Brocade BigIron RX Series Configuration Guide - Manual (Page 1266)

1188 BigIron RX Series Configuration Guide
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Configuring IPv6 neighbor discovery
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NOTE
When determining if hosts can use stateful autoconfiguration to get non-IPv6-address information,
a set Managed Address Configuration flag overrides an unset Other Stateful Configuration flag. In
this situation, the hosts can obtain nonaddress information. However, if the Managed Address
Configuration flag is not set and the Other Stateful Configuration flag is set, then the setting of the
Other Stateful Configuration flag is used.
By default, the Managed Address Configuration and Other Stateful Configuration flags are not set
in router advertisement messages. For example, to set these flags in router advertisement
messages sent from Ethernet interface 3/1, enter the following commands.
BigIron RX(config)# interface ethernet 3/1
BigIron RX(config-if-e100-3/1)# ipv6 nd managed-config-flag
BigIron RX(config-if-e100-3/1)# ipv6 nd other-config-flag
Syntax: [no] ipv6 nd managed-config-flag
Syntax: [no] ipv6 nd other-config-flag
To remove either flag from router advertisement messages sent on an interface, use the no form of
the respective command.
Enabling and disabling IPv6 router advertisements
If IPv6 unicast routing is enabled on an Ethernet interface, by default, this interface sends IPv6
router advertisement messages. However, by default, non-LAN interface types do not send router
advertisement messages.
To disable the sending of router advertisement messages on an Ethernet interface, enter
commands such as the following.
BigIron RX(config)# interface ethernet 3/1
BigIron RX(config-if-e100-3/1)# ipv6 nd suppress-ra
To enable the sending of router advertisement messages on an Ethernet interface, enter
commands such as the following.
BigIron RX(config)# interface ethernet 3/2
BigIron RX(config-if-e100-3/2)# no ipv6 nd suppress-ra
Syntax: [no] ipv6 nd suppress-ra
Configuring reachable time for remote IPv6 nodes
You can configure the duration (in seconds) that a router considers a remote IPv6 node reachable.
By default, a router interface uses the value of 30 seconds.
The router advertisement messages sent by a router interface include the amount of time specified
by the ipv6 nd reachable-time command so that nodes on a link use the same reachable time
duration. By default, the messages include a default value of 0.
NOTE
For the interval at which a router interface sends router advertisement messages, Brocade uses
seconds as the unit of measure instead of milliseconds.