topic Re: nexus dashboard insight - telemetry collection status - not ok in Nexus Dashboard

nexus dashboard insight - telemetry collection status - not ok

norazri — Fri, 06 Feb 2026 16:05:18 GMT

nx-os 10.5(1) (C93600CD-GX, C93180YC-FX3, C93108TC-FX3)

nexus dashboard 3.2.2m

insights 6.5.2.56

currently dashboard is empty - no data appear despite switches

- connectivity to insights status indicates OK (insights)

- fabric connectivity to nexus dashboard Up (admin)

dc-switch# show telemetry transport

Session Id Dst Grp IP Address Port Encoding Transport Status
--------------------------------------------------------------------------------
0 501 172.16.239.27 57500 GPB-compact gRPC Transmit Error
0 500 172.16.239.27 57500 GPB gRPC Transmit Error
--------------------------------------------------------------------------------

Retry buffer Size: 10485760
Event Retry Messages (Bytes): 0
Timer Retry Messages (Bytes): 0
Total Retries sent: 0
Total Retries Dropped: 0

dc-switch#

dc-switch# show grpc gnmi service statistics

=============
gRPC Endpoint
=============

Vrf : management
Server address : [::]:50051

Status : Running - certificate expired
Cert notBefore : Jan 24 10:10:06 2026 GMT
Cert notAfter : Jan 25 10:10:06 2026 GMT
Client Root Cert notBefore : n/a
Client Root Cert notAfter : n/a

Max concurrent calls : 8
Listen calls : 1
Active calls : 0
KeepAlive Timeout : 600

Number of created calls : 6727
Number of bad calls : 6726

Subscription stream/once/poll : 0/0/0

Max gNMI::Get concurrent : 6
Max grpc message size : 25165824
gNMI Synchronous calls : 0
gNMI Synchronous errors : 0
gNMI Adapter errors : 0
gNMI Dtx errors : 0

dc-switch#

Re: nexus dashboard insight - telemetry collection status - not ok

norazri — Fri, 06 Feb 2026 16:11:37 GMT

this is an nx-os standalone fabric

Re: nexus dashboard insight - telemetry collection status - not ok

Squerms — Fri, 29 May 2026 06:42:15 GMT

Any joy? Im running v4.2.1 and exactly same issue .. almost identical log output. Im using Out-of-Band for telemetry; ND can obviously reach the switches so not sure what the problem is.
In-band has also been a nightmare to get working which is why I switched to OOB.

Re: nexus dashboard insight - telemetry collection status - not ok

Robert Burns — Fri, 29 May 2026 12:49:46 GMT

What do you see (in 4.2) under Admin > System Status > Telemetry > Switches
Should see some clues here.

Robert

Re: nexus dashboard insight - telemetry collection status - not ok

norazri — Sat, 30 May 2026 08:15:32 GMT

double-check if your firewall is blocking TCP port 57500

At first, I thought the issue was related to “Status: Running – certificate expired.”
However, after resolving the firewall problem, the telemetry stream data was able to pass through.