The ipv6 pathmtu command configures a PMTU for an IPv6 address.
The undo ipv6 pathmtu command deletes the PMTU of an IPv6 address.
By default, no PMTU is configured for an IPv6 address.
ipv6 pathmtu ipv6-address [ vpn6-instance vpn6-instance-name ] [ path-mtu ]
undo ipv6 pathmtu ipv6-address [ vpn6-instance vpn6-instance-name ]
| Parameter | Description | Value |
|---|---|---|
| ipv6-address | Specifies an IPv6 address. It can be a unicast, multicast, or anycast address, but cannot be a link-local address. |
The value is in the format of X:X::X:X. |
| vpn6-instance vpn6-instance-name | Specifies a VPN instance. |
The value is a string of 1 to 31 case-sensitive characters. |
| path-mtu | Specifies a path maximum transmission unit. | The value is an integer ranging from 1280 to 10000, in bytes.The default value is 1500. |
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 ipv6 pathmtu ipv6-address [ vpn-instance vpn-instance-name ] [ path-mtu ] command.
# Configure the PMTU of the IPv6 address 2000::1 of the VPN instance vpn6 as 1600 bytes.
<sysname> system-view
[sysname] ip vpn-instance vpn6
[sysname-vpn-instance-vpn6] ipv6-family
[sysname-vpn-instance-vpn6-af-ipv6] quit
[sysname-vpn-instance-vpn6] quit
[sysname] ipv6 pathmtu 2000::1 vpn6-instance vpn6 1600