This command sets the maximum transmission unit (MTU) size, in bytes, of IPv6 packets on an interface or range of interfaces. This command replaces the default or link MTU with a new MTU value.
Note: The default MTU value for a tunnel interface is 1480. You cannot change this value.
| Default | 0 or link speed (MTU value (1500)) |
| Format | ipv6 mtu 1280-1500 |
| Mode | Interface Config |