Syntax
mtu
ipv6 mtu
no ipv6 mtu
mtu — Is the maximum transmission unit. (Range: 1280-1500)
•
Default Configuration
The default MTU is 1500.
Command Mode
Interface Configuration (VLAN, Tunnel, Loopback) mode
User Guidelines
This command has no user guidelines.
Example
The following example sets the maximum transmission unit (MTU) size, in bytes, of IPv6
packets.
console(config)#interface vlan 15
console(config-if-vlan15)#ipv6 mtu 1300
ipv6 nd dad attempts
Use the ipv6 nd dad attempts command in Interface Configuration mode to set the number of
duplicate address detection probes transmitted while doing neighbor discovery. Duplicate
address detection verifies that an IPv6 address on an interface is unique.
Syntax
ipv6 nd dad attempts
no ipv6 nd dad attempts
attempts — Probes transmitted. (Range: 0-600)
•
Default Configuration
The default value for attempts is 1.
Command Mode
Interface Configuration (VLAN, Tunnel, Loopback) mode
666
IPv6 Routing Commands
attempts