Users Guide

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 conguration 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
Congure a static entry in the IPv6 neighbor discovery.
S5000
Syntax
ipv6 neighbor [vrf vrf-name] {ipv6-address} {interface interface}
{hardware_address}
To remove a static IPv6 entry from the IPv6 neighbor discovery, use the no ipv6 neighbor [vrf
vrf-name] {ipv6-address} {interface interface} command.
Parameters
vrf vrf-name (Optional) Enter the keyword vrf followed by the name of the VRF to install IPv6
routes in that VRF.
ipv6-address Enter the IPv6 address of the neighbor in the x:x:x:x::x format.
NOTE: The :: notation species successive hexadecimal elds of zero.
interface interface Enter the keyword interface then the interface type and slot/port or number
information:
• For a 10-Gigabit Ethernet interface, enter the keyword
TenGigabitEthernet then the slot/port information.
•
For a 40-Gigabit Ethernet interface, enter the keyword fortyGigE then the
slot/port information.
• For a Loopback interface, enter the keyword loopback then a number from 0
to 16383.
• For a port channel interface, enter the keywords port-channel then a
number.
• For a Null interface, enter the keyword null then the Null interface number.
• For a VLAN interface, enter the keyword vlan then a number from 1 to 4094.
• For a tunnel interface, enter the keyword tunnel then the tunnel interface
number. The range is from 1 to 16383.
hardware_address Enter a 48-bit hardware MAC address in nn:nn:nn:nn:nn:nn format.
Defaults none
Command Modes CONFIGURATION
1256
Neighbor Discovery Protocol (NDP)