Using Discovery Protocols; About Cisco Discovery Protocol And Link Layer Discovery Protocol; Configuring Discovery Protocols - HP Rx2620-2 - Integrity - 0 MB RAM User Manual

4 Using discovery protocols

This chapter describes how to configure and monitor the discovery protocols enabled by an
Integrity Essentials Intelligent Networking Pack license.

About Cisco Discovery Protocol and Link Layer Discovery Protocol

CDP and LLDP are layer two, neighbor device discovery protocols that run on all networking
devices such as routers, access servers, bridges, and switches. Using CDP or LLDP, a device can
advertise its existence to other devices and also receive information about neighboring devices
on the same LAN or on the remote side of a WAN.
CDP and LLDP are media and protocol independent protocols that allow two systems to learn
about each other even if they use different network layer protocols. CDP and LLDP obtain
protocol addresses of neighboring devices and discover the platform of those devices including
information about the interfaces a router uses. The HP NCU supports CDP Version 1, CDP
Version 2, and LLDP.
The following information is provided by CDP Version 1, CDP Version 2 and LLDP:
• Protocol Type
• Device name
• Port ID
• Platform name of the device
• Type of device
The following information is provided only with CDP Version 2 and LLDP:
• VTP management domain name
• Native Vlan ID for untagged packets on the interface
• Duplex
Each team member configured for CDP or LLDP registers an address at which it can receive
CDP or LLDP messages. The advertisements that come from network devices such as the switch
will contain this information.
A network administrator can use the information from CDP or LLDP to build a basic picture of
their network, which can be used to detect misconfigurations and troubleshooting problems on
the network.

Configuring discovery protocols

From the Discovery Protocols tab, you can configure CDP and LLDP settings for the selected
team. These advanced teaming features are disabled unless a valid Integrity Essentials Intelligent
Networking Pack license is installed on the system. For more information on how to install a
license, refer to Chapter 1.
To access the Discovery Protocols tab for a team:
1. On the NCU main window, select a team.
2. Click Properties to display the Team Properties window.
3. Select the Discovery Protocols tab to display the Team Discovery Protocols tab.
About Cisco Discovery Protocol and Link Layer Discovery Protocol 43