Technical data

TOS for H.323 B-7
Appendix B: VoIP Service
SBX IP Programming & Operations Guide
Executing "ping2" for different TOS with no load.
The modified NIKHEF ping code is run from nereus.slac.stanford.edutonocdev1-qos.es.net
with TOS: 0, 32, 64, 96, 128, 160, 192, 224 & No TOS specification. The code is run for 10,000
packets of each TOS. The TOS numbers represent the precedence bits as follows.
Precedence 0 (TOS 0) is NORMAL PRECEDENCE (low precedence), while precedence 7
(TOS 224) is referred to as network control (High precedence).
Since there is no load on the line, the TOS is expected to have no effect on the ping statistics.
Therefore, the obtained results are similar to the predicted results.
ADMIN PROGRAMMING
Set Precedence Value
PRECEDENCE BITS (0,1,2) TOS
00000
1 001 32
2 010 64
301196
4 100 128
5 101 160
6 110 192
7 111 224
TOS Precedence -- sets TOS Precedence. PGM 340 + FLEX 21 + 0
(Value) + [HOLD/SAVE]
VALUES --
0-7
Release 3.5
June 2010