C
HAPTER
1
| Introduction
Description of Software Features
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DESCRIPTION OF SOFTWARE FEATURES
This switch provides a wide range of advanced performance enhancing
features. Flow control eliminates the loss of packets due to bottlenecks
caused by port saturation. Storm suppression prevents broadcast,
multicast, and unknown unicast traffic storms from engulfing the network.
Untagged (port-based) and tagged VLANs. 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 the
management station (using the web interface) or a TFTP server (using the
console interface), and later download this file to restore the switch
configuration settings.
AUTHENTICATION This switch authenticates management access via the console port, Telnet,
or a 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 Extensible Authentication Protocol over
LANs (EAPOL) to request user credentials from the 802.1X client, and then
uses the EAP between the switch and the authentication server to verify
the client’s right to access the network via an authentication server (i.e.,
RADIUS or TACACS+ server).
Other authentication options include HTTPS for secure management access
via the web, SSH for secure management access over a Telnet-equivalent
connection, SNMP Version 3, IP address filtering for web/SNMP/Telnet/SSH
management access, and MAC address filtering for port access.
Spanning Tree Algorithm Supports Rapid Spanning Tree Protocol (RSTP), which includes
STP backward compatible mode
Virtual LANs Up to 256 using IEEE 802.1Q, port-based, private VLANs, and
voice VLANs
Traffic Prioritization Queue mode and CoS configured by Ethernet type, VLAN ID, TCP/
UDP port, DSCP, ToS bit, VLAN tag priority, or port
Qualify of Service Supports Differentiated Services (DiffServ), and DSCP remarking
Link Layer Discovery
Protocol
Used to discover basic information about neighboring devices
Multicast Filtering Supports IGMP snooping and query, MLD snooping, and Multicast
VLAN Registration
Table 1: Key Features (Continued)
Feature Description
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