Hub/Switch Reference Guide

92 VLAN Commands
NN47250-100 (Version 02.51)
Defaults None.
Access All.
Usage To display the entire forwarding database, enter the show fdb command without options.
To display only a portion of the database, use optional parameters to specify the types of entries you
want to display.
Examples The following command displays all entries in the forwarding database:
WSS# show fdb all
* = Static Entry. + = Permanent Entry. # = System Entry.
VLAN TAG Dest MAC/Route Des [CoS] Destination Ports [Protocol Type]
---- ---- ------------------ ----- -------------------------------------------------------------------
1 00:01:97:13:0b:1f 1 [ALL]
1 aa:bb:cc:dd:ee:ff * 3 [ALL]
1 00:0b:0e:02:76:f5 1 [ALL]
Total Matching FDB Entries Displayed = 3
The top line of the display identifies the characters to distinguish among the entry types.
The following command displays all entries that begin with the MAC address wildcard 00:
WSS# show fdb 00:*
* = Static Entry. + = Permanent Entry. # = System Entry.
VLAN TAG Dest MAC/Route Des [CoS] Destination Ports [Protocol Type]
---- ---- ------------------ ----- -----------------------------------------------------------
1 00:01:97:13:0b:1f 1 [ALL]
1 00:0b:0e:02:76:f5 1 [ALL]
Total Matching FDB Entries Displayed = 2
Table 11 describes the fields in the show fdb output.
mac-addr-wildcard A single MAC address or set of MAC addresses. Specify a MAC address,
or use the wildcard character (*) to specify a set of MAC addresses. (For
details, see “MAC Address Wildcards” on page 13.)
vlan vlan-id Name or number of a VLAN for which to display entries.
perm Displays permanent entries. A permanent entry does not age out and
remains in the database even after a reboot, reset, or power cycle.
static Displays static entries. A static entry does not age out, but is removed
from the database after a reboot, reset, or power cycle.
dynamic Displays dynamic entries. A dynamic entry is automatically removed
through aging or after a reboot, reset, or power cycle.
system Displays system entries. A system entry is added by WSS Software. For
example, the authentication protocols can add entries for wired and
wireless authentication users.
all Displays all entries in the database, or all the entries that match a
particular port or ports or a particular VLAN.
port
port-list
Destination port(s) for which to display entries.