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feat(core): modems run — the pair in the project, and a modem of another project hands its frames on (K0–K2)

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Measured first: tools/java-oracle's ModemRun joins two networks by a pair
of Java modems over TCP on localhost. The modem has no card and adds no
delay of its own — a frame takes the cables on both sides, nothing more.

The core pairs the two enabled modems on a port (Swift's inProject, with
its conditions and cycle suppression) on Java's timing: no 20 ms. The
modem example of FILIUS now pings through instead of failing the core.
A modem of another project (relay) gives its frames to whoever runs the
engine and puts on its cable what comes back, with this engine's frame
and packet numbers; a frame dies after MAXIMUM_RELAY_HOPS trips.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
julian.kiedaisch
2026-10-11 18:12:27 +00:00
co-authored by Claude Opus 5.5
parent 6f583616f6
commit c85b0e45da
19 changed files with 1743 additions and 44 deletions
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packages/core/test/scenarios/modem-java-unconnected.java.json
+193
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{
"frames": {
"00000000-0000-0000-0000-000000000401": [
{
"time": 717,
"source": "02:00:00:00:04:11",
"destination": "FF:FF:FF:FF:FF:FF",
"arp": 1,
"senderIp": "10.0.0.1",
"targetIp": "10.0.0.2"
},
{
"time": 3468,
"source": "02:00:00:00:04:11",
"destination": "FF:FF:FF:FF:FF:FF",
"arp": 1,
"senderIp": "10.0.0.1",
"targetIp": "10.0.0.2"
}
],
"00000000-0000-0000-0000-000000000403": [],
"00000000-0000-0000-0000-000000000407": [
{
"time": 838,
"source": "02:00:00:00:04:11",
"destination": "FF:FF:FF:FF:FF:FF",
"arp": 1,
"senderIp": "10.0.0.1",
"targetIp": "10.0.0.2"
},
{
"time": 3579,
"source": "02:00:00:00:04:11",
"destination": "FF:FF:FF:FF:FF:FF",
"arp": 1,
"senderIp": "10.0.0.1",
"targetIp": "10.0.0.2"
}
]
},
"rows": {
"00000000-0000-0000-0000-000000000401": [
[
"1",
"02:00:00:00:04:11",
"FF:FF:FF:FF:FF:FF",
"",
"Netzzugang",
"0x806"
],
[
"1",
"10.0.0.1",
"10.0.0.2",
"ARP",
"Vermittlung",
"Suche nach MAC für 10.0.0.2 [op=REQUEST, sender=02:00:00:00:04:11|10.0.0.1, target=FF:FF:FF:FF:FF:FF|10.0.0.2]"
],
[
"2",
"02:00:00:00:04:11",
"FF:FF:FF:FF:FF:FF",
"",
"Netzzugang",
"0x806"
],
[
"2",
"10.0.0.1",
"10.0.0.2",
"ARP",
"Vermittlung",
"Suche nach MAC für 10.0.0.2 [op=REQUEST, sender=02:00:00:00:04:11|10.0.0.1, target=FF:FF:FF:FF:FF:FF|10.0.0.2]"
]
],
"00000000-0000-0000-0000-000000000403": [],
"00000000-0000-0000-0000-000000000407": [
[
"1",
"02:00:00:00:04:11",
"FF:FF:FF:FF:FF:FF",
"",
"Netzzugang",
"0x806"
],
[
"1",
"10.0.0.1",
"10.0.0.2",
"ARP",
"Vermittlung",
"Suche nach MAC für 10.0.0.2 [op=REQUEST, sender=02:00:00:00:04:11|10.0.0.1, target=FF:FF:FF:FF:FF:FF|10.0.0.2]"
],
[
"2",
"02:00:00:00:04:11",
"FF:FF:FF:FF:FF:FF",
"",
"Netzzugang",
"0x806"
],
[
"2",
"10.0.0.1",
"10.0.0.2",
"ARP",
"Vermittlung",
"Suche nach MAC für 10.0.0.2 [op=REQUEST, sender=02:00:00:00:04:11|10.0.0.1, target=FF:FF:FF:FF:FF:FF|10.0.0.2]"
]
]
},
"layeredRows": {
"00000000-0000-0000-0000-000000000401": [
[
"1",
"02:00:00:00:04:11",
"FF:FF:FF:FF:FF:FF",
"",
"Netzzugang",
"0x806"
],
[
"1",
"10.0.0.1",
"10.0.0.2",
"ARP",
"Vermittlung",
"Suche nach MAC für 10.0.0.2 [op=REQUEST, sender=02:00:00:00:04:11|10.0.0.1, target=FF:FF:FF:FF:FF:FF|10.0.0.2]"
],
[
"2",
"02:00:00:00:04:11",
"FF:FF:FF:FF:FF:FF",
"",
"Netzzugang",
"0x806"
],
[
"2",
"10.0.0.1",
"10.0.0.2",
"ARP",
"Vermittlung",
"Suche nach MAC für 10.0.0.2 [op=REQUEST, sender=02:00:00:00:04:11|10.0.0.1, target=FF:FF:FF:FF:FF:FF|10.0.0.2]"
]
],
"00000000-0000-0000-0000-000000000403": [],
"00000000-0000-0000-0000-000000000407": [
[
"1",
"02:00:00:00:04:11",
"FF:FF:FF:FF:FF:FF",
"",
"Netzzugang",
"0x806"
],
[
"1",
"10.0.0.1",
"10.0.0.2",
"ARP",
"Vermittlung",
"Suche nach MAC für 10.0.0.2 [op=REQUEST, sender=02:00:00:00:04:11|10.0.0.1, target=FF:FF:FF:FF:FF:FF|10.0.0.2]"
],
[
"2",
"02:00:00:00:04:11",
"FF:FF:FF:FF:FF:FF",
"",
"Netzzugang",
"0x806"
],
[
"2",
"10.0.0.1",
"10.0.0.2",
"ARP",
"Vermittlung",
"Suche nach MAC für 10.0.0.2 [op=REQUEST, sender=02:00:00:00:04:11|10.0.0.1, target=FF:FF:FF:FF:FF:FF|10.0.0.2]"
]
]
},
"events": [
[
713,
"sendProbe 10.0.0.2 called"
],
[
6224,
"sendProbe 10.0.0.2 returned ICMP 3/1 from 127.0.0.1"
]
]
}