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xStack DGS-3600 Series Layer 3 Gigabit Ethernet Managed Switch CLI Manual
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14
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
Purpose
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.
Parameters
<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 as 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.
[add | delete] – Specify to add or delete ports to be mirrored that are
specified in the source ports parameter.
source ports – The port or ports being mirrored. This cannot include
the Target port.
• <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. 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.
rx − Allows the mirroring of only packets received by (flowing into)
the port or ports in the port list.
tx − Allows the mirroring of only packets sent to (flowing out of) the
port or ports in the port list.
both − Mirrors all the packets received or sent by the port or ports in
the port list.
Restrictions The Target port cannot be listed as a source port. Only
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