Configuring the Switch
3-136
3
Configuring Remote Port Mirroring
Remote Switched Port Analyzer (RSPAN) allows you to mirror traffic from remote
switches for analysis at the destination port on a local switch. Traffic generated on
specified source ports for each RSPAN session is carried over a user-specified
RSPAN VLAN dedicated to that RSPAN session in all participating switches.
Monitored traffic from one or more sources is copied onto the RSPAN VLAN through
IEEE 802.1Q trunk or hybrid ports that carry it to any RSPAN destination port
monitoring the RSPAN VLAN as shown in the figure below.
Command Usage
Configuration Guidelines
Take the following step to configure an RSPAN session:
1. Use the VLAN Static List (page 3-177) to reserve a VLAN for use by RSPAN
(marking the “Remote VLAN” field on this page. (Default VLAN 1 and switch
cluster VLAN 4093 are prohibited.)
2. Set up the source switch on the RSPAN Configuration page:
a) Specify the mirror session, the source port, and the traffic type to monitor
(Rx, Tx or Both). After entering these items, click Add to create an entry in the
Sessions table.
b) Specify the mirror session, the switch’s role (Source), the RSPAN VLAN, and
the uplink ports. After specifying each uplink port, click Add to create an entry.
3. Set up all intermediate switches on the RSPAN Configuration page, entering the
mirror session, the switch’s role (Intermediate), the RSPAN VLAN, and the uplink
port(s). Click Add after specifying each uplink port.
Source Switch
Intermediate Switch
Intermediate Switch
Destination Switch
Source Port
Destination Port
Uplink Port
Uplink Port
Uplink Port
Uplink Port
Ingress or egress traffic
is mirrored onto the RSPAN
VLAN from here.
Tagged or untagged traffic
from the RSPAN VLAN is
analyzed at this port.
RPSAN VLAN
Summary of Contents for DG-GS1550
Page 24: ...Tables xxx ...
Page 46: ...Initial Configuration 2 10 2 ...
Page 642: ...Command Line Interface 4 342 4 ...
Page 664: ...Index 8 Index ...
Page 665: ......