Cisco NCS 4200 Series - Prerequisites for Configuring Local Span and RSPAN

CHAPTER 2
Configuring Switched Port Analyzer
This document describes how to configure local Switched Port Analyzer (SPAN) and remote SPAN (RSPAN).
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Prerequisites for Configuring Local Span and RSPAN, page 7
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Restrictions for Local Span and RSPAN, page 8
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Understanding Local SPAN and RSPAN, page 9
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Configuring Local SPAN and RSPAN, page 15
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Sample Configurations, page 21
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Verifying Local SPAN and RSPAN, page 22
Prerequisites for Configuring Local Span and RSPAN
Local Span
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Use a network analyzer to monitor interfaces.
RSPAN
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Before configuring RSPAN sessions, you must first configure:
1
Source interface
2
Destination BD
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MAC learning should be disabled using the mac-address-table limit [rspan vlan/bd] maximum num
action limit command before configuring the RSPAN VLAN.
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RSPAN VLAN must be dedicated and entire Layer 2 devices in the network must be aware of the VLAN.
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RSPAN source and destinations switches separated by the VPLS pseudowire must be aware of the
RSPAN VLAN/ brige domain (BD).
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Pseudowire must be dedicated for RSPAN traffic.
Layer 2 Configuration Guide for Cisco NCS 4200 Series
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