JFlow & Junos Traffic Vision

https://www.juniper.net/us/en/local/pdf/app-notes/3500204-en.pdf

AC5K sflow configuration:

https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/sflow-acx5k-series-cli.html

EX sflow:

https://www.juniper.net/documentation/en_US/junos/topics/reference/configuration-statement/collector-edit-protocols-sflow-ex-series.html

user@switch# set collector <ip-address>
user@switch# set collector udp-port <port-number>
user@switch# set interfaces interface-name
user@switch# set polling-interval seconds
user@switch# set sample-rate number

Restrictions

Flow monitoring can be configured in version 5, version 8, or version 9 export mode. Up to eight version 9 collectors are supported in export mode

SRX5400, SRX5600, and SRX5800 do not support multiple collectors like SRX300, SRX320, SRX340, SRX345, and SRX550HM devices.

Only one V9 collector per IPv4 or IPv6 is supported

https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/services-version-9-flow-template-flow-aggregation-configuring.html