PM3350-SW datasheet(106/224 Pages) PMC

106 / 224 page

ELAN 8X10

PM3350 ELAN 8 X10

DATA SHEET

PMC-970109

ISSUE 3

8 PORT ETHERNET SWITCH

PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND PMC-SIERRA, INC. CUSTOMERS ONLY

104

Managed System Requirements

This section discusses the memory requirements for supporting the RTOS, the UDP/IP

stack, the SNMP agent, and the MIB implemented by the ELAN 8x10.

This section is TBD.

Switching System Initialization

Prior to beginning Ethernet frame switching operations, it is necessary to initialize the

various data structures (primarily the variables in the Switch Processor operating

environment) and internal device registers to the appropriate values, and also to set up

the free pools required for dynamic memory allocation. This section describes the

initialization process in detail.

This section is TBD.

Switching Between Local Ports

The following describes the sequence of events that take place whenever an Ethernet

frame is switched from one port to another through the local RAM. Note that the

discussion focuses mainly on the actions performed by the Switch Processor firmware

and the transactions performed by the frame switching processes, and only briefly

describes the functions implemented by the hardware.

The switching sequence followed by the ELAN 8x10 upon the reception of a valid frame

that will be transmitted out another of the ports implemented on the same ELAN 8x10

device is depicted in the following trellis diagram:

PM3350-SW Datasheet(PDF) 106 Page - PMC-Sierra, Inc