Difference between revisions of "Hall Network Specifications"
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* Based on 10**8 photons/sec, 200 kHz trigger rate, existing L1 rejection algorithm, block=1 mode, no compression. | * 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. | * 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. | + | * We own about 15 24-port managed switches with 10 GBit/s fiber uplinks, some being used in EEL building and other places. |
* 8-port managed switches with 1 GBit/s fiber uplinks exist. | * 8-port managed switches with 1 GBit/s fiber uplinks exist. | ||
* Only managed switches (no hubs!) allowed in hall. | * Only managed switches (no hubs!) allowed in hall. | ||
* Fibers come in bundles of 12 or 24, 2 fibers needed for one uplink. | * 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. | * 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. | * DAQ crates require two Ethernet connections each, one for the ROC and one for the fan tray. | ||
* ROC's each need an RS232 connection to a terminal server, terminal servers require an Ethernet connection. | * ROC's each need an RS232 connection to a terminal server, terminal servers require an Ethernet connection. | ||
* Each terminal server has xxx ports. | * Each terminal server has xxx ports. | ||
− | * | + | * |
Revision as of 09:53, 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
- 11-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.
- 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.
- ROC's each need an RS232 connection to a terminal server, terminal servers require an Ethernet connection.
- Each terminal server has xxx ports.