Microsoft ES4625 Manuale Utente
Command Line Interface
4-154
4
Mirror Port Commands
This section describes how to mirror traffic from a source port to a target port.
port monitor
This command configures a mirror session. Use the no form to clear a mirror
session.
session.
Syntax
port monitor interface [rx | tx | both]
no port monitor interface
no port monitor interface
• interface - ethernet unit/port (source port)
- unit - Stack unit. (Range: 1-8)
- port - Port number. (Range: 1-25/49)
- port - Port number. (Range: 1-25/49)
• rx - Mirror received packets.
• tx - Mirror transmitted packets.
• both - Mirror both received and transmitted packets.
• tx - Mirror transmitted packets.
• both - Mirror both received and transmitted packets.
Default Setting
No mirror session is defined. When enabled, the default mirroring is for both
received and transmitted packets.
received and transmitted packets.
Command Mode
Interface Configuration (Ethernet, destination port)
Command Usage
• You can mirror traffic from any source port to a destination port for real-time
analysis. You can then attach a logic analyzer or RMON probe to the
destination port and study the traffic crossing the source port in a completely
unobtrusive manner.
destination port and study the traffic crossing the source port in a completely
unobtrusive manner.
• The destination port is set by specifying an Ethernet interface.
• The mirror port and monitor port speeds should match, otherwise traffic may
• The mirror port and monitor port speeds should match, otherwise traffic may
be dropped from the monitor port.
• You can create multiple mirror sessions, but all sessions must share the same
destination port. However, you should avoid sending too much traffic to the
destination port from multiple source ports.
destination port from multiple source ports.
Table 4-50 Mirror Port Commands
Command
Function
Mode
Page
port monitor
Configures a mirror session
IC
show port monitor
Shows the configuration for a mirror port
PE