Siemens HiPath 3000 Series Service Documentation page 822

exup.fm
Expanding and Upgrading HiPath 3000
Upgrading HiPath 3000
Higher demand for resources by SPE
The following table provides an overview of the higher demand for resources caused by the
SPE (Signaling & Payload Encryption) feature. The values are automatically applied by the sys-
tem. If the SPE feature is active, a reduced number of channels is reported to the system.
Feature
Standard
QDC
SRTP
DMC
QDC+ SRTP
QDC+DMC
SRTP+DMC
QDC+SRTP+DMC
Higher data volume as a result of SPE
This table can be used to calculate the additional system load resulting from the Signaling &
Payload Encryption (SPE) feature:
Feature
TLS session:
Server authentica-
●
tion
Both-way authenti-
●
cation
Fixed data volume for
TLS encryption
9-38
Max. number of voice channels (per DSP)
HG 1500
STMI2
16
16
12
12
12
12
10
10
Approximate data
volume
1.5 KB
2.5 KB
+ 20 to 30 bytes per
message
Nur für den internen Gebrauch
HG 1500
HXGS3
HXGR3
8
8
6
6
6
6
5
5
Explanations
These are 1-KB certificates that do not sup-
port hierarchical certification. Precisely one
certificate or precisely two certificates are
therefore transferred via LAN.
AES_128_CBC_SHA1 is assumed.
A31003-H3590-S100-7-7620, 06/2012
HiPath 3000/5000 V9, Service documentation
Loss
0%
6%
20%
25%
24%
28%
37%
39%