Patent ID: 7796535

Claim:
A method, comprising: sending, by a computer, a first plurality of data packets into a network, each of the first plurality of sent data packets having a same indicated destination, a same first time-to-live (TTL) indication, and a different differentiated services code point (DSCP) marking; sending, by the computer, a second plurality of data packets into the network, each of the second plurality of sent data packets having the same indicated destination, a same second TTL indication different from the first TTL indication, and a different DSCP marking; for each of the first and second pluralities of sent data packets, the computer receiving a reply data packet that identifies the sent data packet, that identifies the computer as a destination of the reply data packet, and that further identifies a DSCP marking; for each of the reply data packets, the computer determining the DSCP marking identified by the reply data packet; and causing a display device to display, for each of the first and second TTL indications, an indication of the determined DSCP markings of the reply data packets that correspond to the sent data packets having that TTL indication.