Chapter 11 IPv6 Multicast Configuration
When IPv6 PIM sends a protocol message (such as PIM Hello, Join-Prune, Assert,
Bootstrap, Graft, Graft-Ack or State-refresh) of link-local range, the source IPv6
address of the message is the link-local address on the interface that sends
the message.
When IPv6 PIM sends a protocol message (such as Register,
Register-Stop or C-RP Advertisement), the source IPv6 address of the message is
the global unicast address on the interface that sends the message.
IPv6 multicast does not support Multicast Source Discovery Protocol (
). There
are two ways to receive multicast data from other IPv6 PIM domains.
a.
One way is to obtain the multicast source addresses in other IPv6 PIM domains
directly through other modes (such as advertisement) and use IPv6 PIM-SSM to
initiate joins of specific source groups.
b.
The other way is to use embedded Rendezvous Point (
) mechanism. The
device can obtain the RP addresses in other IPv6 PIM domains through the IPv6
multicast addresses with embedded RP addresses, and initiate joins to the RPs
in other domains. To deliver inter-domain IPv6 multicast routing information, IPv6
MBGP can be used, which is similar to IPv4 MBGP.
11.2 Configuring Public IP Multicast
To configure public IPv6 multicast on ZXR10 5900E, perform the following steps.
Step
Command
Function
ZXR10(config)#
ipv6 multicast-routing
Enables IPv6 multicast
function.
1
ZXR10(config)#
no ipv6 multicast-routing
Deletes all IPv6 multicast
functions.
2
ZXR10(config-mcast-ipv6)#
router pimsm
Enters PIM-SM mode.
3
ZXR10(config-pimsm-ipv6)#
exit
Exits from PIM-SM mode.
4
ZXR10(config-mcast-ipv6)#
show ipv6 mroute
[
group
<
group-address
>][
source
<
source-address
>]
Shows information in the IPv6
multicast routing table.
5
ZXR10#
show ipv6 rpf
<
source-address
>
Shows the Reverse Path
Forwarding (
) information.
The RPF information that PIM
is not concerned about will not
be displayed by this command.
6
ZXR10#
clear ipv6 mroute
[
group-address
<
group-address
>][
source-address
<
source-address
>]
Clears multicast routes.
7
ZXR10#
show ipv6 mroute summary
Shows the number of IPv6
multicast routing tables.
8
ZXR10#
show ipv6 mroute brief
Shows the brief information of
an IPv6 multicast routing table.
11-3
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