3Com Switch 7750 SeriesCommand Reference Guide — Basic Port Commands Chapter 1 Port Basic Configuration Commands1-20auto: Identifies the network cable type (crossover or straight through) automatically.normal: Specifies the network cable to be straight through network cable.DescriptionUse the mdi command to set the network types that can be identified by Ethernet ports.Use the undo mdi command to restore the default network cable type that can beidentified by Ethernet ports.By default, the port identifies the network type automatically.Caution:The Switch 7750 series supports the auto mode only. If another mode is specified, thesystem prompts “Operation not supported”.Example# Specify Ethernet1/0/1 to identify the network cable type automatically.<3Com> system-viewSystem View: return to User View with Ctrl+Z.[3Com] interface Ethernet1/0/1[3Com-Ethernet1/0/1] mdi auto1.1.21 multicast-suppressionSyntaxmulticast-suppression { ratio | bandwidth { mbps-value | kbps kbps-value } | ppsmax-pps }undo multicast-suppressionViewEthernet port viewParameterratio: Maximum ratio of received multicast traffic to the total bandwidth on the Ethernetport. The value ranges from 1 to 100 (in step of 1) and defaults to 100. The smaller theratio is, the less multicast traffic is allowed to be received.mbps-value: Maximum bandwidth (in Mbps) for receiving multicast traffic on anEthernet port. The range of the mbps-value argument depends on the port type: