Nortel Networks NN43001-563 User Manual

Page 108

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108

ITG engineering guidelines

Table 12 "Real-time capacity of a single card node with all 24 ports enabled"
(page 108)

and

Table 13 "Real-time capacity of an ITG-Pentium 24-port

trunk card in the Leader or DCHIP role" (page 108)

show the real-time

capacity of the ITG-Pentium 24-port trunk card in the role of Leader card
and the role of DCHIP card.

Table 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

Table 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=1

0s

AHT=30s

AHT=6

0s

AHT=1

20s

AHT=1

80s

100

4862

24

1

3

5

9

12

50

5238

24

2

3

5

9

13

0

1

6000

24

2

3

6

10

15

100

7876

0

2

4

7

13

18

50

9334

0

5

5

8

15

22

0

1

10692

0

2

5

9

17

25

1

– A DCHIP card does not perform QoS probing. Use the "0 QoS nodes" row for a DCHIP card.

To achieve successful VoIP, a minimum amount of bandwidth must be
reserved. Bandwidth is not guaranteed unless QoS mechanisms are
implemented.

Nortel Communication Server 1000

IP Trunk Fundamentals

NN43001-563

01.01

Standard

Release 5.0

30 May 2007

Copyright © 2007, Nortel Networks

.

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