Higher Layer Functions; Figure 14: Packet Processing Layers - Juniper G10 CMTS Hardware Manual

Figure 14: Packet Processing Layers

Management
Interface
CMTS
Management
Packet
Filtering
Classifier
Management/
Scheduler
Management/
Control
DOCSIS Data Upconverter
to/from HFC

Higher Layer Functions

The DOCSIS Module provides the following higher layer functions:
Higher Layers
Forwarding
MAC Layer
Packet Header
Suppression
PHY Layer
PMD Sublayer
Modem
! Packet filtering and forwarding—Filters Layer 2, Layer 3, Layer 4, and above based on
DOCSIS 1.1 filter functionality.
! CMTS management—SNMP, MIBs, and CLI (command-line interface).
! Network-side interface (NSI)—IP data and VoIP interfaces.
Higher Layer Network Layer
Functions Protocols
De-encapsulator
Defragment
Frame
Deconcatenate
Parser
Decrypt
Frame
Encryption
Generator
MPEG Groomer
DTC Sublayer
DOCSIS Module
MPEG
VoIP
Data/IP
Hardware Component Overview
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