display ipv6 pathmtu (upgrade-compatible command)

Function

The display ipv6 pathmtu command displays IPv6 PMTU entries.

Format

display ipv6 pathmtu [ vpn6-instance vpn6-instance-name ] ipv6-address

display ipv6 pathmtu [ vpn6-instance vpn6-instance-name ] { all | dynamic | static }

Parameters

Parameter	Description	Value
vpn6-instance vpn6-instance-name	Displays PMTU entries of a specified VPN instance.	The value is a string of 1 to 31 case-sensitive characters.
ipv6-address	Displays PMTU entries of a specified IPv6 address.	The value consists of 128 octets, which are classified into 8 groups. Each group contains 4 hexadecimal numbers in the format X:X:X:X:X:X:X:X.
all	Displays all PMTU entries.	-
dynamic	Displays all dynamic PMTU entries.	-
static	Displays all static PMTU entries.	-

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 following commands:

display ipv6 pathmtu [ vpn-instance vpn-instance-name ] ipv6-address
display ipv6 pathmtu [ vpn-instance vpn-instance-name ] { all | dynamic | static }

Example

# Display PMTU entries of the VPN instance vpn1.

<sysname> display ipv6 pathmtu vpn6-instance vpn1 all

IPv6 Destination Address             ZoneID   PathMTU    LifeTime(M)   Type
2000::2                              1        1500       10            Dynamic
2000::1                              1        1600       -             Static
------------------------------------------------------------------------------
Total: 2      Dynamic: 1     Static: 1

IPv6 Destination Address            ZoneID  PathMTU   LifeTime(M)  Type    FF
2000::2                             1       1500      10           Dynamic YES
2000::1                             1       1600      -            Static  NO
------------------------------------------------------------------------------
Total: 2      Dynamic: 1     Static: 1

**Table 1** Description of the **display ipv6 pathmtu** command output
Item	Description
IPv6 Destination Address	IPv6 destination host address.
ZoneID	Address zone.
PathMTU	PMTU of an IPv6 address.
LifeTime(M)	Remaining lifetime of a neighbor entry, in minutes (the interval for refreshing the lifetime is 1 minute) ("-" is displayed in the case of a static PMTU entry).
Type	Entry type Dynamic: a dynamic entry. Static: a static entry (configured using the CLI).
FF	Fragment flag, indicating whether the packets on the path must carry fragment headers Y: Packets on the path must carry fragment headers. N: Packets on the path do not need to carry fragment headers.
Total	The number of total PMTU entry.
Dynamic	The number of dynamic PMTU entry.
Static	The number of static PMTU entry.