Configuring for Network Management Applications

CDP

An SNMP utility can progressively discover CDP devices in a network by:

1.Reading a given device’s CDP Neighbor table (in the Management Infor­ mation Base, or MIB) to learn about other, neighbor CDP devices

2.Using the information learned in step 1 to go to and read the neighbor devices’ CDP Neighbors tables to learn about additional CDP devices, and so on

This section describes CDP operation in a Series 5300XL switches. For infor­ mation on how to use an SNMP utility to retrieve the CDP information from the switch’s CDP Neighbors table (in the switch’s MIB), refer to the documen­ tation provided with the particular SNMP utility. For information on the object identifiers in the CDP MIB, see “CDP Neighbor Data and MIB Objects” on page 10-26.

CDP Terminology

CDP Device: A switch, server, router, workstation, or other device running CDP.

CDP-Aware:A device that has CDP in its operating code (with CDP either enabled or disabled in that device).

CDP-Disabled: A CDP-aware device on which CDP is currently disabled.

Non-CDP Device: A device that does not have CDP in its operating code.

CDP Neighbor: A CDP device that is either directly connected to another CDP device or connected to that device by a non-CDP device, such as some hubs.

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