Show commands – 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

19

Syntax: [no]ipv6 nd global-suppress-ra

Configuring IPv6 ND global router advertisement globally on the default VRF

When configuring the ipv6 nd global-suppress-ra command, the ND Router Advertisement
messages is not sent out on any interface in the default VRF, unless the ipv6 nd send-ra is set on
the interface. By default, ipv6 nd global-suppress-ra is not set for the IPv6 VRF.

Use the following command under address-family ipv6 for a specific VRF is added and applies to
the IPv6 VRF:

Brocade(config)# vrf red

Brocade(config-vrf-red)#address-family ipv6

Brocade(config-vrf-red-ipv6)#ipv6 nd global-suppress-ra

Syntax: [no] ipv6 nd global-suppress-ra

The following command when set ensures that IPv6 ND Router Advertisement messages are sent
out on the interface regardless of the setting of the ipv6 nd global-suppress-ra for the interface's
VRF.

Syntax: [no] ipv6 nd send-ra

By default, ipv6 nd send-ra is not set on the interface. When ipv6 nd send-ra is set, the ipv6 nd
suppress-ra command is unset. However, ipv6 nd suppress-ra is not set when ipv6 nd send-ra is
issued on the interface. This is similar to when a user issue existing ipv6 nd suppress-ra command
is on an interface, the ipv6 nd send-ra is unset. By default, ipv6 nd suppress-ra is not set.

If sending of RA messages is required on some selected interfaces to continue, then you must set
the ipv6 nd send-ra command on these interfaces before setting the ipv6 nd global-suppress-ra
command to disable the sending of RA messages on all other interfaces. Otherwise, the RA
messages are not sent out until the ipv6 nd send-ra command is set on each of the selected
interfaces.

The interface ipv6 nd send-ra and ipv6 nd suppress-ra commands are sticky in that they are
independent of the ipv6 nd global-suppress-ra command and either ipv6 nd send-ra or ipv6 nd
suppress-ra can still be present in configuration even when the ipv6 nd global-suppress-ra is also
in configuration.

Show commands

The output of show ipv6 interface is modified when the sending of router advertisement is disabled
on the interface or globally. Use the show ipv6 interface to display the output of the interface.

Brocade#show ipv6 int eth 2/1

Interface Ethernet 2/1 is up, line protocol is up

IPv6 is enabled, link-local address is fe80::200:ff:fe03:c030 [Preferred]

Global unicast address(es):

31:1:1::3 [Preferred], subnet is 31:1:1::/64

31:1:1:: [Anycast], subnet is 31:1:1::/64

Joined group address(es):

ff02::6

ff02::5

ff02::1:ff00:3

ff02::1:ff03:c030

ff02::2

ff02::1

Port belongs to VRF: default-vrf

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