Cisco CATALYST 2960 Command Reference Guide

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Catalyst 2960 Switch Command Reference
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Chapter 2 Catalyst 2960 Switch Cisco IOS Commands
renew ip dhcp snooping database
renew ip dhcp snooping database
Use the renew ip dhcp snooping database privileged EXEC command to renew the DHCP snooping
binding database.
renew ip dhcp snooping database [{flash:/filename | ftp://user:password@host/filename |
nvram:/filename | rcp://user@host/filename | tftp://host/filename}] [validation none]
Syntax Description
Defaults No default is defined.
Command Modes Privileged EXEC
Command History
Usage Guidelines If you do not specify a URL, the switch tries to read the file from the configured URL.
Examples This example shows how to renew the DHCP snooping binding database without checking CRC values
in the file:
Switch# renew ip dhcp snooping database validation none
You can verify your settings by entering the show ip dhcp snooping database privileged EXEC
command.
Related Commands
flash:/filename (Optional) Specify that the database agent or the binding file is in the flash
memory.
ftp://user:password
@host/filename
(Optional) Specify that the database agent or the binding file is on an FTP
server.
nvram:/filename (Optional) Specify that the database agent or the binding file is in the NVRAM.
rcp://user@host/file
name
(Optional) Specify that the database agent or the binding file is on a Remote
Control Protocol (RCP) server.
tftp://host/filename (Optional) Specify that the database agent or the binding file is on a TFTP
server.
validation none (Optional) Specify that the switch does not verify the cyclic redundancy check
(CRC) for the entries in the binding file specified by the URL.
Release Modification
12.2(25)FX This command was introduced.
Command Description
ip dhcp snooping Enables DHCP snooping on a VLAN.

Cisco CATALYST 2960 Specifications

General

Manageable	Yes
Stacking	No
Model	Catalyst 2960 Series Switches
Power over Ethernet (PoE)	Available on some models (IEEE 802.3af)
VLANs	255 active VLANs
Features	QoS
Operating Temperature	32 to 113°F (0 to 45°C)
Relative Humidity	10% to 85% non-condensing
Power Consumption	Varies by model (30W to 400W)