Brocade Communications Systems Upgrade Pef IPMC5000PEF IPMC5000PEF Manual De Usuario

The following new runtime commands have been introduced:

max-mcache This command is described in the “Defining the maximum number of PIM cache entries”
section.

ip igmp max-group-address This command, which is described in the “Defining the maximum
number of IGMP group ” section, addresses replaces the system-max igmp-max-group-address
command.

Show and clear command support

The following show and clear commands support Multicast Multi-VRF:

•

clear ip igmp [ vrf vrf-name ] cache

•

clear ip igmp [ vrf vrf-name ] traffic

•

show ip igmp [vrf vrf-name] group [group-address [detail] [tracking]]

•

show ip igmp [vrf vrf-name] interface [ve number | ethernet port-address | tunnel num]

•

show ip igmp [vrf vrf-name] settings

•

show ip igmp [vrf vrf-name] traffic

Changing global IP multicast parameters

The following sections apply to PIM-DM, PIM-SM, and IGMP.

Concurrent support for multicast routing and snooping

Multicast routing and multicast snooping instances work concurrently on the same device. For
example, you can configure PIM routing on certain VEs interfaces and snooping on other VEs or
VLANs. The limitation is that either multicast snooping or routing can be enabled on a VE interface or
VLAN, but not on both. This is because all of the multicast data and control packets (IGMP, PIM)
received on the snooping VLAN are handled by multicast snooping and do not reach the multicast
routing component. Similarly, any multicast data or control packets received on a VE interface enabled
with PIM routing are handled by the PIM routing component and are not seen by the IGMP or PIM
snooping component.

The following considerations apply when configuring concurrent operation of Multicast Routing and
Snooping.

Either multicast snooping or routing can be enabled on a VE or VLAN but not both.

Snooping can be enabled globally by configuring the ip multicast active | passive command.

The global snooping configuration is inherited by all current VLANs that are not enabled for
multicast routing.

The global snooping configuration is also inherited by all new VLANs. Enabling multicast routing
on a newly created VLAN or VE automatically disables snooping on the VLAN or VE.

When a VLAN-level snooping is configured, it is displayed.

Show and clear command support