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Introduction

SCD Computer Room Networking Basil Irwin (et. al.) Senior Network Engineer Network Engineering and Technology Section (NETS) April 6, 1999. Introduction. SCD Computer Room is Focus of Three Major Networking Functions. Focus of SCD Networking Focus of UCAR Networking

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Introduction

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  1. SCD Computer Room NetworkingBasil Irwin (et. al.)Senior Network EngineerNetwork Engineering and Technology Section (NETS) April 6, 1999

  2. Introduction

  3. SCD Computer Room is Focus of Three Major Networking Functions • Focus of SCD Networking • Focus of UCAR Networking • Focus of Wide Area Networking

  4. SCD Computer Room Contains Two Types of Networks • The NCAR MSS’s SAN HIPPI Network • So-called “backend” network • Not an IP-based network • Virtual-channel-switching • MSS Group maintains the MSS HIPPI network • Packet-based LANs/MANs/WANs • So-called “frontend” networks • Mostly IP • Plus a tad of AppleTalk, DECnet, NetBIOS, etc. • NETS maintains these networks

  5. Conceptual User Access To SCD Resources

  6. Conceptual User Access to SCD’s Supercomputers and the NCAR MSS • Local NCAR/UCAR user access • Dialup NCAR/UCAR user access • Remote university user access

  7. Actual SCD Computer Room Networks

  8. SCD Computer Room Networking • Supercomputer networks • Connects supercomputers to each other and to external services • Use to be exclusively FDDI • Now lots of Fast Ethernet (100-Mbps) too • Soon to include 1000-Mbps • Computer Room Host LANs • Connect to SCD/UCAR Servers: DNS, email, NFS, SAMBA, login, authentication, web, etc. • Ethernet, Fast Ethernet, FDDI, and ATM • To include 1000-Mbps in the future

  9. SCD Computer Room Networking (cont.) • Backbone LANs for UCAR networking • Mainly ATM • Some Fast Ethernet (100-Mbps) • Focal point for wide area networking • UCAR dialup access: the RAS • 46 total dialups (soon to be 69) • Includes 4 1-800 ports (soon to be 6) • Includes 1 test line

  10. Types of Networking Equipment • Cisco 1010 ATM switches (5) • Cisco 5500 Ethernet Packet Switches (20) • Cisco 7507 Routers (5) • Cisco 4700 Router (1)

  11. ML Cabling Hub

  12. Hub For ML Site Cabling • Cabling hub for the Mesa Lab site • Cabling hub for the computer room itself

  13. SCD Computer Room Futures

  14. Going to 1000-Mbps • For hosts: • OC-12 ATM (622-Mbps) • Gigabit Ethernet (1000-Mbps) • For networks: • OC-12 ATM (622-Mbps) • Gigabit Ethernet (1000-Mbps) • Host & network decisions can be different • Can have mixed environment if needed • Mixed 1000-Mbps networking types • Mixed 1000-Mbps host-connection types • Planning documents for 1000-Mbps upgrades

  15. The End

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