NT-66U Spanning Tree Question

[cmoskowitz]

Does anyone know what priority # enabling this on the switch does? I have a bunch of UBNT stuff and I'm trying to enable STP but need to understand if ASUS sets the priority to 0 or something higher.

 

[RMerlin]

Does anyone know what priority # enabling this on the switch does? I have a bunch of UBNT stuff and I'm trying to enable STP but need to understand if ASUS sets the priority to 0 or something higher.

They don't set any specific value, so it's all default values.

admin@Stargate3:/tmp/home/root# brctl showstp br0
br0
 bridge id		8000.00904c0ff000
 designated root	8000.00904c0ff000
 root port		   0			path cost		   0
 max age		  20.00			bridge max age		  20.00
 hello time		   2.00			bridge hello time	   2.00
 forward delay		   0.00			bridge forward delay	   0.00
 ageing time		 300.00
 hello timer		   1.22			tcn timer		   0.00
 topology change timer	   0.00			gc timer		  85.53
 flags			


vlan1 (1)
 port id		8001			state		     forwarding
 designated root	8000.00904c0ff000	path cost		 100
 designated bridge	8000.00904c0ff000	message age timer	   0.00
 designated port	8001			forward delay timer	   0.00
 designated cost	   0			hold timer		   0.22
 flags			

eth1 (2)
 port id		8002			state		     forwarding
 designated root	8000.00904c0ff000	path cost		 100
 designated bridge	8000.00904c0ff000	message age timer	   0.00
 designated port	8002			forward delay timer	   0.00
 designated cost	   0			hold timer		   0.22
 flags			

eth2 (3)
 port id		8003			state		     forwarding
 designated root	8000.00904c0ff000	path cost		 100
 designated bridge	8000.00904c0ff000	message age timer	   0.00
 designated port	8003			forward delay timer	   0.00
 designated cost	   0			hold timer		   0.22
 flags

 

[cmoskowitz]

Thanks Merlin. Do you know which field would be an equivalent Cisco priority value? I have 3 other switches downstream and I will need to adjust them to a larger value one by one off of the asus.

 

[RMerlin]

Thanks Merlin. Do you know which field would be an equivalent Cisco priority value? I have 3 other switches downstream and I will need to adjust them to a larger value one by one off of the asus.

No idea. My knowledge of STP tells me that it prevents loops in the network. And that's all I know about STP.

 

[cmoskowitz]

got it, from my understanding you want the router to be set as a root bridge (or a value of zero for the priority), and in increments of 4096 thereafter. Thanks Merlin