Technical Description of TANDBERG 8000 with software version E3/B8
D12008 Rev. 11
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4.1.3
Ethernet / LAN Interface (H.323)
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The RJ-45 jack for the Ethernet interface (manual or automatic detection of 10/100Mb) supports
bit rates from 64 kbps up to 3 Mbps. The ITU-T standard H.323 v4 protocol is implemented in
the TANDBERG 8000.
The following features are specifically relevant for this network interface
16
:
4.1.3.1
Default IP Password
New systems or systems that have loaded factory defaults will have a default password
“TANDBERG” all caps and the
strict password
enabled.
Strict password
: IP password that is at least 8 characters long and contains both letter and
Numbers (alphanumeric). When off all IP password are accepted including blank ones.
Command is: “strictpassword <on/off>” Default is on. The strict password needs to be disabled,
via Data Port or Telnet to set a blank or simple password.
4.1.3.2
Quality of Service features (QoS)
4.1.3.2.1
IP precedence
IP precedence is a classification of packets from 0 (low priority) to 7 (high priority). The
values 6 and 7 are typically reserved for congestion control. IP precedence helps a router
select what kind of traffic to prioritise. By means of queue mechanisms, it can select
which packets to send first and which to throw away. Some information/traffic is time
critical while other is not, and classification is used to differentiate this traffic.
One may set separate IP precedence for Signalling, Audio, Video and Data (values 1 – 7)
as well as turn IP precedence off.
The
auto
setting uses the following values for IP precedence:
Signalling=6
Audio/Video=4
Data=3 (e.g. FECC commands)
This means that in
auto,
IP precedence has the value 6 (i.e. signalling value) while both
audio and video value is 4; data value is 3. Setting the IP precedence value in system’s
menu is actually setting the signalling value. The audio/video and data values are
changed accordingly in respect to the signalling value (i.e. audio/video value = - 2; data
value = - 3).
4.1.3.2.2
Diffserv
Diffserv is an extension of IP precedence, where one can set values from 0 to 63
(63=Highest priority).
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For further info on H.323, please refer to document ‘TANDBERG and IP’ (D12434)
16 NOTE: E3/B8 software does not support T.120 when running H.323 calls
