ISDN POTS V5 Event Configuration » History » Revision 6
Revision 5 (laforge, 08/11/2023 01:55 PM) → Revision 6/10 (jolly, 08/13/2023 10:39 AM)
h1. ISDN POTS V5 Event Configuration This page documents the configuration of our ISDN/POTS V5 access network for evens like the [[ISDN_at_CCC_Camp_2023]] h2. Nokia EKSOS wooden racks We currently have 3 setups using NOKIA EKSOS N20 racks. They contain: * Nokia EKSOS N20 shelf ** NCU (main CPU card) with V5/E1 and Q3/Ethernet interfaces ** any number of PSTN + ISDN BRI line cards (PSTN: 32 ports per card, ISDN: 16 ports per card) ** home-made unit for N20 shelf containing *** nanopi R5S as Linux SoM **** LAN1 port used for Q3 to NCU **** WAN port used for uplink/back-haul\ **** special re-work applied internally to power the R5S from 12V DC without any USB-PD logic *** icE1usb as USB-E1 interface towards the NCU * 48V power supply (trimmed up to ~ 52V) for N20 shelf * 12V power supply for fans + nanopi R5S * 3x 120mm fan (1200 rpm) 12V mounted above N20 rack, airflow in upwards direction * 50-port ISDN patch panel configured as ** ports 1-16: first 16 ports of PSTN card in slot U3 ** ports 17-32: first 16 ports of PSTN card in slot U5 ** ports 33-48: ISDN line card in slot U7 ** ports 49-50: unused h3. nanoPi R5S configuration The nanoPI R5S is configured as follows: * Plain Debian 12 installation using https://github.com/inindev/nanopi-r5 * osmo-e1d package from osmocom:nightly feed ** octoi client to connect to remote octoi server * network config ** DHCP on the @wan@ port (back-haul/uplink) ** software-bridging (@q3br@) between @lan1@ and a @q3vx@ VXLAN device using group 3 on multicast group 239.1.1.1 on the @wan@ port ** static IP 192.168.2.1 on the @lan2@ port (local admin port) h3. V5 configuration Each AN is configured to have * one V5 Interface (ID see below) ** one Link in each V5 interface (Link Id 1) *** one C-Channel (0) on TS16 of Link 1 ** Startup behaviour: V2 ** Accelerated unblocking: Yes ** Disable Link ID Checking: Yes ** Startup during PSTN failure: No |_.Name|_.Number|_.Q3 MAC|_.V5 Interface ID|_.R5S WAN MAC|_.R5S WAN IP| |Berlin|A108.2|00:40:43:f8:55:4a|7108|b4:22:52:84:71:26|10.20.23.145| |Berlin|A108.2|00:40:43:f8:55:4a|7108|?|?| |Leipzig|A096.1|00:40:43:f8:a3:2a|7096|28:2c:44:56:31:22|?| |Hamburg|A107.1|00:40:43:f9:a2:d8|7107|?|?| h2. Siemens Fastlink TBD
