Specifications

xStack DGS-3400 Series Layer 2 Gigabit Managed Switch CLI Manual
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PORT MIRRORING COMMANDS
The port mirroring commands in the Command Line Interface (CLI) are listed (along with the appropriate parameters) in the
following table.
Command Parameters
config mirror port <port> [add | delete] source ports <portlist> [rx | tx | both]
enable mirror
disable mirror
show mirror
Each command is listed, in detail, in the following sections.
config mirror port
Used to configure a mirror port − source port pair on the Switch.
Traffic from any source port to a target port can be mirrored for real-
time analysis. A logic analyzer or an RMON probe can then be
attached to study the traffic crossing the source port in a completely
obtrusive manner.
Syntax
config mirror port <port> [add | delete] source ports <portlist> [rx
| tx | both]
Description This command allows a range of ports to have all of their traffic also
sent to a designated port, where a network sniffer or other device can
monitor the network traffic. In addition, users can specify that only
traffic received by or sent by one or both is mirrored to the Target
port.
<port> − This specifies the Target port (the port where mirrored
packets will be received). The target port must be configured in the
same VLAN and must be operating at the same speed a s the source
port. If the target port is operating at a lower speed, the source port
will be forced to drop its operating speed to match that of the target
port. The port is specified by listing the lowest switch number and the
beginning port number on that switch, separated by a colon. For
example, 1:3 specifies switch number 1, port 3. 2:4 specifies switch
number 2, port 4.
[add | delete] – Specifies to add or delete ports to be mirrored which
are specified in the source ports parameter.
source ports – The port or ports being mirrored. This cannot include
the Target port.
rx − Allows the mirroring of only packets received by (flowing into) the
port or ports in the port list.
Purpose
Parameters
• <portlist> − This specifies a port or range of ports that will be
mirrored. That is, the range of ports in which all traffic will be
copied and sent to the Target port. That is, the range of ports
in which all traffic will be copied and sent to the Target port.
The port list is specified by listing the lowest switch number
and the beginning port number on that switch, separated by a
colon. Then the highest switch number, and the highest port
number of the range (also separated by a colon) are
specified. The beginning and end of the port list range are
separated by a dash. For example, 1:3 specifies switch
number 1, port 3. 2:4 specifies switch number 2, port 4. Non-
contiguous portlist entries are separated by a comma. (ex:
1:1-1:3,1:7-1:9)
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