Multicast routing protocol
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SER
G
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226
show pim statistics
displays the statistic counters.
The router supports the PIM Source Specific Mode (PIM SSM). The distinction between the two
protocols is made by the multicast group to which is done the IGMP Join operation. In particular, in
the default configuration, the groups belonging to
232.0.0.0 - 232.255.255.255
(
232.0.0.0
/
8
) interval, are considered as SSM.
The command
set pim ssm-group <address> masklen N
allows to extend the multicast group interval that must be handle with SSM. For example, if you
specify:
set pim ssm-group 233.0.0.0 masklen 8
the Join operations toward the address included in the range between
232.0.0.0 -
232.255.255.255
are treated as SSM, and obviously also the default groups
232.0.0.0
/
8.
MULTICAST
SOURCE
DISCOVERY
PROTOCOL
The Multicast Source Discovery (MSDP) allows two routers to connect by using the PIM active
service, so you can manage the RP redundancy.
To configure it, you can use:
set msdp default-peer <ipaddr>
if set, it doesn't perform the RPF check if the SA is received by the default-peer,
set msdp originator-id <interface>
to use the IP address specified as originator RP.
To turn on the service, use:
set msdp on
Other options are available:
set msdp peer <ipaddr> connect-source <interface>
configures the peer with which to exchange the SAs, with source IP associated to the specified
interface.
set msdp mesh-group <name> <ip-addr>
to add an IP address to a mesh-group.
set msdp filter-SA <class-list> in!out
a filter is used to control the SAs' reception or the transmission
IGMP
P
ROTOCOL
IGMP protocol allows to join/leave groups of router directly connected to a destination or to a
source.
