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OmniSwitch 6600 Family Network Configuration Guide April 2006 page 27-1
27 Diagnosing Switch
Problems
Several tools are available for diagnosing problems that may occur with the switch. These tools include
• Port Mirroring
• Port Monitoring
• Remote Monitoring (RMON) probes
• Switch Health Monitoring
Port mirroring copies all incoming and outgoing traffic from a single mirrored Ethernet port to a second
mirroring Ethernet port, where it can be monitored with a Remote Network Monitoring (RMON) probe or
network analysis device without disrupting traffic flow on the mirrored port. The port monitoring feature
allows you to examine packets to and from a specific Ethernet port. Switch Health monitoring software
checks previously-configured threshold levels for the switch’s consumable resources, and notifies the
Network Monitoring Station (NMS) if those limits are violated.
In This Chapter
This chapter describes the port mirroring, remote monitoring (RMON) probes, and switch health features
and how to configure them through the Command Line Interface (CLI).
Configuration procedures described in this chapter include:
• Creating or Deleting a Port Mirroring Session—see “Creating a Mirroring Session” on page 27-15 or
“Deleting A Mirroring Session” on page 27-19.
• Protection from Spanning Tree changes (Port Mirroring)—see “Unblocking Ports (Protection from
Spanning Tree)” on page 27-15.
• Enabling or Disabling Port Mirroring Status—see “Enabling or Disabling Mirroring Status” on
page 27-16 or “Disabling a Mirroring Session (Disabling Mirroring Status)” on page 27-16.
• Configuring Port Mirroring Direction—see “Configuring Port Mirroring Direction” on page 27-17.
• Enabling or Disabling a Port Mirroring Session—see “Enabling or Disabling a Port Mirroring Session
(Shorthand)” on page 27-18.
• Configuring a Port Monitoring Session—see “Configuring a Port Monitoring Session” on page 27-20.
• Enabling a Port Monitoring Session—see “Enabling a Port Monitoring Session” on page 27-21.
• Disabling a Port Monitoring Session—see “Disabling a Port Monitoring Session” on page 27-21.