Title: SCD Computer Room Networking Basil Irwin et' al' Senior Network Engineer Network Engineering and Tec
1SCD Computer Room NetworkingBasil Irwin (et.
al.)Senior Network EngineerNetwork Engineering
and Technology Section (NETS) April 6, 1999
2Introduction
3SCD Computer Room is Focus of Three Major
Networking Functions
- Focus of SCD Networking
- Focus of UCAR Networking
- Focus of Wide Area Networking
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5SCD Computer Room Contains Two Types of Networks
- The NCAR MSSs 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
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7Conceptual User Access To SCD Resources
8 Conceptual User Access to SCDs Supercomputers
and the NCAR MSS
- Local NCAR/UCAR user access
- Dialup NCAR/UCAR user access
- Remote university user access
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10Actual SCD Computer Room Networks
11SCD 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
12SCD 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
13Types of Networking Equipment
- Cisco 1010 ATM switches (5)
- Cisco 5500 Ethernet Packet Switches (20)
- Cisco 7507 Routers (5)
- Cisco 4700 Router (1)
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15ML Cabling Hub
16Hub For ML Site Cabling
- Cabling hub for the Mesa Lab site
- Cabling hub for the computer room itself
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18SCD Computer Room Futures
19Going 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
20The End