Ethernet Switching
Ethernet Switching

Network monitoring and sflow analyzer

‎05-25-2019 11:33 PM


Which network monitoring and sflow analyzer do you advise to monitor? We need alert if traffic pattern change or if port goes down. Tried librenms but it has limitations.

Please advise.


Ethernet Switching

Re: Network monitoring and sflow analyzer

‎05-27-2019 08:11 AM

We been using sFlowTrend for several years and it has worked fine

Ethernet Switching

Re: Network monitoring and sflow analyzer

‎06-18-2019 02:58 AM

The more effective and flexible way to monitor your network is using telemetry.


Here is simple steps for starting to understand and use telemetry:


 telemetry-user@juniper-device> show configuration system services extension-service
request-response {
grpc {
clear-text {
port 32767;
notification {
allow-clients {


How to start collector


docker run -ti --rm -v ${PWD}:/u:ro marcelwiget/jtimon --config telemetry.json --print

Here is the jti config file:

"host": "", <-- IP of Juniper device
"port": 32767,
"user": "telemetry-user",
"password": "user123",
"cid": "test",
"grpc" : {
"ws" : 524288
"paths": [{
"path": "/interfaces/interface/subinterfaces/subinterface/state",
"freq": 5000


How to check


telemetry-user@juniper-device> show ephemeral-configuration
services {
analytics {
export-profile export_1000 {
transport grpc;
sensor sensor_1000 {
export-name export_1000;
resource /interfaces/interface/subinterfaces/subinterface/state/;
subscription-id 1000;
reporting-rate 5;