paxcomm co. ltd. 라우터 / 스위치 chipset ㈜ 팍스콤. paxcomm co. ltd. 백 영식 2 목차...

PaxComm Co. Ltd.

라우터 / 스위치 Chipset

㈜ 팍스콤

백 영식 2

PaxComm Co. Ltd.

목차

1. Layer 2, Layer 3 switching

2. Switching Chip architectures

3. Galileo-I architecture

4. Galileo-II architecture

5. MMCnet architecture

백 영식 3

PaxComm Co. Ltd.Layer 2, Layer 3 Switching (1)

User 의 요구 Dedicated high speed port 를 필요 다양한 application 의 사용 (Video, Audio 등의 multimedia application)

Network 의 요구 사항 고속 WAN link speed Adapting to evolving traffic patterns Support multiple service levels Broadcast 의 처리 Security and firewall

백 영식 4


Layer 2 Switching Efficient and high-speed multi-port learning bridge Easy implementation and installation Large Flat Network Broadcast, Security problem Can be solved by VLAN Intercommunication problem between VLANs

Forwarding Model cut-through store-and-forward adaptive cut-through

백 영식 5


Layer 3 Switching High speed(Wire speed) Quality of Service Multicast

Layer 3 switch 구현 Traditional software-based routing -> hardware Route once, switch many Cut-through

백 영식 6

PaxComm Co. Ltd.Switching Chip Architecture (1)

I-Cube : Pure Crossbar (16 Port and 16 Port plus 1 Gigabit I-Cube Design, simplified)

FourEthernet

Ports

CrossBar

FourEthernet

Ports

FourEthernet

Ports

FourEthernet

Ports

FourEthernet

Ports

CrossBar

FourEthernet

Ports

FourEthernet

Ports

FourEthernet

Ports

SingleGigabit

Port

백 영식 7


PMC-Sierra and Texas Instrument : Ring

Device A eight FastEthernet

Ports

Device D eight FastEthernet

Ports

Device C eight FastEthernet

Ports

Device B eight FastEthernet

Ports

백 영식 8

PaxComm Co. Ltd.

Switching Bus

Ports

Switch EngineMemory

Ports

Switch EngineMemory

Ports

Switch EngineMemory

Ports

Switch EngineMemory

Switching Chip Architecture (3)

Galileo - I : Distributed Switching Architecture

백 영식 9


Galileo-II : Hybrid Cell Crossbar

Cell Crossbar

8 Fast EthernetPorts




Ethernet Packet Traffic

Cell Traffic

백 영식 10

PaxComm Co. Ltd.

Switch Engine

Shared Memory Port

Ports PortsPortsPorts

Switching Chip Architecture (5)

MMC networks : Share Memory Architecture

백 영식 11

PaxComm Co. Ltd.Galileo-I Architecture (1)

Direct support for packet buffering High-performance Distributed switching engine VLAN support Quality-of-Service Queuing Address Resolution

Distributed Address Table management

5 종 17 개의 GalNet Protocol message 를 이용한 Packet forwarding NEW_ADDRESS BUFFER_REQUEST START_OF_PACKET PACKET_TRANSFER END_OF_PACKET

백 영식 12

PaxComm Co. Ltd.Galileo-I Architecture (2)

PROCESSORMEMORY

PCIBRIDGE

Galileo 10/00 device

DRAMGalileo

10/00 deviceDRAM

OTHER WAN INTERFACE

PCI BUS

Implementation example

백 영식 13

PaxComm Co. Ltd.Galileo-II Architecture (1)

Switch ControllerGT-48310

8 ports Fast Ethernet


8 ports Fast Ethernet


1 ports GigabitEthernet

Switch Controller(Future)

WAN

4 Port G.Link CrossbarGT-48300(12Gbps)

PCI used for CPU interface and for connection to other switching devices

(66M PCI)

G.Link Interconnects (2.4 Gbps each)

Galileo-II Switch Using G.Link Crossbar

백 영식 14


Switch Controller Switch Controller Switch Controller

4 Port G.Link Crossbar

Switch Controller Switch Controller Switch Controller


Peer-to-peer Galileo-II Configuration

백 영식 15


Switch Controller

Switch Controller

Switch Controller


Switch Controller

Switch Controller

Switch Controller


Switch Controller

Switch Controller

Switch Controller


Switch Controller

Switch Controller

Switch Controller



Hierarchical G.Link Configuration

백 영식 16

PaxComm Co. Ltd.

Current Approaches to Networking Equipment Design

FlexibilityTime to Market

Performance

Cost

Low

Low

High

Slow

High

Low

HighFast

General PurposeProcessor

Network Processor

Custom ASICs

MMCnet Architecture (1)

백 영식 17

PaxComm Co. Ltd.

Basic Switch Architecture

MMCnet Architecture (2)

nP5400BitStreamProcessor

BitStreamProcessor

Link Memory

DataMemory

Packets PacketsHeaders

Cells

Headers

Cells

ViX Interconnect

백 영식 18

PaxComm Co. Ltd.MMCnet Architecture (3)

Switch Component Requirements

AF5400 switch Configuration(5.5Gbps)

Switch Capacity nP5400 Modules EPIFs XPIFs5.5 Gbps 1 4 211.0 Gbps 2 8 422.0 Gbps 4 16 8

nP5400 packet Switching Module

CPUData

MemoryLink

Memory

ViX Interconnect

EPIF EPIF EPIF EPIF

Fast Ethernet Fast Ethernet Fast Ethernet Fast Ethernet

백 영식 19



CPUData

MemoryLink

Memory

ViX Interconnect

EPIF EPIF EPIF EPIF


EPIF EPIF EPIF EPIF



CPUData

MemoryLink

Memory

11.0-Gbps switch Configuration

백 영식 20



CPUData

MemoryLink

Memory

EPIF EPIF EPIF EPIF

Fast Ethernet

Fast Ethernet

Fast Ethernet

Fast Ethernet

22.0-Gbps switch Configuration


CPU

EPIF EPIF EPIF EPIF

Fast Ethernet

Fast Ethernet

Fast Ethernet

Fast Ethernet


CPU

EPIF EPIF EPIF EPIF

Fast Ethernet

Fast Ethernet

Fast Ethernet

Fast Ethernet


CPU

EPIF EPIF EPIF EPIF

Fast Ethernet

Fast Ethernet

Fast Ethernet

Fast Ethernet

ViX Interconnect

DataMemory

Link Memory

DataMemory

Link Memory

DataMemory

Link Memory

백 영식 21


5400 Architecture

Ingress Processing

Switching

Queuing

Scheduling

Egress Processing

Bit Stream Processor

5400 Switch Fabric

Bit Stream Processor

백 영식 22


Search Machine

MicroController

Statistics

Routing Table

Memory

Slicer

MAC

CH

AN

NE

L

CH

AN

NE

L

CH

AN

NE

L

CH

AN

NE

L

0 1 2 3

Up to 64K entriesper channel

Wire speed searchusing any key

Packet to CellConversion ViX Switch Interface

Wire speed parsingand manipulation

of ingress andegress packets

RMON Group 1, 2, 3, and 4 10/100 Ethernet MACs

MII Interface

EPIF Architecture

백 영식 23


System Architecture

Bit Stream Processor Switching Fabric

System CPU

Driver

Microcode(L2 learning and Aging, IP, IPX Routing

RTOS

nP Independent API

Routing software

paxcomm co. ltd. 라우터 / 스위치 chipset ㈜ 팍스콤. paxcomm co. ltd. 백 영식 2 목차...

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