Siemens HiPath 3000 Series Service Documentation page 823

Nur für den internen Gebrauch
Feature
CRL
CorNet-TC/TS
CorNet NQ
H.225 RAS
H.235 Annex D
MIKEY
Proprietary encryption
protocol
SRTP
SRTCP
If the individual data volumes are added together, then the per-call data traffic increases in the
LAN as follows:
for a local call: 2 KB
●
(60 CorNet TC + 4 H.225 CS messages over TLS + 2 MIKEY#0 messages)
for an external call: 700 bytes
●
(12 H.225 CS messages incl. CorNet NQ messages over TLS + 2 MIKEY#0 messages)
The increased data traffic volume in payload connections is mainly due to the authentication
code of 10 bytes, which is added to every data packet as a result of SRTP. The additional data
volume due to SRTCP is negligible.
A31003-H3590-S100-7-7620, 06/2012
HiPath 3000/5000 V9, Service documentation
Approximate data
volume
250 bytes to several
MB
+ ~70 bytes/call
+ ~60 bytes/call
+ ~10 bytes/call
+ ~10 bytes/packet
~200 bytes to 2 KB per
message
50 bytes for encryption messages
+ up to 15 bytes/message to pad the message if it is less than 16
bytes in size.
+ 10 bytes/message if the authentication code was configured.
+ 10 bytes/packet
+ 14 bytes/packet
Expanding and Upgrading HiPath 3000
Explanations
The CRL size depends on the theoretically
unlimited number of CRL entries (= revoked
certificates). The entry is 40 bytes in size
(ASN.1-enoded), therefore, for example:
CRL with 250 entries: ~10 KB
●
CRL with 1000 entries: ~40 KB
●
Key for DMC and display updates
Security procedure and key for DMC
Security
Authentication code
In MIKEY options #0 and #1, a MIKEY mes-
sage is ~200 bytes long, in #3, the length of
the message increases by 2 KB on account
of the certificate included.
Authentication code (MKI not used)
Authentication code and SRTCP index
exup.fm
Upgrading HiPath 3000
9-39