D
ESCRIPTION
OF
S
OFTWARE
F
EATURES
1-3
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, or TCP/UDP port number) 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
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