Nortel Networks NN43001-563 Calculate Ethernet and WAN bandwidth usage

Factors that effectthe real-time capacity 111
Tabl e 15
Real-time capacity of a Media Card 32-port trunk card in the Leader role
Number
of QoS
nodes
in
network
Calls/hr
supporte
d
Voice
ports
enabled
on
Leader
card
At 1% blocking with x seconds of Average Hold Time
(AHT), the minimum number of Media Card 32-port
trunk card Follower cards required at:
AHT=10s AHT=30s AHT=60s AHT=120
sAHT=180 s
100 2615 32 1 2 2 4 5
50 3574 32 1 2 3 57
0 6000 32 1 3 4 8 11
100 3045 0 1 2 3 4 6
50 6376 0 1 3 5812
0 10281 0 2 4 713 18
Tabl e 16
Real-time capacity of a Media Card 32-port trunk card in the DCHIP role
Calls/hr
supported
Voice
ports
enabled
on
DCHIP
card
At 1% blocking with x seconds of Average Hold Time (AHT),
the minimum number of Media Card 32-port trunk card
Follower cards required at:
AHT=10s AHT=30s AHT=60s AHT=120s AHT=180s
6000 0 1 3 4 8 11
5800 32 1 3 4 8 11
In order to achievesuccessful VoIP, a minimumamount of bandwidth must
be reserved. Bandwidth is not guaranteed unless QoS mechanisms are
implemented.
Calculate Ethernet and WAN bandwidth usage
Table17 "Silence Suppression disabled TLAN Ethernet and WAN IP
bandwidth usage per IP Trunk3.01 (and later) " (page113) liststhe Ether net
and WAN bandwidth use of IP Trunk3.01 (and later) ports with different
codecs with Silence Suppression Disabled. One por t is a channel fully
loaded to 36 CCS, where one CCS (Centi-Call-Second) is a channel/circuit
being occupied 100 seconds. 36 CCS is a circuit occupied for a full hour.
Nortel Communication Server 1000
IP TrunkFundamentals
NN43001-563 02.01 Standard
Release 5.5 21December 2007
Copyright© 2007, Nor tel Networks
.