topic Re: A4H124 former stack ports not available in ExtremeSwitching (EOS)

A4H124 former stack ports not available

crodrigl — Fri, 25 Sep 2020 16:38:16 GMT

Hello,

I have recently replaced a SecureStack A4H124 stack member: removed a 24 port unit and replaced with a 48 port one (both were A4H124-xxP).

Now, ports 25 & 26 (which were the stack ports in the 24 port unit) are not available in the 48 port unit, and cannot find a way to “activate” them again.

¿Any idea of what to do to restore these ports to ethernet mode?

The stack is working fine otherwise, but having 2 missing ports in the middle of a switch is a bit error-prone.

Regards

Re: A4H124 former stack ports not available

SamPirok — Fri, 25 Sep 2020 22:37:54 GMT

Could you share the output of “show port status”? That should help troubleshoot this issue. If you’d rather share that with me directly, please feel free to email it to me at community@extremenetworks.com.

Re: A4H124 former stack ports not available

crodrigl — Fri, 25 Sep 2020 22:50:30 GMT

Sure, here it is:

DVSWA410(su)->show port status fe.3.24-27
          Alias        Oper    Admin   Speed
Port      (truncated)  Status  Status  (bps)     Duplex  Type
--------- ------------ ------- ------- --------- ------- ------------
fe.3.24                Down    Up      N/A       N/A     BaseT RJ45/PoE
fe.3.27                Up      Up      100.0M    full    BaseT RJ45/PoE

Ports 25-26 are missing… trying to show status of only these two ports results in an error:

DVSWA410(su)->show port status fe.3.25-26
Invalid Port in [port-string].

I can post the entire port list, but it is the same, just much longer

Re: A4H124 former stack ports not available

PeterK — Sun, 27 Sep 2020 16:29:41 GMT

It looks you only replaced the unit without removing (via command) the old unit first?

Re: A4H124 former stack ports not available

crodrigl — Mon, 28 Sep 2020 14:14:44 GMT

I didn’t issue any command to remove the old unit… just followed this simple procedure:

https://gtacknowledge.extremenetworks.com/articles/Q_A/How-do-I-replace-a-faulty-unit-or-management-Switch

What is the command? Is it ok to remove the unit and add it again?

Re: A4H124 former stack ports not available

PeterK — Mon, 28 Sep 2020 14:32:28 GMT

command: clear switch member <switch_ID>

As far as I remember right, it was always a bit difficult, to replace a Unit with a different port-number.

In worst case:

Backup Config
modify config using text-editor
clear complete config including stacking
rebuild stack
insert modified config

Re: A4H124 former stack ports not available

crodrigl — Mon, 28 Sep 2020 14:49:13 GMT

Thanks Peter…

I’m afraid its not the right time to break the entire stack, so maybe we leave these 2 ports as “unavailable”.

Anyway, if you think it may make any sense, I could remove that member (clear switch member...) and apply stack configuration file again. Yes, the stack will reset, but it seems safer taking into account all this is going to be done remotely.

Regards,

Carlos

Re: A4H124 former stack ports not available

SamPirok — Mon, 28 Sep 2020 20:26:22 GMT

Sorry for the delay getting back to you, looks like Peter already has you going in the right direction here. I’d suggest backing up the switch’s configuration via TFTP to a remote PC for safe keeping, powering down switch 3, then running the command “clear switch member 3” without the quotations, then power 3 back up and reload your configuration. Since you are doing this remotely, be sure your uplink isn’t switch 3. If it is, you’ll want to be local for this process.

Re: A4H124 former stack ports not available

crodrigl — Mon, 19 Oct 2020 19:33:40 GMT

Sorry too for the long delay, it has not been easy to find a suitable restart window…

Sam, your solution worked as expected, missing ports are again available.

Summarizing:

Save current configuration to manager file: “show config outfile configs/config.cfg”
Power-off affected unit.
Execute command “clear switch member 3”
Power on affected unit.
When it is re-attached to the stack, apply saved configuration: “configure configs/config.cfg”

Thank you both, Sam & Peter.