Siemens S223 - Manual (Page 315)

User Manual UMN:CLI
SURPASS hiD 6615 S223/S323 R1.5
A50010-Y3-C150-2-7619 315
9.3.9 PIM-SSM Group
To define the Source Specific Multicast (SSM) range of IP multicast addresses, use the
following command. When an SSM range of IP multicast addresses is defined by the ip
pim ssm
command, no Multicast Source Discovery Protocol (MSDP) Source-Active (SA)
messages will be accepted or originated in the SSM range.
Command Mode Description
ip pim ssm range {<1-99> | AC-
CESS-LIST }
Defines the SSM range of IP multicast address.
1-99: simple access list
ACCESS-LIST: IP named standard access list
ip pim ssm default Configures the SSM by default.
no ip pim ssm
Global
Disables the command.
9.3.10 PIM Snooping
PIM Snooping is used to reduce unnecessary bandwidth by restricting data and multicast
control packets which transmitted between each port. In networks where a Layer 2 switch
interconnects several routers, the switch floods IP multicast packets on all multicast router
ports by default, even if there are no multicast receivers downstream. If PIM Snooping is
enabled, the switch restricts multicast packets for each IP multicast group to only those
multicast router ports that have downstream receivers joined to that group. And the switch
learns which multicast router ports need to receive the multicast traffic within a specific
VLAN by listening to the PIM hello messages, PIM join and prune messages.
To configure PIM Snooping, use the following command.
Command Mode Description
ip pim snooping Enables PIM Snooping function on the switch.
ip pim snooping vlan VLANS Enables PIM Snooping function on a specific interface.
no ip pim snooping
no ip pim snooping vlan VLANS
Global
Disables the PIM Snooping command.
To delete all L2 PIM snooping multicast groups of a specified port, multicast address or
vlan, use the following command.
Command Mode Description
clear ip pim snooping groups
[A.B.C.D]
Deletes all PIM snooping groups and source addresses
of a specified multicast group address.
clear ip pim snooping groups
[port PORTS]
Deletes all PIM snooping groups and source addresses
of a specified port.
clear ip pim snooping groups
[vlan VLANS]
Enable
Global
Bridge
Deletes all of the multicast router addresses and DR of
a specified VLAN.
By default, PIM Snooping is disabled. To operate PIM Snooping, IGMP Snooping should
be enabled as well.
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