12-13
Configuring for Network Management Applications
CDP
M
oni
to
rin
g
and
M
ana
gi
ng
th
e
Sw
itc
h
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 Switch 4108GL. For information 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 documentation
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
25.
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.
General CDP Operation
The switch stores information about adjacent CDP devices in a
CDP Neigh-
bors table
maintained in the switch’s MIB (Management Information Base).
This data is available to SNMP-based applications designed to read CDP data
from the MIB. For example:
Summary of Contents for ProCurve 4108gl Bundle
Page 1: ...hp procurve switch 4108gl management and configuration guide www hp com go hpprocurve ...
Page 2: ......
Page 40: ...2 16 Using the Menu Interface Where To Go From Here Using the Menu Interface ...
Page 154: ...8 24 Time Protocols SNTP Messages in the Event Log Time Protocols ...
Page 350: ...14 44 Port Based Virtual LANs VLANs and GVRP GVRP Port Based Virtual LANs VLANs and GVRP ...
Page 383: ...16 13 Spanning Tree Protocol STP How STP Operates Spanning Tree Protocol STP ...
Page 384: ...16 14 Spanning Tree Protocol STP How STP Operates Spanning Tree Protocol STP ...
Page 442: ...18 30 Troubleshooting Restoring a Flash Image Troubleshooting ...
Page 466: ...B 6 MAC Address Management Determining MAC Addresses MAC Address Management ...
Page 470: ......
Page 481: ...Index 11 Index write memory effect on menu interface 2 13 X Xmodem OS download A 6 ...
Page 482: ......