3Com 3CBLSG48 User Manual page 201

190 A B D S
PPEnDIX : EVICE
Table 11 Features of the Baseline Switch 2948-SFP Plus
Feature
IgMP Snooping
link Aggregated groups
MAC Address
Capacity Support
MAC Multicast Support
MDI/MDIX Support
Password Management
Port-based
F
PECIFICATIOn AnD EATURES
Description
IgMP Snooping examines IgMP frame contents, when they are forwarded
by the device from work stations to an upstream Multicast router. From
the frame, the device identifies work stations configured for Multicast
sessions, and which Multicast routers are sending Multicast frames.
link Aggregated group (lAg). The system provides up-to eight Aggregated
links to be defined, each with up to eight member ports, to form a single
lAg. lAgs provide:
Fault tolerance protection from physical link disruption
Higher bandwidth connections
Improved bandwidth granularity
High bandwidth server connectivity
lAg is composed of ports with the same speed, set to full-duplex
operation.
The device supports up to 8K MAC addresses. The device reserves
specific MAC addresses for system use.
Multicast service is a limited broadcast service, which allows one-to-many
and many-to-many connections for information distribution. layer 2
Multicast service is where a single frame is addressed to a specific Multicast
address, from where copies of the frame are transmitted to the relevant
ports.
The device automatically detects whether the cable connected to an RJ-45
port is crossed or straight through, when auto-negotiation is enabled.
Standard wiring for end stations is Media-Dependent Interface (MDI) and
the standard wiring for hubs and switches is known as Media-Dependent
Interface with Crossover (MDIX).
Password management provides increased network security and improved
password control. Passwords for HTTP, HTTPS, and SnMP access are assigned
security features. For more information on Password Management,
see "Default Users and Passwords".
Port-based authentication enables authenticating system users on a
Authentication per-port basis via an external server. Only authenticated and
approved system users can transmit and receive data. Ports are authenticated
via the Remote Authentication Dial In User Service (RADIUS) server using the
Extensible Authentication Protocol (EAP).