pipistrello
a4aa0e90fe
Verbose Yealink traces show LDAP binds fail before authentication because the provisioned short hostname SERVERPDC cannot be resolved. The failures started before the separate AD unauthenticated-bind hardening, so credentials and that security change are not the cause.\n\nInclude the explicit domain-resolution signature in current-state, trend, top-phone, and operational-log queries. Update panel guidance to direct investigation toward a resolvable LDAP FQDN or stable IP.\n\nThe added LogQL alternative was executed successfully against production Loki 3.7.2.
464 lines
21 KiB
JSON
464 lines
21 KiB
JSON
{
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"annotations": {
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"list": [
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{
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"builtIn": 1,
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"datasource": { "type": "grafana", "uid": "-- Grafana --" },
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"enable": true,
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"hide": true,
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"iconColor": "rgba(0, 211, 255, 1)",
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"name": "Annotations & Alerts",
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"type": "dashboard"
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}
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]
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},
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"editable": true,
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"fiscalYearStartMonth": 0,
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"graphTooltip": 1,
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"links": [],
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"liveNow": false,
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"panels": [
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{
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"type": "text",
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"title": "How to read this dashboard",
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"gridPos": { "h": 5, "w": 24, "x": 0, "y": 0 },
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"id": 100,
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"options": {
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"mode": "markdown",
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"content": "**Identity is the phone's MAC**, lifted out of the message body into a `mac` label by Alloy (Yealink `static.syslog.prepend_mac_address.enable`). Do **not** use `source_ip` as identity — phones are on DHCP with a 1200 s lease, so a re-IP looks like a new device and a recycled IP would inherit another phone's history. Only devices sending a MAC appear here, so switches sharing this Loki are excluded automatically. *Data from before the MAC rollout has no `mac` label and will not show.*\n\n**Yealink's `error` severity is diagnostic verbosity, not a fleet health verdict.** Firmware-internal messages such as missing optional DHCP attributes, GUI event targets, RTP capture reads, scheduler overruns near the built-in 30 s threshold, kernel register dumps, and provisioning-engine state account for most red lines. Use the narrow **Operational signals** panels first; use raw severity only when investigating one handset.\n\n**The top status cards are intentionally recent.** LDAP and internal-database cards cover the last 15 minutes; provisioning covers the last hour. This prevents a completed fleet rollout or reboot from looking like a current outage for the rest of a 24 h dashboard range. LDAP failures affect directory/search and caller-name lookup, not SIP calling itself.\n\n**A silent phone is not proven healthy or offline.** Most of the fleet runs at log level 3 and only sends selected errors. Registration and DHCP evidence at the bottom is available only from verbose level-6 phones. `severity=emergency` is also excluded from the severity chart because Yealink uses it while printing its boot-time log-level table, not to report an emergency."
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}
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},
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{
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"type": "stat",
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"title": "Phones heard from",
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"description": "Distinct MACs that sent at least one line in range. NOT a health count — level-3 phones stay silent unless something breaks, so this is expected to sit well below the fleet size.",
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"gridPos": { "h": 4, "w": 4, "x": 0, "y": 5 },
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"id": 1,
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"datasource": { "type": "loki", "uid": "${datasource}" },
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"targets": [
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{
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"refId": "A",
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"datasource": { "type": "loki", "uid": "${datasource}" },
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"expr": "count(count by (mac) (count_over_time({job=\"syslog\", mac=~\"$phone\"} [$__range])))",
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"queryType": "instant"
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}
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],
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"options": {
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"reduceOptions": { "calcs": ["lastNotNull"], "fields": "", "values": false },
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"colorMode": "none",
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"graphMode": "none",
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"textMode": "auto"
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},
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"fieldConfig": { "defaults": { "unit": "short", "color": { "mode": "fixed", "fixedColor": "text" } }, "overrides": [] }
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},
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{
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"type": "stat",
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"title": "Log lines",
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"description": "Total lines from MAC-identified phones in range.",
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"gridPos": { "h": 4, "w": 4, "x": 4, "y": 5 },
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"id": 2,
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"datasource": { "type": "loki", "uid": "${datasource}" },
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"targets": [
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{
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"refId": "A",
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"datasource": { "type": "loki", "uid": "${datasource}" },
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"expr": "sum(count_over_time({job=\"syslog\", mac=~\"$phone\"} [$__range]))",
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"queryType": "instant"
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}
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],
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"options": {
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"reduceOptions": { "calcs": ["lastNotNull"], "fields": "", "values": false },
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"colorMode": "none",
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"graphMode": "none",
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"textMode": "auto"
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},
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"fieldConfig": { "defaults": { "unit": "short", "color": { "mode": "fixed", "fixedColor": "text" } }, "overrides": [] }
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},
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{
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"type": "stat",
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"title": "Active LDAP failures (15m)",
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"description": "Distinct phones that could not resolve or contact the LDAP directory in the last 15 minutes. Verbose evidence identifies short-name DNS resolution of SERVERPDC as the cause. This can break directory/caller-name lookup, but not SIP calling itself.",
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"gridPos": { "h": 4, "w": 4, "x": 8, "y": 5 },
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"id": 3,
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"datasource": { "type": "loki", "uid": "${datasource}" },
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"targets": [
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{
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"refId": "A",
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"datasource": { "type": "loki", "uid": "${datasource}" },
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"expr": "count(count by (mac) (count_over_time({job=\"syslog\", mac=~\"$phone\"} |~ \"Domain name resolution failed|ldap_sasl_bind_s|Can't contact LDAP server\" [15m])))",
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"queryType": "instant"
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}
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],
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"options": {
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"reduceOptions": { "calcs": ["lastNotNull"], "fields": "", "values": false },
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"colorMode": "value",
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"graphMode": "none",
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"textMode": "auto"
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},
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"fieldConfig": { "defaults": { "unit": "short", "color": { "mode": "thresholds" }, "thresholds": { "mode": "absolute", "steps": [{ "color": "green", "value": null }, { "color": "yellow", "value": 1 }] } }, "overrides": [] }
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},
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{
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"type": "stat",
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"title": "Recent provisioning failures (1h)",
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"description": "Distinct phones with TFTP/provisioning download failures in the last hour. A short burst during reboot or fleet rollout is expected; a value that remains non-zero deserves investigation.",
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"gridPos": { "h": 4, "w": 4, "x": 12, "y": 5 },
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"id": 4,
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"datasource": { "type": "loki", "uid": "${datasource}" },
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"targets": [
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{
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"refId": "A",
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"datasource": { "type": "loki", "uid": "${datasource}" },
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"expr": "count(count by (mac) (count_over_time({job=\"syslog\", mac=~\"$phone\"} |~ \"tftp to file failed|no config Provisioning Server|DURL<3[+]error\" [1h])))",
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"queryType": "instant"
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}
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],
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"options": {
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"reduceOptions": { "calcs": ["lastNotNull"], "fields": "", "values": false },
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"colorMode": "value",
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"graphMode": "none",
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"textMode": "auto"
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},
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"fieldConfig": {
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"defaults": {
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"unit": "short",
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"color": { "mode": "thresholds" },
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"thresholds": { "mode": "absolute", "steps": [{ "color": "green", "value": null }, { "color": "yellow", "value": 1 }] }
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},
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"overrides": []
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}
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},
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{
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"type": "stat",
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"title": "Web password rejects",
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"description": "Phones logging CUIT 'check passwd err' in the selected range. This is a rejected login to the handset web/UI, not SIP authentication; occasional entries are usually operator mistakes or background probing.",
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"gridPos": { "h": 4, "w": 4, "x": 16, "y": 5 },
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"id": 5,
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"datasource": { "type": "loki", "uid": "${datasource}" },
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"targets": [
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{
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"refId": "A",
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"datasource": { "type": "loki", "uid": "${datasource}" },
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"expr": "count(count by (mac) (count_over_time({job=\"syslog\", mac=~\"$phone\"} |~ \"check passwd err\" [$__range])))",
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"queryType": "instant"
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}
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],
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"options": {
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"reduceOptions": { "calcs": ["lastNotNull"], "fields": "", "values": false },
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"colorMode": "none",
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"graphMode": "none",
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"textMode": "auto"
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},
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"fieldConfig": { "defaults": { "unit": "short", "color": { "mode": "fixed", "fixedColor": "text" } }, "overrides": [] }
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},
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{
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"type": "stat",
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"title": "Internal DB faults (15m)",
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"description": "Phones reporting a malformed internal database or related GUI virtual-machine failures in the last 15 minutes. Unlike ordinary firmware chatter, a persistent value can affect local phone applications and should be checked.",
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"gridPos": { "h": 4, "w": 4, "x": 20, "y": 5 },
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"id": 6,
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"datasource": { "type": "loki", "uid": "${datasource}" },
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"targets": [
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{
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"refId": "A",
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"datasource": { "type": "loki", "uid": "${datasource}" },
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"expr": "count(count by (mac) (count_over_time({job=\"syslog\", mac=~\"$phone\"} |~ \"database disk image is malformed|Null Virtual Machine pointer|Invalid scalar query\" [15m])))",
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"queryType": "instant"
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}
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],
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"options": {
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"reduceOptions": { "calcs": ["lastNotNull"], "fields": "", "values": false },
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"colorMode": "value",
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"graphMode": "none",
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"textMode": "auto"
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},
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"fieldConfig": { "defaults": { "unit": "short", "color": { "mode": "thresholds" }, "thresholds": { "mode": "absolute", "steps": [{ "color": "green", "value": null }, { "color": "yellow", "value": 1 }] } }, "overrides": [] }
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},
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{
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"type": "bargauge",
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"title": "Phones by operational-signal events",
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"description": "Top phones for the narrow signals this dashboard can interpret: LDAP DNS/connectivity, internal database faults, provisioning/download failures, and SIP DNS timeouts. Keyed on MAC so DHCP changes do not split identity.",
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"gridPos": { "h": 9, "w": 12, "x": 0, "y": 9 },
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"id": 7,
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"datasource": { "type": "loki", "uid": "${datasource}" },
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"targets": [
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{
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"refId": "A",
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"datasource": { "type": "loki", "uid": "${datasource}" },
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"expr": "topk(10, sum by (mac) (count_over_time({job=\"syslog\", mac=~\"$phone\"} |~ \"Domain name resolution failed|ldap_sasl_bind_s|Can't contact LDAP server|database disk image is malformed|Null Virtual Machine pointer|Invalid scalar query|tftp to file failed|no config Provisioning Server|DURL<3[+]error|Timeout while contacting DNS servers\" [$__range])))",
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"queryType": "instant",
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"legendFormat": "{{mac}}"
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}
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],
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"options": {
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"reduceOptions": { "calcs": ["lastNotNull"], "fields": "", "values": false },
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"displayMode": "gradient",
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"orientation": "horizontal",
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"showUnfilled": true
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},
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"fieldConfig": { "defaults": { "unit": "short", "color": { "mode": "continuous-GrYlRd" } }, "overrides": [] }
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},
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{
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"type": "bargauge",
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"title": "Loudest phones by log volume",
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"description": "Identifies handsets left at log level 6 (Informational). Yealink's default is level 3 (Error); a phone near the top here is verbose by configuration, not necessarily unhealthy — but it dominates disk and query cost.",
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"gridPos": { "h": 9, "w": 12, "x": 12, "y": 9 },
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"id": 8,
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"datasource": { "type": "loki", "uid": "${datasource}" },
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"targets": [
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{
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"refId": "A",
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"datasource": { "type": "loki", "uid": "${datasource}" },
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"expr": "topk(10, sum by (mac) (count_over_time({job=\"syslog\", mac=~\"$phone\"} [$__range])))",
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"queryType": "instant",
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"legendFormat": "{{mac}}"
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}
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],
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"options": {
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"reduceOptions": { "calcs": ["lastNotNull"], "fields": "", "values": false },
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"displayMode": "gradient",
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"orientation": "horizontal",
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"showUnfilled": true
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},
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"fieldConfig": { "defaults": { "unit": "short", "color": { "mode": "continuous-BlPu" } }, "overrides": [] }
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},
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{
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"type": "timeseries",
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"title": "Operational signals over time",
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"description": "Narrow, interpretable signals separated from firmware error-severity noise. LDAP short-name DNS failure affects directory lookup; internal DB affects local apps; provisioning should settle after boot; SIP DNS timeouts can prevent registration.",
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"gridPos": { "h": 8, "w": 12, "x": 0, "y": 18 },
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"id": 9,
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"datasource": { "type": "loki", "uid": "${datasource}" },
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"targets": [
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{
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"refId": "A",
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"datasource": { "type": "loki", "uid": "${datasource}" },
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"expr": "sum(count_over_time({job=\"syslog\", mac=~\"$phone\"} |~ \"Domain name resolution failed|ldap_sasl_bind_s|Can't contact LDAP server\" [$__interval]))",
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"queryType": "range",
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"legendFormat": "LDAP directory"
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},
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{
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"refId": "B",
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"datasource": { "type": "loki", "uid": "${datasource}" },
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"expr": "sum(count_over_time({job=\"syslog\", mac=~\"$phone\"} |~ \"database disk image is malformed|Null Virtual Machine pointer|Invalid scalar query\" [$__interval]))",
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"queryType": "range",
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"legendFormat": "Internal DB / GUI"
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},
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{
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"refId": "C",
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"datasource": { "type": "loki", "uid": "${datasource}" },
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"expr": "sum(count_over_time({job=\"syslog\", mac=~\"$phone\"} |~ \"tftp to file failed|no config Provisioning Server|DURL<3[+]error\" [$__interval]))",
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"queryType": "range",
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"legendFormat": "Provisioning / download"
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},
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{
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"refId": "D",
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"datasource": { "type": "loki", "uid": "${datasource}" },
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"expr": "sum(count_over_time({job=\"syslog\", mac=~\"$phone\"} |~ \"Timeout while contacting DNS servers\" [$__interval]))",
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"queryType": "range",
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"legendFormat": "SIP DNS timeout"
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}
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],
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"options": {
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"legend": { "displayMode": "table", "placement": "right", "showLegend": true, "calcs": ["sum"] },
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"tooltip": { "mode": "multi", "sort": "desc" }
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},
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"fieldConfig": {
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"defaults": {
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"unit": "short",
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"custom": { "drawStyle": "bars", "lineWidth": 0, "fillOpacity": 80, "stacking": { "mode": "normal", "group": "A" }, "showPoints": "never" }
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},
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"overrides": []
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}
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},
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{
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"type": "timeseries",
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"title": "Diagnostic severity volume (not health)",
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"description": "Shows what the firmware labeled by severity. Do not interpret the red area as failed phones: observed error-level traffic is dominated by benign internal diagnostics. Emergency is excluded because Yealink uses it for a boot-time log-level table.",
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"gridPos": { "h": 8, "w": 12, "x": 12, "y": 18 },
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"id": 10,
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"datasource": { "type": "loki", "uid": "${datasource}" },
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"targets": [
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{
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"refId": "A",
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"datasource": { "type": "loki", "uid": "${datasource}" },
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"expr": "sum by (severity) (count_over_time({job=\"syslog\", mac=~\"$phone\", severity!=\"emergency\"} [$__interval]))",
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"queryType": "range",
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"legendFormat": "{{severity}}"
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}
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],
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"options": {
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"legend": { "displayMode": "list", "placement": "bottom", "showLegend": true },
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"tooltip": { "mode": "multi", "sort": "desc" }
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},
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"fieldConfig": {
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"defaults": {
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"unit": "short",
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"custom": { "drawStyle": "bars", "lineWidth": 0, "fillOpacity": 70, "stacking": { "mode": "normal", "group": "A" }, "showPoints": "never" }
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},
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"overrides": [
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{ "matcher": { "id": "byName", "options": "error" }, "properties": [{ "id": "color", "value": { "mode": "fixed", "fixedColor": "red" } }] },
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{ "matcher": { "id": "byName", "options": "warning" }, "properties": [{ "id": "color", "value": { "mode": "fixed", "fixedColor": "orange" } }] },
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{ "matcher": { "id": "byName", "options": "notice" }, "properties": [{ "id": "color", "value": { "mode": "fixed", "fixedColor": "blue" } }] },
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{ "matcher": { "id": "byName", "options": "informational" }, "properties": [{ "id": "color", "value": { "mode": "fixed", "fixedColor": "green" } }] }
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]
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}
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},
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{
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"type": "logs",
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"title": "Operational signals — investigate these first",
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"description": "LDAP DNS/connectivity, internal database faults, provisioning/download failures, and SIP DNS timeouts. LDAP affects directory features but not calls; verbose phones identify SERVERPDC short-name resolution as the current LDAP cause. Labels show stable MAC and current source IP.",
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"gridPos": { "h": 10, "w": 24, "x": 0, "y": 26 },
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"id": 11,
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"datasource": { "type": "loki", "uid": "${datasource}" },
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"targets": [
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{
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"refId": "A",
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"datasource": { "type": "loki", "uid": "${datasource}" },
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"expr": "{job=\"syslog\", mac=~\"$phone\"} |~ \"Domain name resolution failed|ldap_sasl_bind_s|Can't contact LDAP server|database disk image is malformed|Null Virtual Machine pointer|Invalid scalar query|tftp to file failed|no config Provisioning Server|DURL<3[+]error|Timeout while contacting DNS servers\"",
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"queryType": "range"
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}
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],
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"options": {
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"showTime": true,
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"showLabels": true,
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"showCommonLabels": false,
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"wrapLogMessage": true,
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"enableLogDetails": true,
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"dedupStrategy": "none",
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"sortOrder": "Descending"
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}
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},
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{
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"type": "logs",
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"title": "Raw firmware error severity (diagnostic only)",
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"description": "For per-phone troubleshooting after the operational panels. These lines are not all actionable: Yealink marks substantial internal/boot chatter as error. Only the very high-volume RTP capture signature is removed to keep the panel usable.",
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"gridPos": { "h": 10, "w": 24, "x": 0, "y": 36 },
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"id": 12,
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"datasource": { "type": "loki", "uid": "${datasource}" },
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"targets": [
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{
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"refId": "A",
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"datasource": { "type": "loki", "uid": "${datasource}" },
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"expr": "{job=\"syslog\", mac=~\"$phone\", severity=\"error\"} !~ \"rtpcap get len not enough\"",
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"queryType": "range"
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}
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],
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"options": {
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"showTime": true,
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"showLabels": true,
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"showCommonLabels": false,
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"wrapLogMessage": true,
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"enableLogDetails": true,
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"dedupStrategy": "exact",
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"sortOrder": "Descending"
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}
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},
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{
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"type": "timeseries",
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"title": "SIP registration refresh (level-6 phones only)",
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"description": "REG 'Register: update server' fires at info level, so ONLY handsets left at log level 6 appear here. A gap for such a phone means it lost registration to the PBX (192.168.0.8); an absent phone means it is at level 3, NOT that it is unregistered.",
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"gridPos": { "h": 7, "w": 12, "x": 0, "y": 46 },
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"id": 13,
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"datasource": { "type": "loki", "uid": "${datasource}" },
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"targets": [
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{
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"refId": "A",
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"datasource": { "type": "loki", "uid": "${datasource}" },
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"expr": "sum by (mac) (count_over_time({job=\"syslog\", mac=~\"$phone\"} |~ \"Register: update server\" [$__interval]))",
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"queryType": "range",
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|
"legendFormat": "{{mac}}"
|
|
}
|
|
],
|
|
"options": {
|
|
"legend": { "displayMode": "list", "placement": "bottom", "showLegend": true },
|
|
"tooltip": { "mode": "multi" }
|
|
},
|
|
"fieldConfig": {
|
|
"defaults": {
|
|
"unit": "short",
|
|
"custom": { "drawStyle": "points", "pointSize": 5, "lineWidth": 1, "fillOpacity": 0, "showPoints": "always" }
|
|
},
|
|
"overrides": []
|
|
}
|
|
},
|
|
{
|
|
"type": "logs",
|
|
"title": "DHCP lease events (level-6 phones only)",
|
|
"description": "Lease acquisition/renewal as the phone sees it — notice level, so the same caveat as the registration panel. Useful when a handset is 'connected but dead'. Observed lease time is 1200 s, which is exactly why source_ip is not a safe identity.",
|
|
"gridPos": { "h": 7, "w": 12, "x": 12, "y": 46 },
|
|
"id": 14,
|
|
"datasource": { "type": "loki", "uid": "${datasource}" },
|
|
"targets": [
|
|
{
|
|
"refId": "A",
|
|
"datasource": { "type": "loki", "uid": "${datasource}" },
|
|
"expr": "{job=\"syslog\", mac=~\"$phone\"} |~ \"lease of .* obtained|lease renew\"",
|
|
"queryType": "range"
|
|
}
|
|
],
|
|
"options": {
|
|
"showTime": true,
|
|
"showLabels": true,
|
|
"showCommonLabels": false,
|
|
"wrapLogMessage": true,
|
|
"enableLogDetails": true,
|
|
"dedupStrategy": "none",
|
|
"sortOrder": "Descending"
|
|
}
|
|
}
|
|
],
|
|
"refresh": "5m",
|
|
"schemaVersion": 39,
|
|
"tags": ["yealink", "phones", "syslog", "02-tekhnohim"],
|
|
"templating": {
|
|
"list": [
|
|
{
|
|
"name": "datasource",
|
|
"label": "Datasource",
|
|
"type": "datasource",
|
|
"query": "loki",
|
|
"current": {},
|
|
"hide": 0,
|
|
"refresh": 1,
|
|
"regex": "",
|
|
"skipUrlSync": false
|
|
},
|
|
{
|
|
"name": "phone",
|
|
"label": "Phone (MAC)",
|
|
"description": "Device identity. allValue is '.+' (not '.*') so that 'All' matches only streams that HAVE a mac label — which excludes switches and other non-Yealink senders sharing this Loki.",
|
|
"type": "query",
|
|
"datasource": { "type": "loki", "uid": "${datasource}" },
|
|
"definition": "label_values({job=\"syslog\"}, mac)",
|
|
"query": {
|
|
"label": "mac",
|
|
"refId": "LokiVariableQueryEditor-VariableQuery",
|
|
"stream": "{job=\"syslog\"}",
|
|
"type": 1
|
|
},
|
|
"current": { "selected": true, "text": ["All"], "value": ["$__all"] },
|
|
"includeAll": true,
|
|
"multi": true,
|
|
"allValue": ".+",
|
|
"hide": 0,
|
|
"refresh": 2,
|
|
"sort": 1,
|
|
"skipUrlSync": false
|
|
}
|
|
]
|
|
},
|
|
"time": { "from": "now-24h", "to": "now" },
|
|
"timepicker": {},
|
|
"timezone": "browser",
|
|
"title": "Yealink IP phones — syslog health",
|
|
"uid": "yealink-phones",
|
|
"version": 4,
|
|
"weekStart": ""
|
|
}
|