a case study of installing 48 e1 with elastix
DESCRIPTION
Belief Mo OpenVox ElastixWorld 2012TRANSCRIPT
A Case Study of Installing 48 E1 with Elastix
Belief Mo www.openvox.cn
Agenda
l The Background l The Past l The Present
l A Successful Case Study l The Challenges l The Solutions l The Results
l The Future
The Background
l The Past l A brief history
l Asterisk in 2002 l OpenVox in 2002 l trixbox CE in 2006 l FreeIris (Asterisk-based) in 2007 l AsterCC (Asterisk-based) in 2007 l FreeSWITCH in 2008 l Elastix (Chinese Version) in 2010
l The Present l Asterisk
l Asterisk Community l Elastix Community (Largest) l trixbox Community l Other asterisk-based software communities
l FreeSWITCH l FreeSWITCH-CN Google/QQ Group �
l The Percentage of Users (by VoIP88.com)
l Elastix l From Zero to Hero l The Key to No.1
l Chinese GUI l Chinese Tech Docs l Local Manufacturer Support l Marketing Campaigns
Agenda
l The Background l The Past l The Present
l A Successful Case Study l The Challenges l The Solutions l The Results
l The Future
A Successful Case Study�
l Implementing 32 E1 Ports in a Single System �
A Bigger One
l Installing 48 E1 in a Single Elastix System�
l The Challenges l High Density Concurrent Calls l Asterisk/Elastix is also a Limit
l The Solutions l OpenVox D430 (4 Port E1, Advanced Version)
l Adjustable Interrupt Routing Design l Interrupts Frequency Adjustment l FPGA Design, Upgradeable Firmware Onsite
l V1.5 Latest Firmware l APU (embedded application specific processor unit)�l IRQ Agent
l Elastix
Step 1
l Hardware Configuration�l D430E * 12pcs
l MB: Intel DBS2600CP2 ( 2 CPUs Supported)
l Ram: 8GB l CPU: Intel Xeon E5-2640 @2.5GHz�
l OpenVox PCIe Slot Expansion Board(4 PCIe per board)�
l The Connection
l Hardware Configuration l 6 D430 set as NET l 6 D430 set as CPE
l Winsip calls NET->E1->CPE->answer and play audio.�
Step 2 �
l Software Configuration l lspci (recognize D430, must be V1.5 to support 12
cards to work together.)
l ulimit -n (asterisk supports max 1024 files by default, 12 cards will need 12288 files.)
l load driver, 1488 channels (31*4*12=1488) l cat/proc/interrupts {only one(#26) IRQ # is
registered by one wct4xxp; it’ll be 12 before IRQ agent}
l asterisk -r l pri show spans (48 spans are up)
The Elastix GUI
l The System Info
Hardware Detector
l Winsip call test (about 3 hours)
l top (CPU load: 452.4%)
l The Results l 70%-580% CPU loads l The System is very stable. l Great Voice Quality l The Largest Density Installation that We’ve done
with Elastix
Agenda
l The Background l The Past l The Present
l A Successful Case Study l The Challenges l The Solutions l The Results
l The Future
The Future �
l The Challenge - Are we ready for this fast-growing market? l OpenVox
l 8/16 port E1 products l Hot-plug VoIP gateway
l Elastix�
l Questions?
l Thank you!