Junos sflow config check

I'm trying to send sflow to a collector from juniper vc, does anything look wrong with my config?

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{master:0} [edit protocols]

username@vcname# show sflow

polling-interval 10;

sample-rate {

ingress 500;

egress500;

}

collector ip address of collector {

udp-port 6343;

}

interfaces ge-0/0/7.0;

interfaces xe-0/2/0.0;

interfaces xe-1/2/0.0;

{master:0}[edit protocols]