Configuring IPv6 PIM
Configuring PIM
page 6-38
OmniSwitch AOS Release 7 Advanced Routing Configuration Guide
March 2011
Verifying Group Mapping
To display the static configuration of IPv6 multicast group mappings for PIM-Dense Mode (DM), use the
show ipv6 pim dense group
command. For example:
-> show ipv6 pim dense group
Group Address/Pref Length Mode Override Precedence Status
---------------------------+-----+--------+----------+--------
ff00::/8 dm false none enabled
ff34::/32 dm false none enabled
To display the static configuration of IPv6 multicast group mappings for PIM-Source-Specific Multicast
(SSM) mode, use the
show ipv6 pim ssm group
commad. For example:
-> show ipv6 pim ssm group
Group Address/Pref Length Mode Override Precedence Status
---------------------------+-----+--------+----------+--------
ff00::/8 ssm false none enabled
ff34::/32 ssm false none enabled
IPv6 PIM Bootstrap and RP Discovery
Before configuring IPv6 PIM-SM parameters, please consider the following important guidelines.
For correct operation, every IPv6 PIM-SM router within an IPv6 PIM-SM domain must be able to map a
particular multicast group address to the same Rendezvous Point (RP). Otherwise, some receivers in the
domain will not receive some groups. Two mechanisms are supported for multicast group address
mapping:
•
Bootstrap Router (BSR) Mechanism
•
Static RP Configuration
The chosen multicast group address mapping mechanism should be used consistently throughout the IPv6
PIM-SM domain. Any RP address configured or learned
must
be a domain-wide reachable address.
Configuring a C-RP for IPv6 PIM
To configure the local router as the Candidate-Rendezvous Point (C-RP) for a specified IPv6 multicast
group(s), use
the
ipv6 pim candidate-rp
command. For example:
-> ipv6 pim candidate-rp 2000::1 ff0e::1234/128 priority 100 interval 100
This specifies the switch to advertise the address 2000::1 as the C-RP for the multicast group ff0e::1234
with a prefix length of 128, set the priority level for this entry to 100, and set the interval at which the
C-RP advertisements are sent to the bootstrap router to 100.
Use the
no
form of this command to remove the association of the device as a C-RP for a particular multi-
cast group.
-> no ipv6 pim candidate-rp 2000::1 ff0e::1234/128
If no C-RP address is defined, the switch will not advertise itself as a C-RP for any groups.
The C-RP priority is used by a Designated Router to determine the RP for a particular group. As per the C-
RP priority range, the lower the numerical value, the higher the priority. If two or more C-RPs have the