Cisco WS-C2948G-GE-TX Configuration Manual page 407

Chapter 26 Configuring SPAN and RSPAN
Table 26-2 Making Modifications to an Active RSPAN Session
Switch Action
A (source) Disable the RSPAN session.
B (source) Remove source port 3/2 from the RSPAN session.
B (source) Add source port 3/2 to the RSPAN session.
Adding RSPAN Source Ports in Intermediate Switches
This example shows how to add RSPAN source ports in intermediate switches.
RSPAN configuration; see
in Switch C can be configured for the same RSPAN session.
Figure 26-4 Adding RSPAN Source Ports in an Intermediate Switch
Switch A
Table 26-3 Adding RSPAN Source Ports in an Intermediate Switch
Switch Ports
A (source) 4/1, 4/2
B (source) 3/1, 3/2, 3/3
C (intermediate) –
C (source) 2/1, 2/2
D (destination) 1/2
Configuring Multiple RSPAN Sessions
This example shows how to configure multiple RSPAN sessions.
configuration; see
a typical scenario where the monitoring probes would be placed in the data center and source ports in
Catalyst 4500 Series, Catalyst 2948G, Catalyst 2948G-GE-TX, and Catalyst 2980G Switches Software Configuration Guide—Release 8.2GLX
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Table 26-3
Switch D
1/1
T1
1/2
2/1.5
Switch C
3/1 2/1 2/2 3/2
T2
1/2
4/1 4/2 4/3 3/1 3/2
Reflector RSPAN
Port VLAN Direction
4/3 901 Ingress
3/4 901 Bidirectional
– 901 –
2/3 901 Bidirectional
– 901 –
Table 26-4 for the configuration commands to configure this RSPAN session. This is
RSPAN CLI Commands
set rspan disable source 901
set rspan source 3/1, 3/3 901 reflector 3/4
set rspan source 3/1-3 901 reflector 3/4
for the commands to configure this RSPAN session. Ports 2/1-2
Destination switch
(data center)
1/2
Probe
Intermediate switch
(distribution)
T3
1/1
Source switch(es)
Switch B
(access)
3/3 3/4
RSPAN CLI Commands
set rspan source 4/1-2 901 rx reflector 4/3
set rspan source 3/1-3 901 reflector 3/4
No RSPAN CLI command needed
set rspan source 2/1-2 901 reflector 2/3
set rspan destination 1/2 901
Configuring RSPAN
Figure 26-4
Figure 26-5 shows an RSPAN
shows an
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