display ipv6 fib slot

Function

The display ipv6 fib slot command displays IPv6 FIB information on a specified interface board.

Format

display ipv6 fib slot slotid [ vpn-instance vpnname ] [ verbose ]

display ipv6 fib slot slotid [ vpn-instance vpnname ] dstip6 [ masklen ] [ verbose ]

Parameters

Parameter	Description	Value
slotid	Specifies a slot ID.	The maximum number of IPv6 FIB entries that can be displayed using this command depends on board specifications. Given that the maximum number of IPv6 FIB entries displayed is within board specifications, the number of IPv6 FIB entries displayed on the interface board on each slot is the same.
vpn-instance vpnname	Displays private IPv6 FIB statistics based on the VPN. If vpn-instance vpn-name is not set, public IPv6 FIB entries are displayed.	The value is a string of 1 to 31 case-sensitive characters.
verbose	Displays detailed information about FIB entries. If verbose is not set, brief information about IPv6 FIB entries is displayed.	-
dstip6	Displays IPv6 FIB entries based on the destination IP address. If no destination IP address is configured, IPv6 FIB entries of all destination IP addresses are displayed.	The value is an IPv6 address.
masklen	Specifies the subnet mask length of the destination IP address. If masklen is not set, the IPv6 FIB entries of all subnet masks are displayed.	The value is an integer ranging from 1 to 128..

Views

All views

Default Level

1: Monitoring level

Task Name and Operations

Task Name	Operations
forwarding	read

Usage Guidelines

Usage Scenario

The display ipv6 fib slot command can be used to troubleshoot a routing module.It output lists FIB entries line by line. Each line represents a route.

Running the display ipv6 fib slot verbose command displays detailed information about FIB entries.

Example

The actual command output varies according to the device. The command output here is only an example.

# Display brief information about the IPv6 FIB on the interface board in slot 1.

<HUAWEI> display ipv6 fib slot 1
Route Flags:G - Gateway Route, H - Host Route,    U - Up Route                  
            S - Static Route,  D - Dynamic Route, B - Black Hole Route          
            O - Other Route                                                     
--------------------------------------------------------------------------------
 IPv6 FIB Table:                                                                
 Total number of Routes : 3                                                    
 Total number of Other Routes : 0                                               
                                                                                
Destination:  2001:db8:1::1                        PrefixLength : 64            
Nexthop    :  2001:db8:2::1                        Flag         : U             
Interface  :  GigabitEthernet0/1/0                 Tunnel ID    : 0x0           
TimeStamp  :  2015/09/21 12:26:27                                               
Destination:  2001:db8:2::1                        PrefixLength : 128           
Nexthop    :  2001:db8:4::1                        Flag         : HU            
Interface  :  GigabitEthernet0/1/0                 Tunnel ID    : 0x0           
TimeStamp  :  2015/09/21 12:26:27                                               
Destination:  2001:db8:3::1                        PrefixLength : 128           
Nexthop    :  2001:db8:5::1                        Flag         : GSU           
Interface  :  GigabitEthernet0/1/0                 Tunnel ID    : 0x0           
TimeStamp  :  2015/09/21 12:26:27                                               
Destination:  2001:db8:6::1                        PrefixLength : 64            
Nexthop    :  2001:db8:7::1                         Flag         : U

# Display detailed information about the IPv6 FIB on the interface board in slot 1.

<HUAWEI> display ipv6 fib slot 1 verbose
Route Flags:G - Gateway Route, H - Host Route,    U - Up Route
            S - Static Route,  D - Dynamic Route, B - Black Hole Route
            O - Other Route
--------------------------------------------------------------------------------
 IPv6 FIB Table:
 Total number of Routes : 3
 Total number of Other Routes : 0

Destination      :1234:11::                                 PrefixLength :64
Nexthop          :1234:11::1                                Flag         :U
Interface        :GigabitEthernet0/1/3.1                   Tunnel ID    :0x0
TimeStamp        :2021/08/23 19:24:31                       ATIndex      :0x0
Slot             :1                                         InLabel      :0x0(0)
IP6Token         :0x0                                       VlanId       :1
IndirectID       :0x1000271                                 IndirectIDNum:1
NexthopBak       :::                                        IP6TokenBak  :0x0
IfIndexBak       :[No Intf]                                 Tunnel ID Bak:0x0
IndirectIDBak    :0x0                                       IndirectIDBakNum:0
InLabelBak       :0x0(0)                                    VPNFRR_LspTokenBak:0x0
VPNFRR_NexthopBak:::                                        UnType      :0
VPNFRR_OutIfBak  :[No Intf]                                 OriginAs    :0
BgpNexthop       :::                                        PeerAs      :0
ProcTime         :2021/08/23 14:26:36                       SmoothTime  :2021/08/23 19:24:31
VNI              :0

Destination      :100:1::                                   PrefixLength :64
Nexthop          :100:1::1                                  Flag         :U
Interface        :GigabitEthernet0/1/1                      Tunnel ID    :0x0
TimeStamp        :2021/08/23 19:24:31                       ATIndex      :0x0
Slot             :1                                         InLabel      :0x0(0)
IP6Token         :0x0                                       VlanId       :0
IndirectID       :0x1000270                                 IndirectIDNum:1
NexthopBak       :::                                        IP6TokenBak  :0x0
IfIndexBak       :[No Intf]                                 Tunnel ID Bak:0x0
IndirectIDBak    :0x0                                       IndirectIDBakNum:0
InLabelBak       :0x0(0)                                    VPNFRR_LspTokenBak:0x0
VPNFRR_NexthopBak:::                                        UnType      :0
VPNFRR_OutIfBak  :[No Intf]                                 OriginAs    :0
BgpNexthop       :::                                        PeerAs      :0
ProcTime         :2021/08/23 14:26:36                       SmoothTime  :2021/08/23 19:24:31
VNI              :0

Destination      :1234:11::1                                PrefixLength :128
Nexthop          :::1                                       Flag         :HU
Interface        :GigabitEthernet0/1/3.1                   Tunnel ID    :0x0
TimeStamp        :2021/08/23 19:24:31                       ATIndex      :0xFFFFFFFF
Slot             :1                                         InLabel      :0x0(0)
IP6Token         :0x0                                       VlanId       :1
IndirectID       :0x100004B                                 IndirectIDNum:1
NexthopBak       :::                                        IP6TokenBak  :0x0
IfIndexBak       :[No Intf]                                 Tunnel ID Bak:0x0
IndirectIDBak    :0x0                                       IndirectIDBakNum:0
InLabelBak       :0x0(0)                                    VPNFRR_LspTokenBak:0x0
VPNFRR_NexthopBak:::                                        UnType      :0
VPNFRR_OutIfBak  :[No Intf]                                 OriginAs    :0
BgpNexthop       :::                                        PeerAs      :0
ProcTime         :2021/08/23 14:26:36                       SmoothTime  :2021/08/23 19:24:31
VNI              :0

**Table 1** Description of the **display ipv6 fib slot** command output
Item	Description
slot	slot number of the interface board where the outbound resides.
Route Flags	Current flag, a combination of G, H, U, S, D, and B. G: indicates that the next hop is a gateway. H: indicates that the next hop is a host. U: indicates that the route status is Up. S: indicates a static route. D: indicates a dynamic route. B: indicates the black hole routes. That is, the next hop is a null interface. 0: indicates other routes.
IPv6 FIB Table	Information about IPv6 FIB entries.
Total number of Routes	Total number of FIB entries.
Total number of Other Routes	Display the total number of other routes.
PrefixLength	Prefix length.
Nexthop	Next hop that forwards packets to the destination address.
Flag	Route flag.
Interface	Outbound interface.
Tunnel ID	Tunnel ID (It is not 0 if packets need to be forwarded through an MPLS network to the next hop. It is 0 if packets are forwarded using IP.).
Tunnel ID Bak	Backup tunnel ID.
TimeStamp	Timestamp.
Destination	Destination IPv6 address.
ATIndex	Index of the virtual connection between the local device and the gateway.
InLabel	Private network label.
IP6Token	ND entry index allocated to the adaptation module if the next hop of the route is a gateway device (the value of this field is 0 if the next hop of the route is not a gateway device).
VlanId	VLAN ID.
IndirectID	Keyword of the indirect next hop, which is generated by the system. If route recursion is not performed, the value is 0x0.
NexthopBak	Backup next hop.
IP6TokenBak	Backup ND token.
IfIndexBak	Backup outbound interface.
IndirectIDBak	Keyword of the backup indirect next hop, which is generated by the system. If route recursion is not performed, the value is 0x0.
InLabelBak	Backup inner private network label.
UnType	Route of the UNR type.
VPNFRR_OutIfBak	Backup outbound interface for VPN FRR.
OriginAs	Originating AS number.
BgpNexthop	BGP next hop.
PeerAs	Peer AS number (unavailable in the current version).
ProcTime	Route update time taken during normal service delivery.
SmoothTime	Route update time taken during FIB data smoothing.
VNI	VXLAN network identifier.
IndirectIDNum	The number of indirect next hop.
IndirectIDBakNum	The number of backup indirect next hop.
VPNFRR_LspTokenBak	Backup LSP ID for VPN FRR.
VPNFRR_NexthopBak	Backup next hop for VPN FRR.