display fib

Function

The display fib command displays information about the FIB table.

Format

display fib [ slot-id ] [ vpn-instance vpn-instance-name ] [ verbose ]

Parameters

Parameter	Description	Value
slot-id	Displays information about the FIB table with a specified slot ID.	The value is an integer and the value range depends on the device configuration.
vpn-instance vpn-instance-name	Displays information about the FIB table of a specified VPN instance.	The value must be an existing VPN instance name.
verbose	Displays detailed information about the FIB table.	-

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

The display fib command displays information about the FIB table. Each row represents a route.

If there are lots of routes, using wildcard (|, begin, exclude, include, regular-expression) to display information or details lasts a long time. You can press Ctrl+C to terminate information display.

Example

# Display brief information about the FIB table.

<HUAWEI> display fib
Route Flags: G - Gateway Route, H - Host Route,    U - Up Route                 
             S - Static Route,  D - Dynamic Route, B - Black Hole Route         
             L - Vlink Route
--------------------------------------------------------------------------------
 FIB Table:                                                                     
 Total number of Routes : 5                                                     
                                                                                
Destination/Mask   Nexthop         Flag  TimeStamp     Interface      TunnelID  
192.168.150.111/32 127.0.0.1       HU    t[117]        InLoop0        0x0       
127.0.0.1/32       127.0.0.1       HU    t[54]         InLoop0        0x0       
127.0.0.0/8        127.0.0.1       U     t[54]         InLoop0        0x0       
192.168.150.0/24   192.168.150.111 U     t[117]        MEth0/0/1      0x0       
0.0.0.0/0          192.168.150.1   GSU   t[117]        MEth0/0/1      0x0

# Display information starting from the line that contains 169.254.0.0

<HUAWEI> display fib | begin 10.254.0.0

Destination/Mask  Nexthop   Flag  TimeStamp  Interface   TunnelID

10.254.0.0/16    10.2.1.1   U     t[0]       Vlanif10     0x0

10.12.0.0/16     10.2.1.1   U     t[0]       Vlanif10     0x0

127.0.0.0/8      127.0.0.1  U     t[0]       InLoop0      0x0

# Display all lines that contain Vlanif10.

<HUAWEI> display fib | include Vlanif10

Destination/Mask  Nexthop   Flag  TimeStamp  Interface  TunnelID

10.254.0.0/16    10.2.1.1   U     t[0]       Vlanif10    0x0

10.12.0.0/16     10.2.1.1   U     t[0]       Vlanif10    0x0

# Display all lines that do not include 192.168.150.0.

<HUAWEI> display fib | exclude 192.168.150.0
                                                                                
Destination/Mask   Nexthop         Flag  TimeStamp     Interface      TunnelID  
192.168.150.111/32 127.0.0.1       HU    t[117]        InLoop0        0x0       
127.0.0.1/32       127.0.0.1       HU    t[54]         InLoop0        0x0       
127.0.0.0/8        127.0.0.1       U     t[54]         InLoop0        0x0       
0.0.0.0/0          192.168.150.1   GSU   t[117]        MEth0/0/1      0x0

**Table 1** Description of the display fib command output
Item	Description
Route Flags	Flag of a route.
Destination/Mask	Destination address or mask length.
Nexthop	Next hop.
Flag	Current flag, which is the combination of G, H, U, S, D, B and T. G (gateway route): indicates that the next hop is a gateway. H (host route): indicates that the route is a host route. U (available route): indicates that the route status is Up. S (static route): indicates that the route is manually configured. D (dynamic route): indicates that the route is generated based on the routing algorithm. B (blackhole route): indicates that the next hop is a null interface. L: indicates a Vlink route.
TimeStamp	Timestamp, which indicates the time equal to FIB entry generation time minus system startup time.
Interface	Outbound interface to the destination address.
TunnelID	Index of a forwarding entry. It is used in packet forwarding between the upstream and downstream boards. If the value is not 0x0, packets matching the entry are forwarded through the MPLS tunnel. If the value is 0x0, packets matching the entry are not forwarded through the MPLS tunnel.

# Display detailed information about the FIB table.

<HUAWEI> display fib verbose

Route Flags: G - Gateway Route, H - Host Route,    U - Up Route                 
             S - Static Route,  D - Dynamic Route, B - Black Hole Route         
             L - Vlink Route
------------------------------------------------------------------------------  
 FIB Table:                                                                     
 Total number of Routes : 3                                                     
                                                                                
 Destination: 127.0.0.1           Mask     : 255.255.255.255                    
 Nexthop    : 127.0.0.1           OutIf    : InLoopBack0                        
 LocalAddr  : 127.0.0.1           LocalMask: 0.0.0.0                            
 Flags      : HU                  Age      : 354280sec                          
 ATIndex    : 0                   Slot     : 0                                  
 LspFwdFlag : 0                   LspToken : 0x0                                
 InLabel    : NULL                OriginAs : 0                                  
 BGPNextHop : 0.0.0.0             PeerAs   : 0                                  
 QosInfo    : 0x0                 OriginQos: 0x0                                
 NexthopBak : 0.0.0.0             OutIfBak : [No Intf]                          
 LspTokenBak: 0x0                 InLabelBak : NULL                             
 LspToken_ForInLabelBak : 0x0                                                   
 EntryRefCount : 0                                                              
 VlanId : 0x0                                                                   
 BgpKey : 0                                                                     
 BgpKeyBak : 0                                                                  
 LspType         : 0              Label_ForLspTokenBak   : 0                    
 MplsMtu         : 0              Gateway_ForLspTokenBak : 0.0.0.0              
 NextToken       : 0x0            IfIndex_ForLspTokenBak : 0                    
 Label_NextToken : 0              Label : 0                                     
 LspBfdState     : 0                                                            
                                                                                
 Destination: 127.255.255.255     Mask     : 255.255.255.255                    
 Nexthop    : 127.0.0.1           OutIf    : InLoopBack0                        
 LocalAddr  : 127.0.0.1           LocalMask: 0.0.0.0                            
 Flags      : HU                  Age      : 354280sec                          
 ATIndex    : 0                   Slot     : 0                                  
 LspFwdFlag : 0                   LspToken : 0x0                                
 InLabel    : NULL                OriginAs : 0                                  
 BGPNextHop : 0.0.0.0             PeerAs   : 0                                  
 QosInfo    : 0x0                 OriginQos: 0x0                                
 NexthopBak : 0.0.0.0             OutIfBak : [No Intf]                          
 LspTokenBak: 0x0                 InLabelBak : NULL                             
 LspToken_ForInLabelBak : 0x0                                                   
 EntryRefCount : 0                                                              
 VlanId : 0x0                                                                   
 BgpKey : 0                                                                     
 BgpKeyBak : 0                                                                  
 LspType         : 0              Label_ForLspTokenBak   : 0                    
 MplsMtu         : 0              Gateway_ForLspTokenBak : 0.0.0.0              
 NextToken       : 0x0            IfIndex_ForLspTokenBak : 0                    
 Label_NextToken : 0              Label : 0                                     
 LspBfdState     : 0                                                            
                                                                                
 Destination: 255.255.255.255     Mask     : 255.255.255.255                    
 Nexthop    : 127.0.0.1           OutIf    : InLoopBack0                        
 LocalAddr  : 127.0.0.1           LocalMask: 0.0.0.0                            
 Flags      : HU                  Age      : 354280sec                          
 ATIndex    : 0                   Slot     : 0                                  
 LspFwdFlag : 0                   LspToken : 0x0                                
 InLabel    : NULL                OriginAs : 0                                  
 BGPNextHop : 0.0.0.0             PeerAs   : 0                                  
 QosInfo    : 0x0                 OriginQos: 0x0                                
 NexthopBak : 0.0.0.0             OutIfBak : [No Intf]                          
 LspTokenBak: 0x0                 InLabelBak : NULL                             
 LspToken_ForInLabelBak : 0x0                                                   
 EntryRefCount : 0                                                              
 VlanId : 0x0                                                                   
 BgpKey : 0                                                                     
 BgpKeyBak : 0                                                                  
 LspType         : 0              Label_ForLspTokenBak   : 0                    
 MplsMtu         : 0              Gateway_ForLspTokenBak : 0.0.0.0              
 NextToken       : 0x0            IfIndex_ForLspTokenBak : 0                    
 Label_NextToken : 0              Label : 0                                     
 LspBfdState     : 0

**Table 2** Description of the display fib verbose command output
Item	Description
Destination	Destination address.
Mask	Mask.
Nexthop	Next hop.
OutIf	Outbound interface.
LocalAddr	Local IP address.
LocalMask	Mask of the local IP address.
Flags	Current flag, which is the combination of G, H, U, S, D, and B. G (gateway route): indicates that the next hop is a gateway. H (host route): indicates that the route is a host route. U (available route): indicates that the route status is Up. S (static route): indicates that the route is manually configured. D (dynamic route): indicates that the route is generated based on the routing algorithm. B (blackhole route): indicates that the next hop is a null interface. L: indicates a Vlink route.
Age	Lifetime of a route, in seconds.
ATIndex	Index of the virtual link connecting the local end and the gateway.
Slot	Slot ID of the outbound interface.
LspFwdFlag	Forwarding flag of an LSP.
LspToken	Forwarding ID of an LSP.
InLabel	Inner tag of a VPN LSP.
OriginAs	Original AS number.
BGPNextHop	Address of the BGP next hop.
PeerAs	Neighbor AS number.
QosInfo	QoS information.
OriginQos	Original QoS information.
NexthopBak	Backup of the next hop.
OutIfBak	Backup of the outbound interface.
VlanId	VLAN ID.
BgpKey	Key value of the BGP route.
BgpKeyBak	Backup key value of the BGP route.