inactive when a switch is removed from the stack or an inactive session can become active when a switch is
added to the stack.
Default SPAN and RSPAN Configuration
Table 51: Default SPAN and RSPAN Configuration
Default SettingFeature
Disabled.SPAN state (SPAN and RSPAN)
Both received and sent traffic (both).Source port traffic to monitor
Native form (untagged packets).Encapsulation type (destination port)
Disabled.Ingress forwarding (destination port)
On a trunk interface used as a source port, all VLANs are
monitored.
VLAN filtering
None configured.RSPAN VLANs
Configuration Guidelines
SPAN Configuration Guidelines
•
To remove a source or destination port or VLAN from the SPAN session, use the no monitor session
session_number source {interface interface-id | vlan vlan-id} global configuration command or the no
monitor session session_number destination interface interface-id global configuration command.
For destination interfaces, the encapsulation options are ignored with the no form of the command.
•
To monitor all VLANs on the trunk port, use the no monitor session session_number filter global
configuration command.
Related Topics
Creating a Local SPAN Session, on page 484
Creating a Local SPAN Session and Configuring Incoming Traffic, on page 486
Example: Configuring Local SPAN, on page 501
RSPAN Configuration Guidelines
•
All the SPAN configuration guidelines apply to RSPAN.
•
As RSPAN VLANs have special properties, you should reserve a few VLANs across your network for
use as RSPAN VLANs; do not assign access ports to these VLANs.
Consolidated Platform Configuration Guide, Cisco IOS Release 15.2(4)E (Catalyst 2960-X Switches)
483
Information About SPAN and RSPAN
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