Core Network

1
PolyU Campus Network Infrastructure Diagram
Internet2
Internet
HKIX
(January 2005)
240M
45M
300M
HARNET Internet2 Router

• Administrative System
• Finance Systems
• Student Information Systems

• Administrative System
• Human Resource Systems
• Student Information Systems

MCU
Universities
HARNET Router
HARNET

• Academic Computing
• Research Computing
• myStore
• Web Teaching

• Academic Computing
• General Computing
• Research Computing
• myDrive/myWeb
• SSH Gateway

300M
45M
5M
Traffic Shaper
R7A
R7B
R7C

• e-Services
• University Portal
• HOTS
• LDAP
• DNS

• e-Services
• Campus E-Mail
• University Portal
• Novell GroupWise
• LDAP
• DNS

Internet Router
FireWall
VPN
Web Proxy
Servers in Primary Computer Room
Servers in Secondary Computer Room
Networked PC
Gigabit Ethernet Analyzer
Networked PC with IP Phone
Route/Switch Engine
Ethernet Switch
R1A
R6A
Router
IP Phone
DHCP Client
Departmental VLAN
Load Balancer
Wireless Access Point
R2A
R5A
R5B
ISDN
1Gbps Ethernet
100Mbps Fast Ethernet
Core Network
Legend
Video Conferencing
Wireless Link (100Mbps)
R3A
R4A
R4B
T1 Link (1.54Mbps)
Networked PC
X-Block
NEOC Off -Campus Office
Wireless Link (11Mbps)
IP Phone System
SPAN Gateway
FireWall Traffic Shaper
SPAN WSPAN
PBX
Voice Gateway
Access Server
No. of line 322 (Tel. No. 29315600)
Call Manager
Staff Quarter
Modem Pool
Halls of Residence
PSTN