STP Issue - Have a look at the Error.

From: Joe Mama (jsmith1234550@gmail.com)
Date: Wed Nov 21 2007 - 17:01:52 ART

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Looks like the LAN team perhaps moved the root or a UDLD issue perhaps
(root BDPUs are not getting there!)? What are the most common causes
that everyone here has seen for this? The two ports below connect to
a core switch at one of the sites....

Thanks in advance,
Joe

topology change count 10140

2007 Nov 19 23:38:43 EST -05:00 %SPANTREE-6-PORTBLK: Port 9/47 state
in VLAN 992 changed to blocking
2007 Nov 19 23:38:43 EST -05:00 %SPANTREE-6-PORTFWD: Port 9/48 state
in VLAN 992 changed to forwarding
2007 Nov 19 23:42:25 EST -05:00 %SPANTREE-5-MSGAGEEXPIRY: Msg Age
timer expired on port 9/48 in vlan 995
2007 Nov 19 23:42:26 EST -05:00 %SPANTREE-6-PORTBLK: Port 9/48 state
in VLAN 995 changed to blocking
2007 Nov 20 02:17:41 EST -05:00 %SPANTREE-5-MSGAGEEXPIRY: Msg Age
timer expired on port 9/48 in vlan 992
2007 Nov 20 02:17:41 EST -05:00 %SPANTREE-6-PORTLISTEN: Port 9/48
state in VLAN 992 changed to listening
2007 Nov 20 02:17:41 EST -05:00 %SPANTREE-6-PORTBLK: Port 9/47 state
in VLAN 992 changed to blocking
2007 Nov 20 02:17:41 EST -05:00 %SPANTREE-6-PORTFWD: Port 9/48 state
in VLAN 992 changed to forwarding
2007 Nov 20 03:46:00 EST -05:00 %SPANTREE-5-MSGAGEEXPIRY: Msg Age
timer expired on port 9/48 in vlan 995
2007 Nov 20 03:46:01 EST -05:00 %SPANTREE-6-PORTBLK: Port 9/48 state
in VLAN 995 changed to blocking
2007 Nov 20 03:57:55 EST -05:00 %SPANTREE-5-MSGAGEEXPIRY: Msg Age
timer expired on port 9/48 in vlan 995
2007 Nov 20 03:57:56 EST -05:00 %SPANTREE-6-PORTBLK: Port 9/48 state
in VLAN 995 changed to blocking

2007 Nov 20 08:10:01 EST -05:00 %SPANTREE-6-PORTBLK: Port 9/47 state
in VLAN 992 changed to blocking

2007 Nov 20 22:27:48 EST -05:00 %SPANTREE-5-MSGAGEEXPIRY: Msg Age
timer expired on port 9/48 in vlan 995
2007 Nov 20 22:27:49 EST -05:00 %SPANTREE-6-PORTBLK: Port 9/48 state
in VLAN 995 changed to blocking
2007 Nov 20 23:38:48 EST -05:00 %SPANTREE-5-MSGAGEEXPIRY: Msg Age
timer expired on port 9/48 in vlan 995
2007 Nov 20 23:38:49 EST -05:00 %SPANTREE-6-PORTBLK: Port 9/48 state
in VLAN 995 changed to blocking

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