H3C Technologies H3C SR8800 - Manual (Page 141)

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20.1.1.0/24 Direct 0 0 20.1.1.1 GE3/1/3
20.1.1.1/32 Direct 0 0 127.0.0.1 InLoop0
30.1.1.0/24 Static 60 0 10.1.1.2 GE3/1/1
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 the NQA test result: the master route is available (the status of the track entry is Positive),
and Router A forwards packets to 30.1.1.0/24 through Router B.
# Remove the IP address of interface GigabitEthernet 3/1/1 on Router B.
system-view
[RouterB] interface GigabitEthernet 3/1/1
[RouterB-GigabitEthernet3/1/1] undo ip address
# Display information of the track entry on Router A.
[RouterA] display track all
Track ID: 1
Status: Negative
Duration: 0 days 0 hours 0 minutes 32 seconds
Notification delay: Positive 0, Negative 0 (in seconds)
Reference object:
NQA entry: admin test
Reaction: 1
# Display the routing table of Router A.
[RouterA] 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 GE3/1/1
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 GE3/1/1
10.3.1.0/24 Direct 0 0 10.3.1.1 GE3/1/2
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 GE3/1/3
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 GE3/1/2
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 the NQA test result: if the master route is unavailable (the status of the track entry is
Negative), the backup static route takes effect and Router A forwards packets to 30.1.1.0/24 through
Router C.
# When the master route fails, the hosts in 20.1.1.0/24 can still communicate with the hosts in
30.1.1.0/24.
[RouterA] 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