Cisco ASR 903 - Protection Switching

Layer 2 Solution
G.8032 ▀
Cisco ASR 903 Router Design and Deployment Guide▄
OL-30526-01
35
Protection Switching
ASR903-R3# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
ASR903-R3(config)# interface gigabitEtherenet0/2/1
ASR903-R3(config-if)# shut
ASR903-R3(config-if)#
*Jun 12 19:25:20.949: %ERP_G8032-6-STATE_CHANGED: Ethernet ring g8032_ring instance 1
changed state to Protection
*Jun 12 19:25:22.861: %LINK-5-CHANGED: Interface GigabitEthernet0/2/1, changed state
to administratively down
*Jun 12 19:25:22.882: %LINEPROTO-5-UPDOWN: Line protocol on Interface
GigabitEthernet0/2/1, changed state to down
ASR903-R3(config-if)# end
ASR903-R1#
*Jun 12 19:25:45.098: %ERP_G8032-6-STATE_CHANGED: Ethernet ring g8032_ring instance 1
changed state to Protection
ASR903-R1#
ASR903-R1# show ethernet ring g8032 brief
R: Interface is the RPL-link
F: Interface is faulty
B: Interface is blocked
FS: Local forced switch
MS: Local manual switch
RingName Inst NodeType NodeState Port0 Port1
--------------------------------------------------------------------------------
g8032_ring 1 Owner Protection R
ASR903-R1# show ethernet ring g8032 port status
Port: GigabitEthernet0/2/0
Ring: g8032_ring
Block vlan list:
Unblock vlan list: 10,1000-2999
REQ/ACK: 2/2
Instance 1 is in Unblocked state
Port: GigabitEthernet0/2/1
Ring: g8032_ring
Block vlan list:
Unblock vlan list: 10,1000-2999
REQ/ACK: 2/2
Instance 1 is in Unblocked state
ASR903-R1# show ethernet ring g8032 status
Ethernet ring g8032_ring instance 1 is RPL Owner node in Protection State
Port0: GigabitEthernet0/2/1 (Monitor: GigabitEthernet0/2/1)
APS-Channel: GigabitEthernet0/2/1