Brocade FastIron Ethernet Switch IP Multicast Configuration Guide - Manual (Page 75)

Defining the maximum number of PIM cache entries
You can use the following run-time command to define the maximum number of repeated PIM traffic
being sent from the same source address and being received by the same destination address. To
define this maximum for the default VRF, enter the following commands.
device(config)# router pim
device(config-pim-router)# max-mcache 999
Syntax: [no] max-cache num
The num variable specifies the maximum number of multicast cache entries for PIM in the default VRF.
If not defined by this command, the maximum value is determined by the system-max pim-hw-
mcache command or by available system resources.
To define the maximum number of PIM Cache entries for a specified VRF, use the following command.
device(config)# router pim vrf vpn1
device(config-pim-router-vrf-vpn1)# max-mcache 999
Syntax: [no] router pim [ vrf vrf-name ]
The vrf parameter specified with the router pim command allows you to configure the max-mcache
command for a virtual routing and forwarding (VRF) instance specified by the vrf-name variable.
The num variable specifies the maximum number of multicast cache entries for PIM in the specified
VRF. If not defined by this command, the maximum value is determined by the system-max command
option pim-hw-mcache or by available system resources.
Defining the maximum number of IGMP group addresses
You can use the ip igmp max-group-address run-time command to set the maximum number of IGMP
addresses for the default virtual routing and forwarding (VRF) instance or for a specified VRF. To define
this maximum for the default VRF, enter the following command.
device(config)# ip igmp max-group-address 1000
Syntax: [no] ip igmp max-group-address num
The num variable specifies the maximum number of IGMP group addresses for all VRFs, including the
default VRF. If not defined by this command, the maximum value is determined by available system
resources.
To define this maximum for a specified VRF, enter the following commands.
device(config)# vrf vpn1
device(config-vrf-vpn1)# address-family ipv4
device(config-vrf-vpn1-ipv4)# ip igmp max-group-address 1000
Syntax: [no] vrf vrf-name
Syntax: [no] address-family ipv4
Syntax: [no] ip igmp max-group-address num
The vrf parameter specifies the VRF instance specified by the vrf-name variable.
The num parameter specifies the number of IGMP group addresses that you want to make available for
the specified VRF. If not defined by this command, the maximum value is determined by available
system resources.
Defining the maximum number of PIM cache entries
FastIron Ethernet Switch IP Multicast Configuration Guide 73
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