Span And Rspan Session Limits - Cisco Catalyst 3550 series Software Configuration Manual

Configuring SPAN
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SPAN and RSPAN Session Limits

You can configure (and store in NVRAM) a maximum of two SPAN or RSPAN sessions on each switch.
You can divide the two sessions between SPAN, RSPAN source, and RSPAN destination sessions. You
can configure multiple source ports or source VLANs for each session.
Default SPAN and RSPAN Configuration
Table 24-1
Table 24-1 Default SPAN and RSPAN Configuration
Feature
SPAN state
Source port traffic to monitor
Encapsulation type (destination port)
Ingress forwarding (destination port)
Configuring SPAN
This section describes how to configure SPAN on your switch. It contains this configuration information:
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Catalyst 3550 Multilayer Switch Software Configuration Guide
24-8
802.1X—You can enable 802.1X on a port that is a SPAN destination or reflector port; however,
802.1X is disabled until the port is removed as a SPAN destination or reflector port. You can enable
802.1X on a SPAN source port.
For SPAN sessions, do not enable 802.1X on ports that are egress monitored when ingress
forwarding is enabled on the destination port. For RSPAN source sessions, do not enable 802.1X on
any ports that are egress monitored.
shows the default SPAN and RSPAN configuration.
SPAN Configuration Guidelines, page 24-9
Creating a SPAN Session and Specifying Ports to Monitor, page 24-10
Creating a SPAN Session and Enabling Ingress Traffic, page 24-11
Removing Ports from a SPAN Session, page 24-13
Specifying VLANs to Monitor, page 24-14
Specifying VLANs to Filter, page 24-15
Chapter 24
Default Setting
Disabled.
Both received and sent traffic (both); for additional
source ports or VLANs, only received (rx) traffic can be
monitored.
Native form (no encapsulation type header).
Disabled.
Configuring SPAN and RSPAN
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