Prestige 652H/HW Series User’s Guide
29-2
Remote
Node
Configuration
Figure 29-1 Menu 11 Remote Node Setup
29.2.2 Encapsulation and Multiplexing Scenarios
For Internet access you should use the encapsulation and multiplexing methods used by your ISP. Consult
your telephone company for information on encapsulation and multiplexing methods for LAN-to-LAN
applications, for example between a branch office and corporate headquarters. There must be prior agreement
on encapsulation and multiplexing methods because they cannot be automatically determined. What
method(s) you use also depends on how many VCs you have and how many different network protocols you
need. The extra overhead that ENET ENCAP encapsulation entails makes it a poor choice in a LAN-to-LAN
application. Here are some examples of more suitable combinations in such an application.
Scenario 1.
One VC, Multiple Protocols
PPPoA
(RFC-2364) encapsulation with
VC-based
multiplexing is the best combination because no extra
protocol identifying headers are needed. The
PPP
protocol already contains this information.
Scenario 2.
One VC, One Protocol (IP)
Selecting
RFC-1483
encapsulation with
VC-based
multiplexing requires the least amount of overhead (0
octets). However, if there is a potential need for multiple protocol support in the future, it may be safer to
select
PPPoA
encapsulation instead of
RFC-1483
, so you do not need to reconfigure either computer later.
Scenario 3.
Multiple VCs
If you have an equal number (or more) of VCs than the number of protocols, then select
RFC-1483
encapsulation and
VC-based
multiplexing.
Menu 11 - Remote Node Setup
1. My ISP (ISP, SUA)
2. ________
3. ________
4. ________
5. ________
6. ________
7. ________
8. ________
Enter Node # to Edit:
Summary of Contents for Prestige 652H series
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