IP178G datasheet(2/76 Pages) ETC2

2 / 76 page

IP178G

Data Sheet

2 / 76

December 19, 2012

IP178G-DS-R01.3

Table of Contents

Features............................................................................................................................................................................. 1

General Description .......................................................................................................................................................... 1

Table of Contents .............................................................................................................................................................. 2

List of Tables...................................................................................................................................................................... 5

List of Figures .................................................................................................................................................................... 6

Revision History ................................................................................................................................................................ 7

Features comparison between IP178D and IP178G..................................................................................................... 8

Pin diagram ............................................................................................................................................................... 9

1.1

IP178G Pin diagram (QFN68).................................................................................................9

IP178G application diagram .................................................................................................................................. 10

2.1

An 8 TP port switch application.............................................................................................10

2.2

An 8-port switch mixed with two fiber ports ..........................................................................10

2.3

TCP/UDP QoS Switch for time-sensitive application from EEPROM setting .......................11

2.4

Switch with VIP ports for specific users from Pin setting ......................................................11

2.5

A 8-port Switch with Port mirror capability setting from EEPROM........................................12

Pin description......................................................................................................................................................... 13

3.1

Analog pins ...........................................................................................................................13

3.2

MDI (Media Dependent Interface).........................................................................................13

3.3

System clock & reset pins.....................................................................................................14

3.4

Boundry scan & test mode....................................................................................................14

3.5

EEPROM interface /SMI (Serial Management interface) .....................................................15

3.6

Frame priority setting pins.....................................................................................................16

3.7

Miscellaneous setting pins ....................................................................................................17

3.8

LED interface ........................................................................................................................18

3.9

Power & ground pads ...........................................................................................................18

Functional Description............................................................................................................................................ 19

4.1

Switch Engine and Queue Management ..............................................................................19

4.1.1

Switch Engine ..........................................................................................................19

4.1.2

Packet Forwarding ...................................................................................................19

4.1.3

Flow control..............................................................................................................19

4.1.4

Backpressure ...........................................................................................................19

4.1.5

Broadcast storm protection ......................................................................................19

4.2

Rserved Group MAC Address...............................................................................................20

4.3

Green Power .........................................................................................................................21

4.3.1

Auto Power Saving Mode ........................................................................................21

4.3.2

IEEE802.3az EEE (Energy Efficient Ethernet) ........................................................21

4.3.3

WOL+ (Wake On LAN Plus) ....................................................................................21

4.3.4

Force Power Off .......................................................................................................22

4.4

Auto Factory Test (AFT) Mode..............................................................................................23

4.5

Reset.....................................................................................................................................23

4.6

Serial management interface ................................................................................................24

4.7

CoS .......................................................................................................................................25

4.7.1

Port base priority......................................................................................................25

4.7.2

VIP ports ..................................................................................................................25

4.7.3

Frame base priority ..................................................................................................26

4.7.3.1

VLAN tag and TCP/IP TOS ............................................................................26

4.7.3.2

IPv4/IPv6 DiffServ ..........................................................................................27

4.7.3.3

TCP/UDP logical port priority .........................................................................28

4.8

Port Mirroring ........................................................................................................................28

4.9

Link Aggergation ...................................................................................................................29

4.10

Buffer Aging...........................................................................................................................31

4.11

LED display (normal operation) ............................................................................................31

4.12

Serial LED Mode ...................................................................................................................31

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