Cabletron Systems STS16-20R, STS16-20D manual 179

179

•Known-<port type> Port <nn>

—A known address on port nn. The port number “nn” can be followed by SRT which means that the address is known as source of frames that shall be switched using the SRT switching mode. If a BRF is configured for SRT/SRB mode, a MAC address can be known both as an SRT address and as an SRB address.

—<port type> can be:

TR—The address is known at the specified Token-Ring port. ATM—The address is known at the specified ATM port HSTR—The address is known at the specified High-Speed Token-Ring port

TS—The address is known at the specified Translational Switch. Port—In this case “nn” will appear as <box number>/<port number>. The address is known at a port of another switch in the stack.

If the address has occurred as a destination address in incoming frames at other ports, it will be present in these ports too.

•Unknown

—The address is a unicast address and has occurred as a destination address in incoming frames at one or more ports. The switch has, however, not yet learned the location of the address because the station has not sent any response frames.

•Multicast

•

•

•

—The address is a group address or a functional address and has occurred as a destination address in incoming frames at one or more ports.

STP Multicast

—The group address used as a destination address in IEEE Spanning Tree Protocol frames.

—Present on all ports.

STP Multicast-Cisco

—The group address used as a destination address in Cisco Spanning Tree Protocol frames.

—Present on all ports.

STP Multicast-IBM

—The functional address used as a destination address in IBM Spanning Tree Protocol frames.

Monitoring the Network from the Console Statistics Menu SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide