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Configuring RSPAN
Reflector
Rspan Vlan
Admin Source
Oper Source
Direction
Incoming Packets: -
Learning
Filter
Status
Console> (enable) 2001 May 02 13:25:59 %SYS-5-SPAN_CFGSTATECHG:remote span sourc
e session active for remote span vlan 500
To configure RSPAN source VLANs, perform this task in privileged mode:
Task
Step 1
Configure RSPAN source VLANs. All the ports
in the source VLAN become operational source
ports.
Step 2
Verify the RSPAN configuration.
This example shows how to specify VLAN 200 as a source VLAN for RSPAN VLAN 500:
Console> (enable) set rspan source 200 500
Rspan Type
Destination
Rspan Vlan
Admin Source
Oper Source
Direction
Incoming Packets: -
Learning
Multicast
Filter
Console> (enable)
To configure RSPAN destination ports, perform this task in privileged mode:
Task
Step 1
Configure RSPAN destination ports. Use this
command on each of the destination switches
participating in RSPAN.
Step 2
Verify the RSPAN configuration.
Caution
If the RSPAN destination port is connected to another device and reception of incoming packets is
enabled (using the inpkts enable keywords), the RSPAN destination port receives traffic for the VLAN
that the RSPAN destination port belongs to. However, the RSPAN destination port does not participate
in spanning tree for that VLAN, so avoid creating network loops with the RSPAN destination port.
This example shows how to specify port 3/1 as the RSPAN destingation port in VLAN 500:
Console> (enable) set rspan destination 3/1 500
Rspan Type
Destination
Software Configuration Guide—Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4
25-12
: Port 2/34
: 500
: Port 2/3
: Port 2/3
: transmit/receive
: -
: 50,850
: active
: Source
: -
: 500
: VLAN 200
: None
: transmit/receive
: -
: enabled
: -
: Destination
: Port 3/1
Chapter 25
Command
set rspan source {mod/ports... | vlans...}
{rspan_vlan} reflector mod/port [rx | tx | both]
[filter vlans...] [create]
show rspan
Command
set rspan destination {mod_num/port_num}
{rspan_vlan} [inpkts {enable | disable}]
[learning {enable | disable}] [create]
show rspan
Configuring SPAN and RSPAN
78-12647-02
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Table of Contents
Troubleshooting
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