HP HSR6800 Configuration Manual page 195

--- 100.1.1.2 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 30/50/70 ms
# From CE2, ping subnet 100.3.1.0/24 connected to CE1. The ping operation succeeds.
[CE2] ping 100.3.1.1
PING 100.3.1.1: 56
Reply from 100.3.1.1: bytes=56 Sequence=1 ttl=255 time=30 ms
Reply from 100.3.1.1: bytes=56 Sequence=2 ttl=255 time=60 ms
Reply from 100.3.1.1: bytes=56 Sequence=3 ttl=255 time=50 ms
Reply from 100.3.1.1: bytes=56 Sequence=4 ttl=255 time=40 ms
Reply from 100.3.1.1: bytes=56 Sequence=5 ttl=255 time=70 ms
--- 100.3.1.1 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 30/50/70 ms
# Execute the mpls l2vc switchover command on PE 1 to switch the working VC.
<PE1> system-view
[PE1] interface serial 2/1/0
[PE1-Serial2/1/0] mpls l2vc switchover
[PE1-Serial2/1/0] quit
# Display VC information on PE 1. The output shows that the backup VC is now up.
[PE1] display mpls l2vc
Total ldp vc : 2
Transport Client
VC ID Intf
20 S2/1/0
30 S2/1/0
# CE 1 and CE 2 can ping each other.
[CE1] ping 100.2.1.2
PING 100.2.1.2: 56
Reply from 100.2.1.2: bytes=56 Sequence=1 ttl=255 time=30 ms
Reply from 100.2.1.2: bytes=56 Sequence=2 ttl=255 time=60 ms
Reply from 100.2.1.2: bytes=56 Sequence=3 ttl=255 time=50 ms
Reply from 100.2.1.2: bytes=56 Sequence=4 ttl=255 time=40 ms
Reply from 100.2.1.2: bytes=56 Sequence=5 ttl=255 time=70 ms
--- 100.2.1.2 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 30/50/70 ms
# CE 2 can still ping subnet 100.3.1.0/24.
data bytes, press CTRL_C to break
1 up 0 down
Service
ID
--
--
data bytes, press CTRL_C to break
187
1 blocked
VC Local Remote
State VC Label VC Label
blocked 1026 1033
up 1027 1050