Configuring Span; Span Hardware Requirements; Understanding How Span Works - Cisco WS-X6066-SLB-APC - Content Switching Module Software Manual

Chapter 38 Configuring SPAN and RSPAN

Configuring SPAN

These sections describe how to configure SPAN:
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SPAN Hardware Requirements

All Catalyst 6000 family switch supervisor engines support the SPAN feature.

Understanding How SPAN Works

SPAN selects network traffic for analysis by a network analyzer such as a SwitchProbe device or other
Remote Monitoring (RMON) probe. SPAN mirrors traffic from one or more source ports on any VLAN,
from one or more VLANs, or from the sc0 console interface to a destination port for analysis (see
Figure
port 10. A network analyzer on Ethernet port 10 receives all network traffic from Ethernet port 5 without
being physically attached to it.
Figure 38-1 SPAN Configuration
E1
For SPAN configuration, the source ports and the destination port must be on the same switch.
SPAN does not affect the switching of network traffic on source ports; a copy of the packets received or
transmitted by the source ports are sent to the destination port.
78-13315-02
SPAN Hardware Requirements, page 38-5
Understanding How SPAN Works, page 38-5
SPAN Configuration Guidelines, page 38-6
Configuring SPAN from the CLI, page 38-7
38-1). In Figure 38-1, all traffic on Ethernet port 5 (the source port) is mirrored to Ethernet
1 2 3 4 5 6 7 8 9 10 11 12
E6 E7
E5 E8
E4 E9
E3
E2
Network analyzer
Port 5 traffic mirrored
on port 10
E11
E12
E10
Catalyst 6000 Family Software Configuration Guide—Releases 6.3 and 6.4
Configuring SPAN
38-5