H3C Technologies H3C S10500 Series Switches - Manual (Page 200)

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Destination/Mask Proto Pre Cost NextHop Interface
10.2.1.0/24 Direct 0 0 10.2.1.1 Vlan2
10.2.1.1/32 Direct 0 0 127.0.0.1 InLoop0
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 Vlan5
20.1.1.1/32 Direct 0 0 127.0.0.1 InLoop0
30.1.1.0/24 Static 60 0 10.2.1.2 Vlan2
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 BFD detection result: the next hop 10.2.1.2 is reachable (the status of the track entry
is Positive). The master static route takes effect. Switch A forwards packets to 30.1.1.0/24 through Switch
B.
# Remove the IP address of interface VLAN-interface 2 on Switch B.
<SwitchB> system-view
[SwitchB] interface vlan-interface 2
[SwitchB-Vlan-interface2] undo ip address
# Display information of the track entry on Switch A.
[SwitchA] 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:
BFD Session:
Packet type: Echo
Interface : Vlan-interface2
Remote IP : 10.2.1.2
Local IP : 10.2.1.1
# Display the routing table of Switch A.
[SwitchA] display ip routing-table
Routing Tables: Public
Destinations : 9 Routes : 9
Destination/Mask Proto Pre Cost NextHop Interface
10.2.1.0/24 Direct 0 0 10.2.1.1 Vlan2
10.2.1.1/32 Direct 0 0 127.0.0.1 InLoop0
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 Vlan5
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 the BFD detection result: the next hop 10.2.1.2 is unreachable (the status of the track
entry is Negative), and the backup static route takes effect, and Switch A forwards packets to
30.1.1.0/24 through Switch C and Switch B.