Cisco Catalyst 4948 User Manual

3-4: Managing Modules 34
Viewing Modules 34
Accessing Modules 34
Resetting Modules 34
Powering Modules Up and Down 35
3-5: File Management and Boot Parameters 35
Navigating File Systems 36
Deleting Files from Flash 38
Copying System Files 39
File System Boot Parameters 40
Alias Commands 41
3-6: Redundant Supervisors 42
Forcing a Change to the Standby Supervisor 43
Synchronizing IOS Images 44
Synchronizing Boot Parameters 45
3-7: Cisco Discovery Protocol 46
Configuration of CDP 46
Feature Example 47
3-8: Time and Calendar 47
System Time Configuration 48
Setting the System Time Manually 48
Setting the System Time Through NTP 49
Example 50
Chapter 4 Layer 2 Interface Configuration 53
4-1: Switching Table 53
Configuration 53
Displaying Information About the Switching Table 54
Switching Table Example 54
4-2: Port Selection 56
Configuration 56
Port Selection Example 57
4-3: Ethernet 57
Configuration 57
Ethernet Example 60
Displaying Information About Layer 2 Interfaces 61
x Cisco LAN Switching Configuration Handbook

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)