Cisco Systems A9014CFD manual 13-3, MST0

Chapter 13 Configuring MST on EVC Bridge Domain

Contents

•When an MST is configured on the outer VLAN, you can configure any number of service instances with the same outer VLAN as shown in the following configuration example.

nPE1#sh run int gi0/5

Building configuration...

Current configuration : 373 bytes

!

interface GigabitEthernet0/5 description connected to CE1 no ip address

service instance 100 ethernet encapsulation dot1q 100 second-dot1q 1 bridge-domain 100

!

service instance 101 ethernet encapsulation dot1q 100 second-dot1q 2 bridge-domain 101

!

service instance 102 ethernet encapsulation dot1q 100 second-dot1q 120-140 bridge-domain 102

!

end

nPE1#sh run int gi0/6

Building configuration...

Current configuration : 373 bytes

!

interface GigabitEthernet0/6 description connected to CE1 no ip address

service instance 100 ethernet encapsulation dot1q 100 second-dot1q 1 bridge-domain 100

!

service instance 101 ethernet encapsulation dot1q 100 second-dot1q 2 bridge-domain 101

!

service instance 102 ethernet encapsulation dot1q 100 second-dot1q 120-140 bridge-domain 102

!

end

	nPE1#sh span	vlan 100
	MST0
	Spanning tree enabled protocol mstp
	Root ID	Priority	32768
		Address	0018.742f.3b80
		Cost	0
		Port	2821 (GigabitEthernet12/5)
		Hello Time	2 sec	Max Age 20 sec	Forward Delay 15 sec
	Bridge ID	Priority	32768 (priority 32768 sys-id-ext 0)
		Address	001a.303c.3400
		Hello Time	2 sec	Max Age 20 sec	Forward Delay 15 sec
	Interface	Role	Sts Cost	Prio.Nbr Type
------------------- ----			--- --------- -------- --------------------------------
		Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide
	OL-23826-09					13-3