display ipv6 neighbors (upgrade-compatible command)

Function

The display ipv6 neighbors command displays neighbor entries.

Format

display ipv6 neighbors vpn6-instance vpn6-instance-name

Parameters

Parameter	Description	Value
vpn6-instance vpn6-instance-name	Displays neighbor entries of a specified VPN instance.	The value is a string of 1 to 31 case-sensitive characters.

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

This command is available to aid upgrade compatibility. To run this command, you must enter the complete command.

After the upgrade, it is replaced by the display ipv6 neighbors vpn-instance vpn-instance-name command.

Example

# Display neighbor entries of a specified VPN instance.

<sysname> display ipv6 neighbors vpn6-instance vpn1

--------------------------------------------------------
IPv6 Address : 3003::2
Link-layer   : 00e0-fc89-fe6e            State : STALE
Interface    : GE0/0/0                   Age   : 00h19m12s
VLAN         : -                         CEVLAN: -
VPN name     : vpn1                      Is Router: TRUE
Secure FLAG  : UN-SECURE

IPv6 Address : FE80::2E0:FCFF:FE89:FE6E
Link-layer   : 00e0-fc89-fe6e            State : STALE
Interface    : GE0/0/0                   Age   : 00h19m12s
VLAN         : -                         CEVLAN: -
VPN name     : vpn1                      Is Router: TRUE
Secure FLAG  : UN-SECURE
---------------------------------------------------------
Total: 2       Dynamic: 2       Static: 0

**Table 1** Description of the **display ipv6 neighbors** command output
Item	Description
IPv6 Address	IPv6 address of a neighbor
Link-layer	Link layer address (MAC address) of a neighbor
State	Neighbor status INCMP: The neighbor is unreachable. In this state, the device is parsing the neighbor's link layer address. If the device parses the address successfully, the device sets the neighbor entry status to REACH. REACH: The neighbor is reachable. In this state, the neighbor is reachable within a specified period of time (30s by default). If the neighbor entry is not used when the specified period of time elapses, the neighbor entry enters the STALE state. STALE: Whether the neighbor is reachable is unknown. In this state, the neighbor entry is not used within a specified period of time (30s by default). The device does not detect whether the neighbor is reachable unless the device wants to send packets to the neighbor. DELAY: Whether the neighbor is reachable is unknown. In this state, the device has already sent packets to the neighbor. If the device does not receive any response from the neighbor, the device sets the neighbor entry status to PROBE. PROBE: Whether the neighbor is reachable is unknown. In this state, the device has already sent a request packet to the neighbor to detect whether the neighbor is reachable. If the device receives a response within a specified period of time, the device sets the neighbor entry status to REACH. Otherwise, the device sets the neighbor entry status to INCMP.
Interface	Name of the interface to which a specific neighbor belongs
Age	Time when a neighbor entry was created If the neighbor entry is a static one, a hyphen (-) is displayed. If the neighbor entry is a dynamic one, the length of time since the neighbor became reachable last time is displayed. If the neighbor remains unreachable, a number sign (#) is displayed.
VLAN	VLAN ID of a neighbor
CEVLAN	CE-VLAN ID of a neighbor
VPN name	VPN instance name of a neighbor
Is Router	Whether the NA message sent by a neighbor carries an R flag TRUE is displayed if the NA message carries an R flag. The neighbor is a routing device in this case. FALSE is displayed if the NA message does not carry an R flag. The neighbor may be a PC or a routing device that has sent an NA message without an R flag.
Secure FLAG	Whether the neighbor entry is secure SECURE is displayed if the neighbor entry is a static one or the security function is enabled for the neighbor. UN-SECURE is displayed if the security function is not enabled for the neighbor and the neighbor entry is a dynamic one.
Total	Total number of neighbor entries
Dynamic	Number of dynamic neighbor entries
Static	Number of static neighbor entries