Specifications

HiPath 3000/5000 in the LAN Network For internal use only
P31003-H3560-X100-1-7618, 09/05
4-4 HiPath 3000/5000 V6.0, System Description
3000sb4.fm
Network Analysis
The following values apply to payload connections with RTP (Real-Time Transport Protocol) in
a WAN environment:
The WLAN load is calculated for a single route. As WLAN channels usually contain channels
in both directions, this is the same as the bandwidth requirement, for example, for an ISDN
channel.
The overhead is calculated as follows:
Report type Report
interval (sec)
Average Ethernet packet
size (bytes)
EthernetLoad (incl.)
header (Kbps)
Sender report 5 140 0.2
Recipient report 5 140 0.2
Total 0.4
Table 4-3 Payload Connection Check with Parallel RTCP (Real-Time Transport Control
Protocol)
Codec Packetiz-
ing
Sample
size (ms)
Payload
(bytes)
Packet
length
(bytes)
Payload
packet
(overhead
in %)
WLAN
load
(Kbps)
Packet
length
with
header
compres-
sion
(bytes)
WLAN
load with
header
compres-
sion
(Kbps)
G.711 20 20 160 206 29% 82.4
G.711 30 30 240 286 19% 76.3
G.711 40 40 320 366 14% 73.2
G.711 60 60 480 526 10% 70.1
G.723.1 1 30 24 70 192% 18.7 32 8.5
G.723.1 2 60 48 94 96% 12.5 56 7.5
G.729A 1 20 20 66 230% 26.4 28 11.2
G.729A 2 40 40 86 115% 17.2 48 9.6
G.729A 3 60 60 106 77% 14.1 68 9.1
RTCP 5000 230 0.4 0.4
Table 4-4 Codec-Based WLAN Bandwidth Requirements
Protocol Bytes
RTP header 12
UDP header 8
Table 4-5 Overhead Calculation