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Ipv6 mtu – LevelOne GTL-2690 User Manual

Page 695

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IP Interface Commands

41-18

41

Example
The following shows the default gateway configured for this device:

Related Commands

show ip redirects (41-5)

ipv6 mtu

This command sets the size of the maximum transmission unit (MTU) for IPv6
packets sent on an interface. Use the no form to restore the default setting.

Syntax

ipv6 mtu size
no ipv6 mtu

size - Specifies the MTU size. (Range: 1280-65535 bytes)

Default Setting

1500 bytes

Command Mode

Interface Configuration (VLAN)

Command Usage

• If a non-default value is configured, an MTU option is included in the router

advertisements sent from this device. This option is provided to ensure that all
nodes on a link use the same MTU value in cases where the link MTU is not
otherwise well known.

• IPv6 routers do not fragment IPv6 packets forwarded from other routers.

However, traffic originating from an end-station connected to an IPv6 router
may be fragmented.

• All devices on the same physical medium must use the same MTU in order to

operate correctly.

• IPv6 must be enabled on an interface before the MTU can be set.

Example
The following example sets the MTU for VLAN 1 to 1280 bytes:

Related Commands

show ipv6 mtu (41-19)
jumbo frame (23-9)

Console#show ipv6 default-gateway
ipv6 default gateway: FE80::269:3EF9:FE19:6780
Console#

Console(config)#

interface vlan 1

Console(config-if)#ipv6 mtu 1280
Console(config-if)#