Ethernet Switch Stacking Controller Allows Ethernet Switches stac

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Ethernet Switch Stacking Controller Allows Ethernet Switches stac

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LS202 StackLink Mini Data Sheet
Ethernet Switch Stacking Controller
Allows Ethernet Switches stacked together. Entire Stack support ports. Provides Mbits bandwidth segment ring topology. Utilizes cost LVDS PHY's facilitate link between stacked switches. learned address automatically learned hardware switches stack. Maintains packet ordering throughout stack. Connects directly LS201 LS211 Switching Element. cost, scalable solution stackable switched Ethernet. 3.3V CMOS technology with tolerant I/O's. Ball Grid Array (BGA) package.
Description
LS202 StackLinkis highly integrated stacking controller 10/100/1000 Mbit Ethernet switching. integrates memory controller, queue manager, address data path, interface. When combined with I-Cube Switching Element like LS201 Port Switching Element LS211 Port Switching Element, LS202 provides cost stackable switched Ethernet solution. LS202 allows users stack four Ethernet switches ports) together providing 800Mbs bandwidth segment. Voltage Differential Signaling (LVDS) PHY's used facilitate connection between stacked switches. Figure gives overview functional blocks that make LS202.
Synchronous Synchronous Synchronous SRAM SRAM SRAM Address Data Control
RSP-Port
Switch Port Switch Port
Response Port
SW_IN0 SW_IN1
SW_OUT0 SW_OUT1
Switch Port Switch Port
SSRAM Memory Controller Queue Manager
DEMUX
Switch Port
SW_IN7
SW_OUT7
Switch Port
Sequence Number Generator
SAP-to-SAP Supervisor
Time Stamp Generator
Control/Status Registers
Data
Data Miss FIFO Packet FIFO Load FIFO
Data
Data
RST# External Switch Clock Clock
Local Switch Clock
Interface Controller
Snooper
Clock
Figure LS202 Functional Block Diagram
Last Modified: June 1999
LS202 StackLink Mini Data Sheet- Ethernet Switch Stacking Controller
Introduction
LS202 switch stacking controller Ethernet SwitchSetTM. When combined with other members family provides backbone scaleable switching architecture. these features lies I-Cube's Digital Crosspoint Switch (DCS) technology switch fabric. Figure shows LS202, LS1000 Gbit port controller, LS120 quad 10/100 Mbit port controller LS211 49-port switching element combined create stackable workgroup switch. Variations this architecture used backbone Gigabit Ethernet switch applications.
Physical Layer Device
Gigabit Port (optional)
SSRAM
SSRAM
Physical Layer Device
Physical Layer Device
Gigabit Port
GMAC Data
GMAC
GMAC Host
LS1000
LS202
SSRAM
Physical Layer Device
Port Port MDC/MDIO MII[3:0]
LS120
LS120
Interface
LS211
SSRAM
MDC/MDIO
Physical Layer Device
Port Port MDC/MDIO MII[3:0]
ETHERNET
LS120
8051 "Smart" Unmanaged (optional) Managed (optional)
LS125 LS125
Figure Based Workgroup Switch
Page
Last Modified: 6/29/99
I-Cube, Inc.
LS202 StackLink Mini Data Sheet- Ethernet Switch Stacking Controller
Switch management functions handled optional standard Ethernet network interface controller (NIC). CPU, NIC, port interfaces connected management bus. This used transfer management packets between NIC. also uses access control registers located LS120s NIC. "Smart" unmanaged switches handled using cost that connected directly LS125 µAccess Interface. smart unmanaged used configure switch used provide basic user interface (e.g., switches, serial interface, front panel LED's). Figure shows four switches could stacked together.
Ports
Switch
Ports
Switch
Ports
Switch
Ports
Switch
Figure Based Switch Stack
LS202 Functional Blocks
primary functional blocks that make LS202 are: Memory Controller Queue Manager Address Data Path Interface Switch Input Buffer with Data Deserializer Switch Output Buffer with Data Serialzier Supervisor
I-Cube, Inc.
Last Modified: 6/29/99
Page
LS202 StackLink Mini Data Sheet- Ethernet Switch Stacking Controller
I-Cube® registered trademark RapidConnect, RapidConfigure, IQX, SwitchSet, StackLink trademarks I-Cube, Inc. other trademarks registered trademarks property their respective holders. I-Cube, Inc., does assume liability arising applications product described herein; does convey license under patents, copyright rights rights others. information contained this document believed current accurate publication date. I-Cube, Inc., reserves right make changes, time, order improve reliability, function, performance design supply best product possible. I-Cube, Inc., assumes obligation correct errors contained herein advise user this text correction such made. This product protected under U.S. patents: 5202593, 5282271, 5426738, 5428750, 5428800, 5465056, 5530814, 5559971, 5625780, 5710550, 5717871, 5734334, 5754791, 5781717, 5784003, 5790048, 5884101. Additional patents pending. I-Cube, Inc., 1999. rights reserved.
I-Cube®, Inc.
2605 Winchester Blvd. Campbell, 95008,
Phone: (408) 341-1888 Fax: (408) 341-1899 Email: marketing@icube.com Internet: http://www.icube.com
LS202 Mini Data Sheet June, 1999 [Advanced 0.2] Document MKT-LS202-MDS
Page
Last Modified: 6/29/99
I-Cube, Inc.

Ethernet Switch Stacking Controller Allows Ethernet Switches stac

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