display ospfv3 interface

Function

The display ospfv3 interface command displays an OSPFv3 interface.

Format

display ospfv3 [ process-id ] interface [ area { area-id | area-id } ] [ interface-type interface-number | interface-name ]

Parameters

Parameter	Description	Value
process-id	Specifies an OSPFv3 process ID.	The value is an integer ranging from 1 to 4294967295.
area area-id	Specifies an OSPFv3 area ID.	The value can be a decimal integer or in the IPv4 address format. The integer ranges from 0 to 4294967295.
interface-type	Specifies the type of an interface. If no interface is specified, information of all OSPFv3 interfaces is displayed.	-
interface-number	Specifies the number of an interface. If no interface is specified, information of all OSPFv3 interfaces is displayed.	-

Views

All views

Default Level

1: Monitoring level

Task Name and Operations

Task Name	Operations
ospf	read

Usage Guidelines

Usage Scenario

The display ospfv3 interface command output displays the configuration and operating status of OSPFv3, which facilitates fault location and configuration verification.

Example

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

# Display the OSPFv3 GigabitEthernet 0/1/0.

<HUAWEI> display ospfv3 interface gigabitethernet 0/1/0
GE0/1/0 is up, line protocol is up
  Interface ID 0x102
  IPv6 Prefixes
    FE80::2E0:FFF:FE4E:F101 (Link-Local Address)
    2001:DB8::1/64
  OSPFv3 Process (1), Area 0.0.0.1, Instance ID 0
    Router ID 1.1.1.1, Network Type BROADCAST, Cost: 1
    Effective cost : 1, enabled by OSPFv3 Protocol
    Transmit Delay is 1 sec, State Waiting, Priority 1
    No designated router on this link
    No backup designated router on this link
    Timer interval configured, Hello 10, Dead 40, Wait 40, Retransmit 5
       Hello due in 00:00:02
    Neighbor Count is 0, Adjacent neighbor count is 0
    Interface Physical BandwidthHigh 0, BandwidthLow 100000000
    Authentication : HMAC-SHA256
      Higher Order Sequence Number : 0
      Lower Order Sequence Number  : 58
    Suppress flapping peer: enable(flapping-count: 0, threshold: 20)
    Link quality adjust cost: NO, link quality: 0x0(GOOD)

**Table 1** Description of the **display ospfv3 interface** command output
Item	Description
line protocol	Link Protocol.
Interface ID	Interface ID.
Interface Physical BandwidthHigh	Higher order 32-bit of the interface bandwidth value.
IPv6 Prefixes	IPv6 prefixes.
OSPFv3 Process	OSPFv3 process ID.
Area	Area to which the interface belongs.
Instance ID	ID of the instance to which the interface belongs.
Router ID	Router ID.
Network Type	Network type of the interface, Point-to-Point or broadcast.
Effective cost	Valid cost value: OSPFv3 Protocol. BGP-IGP. Tunnel. Suppress flapping peer. Cost-fallback. Peer hold-max-cost. BFD DOWN COST.
Transmit Delay	Transmission delay.
State	State of the interface: Down: The status of the interface is Down. If an interface is Down, the interface is unavailable and cannot be used to transmit traffic. Loopback: The interface connecting to the network on the router is in the Loopback state. The loopback interface cannot be used to transmit data but can collect interface information through ICMP ping operations or bit error detection. Waiting: The router is determining the DR and BDR on the network. The DR or BDR election mechanism is not implemented until the waiting period ends. This prevents unnecessary changes in the DR and BDR roles. P-2-P: The interface is connected to the P2P network or a virtual link. DROther: The router itself is not elected as the BDR. Instead, another router connecting to the broadcast network or NBMA network is elected as the DR. The router starts to set up adjacency with the DR and BDR (if existing). BDR: The router functions as the BDR on the network, and will turn into a DR when the current DR fails. The router sets up adjacency with other routers that access the network. DR: The router functions as the DR on the network. The router sets up adjacency with other routers that access the network.
Priority	Priority of the interface.
No designated router on this link	No designated router (DR) is on the link.
No backup designated router on this link	No backup designated router (BDR) is on the link.
Timer interval configured	Configured interval: Hello: Interval at which Hello packets are sent. Dead: Interval of the Dead timer. Wait: Interval of the Wait timer. Retransmit: Retransmission interval.
Neighbor Count	Number of neighbors.
Adjacent neighbor count	Number of adjacencies.
BandwidthLow	Lower order 32-bit of the interface bandwidth value.
Authentication	HMAC-SHA256 authentication which can be configured using the ospf authentication-mode command.
Higher Order Sequence Number	Higher order 32-bit of the sequence number of the sent packet.
Lower Order Sequence Number	Lower order 32-bit of the sequence number of the sent packet.
Suppress flapping peer	Status of OSPFv3 neighbor relationship flapping suppression: enable: OSPFv3 neighbor relationship flapping suppression is enabled. flapping-count: number of valid flapping_events. If the interval between two successive neighbor status changes from Full to a non-Full state is shorter than detecting-interval, a valid flapping_event is recorded, and the flapping_count increases by 1. To change detecting-interval, run the ospfv3 suppress-flapping peer detecting-interval detecting-interval command. threshold: flapping suppression threshold. When the flapping_count reaches or exceeds threshold, flapping suppression takes effect. To configure the threshold, run the ospfv3 suppress-flapping peer threshold threshold command. disable: OSPFv3 neighbor relationship flapping suppression is disabled. In this case, the following information is displayed, without flapping-count or threshold: Suppress flapping peer: disable. hold-down: OSPFv3 neighbor relationship flapping suppression works in Hold-down mode. In this case, an example of the displayed information is as follows: Suppress flapping peer: hold-down(start: 2016-01-02 09:58:41, remain-interval: 476 sec). start: time when the flapping suppression started. remain-interval: remaining time of the flapping suppression. In the flapping suppression state, remain-interval is reset each time when the device detects a valid neighbor flapping event. hold-max-cost: OSPFv3 neighbor relationship flapping suppression works in Hold-max-cost mode. In this case, an example of the displayed information is as follows: Suppress flapping peer: hold-max-cost(start: 2016-01-02 09:58:41, remain-interval: 476 sec).
Link quality adjust cost	Whether bit-error-triggered interface cost adjustment is effective: NO. YES. The prerequisites for the function to take effect are as follows: The cost specified in the ospfv3 link-quality low incr-cost cost command is not 0. The link quality is 0x4 (Low). For details, see the description of the Link quality field. OSPFv3 neighbor relationship flapping suppression is not in hold-max-cost state. For details, see the description of the Suppress flapping peer field.
Link quality	Link quality: 0x0 (Good). 0x1 (High). 0x2 (Medium). 0x4 (Low).
Cost	Cost of the interface.