| 摘要 |
Disclosed is a method for tracing a multicast path by a user equipment. The method comprises: a user equipment generates a user multicast path trace request packet and sends the user multicast path trace request packet to a first routing device connected to the user equipment; the first routing device sends a multicast path trace request packet defined in the mtrace v2.00 draft to an upstream routing device of a multicast distribution tree according to the user multicast path trace request packet until the multicast path trace request packet is sent to a first-hop routing device upstream of the multicast distribution tree; the first-hop routing device converts the multicast path trace request packet into a multicast path trace response packet defined in the mtrace v2.00 draft and sends the multicast path trace response packet to the first routing device; the first routing device generates a feedback packet according to the multicast path trace response packet and sends the feedback packet to the user equipment; and the user equipment parses the displays the received feedback packet. Also disclosed is a system for tracing a multicast path by a user equipment. |
