Bandwidth Requirement For Branch Office Lan/Wan - Avaya 1000 Installation And Commissioning Manual

Table 56: MG 1000B Core and MG 1000B expander card type, number and devices
Card type
MC
XDLC
PRI
CPPM CS+SS
The MG 1000B Core has four slots available. An MG 1000B Expander is required for additional
cards. Digital Trunk cards, such as PRI/DTI/TMDI, are only supported in slots 1 to 4 of the MG
1000B Core chassis.
The proposed system would require an MG 1000B core and MG 1000B Expander.

Bandwidth requirement for Branch Office LAN/WAN

The LAN/WAN bandwidth requirement is based directly on traffic. Therefore, it does not depend on
the traffic model used nor on the number of Virtual Trunks (either input or calculated) used for other
calculations.
Calculating MG 1000B bandwidth with Virtual Trunk
1. Calculate the Virtual Trunk traffic.
VTRK_CCS = VTRK_CCS (from procedure, Calculating traffic, step 4) = 396 CCS
2. Calculate the IP Set to Main Office traffic .
Intra_IP_CCS = Intra_IP_CCS (from procedure, Calculating traffic, step 3) = 324 CCS
3. Calculate total LAN/WAN traffic.
Total_WAN_CCS = Intra_IP_CCS + VTRK_CCS Total_WAN_CCS = 396 + 324 = 720 CCS
4. Convert Total WAN CCS to Erlangs.
Branch Office Bandwidth Erlangs = Total_WAN_CCS ÷ 36
Note:
36 CCS = 1 Erlang = 720 ÷ 36 = 20 Erlangs
See the Branch Office Bandwidth Erlangs number, in the bandwidth table, to find the corresponding
bandwidth required to carry the traffic to the Main Office. For information about the bandwidth table
and calculating LAN/WAN bandwidth requirements, see Avaya Converging the Data Network with
VoIP Fundamentals , NN43001-260. The codec selection greatly impacts the bandwidth
requirements.
June 2014
Bandwidth requirement for Branch Office LAN/WAN
Number of cards
0
4
1
1
1
Branch Office Installation and Commissioning
Comments? infodev@avaya.com
Devices on cards
DSPs supplied by card
48 Digital telephones
< 23 ports required
DSP daughter cards; this goes
into slot 0 of the MG 1000B core
221