Generic Online Diagnostics (Gold); Embedded Event Manager (Eem) - Cisco Catalyst 6500-E Series Manual

Switch as the backbone of a unified access campus architecture
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Generic Online Diagnostics (GOLD)

The Cisco Catalyst 6500-E with Supervisor Engine 2T supports diagnostic capabilities that allow a network
administrator to test and verify the hardware functionality of the switch while the switch is connected to a live
network or before deploying the switch in the production network. The online diagnostics contain packet switching
tests that check different hardware components and verify the data path and control signals. These tests can
prevent future network issues by taking corrective actions before a catastrophic failure and can provide valuable
information when troubleshooting a network issue.
GOLD tests are categorized as bootup, on-demand, scheduled, or health-monitoring diagnostics. Bootup
diagnostics run during bootup, on-demand diagnostics run from the command-line interface (CLI), scheduled
diagnostics run at user-designated intervals or specified times when the switch is connected to a live network, and
health-monitoring diagnostics run in the background. The nondisruptive online diagnostic tests run as part of
background health monitoring. Either disruptive or nondisruptive tests can be run at the user's request (on
demand). Figure 7 shows an example of a health-monitoring diagnostic test.
Figure 7.
GOLD Health Monitoring of Forwarding Path
In this example, the system is sending health-monitoring diagnostic packets every 6 seconds to test the data and
control path between the Supervisor Engine 2T and any DFC4-equipped modules. The test also makes sure of
Layer 2 MAC address consistency across Layer 2 MAC address tables. If the test fails 10 consecutive times, then
the module is reset.
GOLD also has the ability to run a full system check before deploying the switch in the live network. This can be
accomplished with the diagnostic start system test all command, which runs all possible GOLD tests for a
particular hardware configuration.

Embedded Event Manager (EEM)

The ability to quickly react to events within the system is a critical piece to maintaining the kind of stable, reliable
infrastructure required by BYOD, video, and collaboration. The Cisco Catalyst 6500-E with Supervisor Engine 2T
meets this requirement through the support of the Embedded Event Manager (EEM). Cisco IOS Software EEM is a
powerful and flexible subsystem that provides real-time network event detection and onboard automation that
gives the network administrator the ability to adapt the behavior of network devices to align with their business
needs.
© 2013 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information.
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