Nortel Networks NN43001-563 Media Card 32-port trunk card Leader 0 and DCHIP card real-time capacity

108 ITG engineering guidelines
Tabl e 12
Real-time capacity of a single card node with all 24 ports enabled
Calls/hr CCS AHT Maximum number of nodes monitoring QoS Comment
490 882 180s 96 Normal traffic
1500 900 60 46
3000 900 30 30
6000 600 10 0 Maximum capacity of
card
Tabl e 13
Real-time capacity of an ITG-Pentium 24-port trunk card in the Leader or DCHIP role
Number
of QoS
nodes
in
network Calls/hr supported
Voice
ports
enabled
on
Leader
card
At 1% blocking with x seconds of Average Hold Time
(AHT), the minimum number of ITG-Pentium 24-port
trunk card Follower cards required at:
AHT=10s AHT=30s AHT=60s AHT=12
0s AHT=18 0s
100 4862 24 1 3 5912
50 5238 24 2 3 5913
016000 24 2 3 6 10 15
100 7876 0 2 4 713 18
50 9334 0 5581522
0110692 0 2 591725
1– A DCHIP card does not perform QoS probing. Use the "0 QoS nodes" row for a DCHIP card.
Toachieve successful VoIP, a minimum amount of bandwidth must be
reserved. Bandwidth is not guaranteed unless QoS mechanisms are
implemented.
Media Card 32-port trunk card Leader 0 and DCHIP card real-time
capacity
The Media Card 32-port trunk card is based on the Intel StrongARM CPU.
The real-time capacity analysis of the Media Card 32-port Leader 0 card is
as follows. The following assumptions are made:
1. The minimum number of Followercards required is a function of the call
rate (which is limited by the Leader and DCHIP card) and the Average
Hold Time (AHT) (which is a function of the number of channels per
card). The number of Follower cards is calculated by the number of
voice channels required (using Poisson 1 percent blocking Grade of
Nortel Communication Server 1000
IP TrunkFundamentals
NN43001-563 02.01 Standard
Release 5.5 21 December 2007
Copyright© 2007, Nor tel Networks
.