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Recalculating the router id, Ipv6 nd global router advertisement control – Brocade Multi-Service IronWare Switching Configuration Guide (Supporting R05.6.00) User Manual

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Multi-Service IronWare Switching Configuration Guide

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Configuring IP parameters

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Syntax: [no] ip router-id ip-addr

NOTE

The command for setting the router ID for a specified VRF is exactly the same as for the default VRF.
The only difference is that when setting it for a specific VRF, the ip router-id command is configured
within the VRF as shown in the example.

NOTE

You can specify an IP address used for an interface, but do not specify an IP address in use by
another device.

Recalculating the router ID

You can use the clear ip router-id command to direct a device to recalculate the IP router ID. This
can be done for the default VRF or for a specified VRF, as shown in the following.

Brocade(config)# clear ip router-id

Syntax: clear ip router-id [ vrf vrf-name ]

Using this command without the vrf option recalculates the IP router ID for the default VRF.

You can use the vrf option to recalculate the IP router ID for a specific VRF that is specified by the
vrf-name variable.

IPv6 ND Global Router Advertisement Control

IPv6 ND Global Router Advertisement Control allows for disabling sending out router
advertisements at the global system level.

The [no] ipv6 nd global-suppress-ra command at the

interface level allows the user to disable and enable the sending of the ND Router Advertisement
on an interface. By default, the sending of ND Router Advertisement (RA) is enabled on all
interfaces, except for the tunnel and loopback interfaces, providing that the IPv6 Unicast Routing is
enabled and the interfaces are active for IPv6.

The IPv6 ND Global Router Advertisement Control gives the ability to quickly turn off the sending of
IPv6 ND Router Advertisement message on all IPv6 enabled interfaces.

By default,

The ND Router Advertisement is enabled.

Interface is enabled to send ND Router Advertisements.

The ipv6 nd suppress-ra and ipv6 nd send-ra interface commands, when configured, override
the system and VRF global ipv6 nd global-suppress-ra command.

Users sometimes require the ability to quickly turn off the sending of IPv6 ND Router Advertisement
message on all IPv6 enabled interfaces. This is achieved by providing the following additional
configuration command at system and VRF level:

Brocade(config-vrf-red-ipv6)[no]ipv6 nd global-suppress-ra

The ipv6 nd send-ra command is a new interface level command added as part of this
enhancement. This allows the user to configure the sending of RA messages on some selected
interfaces when the ipv6 nd global-suppress-ra command is set to disable the sending of RA
messages on all other interfaces.