Difference between revisions of "Hall Network Specifications"
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! align="center"| Rack !! DAQ Connections !! Controls Connections !! TS Connections !! Max Single ROC Bandwidth !! Total Uplink Bandwidth !! Fiber Bundle !! Switches !! Terminal Servers !! Possible ROC Fiber Uplinks !! Comment | ! align="center"| Rack !! DAQ Connections !! Controls Connections !! TS Connections !! Max Single ROC Bandwidth !! Total Uplink Bandwidth !! Fiber Bundle !! Switches !! Terminal Servers !! Possible ROC Fiber Uplinks !! Comment | ||
|- | |- | ||
| − | |T1 || 6 || 12 || 6 || <80 MB/s || 151 MB/s || 12 strand || 1 || 1 || 0 || | + | |T1 || 6 || 12 || 6 || <80 MB/s || 151 MB/s || 12 strand || 1 || 1 || 0 || |
|- | |- | ||
| − | |U1A || 0 || 7 || 1 || 0 || low || none || 1 || 0 || 0 || Fiber patch to | + | |U1A || 0 || 7 || 1 || 0 || low || none || 1 || 0 || 0 || Fiber patch to U1B, TS patch to U1B |
|- | |- | ||
| − | |U1B || 5 || 8 || 5 || <50 MB/s || 93 MB/s || 12 strand || 1 || 1 || 0 || | + | |U1B || 5 || 8 || 5 || <50 MB/s || 93 MB/s || 12 strand || 1 || 1 || 0 || |
|- | |- | ||
| − | |U1C || 2 ||3 || 2 || low || low || none || 1 || 0 || 0 || Fiber patch to | + | |U1C || 2 ||3 || 2 || low || low || none || 1 || 0 || 0 || Fiber patch to U1B, TS patch to U1B |
|- | |- | ||
| − | |U1D || 0 || 1 || 0 || 0 || 0 || none || 0 || 0 || 0 || Copper | + | |U1D || 0 || 1 || 0 || 0 || 0 || none || 0 || 0 || 0 || Copper Ethernet patch to U1C |
|- | |- | ||
| − | |N1 || 8 || 13 || 8 || < 80 MB/s || 450 MB/s || 12 strand || 1 || 1 || 0 || | + | |N1 || 8 || 13 || 8 || < 80 MB/s || 450 MB/s || 12 strand || 1 || 1 || 0 || |
|- | |- | ||
| − | |S1 || 8 || 13 || 8 || < 80 MB/s || 450 MB/s || 12 strand || 1 || 1 || 0 || | + | |S1 || 8 || 13 || 8 || < 80 MB/s || 450 MB/s || 12 strand || 1 || 1 || 0 || |
|- | |- | ||
|US1 || 0 || 0 || 0 || 0 || 0 || none || 0 || 0 || 0 || Not sure what's going on here | |US1 || 0 || 0 || 0 || 0 || 0 || none || 0 || 0 || 0 || Not sure what's going on here | ||
|- | |- | ||
| − | |U2A || 9 || 12 || 9 || 100 MB/s || 770 MB/s || 12 strand || 1 || 1 || 5 || 2 fiber patches to | + | |U2A || 9 || 12 || 9 || 100 MB/s || 770 MB/s || 12 strand || 1 || 1 || 5 || 2 fiber patches to D2A if needed |
|- | |- | ||
| − | |U2B || 9 || 12 || 9 || 136 MB/s || 916 MB/s || 12 strand || 1 || 1 || 5 || 2 fiber patches to | + | |U2B || 9 || 12 || 9 || 136 MB/s || 916 MB/s || 12 strand || 1 || 1 || 5 || 2 fiber patches to D2B if needed |
|- | |- | ||
|D2A || 9 || 19 || 10 || < 80 MB/s || 370 MB/s || 12 strand || 2 || 1 || 0 || includes 2 gas shed connections | |D2A || 9 || 19 || 10 || < 80 MB/s || 370 MB/s || 12 strand || 2 || 1 || 0 || includes 2 gas shed connections | ||
Revision as of 15:23, 14 October 2013
Below we propose a design for fiber connections between the Rack Room and the Hall, and network switch and terminal server placement.
- Elliott Wolin, Mark Dalton
- 14-Oct-2013
Notes
- Based on 10**8 photons/sec, 200 kHz trigger rate, existing L1 rejection algorithm, block=1 mode, no compression.
- Ethernet port counts from Fernando's rack layouts and information from Dave Butler concerning other controls requirements.
- We own about 15 24-port managed switches with 10 GBit/s fiber uplinks, some being used in EEL building and other places.
- Switches can uplink 1.25 GBytes/sec.
- 8-port managed switches with 1 GBit/s fiber uplinks exist.
- Only managed switches (no hubs!) allowed in hall.
- Fibers come in bundles of 12 or 24, 2 fibers needed for one uplink.
- Standard JLab practice is to terminate all fibers in patch panel when bundles installed.
- Bundle/patch panel installation is expensive, can run much cheaper patch fibers from switch in one rack area to patch panel in nearby rack area.
- DAQ crates require two Ethernet connections each, one for the ROC and one for the fan tray.
- Some ROC's are only used for control, not DAQ (e.g. BCAL LED Pulser).
- ROC's each need an RS232 connection to a terminal server, terminal servers require an Ethernet connection.
- Each terminal server has xxx ports.
- Can run copper RS232 patch cable from one rack area to terminal server in nearby rack area.
- Will eventually need direct fiber link to ROC if max bandwidth > 80 MB/s, assuming 10**8 photons/sec.
Finally
- No multi-mode fibers are included below, let us know if you need them run anywhere.
| Rack | DAQ Connections | Controls Connections | TS Connections | Max Single ROC Bandwidth | Total Uplink Bandwidth | Fiber Bundle | Switches | Terminal Servers | Possible ROC Fiber Uplinks | Comment |
|---|---|---|---|---|---|---|---|---|---|---|
| T1 | 6 | 12 | 6 | <80 MB/s | 151 MB/s | 12 strand | 1 | 1 | 0 | |
| U1A | 0 | 7 | 1 | 0 | low | none | 1 | 0 | 0 | Fiber patch to U1B, TS patch to U1B |
| U1B | 5 | 8 | 5 | <50 MB/s | 93 MB/s | 12 strand | 1 | 1 | 0 | |
| U1C | 2 | 3 | 2 | low | low | none | 1 | 0 | 0 | Fiber patch to U1B, TS patch to U1B |
| U1D | 0 | 1 | 0 | 0 | 0 | none | 0 | 0 | 0 | Copper Ethernet patch to U1C |
| N1 | 8 | 13 | 8 | < 80 MB/s | 450 MB/s | 12 strand | 1 | 1 | 0 | |
| S1 | 8 | 13 | 8 | < 80 MB/s | 450 MB/s | 12 strand | 1 | 1 | 0 | |
| US1 | 0 | 0 | 0 | 0 | 0 | none | 0 | 0 | 0 | Not sure what's going on here |
| U2A | 9 | 12 | 9 | 100 MB/s | 770 MB/s | 12 strand | 1 | 1 | 5 | 2 fiber patches to D2A if needed |
| U2B | 9 | 12 | 9 | 136 MB/s | 916 MB/s | 12 strand | 1 | 1 | 5 | 2 fiber patches to D2B if needed |
| D2A | 9 | 19 | 10 | < 80 MB/s | 370 MB/s | 12 strand | 2 | 1 | 0 | includes 2 gas shed connections |
| D2B | 6 | 7 | 6 | < 80 Mb/s | 300 MB/s | 12 strand | 1 | 0 | 0 | TS patch to D2A |
| UN1 | 0 | 20 | 0 | 0 | low | none | 1 | 0 | 0 | Fiber patch to xxx |
