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laforge, 04/21/2022 06:18 PM
- Table of contents
- Colocated Hub
Colocated Hub¶
This page exists to collect some planning about the future colocated OCTOI hub, see #5542
Physical Setup¶
Server (specs)¶
High level:- Some 2U machine with capacity to host preferably >=2 full-height PCIe cards (TE820).
- SRV-IO to map TE820 into a VM for easier debugging of potential DAHDI kernel crashes
- amount of RAM is not very important, the use case has no high RAM requirements
- CPU is more critical given all of the the byte-shifting and lots of copying / context switches we have to do for each trunk in the current software architecture
- storage is also not very critical, other than for log files / monitoring
- laforge has experience with Dell PowerEdge R740 (up to 3 full-height slots)
- gruetzkopf has suggested HP DL830p G8 (up to 6 full-height slots)
- laforge is checking SuperMicro options with riser cards for PCIe
DAHDI cards¶
laforge has at least two TE820 that can be used for this purpose
icE1usb¶
We need at leaset one icE1usb as a GPS-disciplined clock master.
We can also use that one to compare physical (icE1usb+TE820) setups against DAHDI-trunkdev.
We could deploy 1-2 more, just in case.
RAS / dial-up server¶
We should install at least one RAS server next to it, for dial-up modem / isdn termination
- Definitely the Livingston PM3 currently next to the hub. Needs 1xE1 on the Server
- Likely also a Cisco ASR5400 laforge has acquired
Software¶
- Like in the current hub at @laforge's basement, we should run the entire yate / osmo-e1d / dahdi-trunkdev inside a KVM with SRV-IO mapping the PCI devices
Updated by laforge about 2 years ago · 2 revisions