Cisco Catalyst 3120 User Manual

CHAPTER
6-1
Cisco Catalyst Blade Switch 3120 for HP Software Configuration Guide
OL-12247-01
6
Administering the Switch
This chapter describes how to perform one-time operations to administer the switch. Unless otherwise
noted, the term switch refers to a standalone switch and to a switch stack.
This chapter consists of these sections:
• Managing the System Time and Date, page 6-1
• Configuring a System Name and Prompt, page 6-14
• Creating a Banner, page 6-17
• Managing the MAC Address Table, page 6-19
• Managing the ARP Table, page 6-27
Managing the System Time and Date
You can manage the system time and date on your switch using automatic configuration, such as the
Network Time Protocol (NTP), or manual configuration methods.
Note For complete syntax and usage information for the commands used in this section, see the Cisco IOS
Configuration Fundamentals Command Reference, Release 12.2.
These sections contain this configuration information:
• Understanding the System Clock, page 6-1
• Understanding Network Time Protocol, page 6-2
• Configuring NTP, page 6-3
• Configuring Time and Date Manually, page 6-11
Understanding the System Clock
The heart of the time service is the system clock. This clock runs from the moment the system starts up
and keeps track of the date and time.
The system clock can then be set from these sources:
• NTP
• Manual configuration

Cisco Catalyst 3120 Specifications

General

Ports	24 x 10/100 + 2 x SFP
MAC Address Table Size	8K entries
Power Supply	AC 120/230 V (50/60 Hz)
Device Type	Switch
Form Factor	Rack-mountable
Routing Protocol	RIP-1, RIP-2, static IP routing
Remote Management Protocol	SNMP 1, RMON 1, RMON 2, RMON 3, RMON 9, Telnet, SNMP 3, SNMP 2c, HTTP, HTTPS, TFTP, CLI
Features	DHCP support, VLAN support, auto-negotiation, IPv6 support, Access Control List (ACL) support, Quality of Service (QoS), Rapid Spanning Tree Protocol (RSTP) support, Multiple Spanning Tree Protocol (MSTP) support, IGMP snooping
Compliant Standards	IEEE 802.3, IEEE 802.3u, IEEE 802.3z, IEEE 802.1D, IEEE 802.1Q, IEEE 802.3ab, IEEE 802.1p, IEEE 802.3x, IEEE 802.1w, IEEE 802.1x, IEEE 802.1s
Dimensions (H x W x D)	1.7 in x 17.5 in
Operating Temperature	32 °F
Operating Humidity	10%