Juniper Networks G10 CMTS manual Data Packet Processing

DOCSIS Module

•Figure 13: DOCSIS Module Block Diagram

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Packet, Scheduling, and Management

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Processing Devices

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Upconverter

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SDRAM

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I2C

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Dual PCI Bridge

Flash

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Memory Controller

Memory

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Modem

Timer &

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Broadband Cable Processor

NVRAM

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ASIC

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Security

Bridge

Mgmt

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Port

Proc.

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100Base-T

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cCPI Midplane

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Traffic

Traffic

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Port

Port

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100Base-T

100Base-T

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•Data Packet Processing

•	This section describes the major processing functions performed at the PHY, MAC, and
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	higher protocol layers for DOCSIS 1.1 and EuroDOCSIS 1.1 compliance. Figure 14 on page 33
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	illustrates these functions. See the DOCSIS specifications for more details.
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32 JUNOSg 3.0 G10 CMTS Hardware Guide