OmniSwitch AOS Release 8 Network Configuration Guide December 2017 page 34-1
34 Diagnosing Switch
Problems
Several tools are available for diagnosing problems that occur with the switch. These tools include:
• Port Mirroring
• Port Monitoring
• sFlow
• Remote Monitoring (RMON) probes
• Switch Health Monitoring
Port mirroring copies all incoming and outgoing traffic from configured mirror ports 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. sFlow is used for measuring high speed
switched network traffic. It is also used for collecting, storing, and analyzing the traffic data. 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 port mirroring, port monitoring, remote monitoring (RMON) probes, sFlow, and
switch health features and explains how to configure the same 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 34-13 or
“Deleting A Mirroring Session” on page 34-16.
• Protection from Spanning Tree changes (Port Mirroring)—see “Unblocking Ports (Protection from
Spanning Tree)” on page 34-14.
• Enabling or Disabling Port Mirroring Status—see “Enabling or Disabling Mirroring Status” on
page 34-14 or “Disabling a Mirroring Session (Disabling Mirroring Status)” on page 34-14.
• Configuring Port Mirroring Direction—see “Configuring Port Mirroring Direction” on page 34-15.
• Enabling or Disabling a Port Mirroring Session—see “Enabling or Disabling a Port Mirroring Session
(Shorthand)” on page 34-15.
• Configuring a Port Monitoring Session—see “Configuring a Port Monitoring Session” on page 34-19.
• Enabling a Port Monitoring Session—see “Enabling a Port Monitoring Session” on page 34-19.
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