A hotel's MPLS provider contract schedules voice only when the voice class is marked at the handoff into a cloud contact-center path. The internet is not on this path. What must the hotel edge do?
Select an answer to reveal the explanation.
Short Explanation
The provider will queue voice, and only if you tell them which packets those are. You mark the voice class before the MPLS handoff. This path is not the internet, so an IPsec outer header is not what they are reading, and a blank mark gives them nothing to schedule.
Full Explanation
On a private MPLS handoff, a contractual voice class is scheduled only for packets that arrive marked the way the contract says. The hotel edge has to set that class before the handoff. The internet is not on this path, so copying a mark onto an IPsec outer header does not present the class to this provider. Removing all markings leaves the provider unable to tell voice from bulk data, and the contract does not treat every packet as voice. The IPsec anti-replay window is not a voice identifier, and this path is not depending on an IPsec replay check. Exam caveat: the mark has to be the class the contract names. A mark the provider does not schedule is the same as no mark. Operational check: a capture at the handoff should show the voice class on the contact-center packets, and the provider's class counters should increase when those calls run.