Chapter 30
| IP Interface Commands
IPv6 Interface
– 883 –
ipv6 nd ns-interval This command configures the interval between transmitting IPv6 neighbor
solicitation messages on an interface. Use the no form to restore the default value.
Syntax
ipv6 nd ns-interval milliseconds
no ipv6 nd ns-interval
milliseconds - The interval between transmitting IPv6 neighbor solicitation
messages. (Range: 1000-3600000)
Default Setting
1000 milliseconds is used for neighbor discovery operations
0 milliseconds is advertised in router advertisements
Command Mode
Interface Configuration (VLAN)
Command Usage
â—† When a non-default value is configured, the specified interval is used both for
router advertisements and by the router itself.
â—† This command specifies the interval between transmitting neighbor
solicitation messages when resolving an address, or when probing the
reachability of a neighbor. Therefore, avoid using very short intervals for normal
IPv6 operations.
â—† Setting the neighbor solicitation interval to 0 means that the configured time is
unspecified by this router.
Example
The following sets the interval between sending neighbor solicitation messages to
30000 milliseconds:
Console(config)#interface vlan 1
Console(config)#pv6 nd ns-interval 30000
Console(config)#end
Console#show ipv6 interface
VLAN 1 is up
IPv6 is enabled.
Link-local address:
fe80::269:3ef9:fe19:6779%1/64
Global unicast address(es):
2001:db8:0:1:2e0:cff:fe02:fd/64, subnet is 2001:db8:0:1::/64[EUI]
2001:db8:2222:7272::72/96, subnet is 2001:db8:2222:7272::/96
Joined group address(es):
ff02::2
ff02::1:ff19:6779
ff02::1:ff00:0
ff02::1:ff00:72
ff02::1:ff02:fd
ff02::1:2
ff02::1
IPv6 link MTU is 1500 bytes
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