Rspan Configuration Examples - Cisco WS-C2948G-GE-TX Configuration Manual

Configuring RSPAN

RSPAN Configuration Examples

The following sections provide examples that show how to configure RSPAN.
Configuring a Single RSPAN Session
This example shows how to configure a single RSPAN session.
configuration; see
that you have already set up RSPAN VLAN 901 for this session on all the switches by entering the set
vlan vlan_num rspan command. With VTP enabled in the network, you can create the RSPAN VLAN
in one switch and VTP propagates it to the other switches in the VTP domain. In the configuration shown
in Figure 26-3
switches without modifying the configuration in Switch C or Switch D.
Figure 26-3 Single RSPAN Session
Switch A
Table 26-1 Configuring a Single RSPAN Session
Switch Ports
A (source) 4/1, 4/2
B (source) 3/1, 3/2, 3/3
C (intermediate) –
D (destination) 1/2
Modifying an Active RSPAN Session
This example shows how to modify an active RSPAN session.
session; see
ports from an RSPAN session.
Catalyst 4500 Series, Catalyst 2948G, Catalyst 2948G-GE-TX, and Catalyst 2980G Switches Software Configuration Guide—Release 8.2GLX
26-14
Table 26-1 for the commands to configure this RSPAN session.
and Table 26-1, the RSPAN session may be disabled in Switch A, Switch B, or both
Switch D
1/1
T1
1/2
Switch C
3/1 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 –
– 901 –
Table 26-2 for the commands to disable an RSPAN session and to add or remove source
Destination switch
(data center)
1/2
Probe
Intermediate switch
(distribution)
T3
1/1
Source switch(es)
Switch B
3/3 3/3
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 destination 1/2 901
Figure 26-3
Chapter 26 Configuring SPAN and RSPAN
Figure 26-3 shows an RSPAN
Table 26-1
(access)
shows a single RSPAN
assumes
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