Cisco Catalyst 4948 User Manual

Contents
Introduction xviii
Chapter 1 CLI Usage 1
1-1: Cisco Internetwork Operating System (IOS) Software 1
Using Cisco IOS Software 2
1-2: ROM Monitor 9
Using the ROM Monitor Command Set 9
Chapter 2 Switch Functionality 13
2-1: Catalyst Switch Families 13
Catalyst 2000 Series 13
Catalyst 3000 Series 14
Catalyst 4500 Series 15
Catalyst 6500 16
2-2: Switched Campus Network Designs 17
Catalyst Switch Families 23
Cisco Validated Designs: Campus 23
Chapter 3 Supervisor Engine Configuration 25
3-1: Prompts and Banners 25
Configuration of Prompt 26
Configuration of Banner 26
Feature Example 26
3-2: IP Addressing and Services 27
Configuring an IP Management Address 27
Configuring a Default Gateway 28
Setting Up DNS Services or Host Tables 28
Configuring HTTP Services 29
Feature Example 29
3-3: Passwords and Password Recovery 30
Configuration of Passwords 30
Feature Example 30
Password Recovery: Procedure 1 31
Feature Example 32
Password Recovery on IOS Devices: Procedure 2 33
Feature Example 33
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Cisco Catalyst 4948 Specifications

General

Switching Capacity	136 Gbps
Forwarding Rate	102 Mpps
Rack Units	1U
MAC Address Table Size	32, 000 entries
Authentication Method	RADIUS, TACACS+
RAM	256 MB
Flash Memory	64 MB
Power Device	Internal power supply
Voltage Required	100-240 VAC
Weight	16.5 lbs
Operating Humidity	10% to 85% non-condensing
Ports	48 x 10/100/1000
Power Supply	Internal
Layer Support	Layer 3
Jumbo Frame Support	Yes (up to 9216 bytes)
Routing Protocol	RIP, OSPF, EIGRP, BGP
Remote Management Protocol	SNMP, Telnet, SSH
Features	VLAN support, QoS
Compliant Standards	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, IEEE 802.1Q, IEEE 802.1p
Operating Temperature	32 °F to 104 °F (0 °C to 40 °C)