The Bridge Status Window 2-9

Bridging
Bridge State on Interface
Indicates the state of bridging over the port interface. Possible bridge states and
their corresponding colors are:
¥Forwarding (green)ÑThe port is on-line and forwarding packets across the
bridge from one network segment to another.
¥Disabled (blue)ÑBridging at the port has been disabled by management; no
trafÞc can be received or forwarded on this port, including conÞguration
information for the bridged topology.
¥Listening (magenta)ÑThe port is not adding information to the Þltering
database. It is monitoring Bridge Protocol Data Unit (BPDU) trafÞc while
preparing to move to the forwarding state.
¥Learning (magenta)ÑThe Forwarding database is being created, or the
Spanning Tree Algorithm is being executed because of a network topology
change. The port is monitoring network trafÞc, and learning network
addresses.
¥Blocking (orange)ÑThe port is on-line, but Þltering trafÞc from going across
the bridge from one network segment to another. Bridge topology information
will be forwarded by the port.
Interface Type
Indicates the interface type which applies to each device bridging port interface
(e.g., ethernet). The interface type (ifType) is a mandatory object type from the
SNMP MIB II Interface (if) Group.
Bridge Address
Indicates the physical address of the bridge interface.
Speed
Indicates the speed of the interface in Mbps or Gbps.
Accessing Bridge Status Window Options
At the top of the Bridge Status window, you can click Bridge to access a menu
that provides other bridge management options. Depending on which device you
are monitoring via SPECTRUM Element Manager, the following bridge
management options will be available:
¥ The Module Type window displays a description of the device that is
currently being monitored.
¥ The Find Source Address window allows you to discover the bridge interface
through which a particular MAC address is communicating; see Using the
Find Source Address Feature, page 2-62, for details.
¥ The Performance Graph window displays statistics for trafÞc across the entire
bridge; see Performance Graphs, page 2-15, for details.