Specifications

HiPath 3000/5000 in the LAN Network For internal use only
P31003-H3560-X100-1-7618, 09/05
4-6 HiPath 3000/5000 V6.0, System Description
3000sb4.fm
Network Analysis
The rule of thumb for calculating the bandwidth requirement for CAR-Alive between n nodes is:
Bandwidth LAN = n × (n-1) × bytes AliveMsg × 8 ÷ 1000 ÷ T timeout between ping
and the rule of thumb for calculating the bandwidth requirement for CAR-Alive between n nodes
at the HG 1500 interface is:
Bandwidth LAN = (n-1) × (n-1) × bytes AliveMsg × 8 ÷ 1000 ÷ T timeout between ping
The value for bytesAliveMsg:
in the LAN is 212 with ping or 127 with TCP
in the WAN is 188 with ping or 102 with TCP
The default timeout between two pings is 12 seconds.
The following table contains information on additional bandwidth requirements for signals:
Bandwidth requirement in LAN environments with encryption:
Encryption requires higher bandwidth. In the following tables, the required bandwidth is listed
based on the possible voice codecs and encryption algorithms for Ethernet packets. Encryption
is carried out via an IPsec protocol stack. Out of the different operating modes possible in IP-
sec, only one is described here: the ESP tunnel mode with authentication.
2 0.14 0.22
3 0.41 0.66
4 0.82 1.31
5 1.37 2.19
6 2.06 3.28
Device/application BHCA Load (Kbps)
DSS server, outgoing and incoming calls 1400 2
Attendant P (busy) 1400 3
Call charge information 1400 1
ACD information 1400 10
Fax over VCAPI, 14400 bauds 2
CDB synchronization system with DBFS (TFTP, burst) 162
Table 4-8 Bandwidth Requirements for Signals
Node
Number
TCP load
(Kbps)
Ping load
(Kbps)
Table 4-7 WAN Bandwidth Requirement for CAR-Alive/Node Survey