Setting a static path MTU for an IPv6 address
You can set a static path MTU for an IPv6 address. Before sending a packet to the IPv6 address, the device compares the MTU of the output interface with the static path MTU. If the packet exceeds the smaller one of the two values, the device fragments the packet according to the smaller value. After sending the fragmented packets, the device dynamically finds the path MTU to a destination host (see "IPv6 path MTU discovery").
To set a static path MTU for a destination IPv6 address:
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Set a static path MTU for a destination IPv6 address. | ipv6 pathmtu [ vpn-instance vpn-instance-name ] ipv6-address value | By default, no path MTU is set for any IPv6 address. |