Cisco ASR 9000 Series Configuration Guidelines

Figure 61: MSTAG Guidelines
The configuration steps listed in the following sections show all of the configurable parameters. However, in
general, most of these can be retained with the default values.
Note
SUMMARY STEPS
1. configure
2. spanning-tree mstag protocol instance identifier
3. preempt delay for interval{ seconds | minutes | hours }
4. interface { Bundle-Ether | GigabitEthernet | TenGigE | FastEthernet } instance.subinterface
5. name name
6. revision revision -number
7. max age seconds
8. provider-bridge
9. bridge-id id
10. port-id id
11. external-cost cost
12. hello-time seconds
13. instance id
14. edge mode
15. vlan-id vlan-range [, vlan-range ] [,vlan-range ] [,vlan-range ]
16. priority priority
17. port-priority priority
18. cost cost
19. root-bridge id
20. root-priority priority
21. Use the commit or end command.
L2VPN and Ethernet Services Configuration Guide for Cisco ASR 9000 Series Routers, IOS XR Release 6.3.x
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Implementing Multiple Spanning Tree Protocol
Configuring MSTAG parameters

Cisco ASR 9000 Series Specifications

General

Series	ASR 9000
Category	Network Router
Modular Design	Yes
Redundancy	Yes (Hardware and Software)
Operating System	Cisco IOS XR
Interfaces/Ports	10G, 40G, 100G, 400G Ethernet
Expansion Slots	Varies by model
Routing Protocol	BGP, OSPF, IS-IS, EIGRP
Management	CLI, SNMP, NETCONF
Power Supply	Redundant
Port Density	Varies by model
Power Supply Options	AC, DC
Memory	Varies by model
Storage	Varies by model
Dimensions	Varies by model
Weight	Varies by model