ipv6 mtu

The no ipv6 enable command disables IPv6 routing on an interface that has been enabled with the ipv6 enable command, but it does not disable IPv6 processing on an interface that is configured with an explicit IPv6 address.

Example

This example enables IPv6 processing on VLAN 7. Note that a link‐local address has been automatically configured.

C3(su)->router(Config-if(Vlan 7))# ipv6 enable

C3(su)->router>show ipv6 interface vlan 7

Vlan 7

Administrative Mode

Enabled

Vlan 7

IPv6 Routing Operational Mode

Enabled

IPv6 is

 

Enabled

IPv6 Prefix is

FE80::211:88FF:FE55:4A7F/128

Routing Mode

Enabled

Interface Maximum Transmit Unit

1500

Router Duplicate Address Detection Transmits

1

Router Advertisement NS Interval

0

Router Lifetime Interval

1800

Router Advertisement Reachable Time

0

Router Advertisement Interval

600

Router Advertisement Managed Config Flag

Disabled

Router Advertisement Other Config Flag

Disabled

Router Advertisement Suppress Flag

Disabled

ipv6 mtu

This command configures the maximum transmission unit (MTU) size of IPv6 packets that can be sent on an interface.

Syntax

ipv6 mtu bytes no ipv6 mtu

Parameters

bytes

Specifies the MTU value in bytes. The value can range from 1280 to 1500

 

bytes. The MTU cannot be larger than the value supported by the

 

underlying interface.

 

 

Defaults

1480 bytes

Mode

Router interface configuration: C3(su)‐>router(Config‐if(Vlan 1))#

Usage

The maximum transmission unit is the largest possible unit of data that can be sent on a given physical medium. Use this command to set the MTU for an IPv6 interface. The no form of this command resets the MTU to the default value of 1480 bytes.

Use the show ipv6 interface to display the current setting for this interface.

22-12 IPv6 Configuration

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Enterasys Networks 9034313-07 manual Ipv6 mtu, Bytes