Cisco 300 Series User Manual

CDP Commands
217 OL-32830-01 Command Line Interface Reference Guide
8
• secondary—Displays information about neighbors from the secondary
cache.
Default Configuration
If an interface ID is not specified, the command displays information for the
neighbors of all ports.
If detail or secondary are not specified, the default is secondary.
Command Mode
Privileged EXEC mode
User Guidelines
CDP supports two caches to save received CDP messages:
• main cache
• secondary cache
The main cache contains the full received CDP messages about limited number of
the neighbors.
The secondary cache contains partially information about all neighbors.
Use the show cdp neighbors [
interface-id ] detail command to display the main
cache.
Use the show cdp neighbors [
interface-id ] secondary command to display the
Secondary cache.
Example
switchxxxxxx# show cdp neighbors
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
S - Switch, H - Host, I - IGMP, r - Repeater,P - VoIP Phone,
M - Remotely-Managed Device, C - CAST Phone Port, W - Two-Port MAC Relay

Cisco 300 Series Specifications

General

Model	Cisco 300 Series
Category	Switch
Dimensions	Varies by model
Weight	Varies by model
Power over Ethernet (PoE)	Available on select models
Management	Web-based GUI, SNMP, CLI
VLANs	Up to 256
Security Features	ACLs, 802.1X, Port Security
Humidity	10% to 90% non-condensing
Ports	8, 16, 24, 48