user manual
Table Of Contents
- Cisco Content Services Switch Routing and Bridging Configuration Guide
- Contents
- Preface
- Configuring Interfaces and Circuits
- Interface and Circuit Overview
- Configuring Interfaces
- Configuring an Interface
- Entering a Description for the Interface
- Configuring Interface Duplex and Speed
- Setting Interface Maximum Idle Time
- Bridging an Interface to a VLAN
- Specifying VLAN Trunking for an Interface
- Configuring Spanning-Tree Bridging for a VLAN or a Trunked Interface
- Configuring Port Fast on an Interface
- Showing Interface Configurations
- Shutting Down an Interface
- Shutting Down All Interfaces
- Restarting an Interface
- Restarting All Interfaces
- Configuring Circuits
- Configuring RIP for an IP Interface
- Configuring the Switched Port Analyzer Feature
- Configuring Spanning-Tree Bridging for the CSS
- CSS Spanning-Tree Bridging Quick Start
- Configuring Spanning-Tree Bridge Aging-Time
- Configuring Spanning-Tree Bridge Forward-Time
- Configuring Spanning-Tree Bridge Hello-Time
- Configuring Spanning-Tree Bridge Max-Age
- Configuring Spanning-Tree Bridge Priority
- Disabling Bridge Spanning-Tree
- Showing Bridge Configurations
- Configuring Open Shortest Path First (OSPF)
- OSPF Overview
- CSS OSPF Configuration Quick Start
- Configuring OSPF on the CSS
- Configuring OSPF on a CSS IP Interface
- Showing OSPF Information
- OSPF Configuration in a Startup-Configuration File
- Configuring the Address Resolution Protocol
- Configuring Routing Information Protocol
- Configuring the Internet Protocol
- IP Configuration Quick Start
- Configuring an IP Route
- Disabling an Implicit Service for the Static Route Next Hop
- Configuring an IP Source Route
- Configuring the IP Record Route
- Configuring Box-to-Box Redundancy
- Configuring IP Equal-Cost Multipath
- Forwarding IP Subnet Broadcast Addressed Frames
- Configuring IP Unconditional Bridging
- Configuring IP Opportunistic Layer 3 Forwarding
- Showing IP Configuration Information
- Configuring the Cisco Discovery Protocol
- Configuring the DHCP Relay Agent
- Index

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Cisco Content Services Switch Routing and Bridging Configuration Guide
OL-4580-01
Chapter 7 Configuring the Cisco Discovery Protocol
Enabling CDP
The following running-configuration example shows the results of entering the
commands in Table 7-1.
!*************************** GLOBAL ***************************
cdp run
cdp holdTime 255
cdp timer 120
Enabling CDP
By default, CDP is disabled for the CSS. Use the cdp run global configuration
command to enable CDP transmissions from the CSS to other neighboring Cisco
CDP-compatible devices on the network.
For example:
(config)# cdp run
To disable CDP transmissions on the CSS, enter:
(config)# no cdp run
Setting the CDP Hold Time
The CDP hold time is the amount of time a receiving device retains the CDP
information sent by the CSS (time-to-live information) before discarding this
information. If a neighboring device does not receive a CDP message before the
hold time expires, the neighboring device drops the CSS as a neighbor. By default,
the hold time is 180 seconds. To specify the hold time, use the cdp holdTime
global configuration command. Valid entries are 10 to 255 seconds.
To specify a CDP hold time of 255 seconds for the receiving device, enter:
(config)# cdp holdTime 255
To reset the CDP hold time back to the default value of 180 seconds, enter:
(config)# no cdp holdTime