Administration HiPath 3000/5000 V7 IP systems

3000sb4.fm
HiPath 3000/5000 in the LAN Network For internal use only
Network Analysis
The overhead is calculated as follows:
Protocol Bytes
RTP header 12
UDP header 8
IP header 20
802.1Q VLAN tagging 4
MAC (incl. preamble, FCS) 26
Total 70
Table 4-2 Overhead Calculation
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)
The following values apply to payload connections with RTP (Real-Time Transport Protocol) in
a WAN environment:
Codec Packetizing
Sample
size (ms)
Payload
(bytes)
Packet
length
(bytes)
Payload
packet
(overhead
in %)
WLAN
load
(Kbps)
Packet
length with
header
compression
(bytes)
WLAN
load with
header
compression
(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
P31003-H3570-Y100-4-7618, 2007-10-31
4-4 HiPath 3000/5000 V7, System Description