this issue and report back with results. If possible, please copy me the configuration file.
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Gattsu,
I haven't had a chance to turn RSTP back on since the switches are at a remote site and in production. The TX / RX under port statistics show 1 RX error out of 10s of thousands but I'm not certain if the log retains data after it was rebooted. I don't see a way to attach a file here in the post reply section. I'll see if I can message it.
Thanks,
Marty
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Okay, I'll private message you my email and a link to a beta firmware to test. The beta contains the latest fixes, I suggest updating to that and re-testing.
Where do you see the status "blocking"? From the GUI or CLI?
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So far with your configuration and network topology, we have not been able to replicate the issue.
If you have not already try updating the firmware to a beta code, which contains the latest fixes.
https://www.dropbox.com/s/luo5mzjo8cmr77m/DES-1210-28P-C2-4-12-B044%280509145949%29.zip?dl=0 (https://www.dropbox.com/s/luo5mzjo8cmr77m/DES-1210-28P-C2-4-12-B044%280509145949%29.zip?dl=0)