LevelOne ProCon GSW-2692 User Manual download pdf (Page 20)

Introduction

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Description of Software Features

The switch provides a wide range of advanced performance enhancing features.

Flow control eliminates the loss of packets due to bottlenecks caused by port

saturation. Broadcast storm suppression prevents broadcast traffic storms from

engulfing the network. Port-based and private VLANs, plus support for automatic

GVRP VLAN registration provide traffic security and efficient use of network

bandwidth. CoS priority queueing ensures the minimum delay for moving real-time

multimedia data across the network. While multicast filtering provides support for

real-time network applications. Some of the management features are briefly

described below.

Configuration Backup and Restore – You can save the current configuration

settings to a file on a TFTP server, and later download this file to restore the switch

configuration settings.

Authentication – This switch authenticates management access via the console

port, Telnet or web browser. User names and passwords can be configured locally or

can be verified via a remote authentication server (i.e., RADIUS or TACACS+).

Port-based authentication is also supported via the IEEE 802.1X protocol. This

protocol uses the Extensible Authentication Protocol over LANs (EAPOL) to request

user credentials from the 802.1X client, and then verifies the client’s right to access

the network via an authentication server.

Other authentication options include HTTPS for secure management access via the

web, SSH for secure management access over a Telnet-equivalent connection, IP

address filtering for SNMP/web/Telnet management access, and MAC address

filtering for port access.

Access Control Lists – ACLs provide packet filtering for IP frames (based on

address, protocol, TCP/UDP port number or TCP control code) or any frames

(based on MAC address or Ethernet type). ACLs can be used to improve

performance by blocking unnecessary network traffic or to implement security

controls by restricting access to specific network resources or protocols.

Port Configuration – You can manually configure the speed, duplex mode, and

flow control used on specific ports, or use auto-negotiation to detect the connection

settings used by the attached device. Use the full-duplex mode on ports whenever

possible to double the throughput of switch connections. Flow control should also be

enabled to control network traffic during periods of congestion and prevent the loss

of packets when port buffer thresholds are exceeded. The switch supports flow

control based on the IEEE 802.3x standard.

Rate Limiting – This feature controls the maximum rate for traffic transmitted or

received on an interface. Rate limiting is configured on interfaces at the edge of a

network to limit traffic into or out of the network. Traffic that falls within the rate limit is

transmitted, while packets that exceed the acceptable amount of traffic are dropped.

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LevelOne ProCon GSW-2692 User Manual Page 20