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AL3000 Datasheet, PDF (1/2 Pages) List of Unclassifed Manufacturers – IP Frame Routing Processor | |||
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AL3000
Advance Information
IP Frame Routing Processor
⢠Provides routing functions to Allayerâs RoX-II ⢠Re-assigns VLAN tag and priority for each
bus Ethernet Switching devices
routed frame
⢠Supports up to 32 Fast Ethernet or dual Gigabit ⢠Programmable replacement of MAC and/or IP
ports on the RoX-II bus
fields with associated Layer 3 and Layer 4
⢠High performance Network (Layer 3) and
check-sum recalculation
Transport (Layer 4) address look-up engine ⢠Supports 802.3ad port aggregation
⢠Layer 2-, 3-, or 4-flow packet classification ⢠Supports virtually unlimited physical inter-
⢠Programmable key search based on MAC and IP
source and destination address, TCP socket,
faces and as many logical interfaces as soft-
ware is capable
UDP socket or IP protocol number
⢠Congestion control for each physical interface
⢠Supports up to 131,072 individual host route
and the overall routing engine
entries
⢠Packet bandwidth control for each Layer 3 or
⢠Supports 802.1q priority schemes and provides Layer 4 flow
four Quality of Service (QoS) queues
⢠Layer 3 buffer pool of up to 1024 frames
⢠Provides Network Address Translation (NAT) ⢠Provides Ethernet, Bridge, and RMON MIB
per route database entry
support for RoX II bus devices
⢠Provides support for IP Proxy Services with re- ⢠Six high-speed DMA engines
mappng of Layer 4 Socket replacements
⢠0.25 micron, 2.5V / 3.3V CMOS technology
⢠Programmable entry aging via internal timers ⢠456-pin BGA package
and via external real-time clock
32-bit uP 48
Bus
Processor
Interface/
DMA Control
Management
DMA Host
Engine
Interface to Switch Device
20
4
I/O Packet
Engines
RoX II
Interface
3.3 Volts
GND
Command
Interpreter
CLK
Reset
Search
Engine
Scan/Test
5
SGRAM Interface
Search Memory 48
SGRAM 4-8 MB
Figure 1 System Block Diagram
Parser / Result
Engine
Memory &
Queue
Server
SGRAM Interface
Packet Memory 80
SGRAM 2 MB
RoX II
Ring Control
Output
Queue/
RAM Control
Reference Only / Allayer Confidential
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