Rspan Configuration Examples; Configuring A Single Rspan Session; Modifying An Active Rspan Session - Cisco WS-C4003 - Catalyst 4000 Chassis Switch Software Configuration Manual

Configuring RSPAN

RSPAN Configuration Examples

The following sections have several examples on how to configure 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 25-3 Single RSPAN Session
Switch A
Table 25-1 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 25-2
from an RSPAN session.
Software Configuration Guide—Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4
25-14
Table 25-1 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
25-1, 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
Chapter 25 Configuring SPAN and RSPAN
Figure 25-3 shows an RSPAN
(access)
Figure 25-3 for reference; see
Table 25-1
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