Configuring Span On The Switch; Span Hardware Requirements; Understanding How Span Works - Cisco WS-C6506 Software Manual

Configuring SPAN on the Switch

See
You can configure multiple ports or VLANs as sources for each SPAN session, and you can configure a
single source port for each Mini Protocol Analyzer session.
Table 49-1
SPAN, RSPAN, and Mini Protocol Analyzer Sessions
rx or both SPAN sessions
tx SPAN sessions
Mini Protocol Analyzer sessions
tx, rx, or both RSPAN source sessions
RSPAN destinations
Total SPAN sessions
1. Each RSPAN source session or Mini Protocol Analyzer session reduces the limit for rx or both SPAN sessions by one.
2. Supervisor Engine 720 supports two RSPAN source sessions.
3. 2 rx or both SPAN sessions + 4 tx SPAN sessions + 24 RSPAN destination sessions = 30 total SPAN sessions. A Mini
Configuring SPAN on the Switch
These sections describe how to configure SPAN:
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SPAN Hardware Requirements

All Catalyst 6500 series switch supervisor engines support SPAN.

Understanding How SPAN Works

SPAN selects the network traffic for analysis by a network analyzer such as a SwitchProbe device or
other Remote Monitoring (RMON) probe. SPAN mirrors the traffic from one or more source ports on
any VLAN, from one or more VLANs, or from the sc0 console interface to the destination ports for
analysis (see
Ethernet port 10. A network analyzer on Ethernet port 10 receives all network traffic from Ethernet
port 5 without being physically attached to it.
Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
49-6
Table 49-1 for the supported combinations of SPAN, RSPAN, and Mini Protocol Analyzer sessions.
SPAN RSPAN and Mini Protocol Analyzer Session Limits
Protocol Analyzer session counts as one rx or both SPAN session.
SPAN Hardware Requirements, page 49-6
Understanding How SPAN Works, page 49-6
SPAN Configuration Guidelines, page 49-7
Configuring SPAN from the CLI, page 49-8
Figure 49-1). In
Chapter 49
Figure 49-1, all traffic on Ethernet port 5 (the source port) is mirrored to
Configuring SPAN, RSPAN and the Mini Protocol Analyzer
Catalyst 6500 Series Switches
1
2
4
1
2
1
24
3
30
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