Cisco SFS7000P-SK9 Command Reference - Page 43

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Cisco SFS 7000 Series Product Family Command Reference Guide

OL-9163-02

Chapter 2

Administrative Commands

cdp advertise-v2

cdp advertise-v2

To enable Cisco Discovery Protocol Version 2 (CDPv2) advertising functionality on a device, use the

cdp advertise-v2

command in global configuration mode. To disable advertising CDPv2 functionality,

use the

no

form of the command.

cdp advertise-v2

no cdp advertise-v2

Syntax Description

This command has no arguments or keywords

Defaults

Enabled. CDP is running on chassis boot.

Command Modes

Global Configuration (config) mode.

Usage Guidelines

Platform Availability:

Cisco SFS 3001, Cisco SFS 7000, Cisco SFS 7008, Cisco SFS 3012, Cisco 4x InfiniBand Switch Module

for IBM BladeCenter

Privilege Level:

Unrestricted and general read-write user.

Each device configured for CDP sends periodic messages, known as advertisements, to a multicast

address. Each device advertises at least one address at which it can receive SNMP messages. The

advertisements also contain time-to-live, or holdtime, information, which indicates the length of time a

receiving device should hold CDP information before discarding it. Each device also listens to the

periodic CDP messages sent by others in order to learn about neighboring devices and determine when

their interfaces to the media go up or down.

CDP Version 2 is the most recent release of the protocol. With CDP Version-2, detailed information is

provided on the VLAN Trunking Protocol (VTP) management domain and duplex modes of neighbor

devices, CDP-related counters, and VLAN IDs of connecting ports. This can help the Ethernet gateway

configuration. CDP is run on server switches over management-Ethernet interfaces. CDP Version 2 has

three additional type-length values (TLVs): VTP Management Domain Name, Native VLAN, and

full/half-Duplex.

Note

CDP runs by default when a chassis boots up, but CDP is only learning in this mode. If any neighbors

are advertising, CDP will identify them.

Examples

The following example sets the CDP advertisement for CDP Version 2:

SFS-7000P(config)#

cdp advertise-v2

Section	Page
Cisco SFS 7000 Series Product Family Command Reference Guide	1
Contents	3
Preface	11
Audience	11
Organization	11
Conventions	12
Related Documentation	13
Obtaining Documentation	13
Cisco.com	13
Product Documentation DVD	13
Ordering Documentation	14
Documentation Feedback	14
Cisco Product Security Overview	14
Reporting Security Problems in Cisco Products	15
Obtaining Technical Assistance	15
Cisco Technical Support & Documentation Website	16
Submitting a Service Request	16
Definitions of Service Request Severity	16
Obtaining Additional Publications and Information	17
Using the CLI	19
Setting up the Switch	19
Starting A CLI Session	20
Logging In	21
Authentication	21
Customizing the Login Prompt	22
Entering CLI Modes	22
Using User Execute Mode	23
Using Privileged Execute Mode	23
Using Global Configuration Mode	23
Exiting CLI Modes	24
Quick Help	24
Command Abbreviation	25
Editing the CLI	25
Exiting the CLI Session	26
Specifying Modules and Ports	27
Slot#/Port# Pairs	27
Ranges	27
Lists	27
The “all” Keyword	28
Using the Documentation	28
Synopsis	28
Syntax	28
Platform Availability	28
Command Modes	29
Privilege Level	29
Usage Guidelines	29
Examples	29
Defaults	29
Related Commands	29
Administrative Commands	31
Fibre Channel Commands	115
InfiniBand Commands	139
IP Commands	155
Show Commands	167
Diagnostic Commands	381
Running Diagnostic Tests	381

Cisco SFS7000P-SK9 Command Reference - Page 43

Syntax Description, Defaults, Command Modes, Usage Guidelines, Examples, cdp advertise-v2

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