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12-12
Configuring for Network Management Applications
CDP
Monitoring and Managing
the Switch
CDP
CDP Features
Introduction
In a Switch 4108GL, CDP-v1 (Cisco Discovery Protocol, version 1) provides
data that aids SNMP-based network mapping utilities designed to discover
devices running CDP in a network. To make this data available, the switch
transmits information about itself via CDP packets to adjacent devices, and
also receives and stores information about adjacent devices running CDP. This
enables each CDP device to receive and maintain identity data on each of its
CDP neighbors and pass this information off to an SNMP utility designed to
query the CDP area of the device’s MIB.
Note
To take advantage of CDP in Switch 4108GL, you should have a working
knowledge of SNMP operation and an SNMP utility capable of polling the
switches for CDP data. HP’s implementation of CDP places specific data into
the switch’s Management Information Base (MIB). However, retrieval of this
data for network mapping is dependent on the operation of your SNMP utility.
Refer to the documentation provided with the utility.
Feature Default Menu CLI Web
view the switch’s CDP configuration n/a — page 12-19 —
view the switch’s CDP Neighbors table n/a — page 12-19 —
clear (reset) the CDP Neighbors table n/a — page 12-20 —
enable or disable CDP on the switch enabled — page 12-21 —
enable or disable CDP operation on an
individual port
enabled — page 12-22 —
change the transmit interval for the switch’s
CDP packets
60 seconds — page 12-22 —
change the hold time (time-to-live for CDP
packets the switch generates)
180 seconds — page 12-23 —