3com 2200 User Manual

Figure 11-2 shows the order in which the discard decisions are made.

Figure 11-2   How Frame Processing Affects Transmit Bridge Port Statistics

You can assign a multicast packet firewall threshold to a bridge port on the 
Switch 2200 to limit the forwarding rate of multicast traffic originating on 
the Ethernet segment connected to the port. For more information about 
the multicast packet firewall, see Chapter 7: Bridging Extensions in the 
SuperStack™ II Switch 2200 Operation Guide. 

The default is zero (0), which means that no threshold is set.

To set the multicast limit:

1 From the top level of the Administration Console, enter:

You are prompted for port type.

2 Enter 

, 

, or 

.

You are prompted for port number(s).

3 Enter the number(s) of the port(s) or 

 to set the threshold for all ports 

on the bridge. 

You are prompted for a new value for each port you specified.

txBlockedDiscs

txMtuExcDiscs

txMcastFilters
txAllFilters

txFrames

Frames forwarded to this bridge port

Frames discarded because transmit port blocked

Frames transmitted by this bridge port

processing of frames

Frames discarded because of user-defined
packet filter

Frames discarded because frame too large

system
ethernet
fddi

➧

bridge
ip
snmp
analyzer
script
logout

display
ipFragmentation
ipxSnapTranslation
addressThreshold
agingTime
stpState
stpPriority
stpMaxAge
stpHelloTime
stpForwardDelay
stpGroupAddress

➧

port
packetFilter

summary
detail

➧

multicastLimit
stpState
stpCost
stpPriority
address