191
[SwitchA] display track all
Track ID: 1
State: Negative
Duration: 0 days 0 hours 0 minutes 32 seconds
Notification delay: Positive 0, Negative 0 (in seconds)
Tracked object:
NQA entry: admin test
Reaction: 1
The output shows that the status of the track entry is Negative, indicating that the NQA operation has
failed and the master route is unavailable.
# Display the routing table of Switch A.
[SwitchA] display ip routing-table
Routing Tables: Public
Destinations : 10 Routes : 10
Destination/Mask Proto Pre Cost NextHop Interface
10.1.1.0/24 Direct 0 0 10.1.1.1 Vlan2
10.1.1.1/32 Direct 0 0 127.0.0.1 InLoop0
10.2.1.0/24 Static 60 0 10.1.1.2 Vlan2
10.3.1.0/24 Direct 0 0 10.3.1.1 Vlan3
10.3.1.1/32 Direct 0 0 127.0.0.1 InLoop0
20.1.1.0/24 Direct 0 0 20.1.1.1 Vlan6
20.1.1.1/32 Direct 0 0 127.0.0.1 InLoop0
30.1.1.0/24 Static 80 0 10.3.1.3 Vlan3
127.0.0.0/8 Direct 0 0 127.0.0.1 InLoop0
127.0.0.1/32 Direct 0 0 127.0.0.1 InLoop0
The output shows that Switch A forwards packets to 30.1.1.0/24 through Switch C. The backup static
route has taken effect.
# Verify that the hosts in 20.1.1.0/24 can communicate with the hosts in 30.1.1.0/24 when the master
route fails.
[SwitchA] ping -a 20.1.1.1 30.1.1.1
Ping 30.1.1.1: 56 data bytes, press CTRL_C to break
Reply from 30.1.1.1: bytes=56 Sequence=1 ttl=254 time=2 ms
Reply from 30.1.1.1: bytes=56 Sequence=2 ttl=254 time=1 ms
Reply from 30.1.1.1: bytes=56 Sequence=3 ttl=254 time=1 ms
Reply from 30.1.1.1: bytes=56 Sequence=4 ttl=254 time=2 ms
Reply from 30.1.1.1: bytes=56 Sequence=5 ttl=254 time=1 ms
--- Ping statistics for 30.1.1.1 ---
5 packet(s) transmitted, 5 packet(s) received, 0.00% packet loss
round-trip min/avg/max/std-dev = 1/1/2/1 ms
# Verify that the hosts in 30.1.1.0/24 can communicate with the hosts in 20.1.1.0/24 when the master
route fails.
[SwitchB] ping -a 30.1.1.1 20.1.1.1
Ping 20.1.1.1: 56 data bytes, press CTRL_C to break
Reply from 20.1.1.1: bytes=56 Sequence=1 ttl=254 time=2 ms
Reply from 20.1.1.1: bytes=56 Sequence=2 ttl=254 time=1 ms
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