4000 Router Series Layer 3 - IP Services Command Reference

167

Basic IP forwarding commands

display fib

Use display fib to display FIB entries.

Syntax

display fib [ vpn-instance vpn-instance-name ] [ ip-address [ mask | mask-length ] ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

vpn-instance vpn-instance-name: Displays the FIB table of the specified VPN. The vpn-instance-name

argument is a case-sensitive string of 1 to 31 characters. If you do not specify any VPN, the command

displays the FIB entries of the public network.

ip-address: Displays the FIB entry that matches the specified destination IP address.

mask: Specifies the mask for the IP address.

mask-length: Specifies the mask length for the IP address, the number of consecutive ones in the mask.

The value range is 0 to 32.

Usage guidelines

Each FIB entry contains a destination IP address/mask, next hop, and output interface.

If you specify an IP address without a mask or mask length, this command displays the longest matching

FIB entry.

If you specify an IP address and a mask or mask length, this command displays the exactly matching FIB

entry.

Examples

# Display all FIB entries of the public network.

<Sysname> display fib

Destination count: 5 FIB entry count: 6

Flag:

U:Useable G:Gateway H:Host B:Blackhole D:Dynamic S:Static

R:Relay F:FRR

Destination/Mask Nexthop Flag OutInterface/Token Label

0.0.0.0/32 127.0.0.1 UH InLoop0 Null

1.1.1.0/24 192.168.126.1 USGF GE0/1 Null