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NX-OS_Configuration.md

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NX-OS Telemetry Configuration

Event-based

Needs to be configured with sample-interval 0

Interface Discovery / Up|Down State

  sensor-group 1
    path sys/intf depth unbounded query-condition query-target=subtree&query-target-filter=or(deleted(),created())
  sensor-group 2
    path sys/intf depth unbounded filter-condition or(and(updated(ethpmPhysIf.operSt),eq(ethpmPhysIf.operSt,"down")),and(updated(ethpmPhysIf.operSt),eq(ethpmPhysIf.operSt,"up")),and(updated(ethpmLbRtdIf.operSt),eq(ethpmLbRtdIf.operSt,"down")),and(updated(ethpmLbRtdIf.operSt),eq(ethpmLbRtdIf.operSt,"up")),and(updated(ethpmEncRtdIf.operSt),eq(ethpmEncRtdIf.operSt,"down")),and(updated(ethpmEncRtdIf.operSt),eq(ethpmEncRtdIf.operSt,"up")))

Failure of fan, dim, flash, sprom, and lc

  sensor-group 5
    path sys/ch depth unbounded filter-condition or(and(updated(eqptFan.operSt),ne(eqptFan.operSt,"ok")),ne(eqptDimm.operSt,"ok"),ne(eqptFlash.operSt,"ok"),ne(eqptSpromSup.operSt,"ok"),ne(eqptSpromLc.operSt,"ok"))

Discovery of anything in sys/ch (chassis related)

  sensor-group 6
    path sys/ch depth unbounded query-condition query-target=subtree&query-target-filter=or(deleted(),created())

Routing/Forwarding

BGP

RR

Have trouble to scale on real fabric with 60k routes. Needs chunking to be activated on NX-OS.

NB: using 9.2(3) there is a bug limiting the output of routes sent over Telemetry using BGP ephemeral to 7k

  sensor-group 10
    data-source NX-API
    path "show bgp ipv4 unicast vrf all”

Workaround to just count the prefixes.

  sensor-group 11
    data-source NX-API
    path "show bgp l2vpn evpn summary"
  sensor-group 12
    data-source NX-API
    path "show bgp ipv4 unicast summary"

Using DME Ephemeral, we need to speficy VRF.

  sensor-group 8
    path sys/bgp/inst/dom-VRF1/af-ipv4-ucast depth unbounded query-condition rsp-foreign-subtree=ephemeral
  sensor-group 9
    path sys/bgp/inst/dom-VRF2/af-ipv4-ucast depth unbounded query-condition rsp-foreign-subtree=ephemeral
  sensor-group 10
    path sys/bgp/inst/dom-VRF3/af-ipv4-ucast depth unbounded query-condition rsp-foreign-subtree=ephemeral

But retrieving all VRF works for L2VPN EVPN AF

    path sys/bgp/inst/dom-default/af-l2vpn-evpn depth 1 query-condition rsp-foreign-subtree=ephemeral

OSPF/ISIS

All

  sensor-group 1
    path sys/ospf depth 4
  sensor-group 2
    data-source NX-API
    path "show isis adjacency"

LLDP

VXLAN EVPN

VNI and NVE Peers

Leaves

  sensor-group 5
    path sys/eps/epId-1/peers depth 2
    path sys/eps/epId-1/nws depth 2

CPU/Mem/Temperature

All

  sensor-group 1
    path sys/ch/supslot-1/sup depth 1
    path sys/procsys depth 1
    path sys/ch depth 4
  subscription X
    dst-grp Y
    snsr-grp 1 sample-interval 5000

Interfaces/MAC/VLAN

Leaves and RR (Super spine)

DME interface counters updates every 36 seconds, lower sample-interval needs to use NX-API.

  sensor-group 2
    data-source NX-API
    path "show interface counters"

VLAN and MAC

  sensor-group 3
    path sys/bd depth 2
    path sys/mac/table depth 1