I have Juniper Ex4200 48P so can any one guide me that how can i set traffic policer per port not with access lists and source ips ?
because i find some documents that explained i should enter source ips. so i want to like as cisco set policer per port.
I assume you want to "police" all the traffic coming out a port regardless of flow/protocol/etc., which Juniper (and others) refer to as a shaper. Start here - https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/cos-shaping-rate-on-phys... . Plenty of other info out there on this subject.
Good luck and HTH.