STP Error Messages

Hi, please does anyone understand what these error messages mean?

30-Aug-2011 22:08:47 %STP-W-PORTSTATUS: gi19: STP status Forwarding
30-Aug-2011 22:08:47 %LINK-I-Up:  gi19

VESLSW2#30-Aug-2011 22:08:48 %LINK-W-Down:  gi21

VESLSW2#30-Aug-2011 22:08:49 %LINK-I-Up:  gi22
30-Aug-2011 22:08:49 %STP-W-PORTSTATUS: gi11: STP status Forwarding

VESLSW2#30-Aug-2011 22:08:49 %LINK-W-Down:  gi24

VESLSW2#
VESLSW2#30-Aug-2011 22:08:50 %LINK-I-Up:  gi21

VESLSW2#
VESLSW2#30-Aug-2011 22:08:51 %STP-W-PORTSTATUS: gi18: STP status Forwarding
30-Aug-2011 22:08:51 %STP-W-PORTSTATUS: gi24: STP status Forwarding
30-Aug-2011 22:08:51 %LINK-I-Up:  gi24
30-Aug-2011 22:08:51 %LINK-W-Down:  gi19

VESLSW2#
VESLSW2#30-Aug-2011 22:08:52 %LINK-W-Down:  gi11


VESLSW2#30-Aug-2011 22:08:53 %STP-W-PORTSTATUS: gi19: STP status Forwarding
30-Aug-2011 22:08:53 %LINK-I-Up:  gi19
VESLSW2#
VESLSW2#30-Aug-2011 22:08:53 %STP-W-PORTSTATUS: gi22: STP status Forwarding

30-Aug-2011 22:08:54 %LINK-W-Down:  gi23
VESLSW2#
VESLSW2#
30-Aug-2011 22:08:54 %LINK-W-Down:  gi18
VESLSW2#30-Aug-2011 22:08:55 %STP-W-PORTSTATUS: gi21: STP status Forwarding
fac30-Aug-2011 22:08:55 %LINK-I-Up:  gi23
30-Aug-2011 22:08:55 %STP-W-PORTSTATUS: gi11: STP status Forwarding
30-Aug-2011 22:08:55 %LINK-I-Up:  gi11
tory rese30-Aug-2011 22:08:57 %STP-W-PORTSTATUS: gi18: STP status Forwarding
30-Aug-2011 22:08:57 %LINK-I-Up:  gi18
t
% Unrecognized command
VESLSW2#30-Aug-2011 22:08:59 %LINK-W-Down:  gi22
30-Aug-2011 22:08:59 %LINK-W-Down:  gi11
30-Aug-2011 22:09:00 %STP-W-PORTSTATUS: gi23: STP status Forwarding
30-Aug-2011 22:09:01 %LINK-I-Up:  gi22
30-Aug-2011 22:09:01 %LINK-I-Up:  gi11, aggregated (1)
30-Aug-2011 22:09:01 %LINK-W-Down:  gi18
30-Aug-2011 22:09:01 %LINK-W-Down:  gi24
30-Aug-2011 22:09:03 %LINK-I-Up:  gi18, aggregated (1)
30-Aug-2011 22:09:03 %LINK-I-Up:  gi24
30-Aug-2011 22:09:03 %LINK-W-Down:  gi21
30-Aug-2011 22:09:03 %LINK-W-Down:  gi19
30-Aug-2011 22:09:05 %LINK-I-Up:  gi19
30-Aug-2011 22:09:05 %STP-W-PORTSTATUS: gi22: STP status Forwarding
30-Aug-2011 22:09:05 %LINK-W-Down:  gi23
30-Aug-2011 22:09:05 %STP-W-PORTSTATUS: gi11: STP status Forwarding
30-Aug-2011 22:09:06 %STP-W-PORTSTATUS: gi21: STP status Forwarding
30-Aug-2011 22:09:06 %LINK-I-Up:  gi21
30-Aug-2011 22:09:07 %STP-W-PORTSTATUS: gi18: STP status Forwarding
30-Aug-2011 22:09:07 %STP-W-PORTSTATUS: gi24: STP status Forwarding
30-Aug-2011 22:09:08 %STP-W-PORTSTATUS: gi23: STP status Forwarding
30-Aug-2011 22:09:08 %LINK-I-Up:  gi23
30-Aug-2011 22:09:09 %LINK-W-Down:  gi22
30-Aug-2011 22:09:10 %STP-W-PORTSTATUS: gi19: STP status Forwarding
30-Aug-2011 22:09:10 %LINK-W-Down:  gi11
30-Aug-2011 22:09:10 %LINK-W-Down:  gi21
30-Aug-2011 22:09:11 %LINK-W-Down:  gi24
30-Aug-2011 22:09:12 %LINK-I-Up:  gi21, aggregated (1)
30-Aug-2011 22:09:12 %LINK-W-Down:  gi23
30-Aug-2011 22:09:12 %STP-W-PORTSTATUS: gi22: STP status Forwarding
30-Aug-2011 22:09:12 %LINK-I-Up:  gi22
30-Aug-2011 22:09:12 %LINK-W-Down:  gi18
30-Aug-2011 22:09:13 %LINK-W-Down:  gi19
30-Aug-2011 22:09:14 %STP-W-PORTSTATUS: gi23: STP status Forwarding
30-Aug-2011 22:09:14 %LINK-I-Up:  gi23
30-Aug-2011 22:09:14 %STP-W-PORTSTATUS: gi24: STP status Forwarding
30-Aug-2011 22:09:14 %LINK-I-Up:  gi24
30-Aug-2011 22:09:14 %LINK-I-Up:  gi18
30-Aug-2011 22:09:16 %LINK-W-Down:  gi22
30-Aug-2011 22:09:16 %STP-W-PORTSTATUS: gi19: STP status Forwarding
30-Aug-2011 22:09:16 %LINK-I-Up:  gi19
30-Aug-2011 22:09:16 %STP-W-PORTSTATUS: gi21: STP status Forwarding
30-Aug-2011 22:09:18 %LINK-I-Up:  gi22
30-Aug-2011 22:09:18 %LINK-W-Down:  gi24
30-Aug-2011 22:09:19 %STP-W-PORTSTATUS: gi18: STP status Forwarding
30-Aug-2011 22:09:20 %STP-W-PORTSTATUS: gi24: STP status Forwarding, aggregated (1)
30-Aug-2011 22:09:20 %LINK-I-Up:  gi24, aggregated (1)
30-Aug-2011 22:09:20 %LINK-W-Down:  gi19
30-Aug-2011 22:09:21 %LINK-W-Down:  gi21
30-Aug-2011 22:09:22 %LINK-I-Up:  gi19, aggregated (1)
30-Aug-2011 22:09:22 %LINK-W-Down:  gi18
30-Aug-2011 22:09:22 %STP-W-PORTSTATUS: gi22: STP status Forwarding
30-Aug-2011 22:09:23 %LINK-I-Up:  gi21
30-Aug-2011 22:09:24 %LINK-W-Down:  gi23
30-Aug-2011 22:09:25 %LINK-I-Up:  gi18
30-Aug-2011 22:09:26 %LINK-I-Up:  gi23
30-Aug-2011 22:09:26 %STP-W-PORTSTATUS: gi19: STP status Forwarding
30-Aug-2011 22:09:27 %STP-W-PORTSTATUS: gi21: STP status Forwarding
30-Aug-2011 22:09:28 %LINK-W-Down:  gi22

VESLSW2#30-Aug-2011 22:09:29 %LINK-W-Down:  gi18, aggregated (1)
30-Aug-2011 22:09:29 %STP-W-PORTSTATUS: gi23: STP status Forwarding
30-Aug-2011 22:09:30 %LINK-I-Up:  gi22
30-Aug-2011 22:09:30 %LINK-W-Down:  gi24
30-Aug-2011 22:09:31 %LINK-I-Up:  gi18, aggregated (1)
30-Aug-2011 22:09:31 %LINK-W-Down:  gi21
30-Aug-2011 22:09:31 %LINK-I-Up:  gi24
30-Aug-2011 22:09:32 %LINK-W-Down:  gi19
30-Aug-2011 22:09:32 %LINK-W-Down:  gi23
30-Aug-2011 22:09:34 %LINK-I-Up:  gi19
30-Aug-2011 22:09:34 %STP-W-PORTSTATUS: gi21: STP status Forwarding
30-Aug-2011 22:09:34 %LINK-I-Up:  gi21
30-Aug-2011 22:09:34 %STP-W-PORTSTATUS: gi22: STP status Forwarding
30-Aug-2011 22:09:35 %STP-W-PORTSTATUS: gi18: STP status Forwarding
30-Aug-2011 22:09:36 %STP-W-PORTSTATUS: gi23: STP status Forwarding
30-Aug-2011 22:09:36 %LINK-I-Up:  gi23
30-Aug-2011 22:09:36 %STP-W-PORTSTATUS: gi24: STP status Forwarding
30-Aug-2011 22:09:38 %LINK-W-Down:  gi21
30-Aug-2011 22:09:38 %STP-W-PORTSTATUS: gi19: STP status Forwarding
30-Aug-2011 22:09:39 %LINK-W-Down:  gi23
30-Aug-2011 22:09:39 %LINK-W-Down:  gi7
30-Aug-2011 22:09:39 %STP-W-PORTSTATUS: gi21: STP status Forwarding
30-Aug-2011 22:09:40 %LINK-I-Up:  gi21
30-Aug-2011 22:09:40 %LINK-W-Down:  gi18
30-Aug-2011 22:09:41 %STP-W-PORTSTATUS: gi23: STP status Forwarding, aggregated (1)
30-Aug-2011 22:09:41 %LINK-I-Up:  gi23, aggregated (1)
30-Aug-2011 22:09:42 %LINK-I-Up:  gi18
30-Aug-2011 22:09:42 %LINK-I-Up:  gi7
30-Aug-2011 22:09:46 %LINK-W-Down:  gi7, aggregated (1)
30-Aug-2011 22:09:46 %STP-W-PORTSTATUS: gi18: STP status Forwarding
30-Aug-2011 22:09:48 %LINK-I-Up:  gi7, aggregated (1)
30-Aug-2011 22:09:49 %LINK-W-Down:  gi21
30-Aug-2011 22:09:51 %LINK-I-Up:  gi21, aggregated (1)
30-Aug-2011 22:09:51 %LINK-W-Down:  gi23
30-Aug-2011 22:09:53 %STP-W-PORTSTATUS: gi7: STP status Forwarding

VESLSW2#30-Aug-2011 22:09:53 %LINK-I-Up:  gi23, aggregated (1)
30-Aug-2011 22:09:55 %STP-W-PORTSTATUS: gi21: STP status Forwarding
30-Aug-2011 22:09:58 %STP-W-PORTSTATUS: gi23: STP status Forwarding

VESLSW2#fact30-Aug-2011 22:09:58 %LINK-W-Down:  gi7, aggregated (1)
30-Aug-2011 22:10:00 %STP-W-PORTSTATUS: gi7: STP status Forwarding, aggregated (1)
30-Aug-2011 22:10:00 %LINK-I-Up:  gi7, aggregated (1)
30-Aug-2011 22:10:04 %LINK-W-Down:  gi21, aggregated (1)
30-Aug-2011 22:10:07 %STP-W-PORTSTATUS: gi21: STP status Forwarding, aggregated (1)
30-Aug-2011 22:10:07 %LINK-I-Up:  gi21, aggregated (1)
30-Aug-2011 22:10:08 %LINK-W-Down:  gi18
30-Aug-2011 22:10:09 %LINK-W-Down:  gi23, aggregated (1)
30-Aug-2011 22:10:10 %LINK-W-Down:  gi19
30-Aug-2011 22:10:11 %LINK-W-Down:  gi21, aggregated (1)
30-Aug-2011 22:10:11 %STP-W-PORTSTATUS: gi18: STP status Forwarding
30-Aug-2011 22:10:11 %LINK-I-Up:  gi18
30-Aug-2011 22:10:12 %STP-W-PORTSTATUS: gi23: STP status Forwarding
30-Aug-2011 22:10:12 %LINK-I-Up:  gi23
30-Aug-2011 22:10:13 %LINK-I-Up:  gi21, aggregated (1)
30-Aug-2011 22:10:13 %STP-W-PORTSTATUS: gi19: STP status Forwarding
30-Aug-2011 22:10:13 %LINK-I-Up:  gi19
30-Aug-2011 22:10:14 %LINK-W-Down:  gi4
30-Aug-2011 22:10:14 %LINK-W-Down:  gi22
30-Aug-2011 22:10:15 %LINK-W-Down:  gi18
30-Aug-2011 22:10:16 %LINK-W-Down:  gi24
30-Aug-2011 22:10:16 %LINK-W-Down:  gi23
30-Aug-2011 22:10:17 %STP-W-PORTSTATUS: gi18: STP status Forwarding
30-Aug-2011 22:10:17 %LINK-I-Up:  gi18
30-Aug-2011 22:10:17 %LINK-W-Down:  gi19
30-Aug-2011 22:10:17 %STP-W-PORTSTATUS: gi22: STP status Forwarding
30-Aug-2011 22:10:17 %LINK-I-Up:  gi22
30-Aug-2011 22:10:17 %STP-W-PORTSTATUS: gi21: STP status Forwarding
30-Aug-2011 22:10:18 %STP-W-PORTSTATUS: gi23: STP status Forwarding
30-Aug-2011 22:10:18 %LINK-I-Up:  gi23
30-Aug-2011 22:10:19 %STP-W-PORTSTATUS: gi19: STP status Forwarding
30-Aug-2011 22:10:19 %LINK-I-Up:  gi19
30-Aug-2011 22:10:19 %STP-W-PORTSTATUS: gi24: STP status Forwarding
30-Aug-2011 22:10:19 %LINK-I-Up:  gi24
30-Aug-2011 22:10:21 %LINK-W-Down:  gi22
30-Aug-2011 22:10:22 %LINK-W-Down:  gi21
30-Aug-2011 22:10:23 %STP-W-PORTSTATUS: gi22: STP status Forwarding
30-Aug-2011 22:10:23 %LINK-I-Up:  gi22
30-Aug-2011 22:10:23 %LINK-W-Down:  gi24

% Unrecognized command
VESLSW2#30-Aug-2011 22:10:24 %LINK-I-Up:  gi21
30-Aug-2011 22:10:24 %STP-W-PORTSTATUS: gi24: STP status Forwarding, aggregated (1)
30-Aug-2011 22:10:24 %LINK-I-Up:  gi24, aggregated (1)
30-Aug-2011 22:10:26 %LINK-W-Down:  gi18
30-Aug-2011 22:10:28 %STP-W-PORTSTATUS: gi21: STP status Forwarding
30-Aug-2011 22:10:28 %LINK-W-Down:  gi23
30-Aug-2011 22:10:28 %LINK-I-Up:  gi18
30-Aug-2011 22:10:29 %LINK-W-Down:  gi19

VESLSW2#30-Aug-2011 22:10:30 %LINK-I-Up:  gi23
30-Aug-2011 22:10:31 %LINK-I-Up:  gi19
30-Aug-2011 22:10:31 %LINK-W-Down:  gi21
30-Aug-2011 22:10:32 %STP-W-PORTSTATUS: gi18: STP status Forwarding
30-Aug-2011 22:10:33 %LINK-W-Down:  gi22
30-Aug-2011 22:10:34 %STP-W-PORTSTATUS: gi19: STP status Forwarding
30-Aug-2011 22:10:34 %STP-W-PORTSTATUS: gi21: STP status Forwarding, aggregated (1)
30-Aug-2011 22:10:34 %LINK-I-Up:  gi21
30-Aug-2011 22:10:34 %STP-W-PORTSTATUS: gi23: STP status Forwarding
30-Aug-2011 22:10:34 %LINK-I-Up:  gi22
30-Aug-2011 22:10:35 %LINK-W-Down:  gi24
30-Aug-2011 22:10:35 %LINK-W-Down:  gi18
30-Aug-2011 22:10:36 %LINK-I-Up:  gi24
30-Aug-2011 22:10:38 %LINK-W-Down:  gi19
30-Aug-2011 22:10:38 %LINK-W-Down:  gi21
30-Aug-2011 22:10:38 %STP-W-PORTSTATUS: gi18: STP status Forwarding
30-Aug-2011 22:10:38 %LINK-I-Up:  gi18
30-Aug-2011 22:10:38 %LINK-W-Down:  gi23
30-Aug-2011 22:10:39 %STP-W-PORTSTATUS: gi22: STP status Forwarding
30-Aug-2011 22:10:39 %LINK-I-Up:  gi21
30-Aug-2011 22:10:41 %STP-W-PORTSTATUS: gi19: STP status Forwarding
30-Aug-2011 22:10:41 %LINK-I-Up:  gi19
30-Aug-2011 22:10:41 %STP-W-PORTSTATUS: gi24: STP status Forwarding
30-Aug-2011 22:10:41 %STP-W-PORTSTATUS: gi23: STP status Forwarding
30-Aug-2011 22:10:41 %LINK-I-Up:  gi23
30-Aug-2011 22:10:42 %LINK-W-Down:  gi18
30-Aug-2011 22:10:44 %STP-W-PORTSTATUS: gi21: STP status Forwarding
30-Aug-2011 22:10:44 %LINK-W-Down:  gi22
TeshomaAsked:
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davorinCommented:
Are you referring to "STP status Forwarding" logs? That are not errors but just a report of Spanning Tree Protocol status on the switch interfaces. That means the interface is in normal operation with STP enabled.
http://en.wikipedia.org/wiki/Spanning_Tree_Protocol
0
TeshomaAuthor Commented:
Then why the constant coming up and going down of the interfaces? It gets so much, the whole network shuts down, what could be causing it?
0
davorinCommented:
I didn't noticed that this is a 2 minute period.
Is this the only switch or you have multiple?
If you have multiple and they are connected in loop it could be that you have broadcast storm bacouse STP is not configured correctly. You can fast check that if you eliminate a loop between switches.
If it is the only one, then maybe it is something wrong with it. You can try to disconnect from electricity or try to upgrade the firmware.

http://www.it-pathways.com/what-is-a-broadcast-storm.html
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TeshomaAuthor Commented:
Already did that and it was on its own and not connected to another switch. I initially plugged in a spg 300 series with this same result, i thought it was not compatible with the UC560 systems, so i got another switch, this time an ESW 520 series switch, it whole network came down and i thought it was the UC560, we just eliminated that box this morning and noticed this from the switch. I do not think both switches have the same bug, so i am suspecting there is something else wrong. Only right now, i am all out of ideas, i really have no idea what to think or check for anymore. Any new thoughts will be appreciated.
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davorinCommented:
So two different switches without being connected to any other switch act in the same way.

You can try to do two more things. You can try to check network traffic with some network monitoring tool like wireshark if something abnormal is happening. Or you can try to disconnect equipment from switch one by one and try to figure it out which one (or combination) is causing problems. I would also exclude that the problem is at switch side.
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TeshomaAuthor Commented:
Its a combination of systems, i tried the second one, but i am afraid i did not think of sniffing the network traffic. When i tried them, after removing certain network cables it became stable and when they are all plugged back in, it is fine until the system is restarted or shut down for the day. But it always comes back.

0
davorinCommented:
Sorry, I don't understand you completely. Are you saying that the problem is not repeatable at the moment you wish to occur, but the problems comes back at random times normally after short or long shutdown and restart of equipment connected to switch.
This will make the elimination process more complicated.
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TeshomaAuthor Commented:
Yes that is exactly what i am trying to say, it comes back at random times. we went round and tested the cables for continuity and found some port had issues and fixed them, so i am hoping that takes care of that issue.
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TeshomaAuthor Commented:
The issue was layer 1. Cabling infrastructure was the cause of the whole problem, because we took those same equipment and deployed them at another site, and not one issue from that site. And since we checked and fixed a lot of the cabling issues, they seem to be fine now, keeping my fingers crossed though.
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TeshomaAuthor Commented:
The site for now is fine.
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davorinCommented:
Thank you for feedback. I'm glad you have solved your problem and I'm sorry I was not more that a small moral support to you. Fingers crossed...
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TeshomaAuthor Commented:
Lol, i will say you were more than a small moral support. Thank you for all your help.
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