Cabletron Systems CSX400 User Manual
Page 43
The Filtering Database Window
3-23
CSX Bridge View
For each entry in the Forwarding database, the window displays the following:
Source Address
Displays the MAC addresses of devices that have transmitted frames to the
bridge.
Port
IdentiÞes the bridge port where frames from the noted source address are
received. A value of 0 indicates that the address exists within the Filtering
Database, but the database has not yet learned the corresponding port number.
Status
Indicates how the entry got into the database:
¥
learned
ÑThe address was copied into the database from the source address
Þeld of a received frame.
¥
self
ÑIdentiÞes one of the bridge ports.
¥
management
ÑIndicates an entry that was entered into the database manually.
The status Þeld of all static entries in the Forwarding Table will display
management
.
¥
invalid
ÑThe entry is a learned entry that has aged out, but has not yet been
ßushed from the table.
¥
other
ÑThe bridge is unable to determine the entryÕs status.
The information displayed for the Static database is somewhat different; for each
entry, the window displays the following:
Source Address
Displays the MAC addresses of devices that have transmitted frames to the
bridge.
Receive Port
Displays the port on which a packet with the speciÞed source address must be
received in order for the Þltering actions speciÞed in the Destination Port Þeld to
take place. A setting of 0 will apply the Þltering action anytime a packet with the
speciÞed source address is received by any of the bridge ports.
Destination Port
Displays the port or ports to which frames that have the speciÞed source address
and were received on the speciÞed port or ports will be forwarded. Note that
packets with the speciÞed source address received on the speciÞed port or ports
will be blocked from any ports not listed in this Þeld.
If the number of Destination Ports exceeds what the Destination Ports column is
able to display, Destination Ports for that Þlter appear as a hex string that maps to
actual port numbers.