September 2001
Intermediate to advanced
272 pages
7h 27m
English
book
Design and Implementation of DSL-Based Access Solutions
by Sanjeev CCIE #4006 Mervana, Chris CCIE #5235 Le
Content preview from Design and Implementation of DSL-Based Access Solutions
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Considerations at the Data Link Layer (Layer 2)
The previous section covered how subscriber traffic is put on the wire and how it is modulated into signals. We also talked about the issues related to Layer 1. Moving up one layer in the OSI model, we will now discuss some of the key components of Layer 2, or the data link layer for xDSL deployments. Because this book focuses more on ADSL, the most common and widely deployed data link layer for ADSL deployments today, we will use ATM as the model for our examples.
Even though ATM is the most common and widely deployed data link layer protocol for ADSL, other technologies exist. Other vendors use Frame Relay as the data link layer for ADSL, while some use HDLC as the data link layer protocol for ...
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