Background Info -

The state of the campus telecommunications infrastructure

in December 2001

Status in December

• Slow speed 10MBS connection to the desktop in offices and labs

• No connectivity in most classrooms• Telephone switch and campus network

router in small room in underground tunnel

• Data communications rooms shared with other functions, such as electrical equipment

Problems• No physical room to expand telephone switch

or network router• Lack of controlled access to data and

telephone equipment in shared rooms• No space in conduits to pull in more cable to

add network and telephone connections• Performance/speed issues on some network

segments• Out of network ports on hubs in many

buildings

Luckily, a solution was on the horizon -

- a CSU system wide project to upgrade the campus data and

telephone infrastructure

Telecommunications InfrastructureProject

Bringing a 21st Century Network Infrastructure to CSUDH

Project Overview

• Two stage, multi-phase project –– Stage I – construction of Network Control

Center, new data communications rooms, pathways, and cable system.

– Stage II – installation of network management software, cable inventory system, and upgraded network electronics (switches).

Project Summary

• Duration: Feb. 18, 2002 - June 17, 2003– extended through December 2003

• Buildings were upgraded in phases, starting with the Student Health Center.

• Division coordinators/building captains were

main point of contact between building occupants and project team.

Project Scope

• New Cat5e phone & data cable to all offices.• New CISCO switches for included buildings.• Gigabit ethernet on the backbone, 100Mbps

to the desktop and each classroom.• All classrooms have at least 2 data

connections and a phone jack, and some will be set up for future wireless access to the network.

• Note: all old cable will be removed!

Project Scope continued

• Improved, dedicated communications rooms (IDFs, BDFs).

• Campus telephone switch and network router relocated to new facility that provides extended UPS capabilities, fire suppression, and room for growth.

• Generator provides power for 24 hours in the event of a major outage.

Project Implementation

• Most inside work was done between 10pm and 6am, so as not to disrupt campus operations.

• Outside construction occurred during the day (trenching, conduits, etc.)

• New network equipment (Stage 2) installed after a building was completely re-cabled.

• Cutover by building (to new data & telephone cable system).

Included Buildings

• Student Health Center

• ERC 1st floor, Theatre, LCH

• Gym, Field House, Hughes Center

• NSM, CP, PP, SBS, SOE

• SCC buildings 6 - 11

• SCC buildings 1-5

What about the other buildings?

• Welch Hall – meets specs – recent construction..

• ERC floors 2-5 - will be remodeled in the future (buying new switches as funding permits).

• SAC 1,2,3 - older CISCO switches will be re-located from buildings covered by this project.

• USU - covered by building addition project.• EAC - meets specs - recent “construction”.

Network Electronics

• Campus core switch - CISCO 6509 (replaces CISCO 8540 router)

• Building switches - CISCO 6509 or CISCO 4006.

• Within building switches - most are 24 or 48 port CISCO 2950s

CISCO Catalyst 6509

• Enterprise/building switch• Scalable platform• 9-slot modular chassis, 1 slot reserved for

supervisor engine• Switching backplane - up to 32 Gbps• Gigabit ethernet interface to other switches• Supports up to 384 10/100 ethernet ports• Routing capability (Layer 3)

CISCO Catalyst 4006

• “Branch office”/building switch

• 6-slot modular chassis, 1 slot reserved for supervisor engine

• Supports up to 240 10/100 ports

• Layer 3 routing capability

CISCO Catalyst 2950

• 24 or 48 port fixed-configuration, stackable switch, 2 GBIC uplink ports

• Note - we are not stacking them - all will have a GBIC uplink to building switch/backbone connection

• MTBF prediction - 159,026 hours (in other words, they are very reliable)

Network Design

• No change in topology (star).

• Completely new parallel network.

• Temporary “bridge” between Cisco 8540 router and new Cisco 6509 core switch to tie old and new networks together until the end of the project.

Network Design (continued)

• All IDF switches will have “home run” fiber connection to BDF switch (no “daisy chains”).

• All BDF switches will connect back to core campus switch in ERC via Gigabit ethernet over fiber.

• Capability for redundant connections will be in place - will be implemented as funds are available.

More Network Design Info

• IP only protocol on new network - no IPX, DECNET, LAT, Appletalk, etc.

• Implementing private IP numbers - all 155.135.XXX.XXX numbers will change to XXX.XXX.XXX.XXX.

• Network address translation will be done at the campus border firewall ( we are purchasing a 2nd firewall).

CAMPUS FIREWALL

INTERNET

155.135.1.1 (DHVX20.CSUDH.EDU)

XX.XX.XX.XX (DHVX20 INTERNAL #)

Benefits to CSUDH

• Ability to deliver video and multimedia applications to classrooms and offices.

• Ability to support next generation applications such as Voice over IP, wireless technologies, and PeopleSoft Student Record system.

• Ability to rapidly adapt to changing technologies over the next few years.

More benefits

• A more reliable, easier to manage campus network that is ten times faster (100 Mbps vs 10Mbps).

• Ability to detect and respond to network problems in a timely manner.

And more ….

• Safer, more secure data communications rooms that meet standards.

• Support for additional telephone and network installations in new Network Control Center as buildings are added and services expanded.

Questions?

Send comments to:

landerson@csudh.edu

Project website:

www.csudh.edu/infotech/infrastructure/