Internal CSIM network

Topology:

ethernet thinwire and twisted pair

Address:

192.41.170/24

Autonomous system:

4767

Switch:

Cisco, Catalyst 3000

Segments:

5, thinwire

Servers:

8, heterogenous

Routers:

2, heterogenous

A more detailed information about the network cabling is available.

Main CSIM Router

Brand:

Cisco

Model:

2514

Name:

csrouter1.cs.ait.ac.th

Description:

2 ethernet 10Mb ports, 2 serial ports

Port eth1:

address 192.41.170.100, connect to internal CSIM network

Port eth2:

address 203.159.0.129, connect to Internet worldwide through AIT network

Port ser1:

address 192.150.250.230, connect to Nectec and Thailand, is a back up for Japan and worldwide Internet

AIT network

Statistics to AIT network and wide Intervnet through Worldnet.

Nectec and Thailand

Physical support:

tiwsted pair, microwave

Speed:

64 Kbits/second

DSU/CSU:

Nokia, BB512

Peering address:

192.150.250.229

Statistics.

Firewall

Hardware:

ALR, pentium 100 MHz, 500MB disk, 2 ethernet adapters

Adapter eth1:

brand Longshine, running Western Digital WD8013 compatible mode, address 192.41.170.23

Adapter eth2:

brand Longshine, running Western Digital WD8013 compatible mode, address 203.159.32.1

Perimeter Network

Topology:

ethernet twisted pair

Address:

203.159.32.0/30

Autonomous system:

4767

AI³ router This router connects to Japan through AI³ satellite network. It acts as a backup for the main connection to Internet. Hardware: ALR, pentium 100 MHz, 1.2GB disk, 2 ethernet adapters, 1 serial adapter Software: BSDi, version 2.1, WISH drivers Name: ai3gate.cs.ait.ac.th Adapter ser1: brand Riscom/N2, address 202.249.47.14 Adapter eth1: brand SMC Western Digital 8013, address 202.249.47.65 Adapter eth2: brand Longshine, running Western Digital WD8013 compatible mode, address 203.159.32.2

Topology:

ethernet thinwire

Address:

202.249.47.64/28

Autonomous System:

4717

Satellite modem The modem connects the serial port of the AI³ router to the tranceiver. Brand: Comstream Model: CM701 Hardware configuration: Tranfer rate: 1.536 Mbit/second Tx Frequency: 78.750 MHz Tx symbol rate: 1024 Tx FEC coding: Seq 3/4 Tx modul;ation type: QPSK Tx differential encoding: ON Tx filter mask: Comstream Tx power: -20dB Tx timing: ? Tx scrambling: Comstream Rx Frequency: 82.250 MHz Rx data rate: 1536000 bps Rx symbol rate: 1024 Rx modulation type: QPSK

Tranceiver The tranceiver receive the radio signal from the satellite and send it to the modem. It also receive the data signal from the modem and send it to the satellite. Brand: LC3 Model: serie 8200, 8 watts Configuration: Force Redundancy: UNKNOWN Toggle auxiliary output 1: aux output 1 OFF Toggle auxiliary output 2: aux output 2 OFF Tx Frequency: 14056 MHz Tx power backoff: 9dB Low RF power alarm: NO Rx frequency: 12306 MHz Rx Gain control: +0dB Startup delay: 0 second Rx control (EFC): 128 amu Override PA rated power: NO - (rated power: 39 dBm) Internal poll address: 1

Antenna dish

Brand:

Prodelin

Model:

3.8 meters diameter, Ku-band

Location:

100°37' east, 14°05' north

Elevation:

54.6°

Azimuth:

114.6°

Link from AIT to JCSAT3 Up link: frequency 14.06475 GHz Down link: frequency 12.31825 GHz, bandwidth 1.5 MHz, modulation QPSK, FEC SEQ R=3/4 Traffic statistics, link performace. JCSAT-3 satellite This satellite from Japan Satellite Systems, Inc., has started his operation in late 1995. Manufacturer: Hughes Aircraft Model: HS-601, high powered, 3 axis stalibized Ku-Band: 28 transponders, sixteen in 27 MHz and twelve in 36 MHz C-band: 12 transponders (36 MHz) Nominal Orbital Longitude: 128° east

Link from JCSAT3 to NAIST

Up link:

frequency

Down link:

frequency

Peer ground station

Antenna dish:

Tranceiver:

Modem:

Router:

Address:

202.249.47.13

Contact us: Olivier Nicole

Last update: Feb 2000