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Fix switch-to-switch link detection by finding all valid last hops

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
Ian Gulliver
2026-01-25 18:01:43 -08:00
parent b503c96252
commit d7bb971edd
2 changed files with 65 additions and 24 deletions
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42
static/index.html
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@@ -112,6 +112,19 @@
white-space: nowrap;
}
.node .root-label {
position: absolute;
top: -8px;
left: 50%;
transform: translateX(-50%);
font-size: 9px;
background: #664;
color: #ffa;
padding: 1px 6px;
border-radius: 8px;
white-space: nowrap;
}
.node:hover {
filter: brightness(1.2);
}
@@ -277,7 +290,12 @@
labelEl.textContent = getLabel(node);
div.appendChild(labelEl);
if (isSwitch(node) && uplinkInfo) {
if (isSwitch(node) && uplinkInfo === 'ROOT') {
const rootEl = document.createElement('div');
rootEl.className = 'root-label';
rootEl.textContent = 'ROOT';
div.appendChild(rootEl);
} else if (isSwitch(node) && uplinkInfo) {
const uplinkEl = document.createElement('div');
uplinkEl.className = 'uplink';
uplinkEl.textContent = uplinkInfo.localPort + ' → ' + uplinkInfo.parentName + ':' + uplinkInfo.remotePort;
@@ -447,10 +465,18 @@
});
});
let bestRoot = allSwitches[0];
for (const edges of adjacency.values()) {
edges.sort((a, b) => getLabel(a.neighbor).localeCompare(getLabel(b.neighbor)));
}
const sortedSwitches = [...allSwitches].sort((a, b) =>
getLabel(a).localeCompare(getLabel(b)));
let bestRoot = sortedSwitches[0];
let bestReachable = 0;
let bestMaxDepth = Infinity;
allSwitches.forEach(candidate => {
for (const candidate of sortedSwitches) {
const visited = new Set([candidate.typeid]);
const queue = [{ sw: candidate, depth: 0 }];
let maxDepth = 0;
@@ -466,11 +492,16 @@
}
}
if (maxDepth < bestMaxDepth) {
const reachable = visited.size;
if (reachable > bestReachable ||
(reachable === bestReachable && maxDepth < bestMaxDepth)) {
bestReachable = reachable;
bestMaxDepth = maxDepth;
bestRoot = candidate;
}
});
}
switchUplinks.set(bestRoot.typeid, 'ROOT');
const visited = new Set([bestRoot.typeid]);
const queue = [bestRoot];
@@ -489,6 +520,7 @@
}
}
}
}
const container = document.getElementById('container');