Reference Guide

Command
Modes
INTERFACE
Command
History
Version
8.3.19.0
Introduced on the S4820T.
Version 8.3.11.1 Introduced on the Z9000.
Version 8.3.7.1 Introduced on the S4810.
Version 8.3.1.0 Introduced
Usage
Information
The ip nd mtu command sets the value advertised to routers. It does not set the
actual MTU rate. For example, if
ip nd mtu is set to 1280, the interface still passes
1500-byte packets.
The mtu command sets the actual frame size passed and can be larger than the
advertised MTU. If the mtu setting is larger than the
ip nd mtu command, an
error message is sent, but the configuration is accepted. The error message is: %
Error: nd ra mtu is greater than link mtu, link mtu will be
used.
Related
Commands
mtu – sets the maximum link MTU (frame size) for an Ethernet interface.
ipv6 neighbor
Configure a static entry in the IPv6 neighbor discovery.
Syntax
ipv6 neighbor {ipv6-address} {interface interface}
{hardware_address}
To remove a static IPv6 entry from the IPv6 neighbor discovery, use the no ipv6
neighbor {ipv6-address} {interface interface} command.
Parameters
ipv6-address Enter the IPv6 address of the neighbor in the x:x:x:x::x
format.
NOTE: The :: notation specifies successive hexadecimal
fields of zero.
interface
interface
Enter the keyword interface then the interface type and
slot/port or number information:
• For a Fast Ethernet interface, enter the keyword
fastEthernet then the slot/port information.
• For a Port Channel interface, enter the keywords port-
channel
then a number.
Neighbor Discovery Protocol (NDP)
1379