Brocade Communications Systems 8/80 Service Manual download pdf (Page 28)

ServerIron Switching and Routing Guide

The parameter values are the same as the for the broadcast filter command. In addition, the multicast filter

command requires the mac <multicast-address> | any parameter, which specifies the multicast address. Enter

mac any to filter on all multicast addresses. Enter mac followed by a specific multicast address to filter only on

that multicast address.

To filter on a range of multicast addresses, use the mask <ip-mask> parameter. For example, to filter on multicast

groups 0100.5e00.5200 – 0100.5e00.52ff, use mask ffff.ffff.ff00. The default mask matches all bits (is all Fs). You

can leave the mask off if you want the filter to match on all bits in the multicast address.

Setting the Multicast Limit

By default, the device sends multicasts and all other traffic at wire speed and is limited only by the capacities of the

hardware. However, if other devices in the network cannot handle unlimited multicast traffic, this command allows

you to relieve those devices by throttling the multicasts at the Brocade device.

NOTE: The multicast limit does not affect broadcast or unicast traffic. However, you can use the broadcast limit

and unknown-unicast limit commands to control these types of traffic.

To specify the maximum number of multicast packets the device can forward each second, enter the following

command:

ServerIron(config)#multicast limit 30000

To put the multicast limit on a specific interface, enter commands such as the following:

ServerIron(config)#interface e5

ServerIron(config-if-5)#multicast limit 30000

Syntax: [no] multicast limit <num>

<num> can be 0 – 4294967295.

Disabling IGMP Queries

You can disable Internet Group Membership Protocol (IGMP) queries from being sent or received on the port.

IGMP queries are enabled by default.

To disable IGMP queries on an interface, enter commands such as the following:

ServerIron(config)#int e5

ServerIron(config-if-5)#ip-multicast-disable

To re-enable the IGMP queries on the interface, enter a command such as the following:

ServerIron(config-if-5)#no ip-multicast-disable

Syntax: [no] ip-multicast-disable

Notes:

• This feature is supported only in hot-standby configurations.

• IP forwarding must be enabled on the ServerIron

• The backup MAC address in the hot-standby configuration must be the first port MAC address of one of the

ServerIrons.

• All VIPs on the device must be in a VE subnet.

• This feature is not supported in SSLB, TCS, FWLB, or IP NAT configurations.

Adding an IP Interface

To add an IP interface to the ServerIron, you must first add a virtual routing interface and then configure IP

addresses on it.

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Brocade Communications Systems 8/80 Service Manual Page 28