Configuring CDP

Cisco Discovery Protocol (CDPCisco Discovery Protocol. CDP is a proprietary Data Link Layer protocol developed by Cisco Systems. CDP runs on Cisco devices and enables networking applications to learn about the neighboring devices directly connected to the network.) is used to share information about connected network devices. It is used to share information such as device type, model, interfaces, IP addresses, operating system versions, and VLANsVirtual Local Area Network. In computer networking, a single Layer 2 network may be partitioned to create multiple distinct broadcast domains, which are mutually isolated so that packets can only pass between them through one or more routers; such a domain is referred to as a Virtual Local Area Network, Virtual LAN, or VLAN.. You can configure CDP modes for the switch.

To enable CDP for the switch, complete the following steps:

1. In the Network Operations app, select one of the following options:

To select a switch group in the filter:

a. Set the filter to a group containing at least one switch.

The dashboard context for the group is displayed.

b. Under Manage, click Devices > Switches.

c. Click the Config icon to view the switch configuration dashboard.

To select a switch in the filter:

a. Set the filter to Global or a group containing at least one switch.

b. Under Manage, click Devices > Switches.

A list of switches is displayed in the List view.

c. Click a switch under Device Name.

The dashboard context for the switch is displayed.

d. Under Manage, click Device.

The tabs to configure the switch is displayed.

2. Click System > CDP. The CDP page is displayed.

3. To enable CDP for the switch, move the CDP toggle switch to the on position.

4. Select any of the following modes from the Mode drop-down:

rx-only—Switch only receives CDP information from other connected devices and stores this information in the database. However, it does not send its own information to other devices.

pass-through—CDP information passes through the switch to other connected devices.

pre-standard-voice—Enables CDP-compatible voice VLAN discovery with pre-standard VoIPVoice over IP. VoIP allows transmission of voice and multimedia content over an IP network. phones.

5. Click Save Settings.