4
Overview
The Radiance 10/100Mbps interface line card provides seamless migration
between Ethernet and Fast Ethernet networks, in addition to built-in media
conversion allowing high-speed integration of fiber optic and twisted-pair
segments. A complete set of LEDs allows for quick status verification, and a
bank of DIP switches provides added versatility on each port. To optimize your
Ethernet network, each port operates independently in either half or full duplex.
The management functionality allows communication between the chassis and a
management station. This ability provides remote software control over the
Radiance line card configuration and notification of a failure to the management
station.
The Radiance 10/100Mbps interface line cards offer the following key features:
•
Auto-negotiation switches on all twisted-pair interfaces.
•
Link Loss Return (LLR) functionality to aid in troubleshooting a
remote network connection on all fiber optic ports.
•
Link Loss Carry Forward (LLCF) functionality to aid in trouble-
shooting a remote network connection. (R642-xx and R612-51
only)
•
An MDI-II to MDI-X switch that eliminates the need for crossover
cables on twisted-pair ports.
•
Store-and-forward switching to improve overall network perfor-
mance by buffering packets during times of heavy congestion and
to prevent the forwarding of corrupted packets.
•
A high-performance switching engine that performs forwarding and
filtering at full wire speed (148,800 packets per second).
•
The ability to learn up to 8,000 MAC addresses.
•
320 buffers per port with 1,536 bytes each.
•
Low last-bit-in to first-bit-out delay.
