Customer faced issue while configuring sampling under logical interface and seeking an alternative method for configuring sampling in PTX10003 routers.

While configuring sampling under the IFL, we observed the following warning

labroot# run show configuration interfaces et-0/0/5

vlan-tagging;

unit 666 {

description " Connection to vrf:internet-public-routing ";

vlan-id 666;

family inet {

filter {

input filter_1;

}

##

## Warning: configuration block ignored: unsupported platform (ptx10003-160c)

##

sampling {

input;

}

address 10.0.0.1/31;

}

After analyzing the logs, we observed a warning indicating that configuring sampling under an IFL is not supported. This is a known limitation of PTX10003 routers, as they do not support sampling at the interface level. We informed the customer that sampling via firewall filter is supported and provided the relevant Juniper documentation outlining the configuration steps.

Please find below the link for Juniper documentation.

https://www.juniper.net/documentation/us/en/software/junos/flow-monitoring/topics/task/inline-flow-ptx-configuring.html