Справочник Пользователя для 3com SuperStack 3 Switch 3848 (48p 10/100/1000 4 Free Dual Personality SFP 3CR17402-91-ME

Switch Management

RADIUS management of switch passwords
Trusted IP Management Addresses
Telnet

• SSH v1, v2 (56bit DES)

SSL (HTTPS)

• 40 Bit 
• 56 Bit DES

Support for 3Com Advanced Redundant Power Supply; provides backup 

power to the switch

Dual software images
Backup and restore of switch settings

Remote Management

SNMP v1, v2

Software

Dual software images
Backup and restore
TFTP configuration: upload/download
TFTP agent: upload

Configuration

Command line
Serial (RJ-45 supplied)
Telnet
Web-based
SNMP

Time

SNTP

Mirror port / RAP (Roving Analysis Port) One-to-one
RMON (Remote Monitoring) 

Four groups: statistics, history, alarm, and events

IP address allocation

DHCP
Manual
User-selectable management VLAN

Switch access levels

5 user accounts

Remote GUI management

3Com Network Supervisor (copy provided with product)

• Topology discovery
• Change management reporting
• Capacity planning
• Event logging
• Fault identification and troubleshooting
• Utilization monitoring

3COM

®

SUPERSTACK

® 

3 SWITCH 3848 DATA SHEET

Why Gigabit to the Desk?

It is time to consider "Gigabit to the desk" as an alternative to 10/100 switching:

• Give users a 10x improvement in performance.  Reduce network latency.  Prepare the network for supporting high

quality video and voice communication.

• Pricing for Gigabit is closer and closer to that of 10/100 switching, making it wise to make the move now to the

higher speed.

• Gigabit speeds are increasingly being supported by new servers and workstations.  Prepare the network to deliver

optimum speed.

• Migration is easy, with tri-speed operation, with 10-, 100-, and 1000Mbps operation that automatically adjusts to the

maximum available speed.  No worries about backward compatibility.