D-Link DWS-1008 User Manual
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Viewing FDB Information
The
show fdb command displays the hosts learned by the switch and the ports to which they are
connected. To display forwarding database (FDB) information, type the following command:
DWS-1008#
show fdb
* = Static Entry. + = Permanent Entry. # = System Entry.
VLAN TAG Dest MAC/Route Des
[CoS]
Destination Ports or VCs/[Protocol Type]
---- ---- ------------------ ----- ----------------------------------------------------------------------------------------
130 3
00:05:5d:7e:94:83
1
[ALL]
130 130 00:02:2d:85:6b:4d
t:192.168.14.6
[ALL]
130 130 00:0b:0e:12:34:56
t:192.168.15.5
[ALL]
130 130 00:0b:0e:02:76:f6
t:192.168.14.6
[ALL]
130 2
00:02:2d:86:bd:38
3
[ALL]
130 3
00:05:5d:84:d3:d3
1
[ALL]
4097
00:0b:0e:00:04:30
#
CPU
[ALL]
4096
00:0b:0e:00:04:30
#
CPU
[ALL]
130
00:0b:0e:00:04:30
#
CPU
[ALL]
Total Matching FDB Entries Displayed = 32
dynamic = 27, static=0, permanent=0, system=5
Viewing ARP Information
The show arp command displays the ARP aging timer and ARP entries in the system. To display ARP
information, type the following command:
DWS-1008#
show arp
ARP aging time: 1200 seconds
Host
HW Address
VLAN
Type
State
-------------------------------------------------------------------------------------------------
10.8.1.1
00:30:b6:3e:5c:a8 1
DYNAMIC RESOLVED
10.8.107.1 00:0b:0e:00:04:0c 1
LOCAL
RESOLVED
Port Mirroring
Port mirroring is a troubleshooting feature that copies (mirrors) traffic sent or received by a switch port
(the source port) to another switch port (the observer). You can attach a protocol analyzer to the observer
port to examine the source port’s traffic. Both traffic directions (send and receive) are mirrored.
Note: Port mirroring enables you to snoop traffic on wired ports. To snoop wireless traffic, see “Remotely
Monitoring Traffic”.
Summary of Contents for DWS-1008
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