Which of the following statements are TRUE regarding sdp-ping? (Choose 3)

The sdp-ping tool verifies SDP connectivity. It performs in-band, round-trip connectivity tests (C) by sending echo requests and receiving replies through the same labeled path as service traffic. This fundamentally tests the ability to reach the far-end PE router's IP address within the SDP's encapsulation (D). The test is composed of uni-directional probes (the echo request) and replies (the echo reply) that are sent in-band, making (B) also a correct description of the test's components. Together, these capabilities provide a comprehensive check of the SDP's health.

A. Determining the specific hops an SDP traverses is the function of the sdp-traceroute command, not sdp-ping.
E. sdp-ping determines the MTU of the SDP path between PE routers, not the end-to-end service path from customer ingress to customer termination.

1. Nokia 7750 SR OS OAM and Diagnostics Guide, Release 21.10.R1, "Service Distribution Path (SDP) OAM". This guide details that sdp-ping is an in-band OAM tool that sends echo requests and expects echo replies, confirming its round-trip nature.

2. Nokia 7750 SR OS OAM and Diagnostics Guide, Release 21.10.R1, "sdp-ping" and "sdp-traceroute" command descriptions. These sections clearly differentiate the functions, assigning connectivity/liveliness checks to sdp-ping and hop-by-hop path discovery to sdp-traceroute.