Cisco WS-C2950SX-48-SI Configuration Manual page 404

Configuring RSPAN
Configuring a Single RSPAN Session
This example shows how to configure a single RSPAN session.
configuration; see
assumes that you have already set up RSPAN VLAN 901 for this session on all the switches using 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. Note that in the
configuration example shown in
both 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. Use
Table 26-2
from an RSPAN session.
Table 26-2 Making Modifications to an Active RSPAN Session
Switch Action
A (source) Disable the RSPAN session.
Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide
26-14
Table 26-1 for the necessary commands to configure this RSPAN session.
Table
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 –
for the necessary commands to disable an RSPAN session and to add or remove source ports
26-1, the RSPAN session may be disabled in Switch A or B or
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
RSPAN CLI Commands
set rspan disable source 901
—
Chapter 26 Configuring SPAN and RSPAN
Figure 26-3 shows an RSPAN
(access)
Figure 26-3 for reference; see
Release 8.1
Table 26-1
78-15486-01