Configuration Guide Configuring IPv6
Optional.
If minimum MTU of the network path is less than the interface IPv6 MTU, to reduce additional overhead caused by
discarded packets, this configuration can be used to adjust the interface MTU value.
Verification
Run the show ipv6 interface command to check whether the configuration is correct.
Capture the locally sent IPv6 packets of which the length exceeds the PMTU. The packet capture result shows that
the IPv6 packet is allocated based on the PMTU.
Related Commands
Configuring the IPv6 MTU of an Interface
bytes: Indicates the MTU of an IPv6 packet, ranging from 1280 to 1500. The unit is byte.
Interface configuration mode
Configuration
Example
Configuring the IPv6 MTU of an Interface
Change the IPv6 MTU of interface GigabitEthernet 0/0 to 1,300.
Ruijie(config-if-GigabitEthernet 0/0)#ipv6 mtu 1300
Run the show ipv6 interface command to check whether the configuration takes effect.
Ruijie(config-if-GigabitEthernet 0/0)#show ipv6 interface
interface GigabitEthernet 0/ is Down, ifindex: 1, vrf_id 0
address(es):
Mac Address: 00:d0:f8:22:33:47
INET6: FE80::2D0:F8FF:FE22:3347 [ TENTATIVE ], subnet is FE80::/64
INET6: 1020::1 [ TENTATIVE ], subnet is 1020::/64
INET6: 1023::1 [ TENTATIVE ], subnet is 1023::/64
Joined group address(es):
ND advertised reachable time is 0 milliseconds
ND router advertisements are sent every 200 seconds<160--240>
ND router advertisements live for 1800 seconds
Configuration Effect
RFC 5095 abolished the Type 0 routing header. Ruijie devices do not support the Type 0 routing header by default. The
administrator can run the ipv6 source-route command to in global configuration mode to enable IPv6 source routing.