Cisco Systems EA6500 Manual De Usuario

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Catalyst 6500 Series Switch Cisco IOS Software Configuration Guide—Release 12.1 E
78-14099-04
Chapter 34      Configuring Local SPAN and RSPAN
Local SPAN and RSPAN Configuration Guidelines and Restrictions
Local SPAN and RSPAN Source and Destination Limits
These are the local SPAN and RSPAN source and destination limits:
Local SPAN and RSPAN Guidelines and Restrictions
These guidelines and restrictions apply to both local SPAN and RSPAN:
  •
Release 12.1(13)E and later releases support RSPAN.
  •
In releases earlier than 12.1(20)E, ports on the WS-X6548-GE-TX and WS-X6548V-GE-TX 
switching modules cannot be ingress SPAN sources when the switch is operating in truncated mode.
  •
You need a network analyzer to monitor destination ports.
  •
You can configure both Layer 2 LAN ports (LAN ports configured with the switchport command) 
and Layer 3 LAN ports (LAN ports not configured with the switchport command) as sources or 
destinations.
  •
With Release 12.1(13)E and later releases, you can configure destination ports as trunks to capture 
tagged traffic. With earlier releases, if you configure a trunk port as a destination port, SPAN 
suspends trunking on the port.
  •
A port specified as a destination port in one SPAN session cannot be a destination port for another 
SPAN session.
  •
A port configured as a destination port cannot be configured as a source port. 
  •
A port channel interface (an EtherChannel) can be a source.
  –
With Release 12.1(13)E and later releases, you cannot configure active member ports of an 
EtherChannel as source ports. Inactive member ports of an EtherChannel can be configured as 
sources but they are put into the suspended state and carry no traffic.
  –
With releases earlier than 12.1(13)E, if you configure a member port of an EtherChannel as a 
SPAN source port, it is put into the suspended state and carries no traffic.
  •
A port channel interface (an EtherChannel) cannot be a destination.
  –
With Release 12.1(13)E and later releases, you cannot configure active member ports of an 
EtherChannel as destination ports. Inactive member ports of an EtherChannel can be configured 
as destinations but they are put into the suspended state and carry no traffic. 
  –
With releases earlier than 12.1(13)E, if you configure a member port of an EtherChannel as a 
SPAN destination port, it is put into the suspended state and carries no traffic.
  •
You cannot mix individual source ports and source VLANs within a single session.
  •
If you specify multiple ingress source ports, the ports can belong to different VLANs.
  •
You cannot mix source VLANs and filter VLANs within a session. You can have source VLANs or 
filter VLANs, but not both at the same time.
Sources and Destinations
Local SPAN Sessions
RSPAN Source Sessions
RSPAN Destination Sessions
Egress sources
1 (0 with a remote SPAN 
source session configured)
1 (0 with a local SPAN egress 
source session configured)
1 RSPAN VLAN
Ingress sources
64
64
Destinations per session
64
1 RSPAN VLAN
64