Cisco ASR 9000 Series Reference Guide

Task ID
OperationsTask ID
readethernet-services
Examples
This example shows the output from the show spanning-tree pvrst command, which produces an overview
of the spanning tree protocol state:
RP/0/RSP0/CPU0:router# show spanning-tree pvrst MSTP
Role: ROOT=Root, DSGN=Designated, ALT=Alternate, BKP=Backup
State: FWD=Forwarding, LRN=Learning, BLK=Blocked
VLAN 10:
Root ID Priority 4096
Address 8cb6.4fe9.7b9e
This bridge is the root
Max Age 20 sec, Forward Delay 15 sec
Bridge ID Priority 4096 (priority 4096 sys-id-ext 0)
Address 8cb6.4fe9.7b9e
Max Age 20 sec, Forward Delay 15 sec
Transmit Hold count 6
Interface Port ID Role State Designated Port ID
Pri.Nbr Cost Bridge ID Pri.Nbr
------------ ------- --------- ---- ----- -------------------- -------
Gi0/5/0/0 128.1 20000 DSGN FWD 4096 8cb6.4fe9.7b9e 128.1
Gi0/5/0/2 128.2 20000 DSGN FWD 4096 8cb6.4fe9.7b9e 128.2
VLAN 20:
Root ID Priority 8192
Address c062.6bac.a07e
Max Age 20 sec, Forward Delay 15 sec
Bridge ID Priority 16384 (priority 16384 sys-id-ext 0)
Address 8cb6.4fe9.7b9e
Max Age 20 sec, Forward Delay 15 sec
Transmit Hold count 6
Interface Port ID Role State Designated Port ID
Pri.Nbr Cost Bridge ID Pri.Nbr
------------ ------- --------- ---- ----- -------------------- -------
Gi0/5/0/0 128.1 20000 ROOT FWD 8192 c062.6bac.a07e 128.1
Gi0/5/0/2 128.2 20000 ALT BLK 8192 c062.6bac.a07e 128.2
This example shows the output from the show spanning-tree pvrst command when the brief and blocked-ports
keywords are used:
RP/0/RSP0/CPU0:router# show spanning-tree pvrst st1 brief
VLAN 1 (native-vlan):
This is the Root Bridge
VLAN 101:
Root Port GigabitEthernet0/1/2/2 , Root Bridge ID 0002.9b78.0812
...
RP/0/RSP0/CPU0:router# show spanning-tree pvrst st1 blocked-ports
VLAN 1 (native-vlan):
Cisco ASR 9000 Series Aggregation Services Router VPN and Ethernet Services Command Reference, Release
6.1.x
611
Multiple Spanning Tree Protocol Commands
show spanning-tree pvrst

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