display fib

Syntax

display fib [ vpn-instance vpn-instance-name ] [ acl acl-number | ip-prefix ip-prefix-name ] [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

vpn-instance vpn-instance-name: Displays the FIB entries of the specified VPN. The vpn-instance-name argument is a case-sensitive string of 1 to 31 characters. Without this option specified, the FIB entries of the public network are displayed.

acl acl-number: Displays FIB entries matching a specified ACL numbered from 2000 to 2999. If the specified ACL does not exist, all FIB entries are displayed.

ip-prefix ip-prefix-name: Displays FIB entries matching a specified IP prefix list, a string of 1 to 19 characters. If the specified IP prefix list does not exist, all FIB entries are displayed.

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

exclude: Displays all lines that do not match the specified regular expression.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use display fib to display FIB entries.

If no parameters are specified, all FIB entries are displayed.

Examples

# Display all FIB entries.

<Sysname> display fib
Destination count: 4    FIB entry count: 4

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

Destination/Mask  Nexthop     Flag    OutInterface  InnerLabel Token  
10.2.0.0/16       10.2.1.1    U       Vlan1        Null       Invalid
10.2.1.1/32       127.0.0.1   UH      InLoop0       Null       Invalid
127.0.0.0/8       127.0.0.1   U       InLoop0       Null       Invalid
127.0.0.1/32      127.0.0.1   UH      InLoop0       Null       Invalid

# Display FIB entries matching ACL 2000.

<Sysname> system-view
[Sysname] acl number 2000
[Sysname-acl-basic-2000] rule permit source 10.2.0.0 0.0.255.255
[Sysname-acl-basic-2000] display fib acl 2000
Destination count: 2    FIB entry count: 2

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

Destination/Mask  Nexthop     Flag    OutInterface  InnerLabel Token  
10.2.0.0/16       10.2.1.1    U       Vlan1        Null       Invalid
10.2.1.1/32       127.0.0.1   UH      InLoop0       Null       Invalid

# Display all entries that contain the string 127 and start from the first one.

<Sysname> display fib | begin 127
Flag:
  U:Useable   G:Gateway   H:Host   B:Blackhole   D:Dynamic   S:Static
  R:Relay

Destination/Mask  Nexthop     Flag    OutInterface  InnerLabel Token  
10.2.1.1/32       127.0.0.1   UH      InLoop0       Null       Invalid
127.0.0.0/8       127.0.0.1   U       InLoop0       Null       Invalid
127.0.0.1/32      127.0.0.1   UH      InLoop0       Null       Invalid

# Display FIB information matching the IP prefix list abc0.

<Sysname> system-view
[Sysname] ip ip-prefix abc0 permit 10.2.0.0 16
[Sysname] display fib ip-prefix abc0
Destination count: 1    FIB entry count: 1

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

Destination/Mask Nexthop     Flag    OutInterface  InnerLabel Token  
10.2.0.0/16      10.2.1.1    U       Vlan1        Null       Invalid

Table 23: Command output

Field	Description
Destination count	Total number of destination addresses.
FIB entry count	Total number of FIB entries.
Destination/Mask	Destination address/length of mask.
Nexthop	Next hop address.
Flag	Flags of routes: U—Usable route. G—Gateway route. H—Host route. B—Blackhole route. D—Dynamic route. S—Static route. R—Recursive route.
OutInterface	Outbound interface.
InnerLabel	Inner label.
Token	Label switched path (LSP) index number.

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