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Catalyst 6000 Family Software Configuration Guide—Releases 6.3 and 6.4
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Chapter 38 Configuring SPAN and RSPAN
Configuring RSPAN
Modifying an Active RSPAN Session
This example shows how to modify an active RSPAN session. Use
Figure 38-3
for reference; see
Table 38-3
for the necessary commands to disable an RSPAN session and to add or remove source ports
from an RSPAN session.
Adding RSPAN Source Ports in Intermediate Switches
This example shows how to add RSPAN source ports in intermediate switches.
Figure 38-4
shows an
RSPAN configuration; see
Table 38-4
for the necessary commands to configure this RSPAN session.
Ports 2/1-2 in Switch C can be configured for the same RSPAN session.
Figure 38-4 Adding RSPAN Source Ports in Intermediate Switch
Table 38-3 Making Modifications to an Active RSPAN Session
Switch
Action
RSPAN CLI Commands
A (source)
Disable the RSPAN session.
set rspan disable source 901
B (source)
Remove source port 3/2 from RSPAN session.
set rspan source 3/1, 3/3 901
B (source)
Add back source port 3/2 to RSPAN session.
set rspan source 3/1-3 901
Table 38-4 Adding RSPAN Source Ports in Intermediate Switch
Switch
Ports
RSPAN VLAN
Direction
RSPAN CLI Commands
A (source)
4/1, 4/2
901
Ingress
set rspan source 4/1-2 901 rx
B (source)
3/1, 3/2, 3/3
901
Bidirectional
set rspan source 3/1-3 901
C (intermediate)
–
901
–
No RSPAN CLI command needed
C (source)
2/1, 2/2
901
Bidirectional
set rspan source 2/1-2 901
D (destination)
1/2
901
–
set rspan destination 1/2 901
1/1
1/2
3/1 2/1 2/2 3/2
1/2
4/1 4/2
1/2
3/1 3/2
1/1
3/3
Switch A
Switch C
Switch D
Switch B
Probe
Destination switch
(data center)
Intermediate switch
(distribution)
Source switch(es)
(access)
27391
T1
T2
T3
