FIB table

A device selects optimal routes from the routing table, and puts them into the FIB table. Each FIB entry specifies the next hop IP address and output interface for packets destined for a specific subnet or host.

For more information about the routing table, see Layer 3—IP Routing Configuration Guide.

Use the display fib command to display FIB table entries. The following example displays the entire FIB table.

<Sysname> display fib

Destination count: 4 FIB entry count: 4

Flag:
  U:Usable   G:Gateway   H:Host   B:Blackhole   D:Dynamic   S:Static
  R:Relay     F:FRR

Destination/Mask   Nexthop         Flag     OutInterface/Token       Label
10.2.0.0/16        10.2.1.1        U        GE1/0/1                  Null
10.2.1.1/32        127.0.0.1       UH       InLoop0                  Null
127.0.0.0/8        127.0.0.1       U        InLoop0                  Null
127.0.0.1/32       127.0.0.1       UH       InLoop0                  Null

A FIB entry includes the following items: