Configuring for Network Management Applications

CDP

CDP MIB data is groupedbytype. That is, the Address Types for all detected CDP devices are listed first, then the IP addressesofthe source devices, and so on.

The first number after the MIB string is the switch port on which the data point for that entry was received. In this case, the switch CDP packets on ports A1 and A3. (For CDP purposes, port numbering is consecutive, from 1 to n, where n is the last consecutive port on the switch.)

Figure 13-21. Example of CDP Neighbor Data

For the current switch MIB, go to the HP ProCurve World Wide Web site at:

http://ww.hp.com/go/hpprocurve

Click on software, then MIBs.

Operating Notes

Neighbor Maximum. The switch supports up to 60 entries (neighbors) in the CDP Neighbors table. Remember that multiple CDP devices can be neighbors on the same port if they are connected to the switch through a non-CDP device.

CDP Version Data. The switch uses CDP-V1, but do not include IP prefix information, which is a router function; not a switch application.

Port Trunking with CDP. Where a static or LACP trunk forms the link between the switch and another CDP device, only one physical link in the trunk is used to transmit outbound CDP packets.

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