Comtech EF Data CDM-800 Instrukcja Użytkownika Strona 20

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Ultra Low Overhead Encapsulation
Ultra low overhead Streamline
Encapsulation (SLE)
Patent pending
Reduces encapsulation overhead
Up to 65% compared to HDLC
Up to 95% compared to AAL5 used in
DVB-RCS
Up to 90% compared to proprietary
framing used by other VSATs
Enhanced Generic Stream
Encapsulation
70-80% more efficient compared
to MPE
20-30% more efficient compared
to GSE
0%
10%
20%
30%
40%
50%
60%
70%
64 12 8 192 256 320 384 448 512
EncapsulationOverhead
IPDatagramSiz e(bytes)
DVBRCS‐ BestCase DVBRCS‐ WorstCase ComtechSLE
Voice traffic
Comtech SLE overhead is
90-95% lower compared to
traditional VSAT return
framing / encapsulation
0%
5%
10%
15%
20%
25%
30%
64 128 192 256 320 384 448 512
EncapsulationOverhead
IPDatagramSize(bytes)
MPE
GSE
CEFDEGSE
Voice traffic
Comtech’s Enhanced GSE
70-80% more efficient than MPE
20-30% more efficient than GSE
20Comtech EF Data Proprietary & Confidential
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