Sarkis Mkoyan*Yerevan Physics Institute. 2 Alikhanyan Brothers St.,
YerPhI Network Overview
Halabyan24 CRD Lab
Network Management Center
Cosmic Ray Division
Accelerator Building
Link To Grid.am
1024/6 Mbps
Applied & Radiation Physics
Link To WEB ISP
100 Mbps /12 Mbps
Cryogen Lab
Experiment Physics Lab
YerPhi Local Area Network
Theor.Physics dep. building
Mini Accel (Marzik)
OEP building
Accelerator
4 Building
VoIP Server
Mail Server
Firefall Server
Accelerator Admin Build
Servers Segment
Cryogen Lab
Applied & Radiation Physics22 Building
L3 Switch
Cisco 7206 GRID Segment
OEP
Web ISP 100/12 Mbps
Grid.am 1024/6 Mbps
www Server
Ftp Server
RARIUS Server
Net.Monitoring
CE
Grid Cluster
SE
WN-1
WN-2
WN-3
WN-15
Stern Hermes
Bhor Hermes
DNS server
HDX 6000
AANL Voice and Video Conferencing System Components
Open Meetings Video Conferencing Server SIP Server
IP
AANL Local Telephone Network
4-Line Telephone Adapter
Cosmic Ray Division (CRD Network
Nor-Aamberd Station
Aragats Station
11 Mbps 2400Ghz Wireless Link Cisco 1300 AP
90 Mbps 5180 Ghz Wireless Link Microtik
Router
Servers And Workstations
Servers And Workstations
Aragats LAN
Nor-Hamberd LANServers And Workstations
CRD Yerphi LAN
Halabyan-24 CRD Office
22 Building Yerphi
1000 Mbps Fiber Optic
10/100/1000 Mbps Ethernet
The current communications infrastructure at YerPhI has been developed beginning from 1994-1995 and mainly based on 10Mbps Ethernet technology. Later development 2001-2002 by using DESY supported old 10Mbps switches mainly concerned with sufficient enlargement, but actually information backbone itself and its topology remain unchanged. Last development was 2005- 2006 NATO Networking infrastructure project.In the framework of that project 4-wire Fiber optic cable are installed between 6 buildings of Yerphi.The new layer-II switches (one per building) were installed. User level network still manly based on 10 MB Hubs and hub-segmented huge network does not allow securely isolate one segment from other one and using VLANs. Even segmentation via routers does not solve the problem inside the segments themselves. For end users in YerPhI there used Intel based Workstations with Linux and Windows platforms.All computing facilities are included in YerPhl's Local Area Network. YerPhI LAN includes 10 buildings, covering big enough area. Practically all types of services with TCP/IP protocol stack are available for end users.In total YerPhI computer network consists of over 400 workstations. They are located in 10 buildingsAt Yerphi and Aragats ,Nor-Hamberd Stations (see Site Diagram).
YerPhI Bandwidth Allocation and Firewall PoliciesYerPhI LAN has two outbound channels 12 Mbps through Web LLC and 6 Mbps through National Academy of Science of Armenia. YerPhI is a RIPE member (AS12304) and owns 8xC class IP address ranges.IP Space is divided in 3 groups. IP Group “Grid” members and policies:GRID ClusterGrid oriented servers and services ALICE,ATLAS Collaboration WorkstationsAccess to ASNET and Educational Network 1000 MbpsAccess to Outside Armenia 6 MbpsNo session LimitsIP Group “Privilege” members and policies:DESY Collaboration servers and WorkstationsJLAB Collaboration servers and WorkstationsCRD Servers Access to ASNET and Educational Network 1000 MbpsAccess to Outside Armenia 12 Mbps channel trough Web LLCPrivilege Level min 70 % max 95% of available bandwidthLimit per session is 1,6 MbpsIP Group “Workstations” members and policies:YerPhI LAN WorkstationsAccess to ASNET and Educational Network 1000 MbpsAccess to Outside Armenia 12 Mbps channel trough Web LLCPrivilege Level min 30 % max 95% of available channelSession limit 512 Kbps
List of Extra works performed by AANL(Yerphi) Computer Center StaffDuring 1-th quarter 2012
JAN,Feb,MAR
Video conferencing equipment deployment, configuration, testing.
Local Video Conferencing “Open Meeting” server Installation, currently in pre-production testing phase.
VoIP “Asterisk” server Installation connectivity to Yerphi local telephone PBX for 4 channels, currently in pre-production testing phase.
Grid worker nodes RAM and HDD upgrade.
Installing on 8 nodes Scientific Linux OS Grid software.
Participating to world-wide WiFi roaming access service RADIUS authentication and authorization Server installation and configuration.