High Availability; Virtualization Support; Licensing Requirements For Cdp; Prerequisites For Cdp - Cisco Nexus 7000 Series Configuration Manual

Configuring CDP
• A VTP domain name is configured
You can view the VTP information with the show cdp neighbors detail command.

High Availability

Cisco NX-OS supports both stateful and stateless restarts and switchover for CDP. For more information on
high availability, see the Cisco Nexus 7000 Series NX-OS High Availability and Redundancy Guide.

Virtualization Support

Cisco NX-OS supports multiple instances of CDP, one instance per virtual device context (VDC). By default,
Cisco NX-OS places you in the default VDC unless you specifically configure another VDC. For more
information on VDCs, see the Cisco Nexus 7000 Series NX-OS Virtual Device Context Configuration Guide.

Licensing Requirements for CDP

Product
Cisco
NX-OS

Prerequisites for CDP

If you configure VDCs, install the appropriate license and enter the desired VDC. See the Cisco Nexus 7000
Series NX-OS Virtual Device Context Configuration Guide for configuration information and the Cisco NX-OS
Licensing Guide for licensing information.

Guidelines and Limitations for CDP

CDP has the following configuration guidelines and limitations:
• CDP can discover up to 256 neighbors per port if the port is connected to a hub with 256 connections.
• CDP must be enabled on the device or you cannot enable it on any interfaces.
• You can configure CDP on physical interfaces and port channels only.
• CDP is not supported for the Cisco Nexus 2000 Series Fabric Extender.
License Requirement
CDP requires no license. Any feature not included in a license package is bundled with the
nx-os image and is provided at no extra charge to you. For a complete explanation of the
Cisco NX-OS licensing scheme, see the Cisco NX-OS Licensing Guide.
Cisco Nexus 7000 Series NX-OS System Management Configuration Guide
High Availability
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