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EVLA Monitor and Control

EVLA Monitor and Control. M&C Network. Requirements. Connectivity Performance (Predictability) Accessibility Security Configuration Costs. Connectivity . 40+ modulesantenna 28 antennas 22Km range Test port(s) RFI from switches must conform to EVLA RFI plan

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EVLA Monitor and Control

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  1. EVLA Monitor and Control M&C Network EVLA M&C Hardware PDR March 13 2002

  2. Requirements • Connectivity • Performance (Predictability) • Accessibility • Security • Configuration • Costs EVLA M&C Hardware PDR March 13 2002

  3. Connectivity • 40+ modules\antenna • 28 antennas • 22Km range • Test port(s) • RFI from switches must conform to EVLA RFI plan • Antenna Ethernet switches should be in vertex room • Air quality • Temperature control EVLA M&C Hardware PDR March 13 2002

  4. Performance (Predictability) • No collision domain • No retransmits barring fiber error • 3 million packets/sec/switch • 100Mbit dedicated to each module • Latency • Through Fiber ~10 us/3Km • Through switches ~20-30 us • 60-90us aggregate through switches EVLA M&C Hardware PDR March 13 2002

  5. Performance • Antenna state change in < 100 us • > 100 us elapsed time to most antennas • Some buffering must be done on fast switching MIBs EVLA M&C Hardware PDR March 13 2002

  6. Accessibility • Direct Monitoring • From Antenna • From Monitor & Control Network • Proxied Monitoring • From remote NRAO locations • AOC systems, • GB, CV, etc • From non-NRAO locations EVLA M&C Hardware PDR March 13 2002

  7. Security • No direct remote access • Proxied access is controlled via access lists • Control access at all routers • Block all access, then mask in what’s needed • Intrusion detection • Mechanisms for detecting access • Egress filtering/logging • M&C system monitoring EVLA M&C Hardware PDR March 13 2002

  8. Configuration • Class C per antenna • Part of non-routable network class B • IPv4 and IPv6 support in all devices • ICMP support at MIBs • Broadcast capabilities ? • From MIB to network ? • From M&C control system to MIBs ? EVLA M&C Hardware PDR March 13 2002

  9. Costs (at Antenna) • Cisco 3508 Uplink Switch • 1 Chassis @ $3200 • 1Gbit Long Haul (22km) @ $3800 • 4 1Gbit Fan-out connects @ $320 each • $8400 per antenna • Allied Telesyn 16 port fan-out switch • 4 Switches @ $2125 • 4 Uplink (from 3508) @ $350 each • $9900 per antenna • Uplink total + Fan-out total • $18K per antenna • $512K total EVLA M&C Hardware PDR March 13 2002

  10. Costs (at Control Building) • Fan-out to antennas • 1 30 port router (all ZX modules) • Alternatively 8 4 port Cisco 3508 (all ZX modules) • 1 chassis @ $16K • Alternatively 8 3508 Chassis at $3200 • 28 Long Haul ZX Modules @ $3800 each • $122K at control building EVLA M&C Hardware PDR March 13 2002

  11. Costs (Total) • $634K total from Control Building to all 28 antennas • Cost Drivers • 22Km drives costs • Configure close in antennas first • Buy long haul interfaces as needed • Worst case scenario 9 antennas >10Km for A Array • Buy as late as possible EVLA M&C Hardware PDR March 13 2002

  12. Funding • $122K at control building • From WBS 6.7.5.15 from 02-08 • $512K for antennas • All from WBS 6.7.5.15 from 02-08 • Currently only $270K is budgeted in 03 • Need to reinstate ~ $360K and distribute from 02-08 EVLA M&C Hardware PDR March 13 2002

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