[c-nsp] STP funnies - moving from forwarding to forwarding

[Dale W. Carder]

Thus spake Daniel Roesen (dr at cluenet.de) on Wed, May 10, 2006 at 02:23:53PM +0200:
> On Thu, May 04, 2006 at 06:13:07PM +0200, Daniel Roesen wrote:
> > %SPANTREE-SP-6-PORT_STATE: Port Gi4/1 instance 100 moving from
> > forwarding to forwarding
> 
> Nobody ever seen that happening?

Ok, now you made me look...

I see that message coming from 6500's only.  These are running                            
SXE2.  Here's a sample "transaction" when that message seems                            
to occur.  In this example, fa7/43 bounces and the message 
from the other ports on that vlan occur.

May 10 12:11:13 switch-23 12766: May 10 12:11:12: %LINK-3-UPDOWN: Interface FastEthernet7/43, changed state to down
May 10 12:11:14 switch-23 12767: May 10 12:11:12: %SPANTREE-SP-6-PORT_STATE: Port Fa7/43 instance 632 moving from forwarding to disabled
May 10 12:11:51 switch-23 12768: May 10 12:11:51: %SPANTREE-SP-6-PORT_STATE: Port Fa7/33 instance 632 moving from forwarding to forwarding
May 10 12:11:51 switch-23 12769: May 10 12:11:51: %SPANTREE-SP-6-PORT_STATE: Port Fa7/34 instance 632 moving from forwarding to forwarding
May 10 12:11:51 switch-23 12770: May 10 12:11:51: %SPANTREE-SP-6-PORT_STATE: Port Fa7/44 instance 632 moving from forwarding to forwarding
May 10 12:11:51 switch-23 12771: May 10 12:11:51: %SPANTREE-SP-6-PORT_STATE: Port Gi8/1 instance 632 moving from forwarding to forwarding
May 10 12:11:51 switch-23 12772: May 10 12:11:51: %SPANTREE-SP-6-PORT_STATE: Port Gi8/2 instance 632 moving from forwarding to forwarding
May 10 12:11:51 switch-23 12773: May 10 12:11:51: %SPANTREE-SP-6-PORT_STATE: Port Fa9/2 instance 632 moving from forwarding to forwarding
May 10 12:11:51 switch-23 12774: May 10 12:11:51: %LINK-3-UPDOWN: Interface FastEthernet7/43, changed state to up


It must not mean anything bad, because I set SEC to ignore it 
over a year ago:

# Stupid STP message from 6500's
type=Suppress
ptype=RegExp
pattern=SPANTREE-SP-6-PORT_STATE.+from forwarding to forwarding


:-)

Dale

-----------------------------------
Dale W. Carder - Network Engineer   
University of Wisconsin at Madison  
http://net.doit.wisc.edu/~dwcarder