Tac-Doh runs many delay-sensitive applications across the WAN, including VoIP for internal communications, video, as well as SAP and database transactions. Internet access and general bulk traffic, like file sharing, round out the mix. We weren't interested in remote or SOHO access in this RFP.
We needed a bandwidth boost, and speed, latency and delay are all critical factors to consider. While Qwest couldn't provide end-to-end guarantees for our RFP without engineering the whole enchilada--including contracting with local exchange carriers for the local loop--it did provide us with targeted goals (see "SLA Goals").
Latency and jitter SLAs are well within specs for time-sensitive applications like VoIP and video. By applying CoS (class of service) to prioritize packets entering the Carrier Ethernet network, Tac-Doh should be able to sustain simultaneous voice and data.
Tagged frames are mapped into one of four CoS categories. The highest priority is used for critical network protocols like routing, while other traffic would primarily fall into the three lower classes. Prioritization is used when the local loop is at capacity, and for prioritizing traffic across the WAN. Essentially, Qwest wants to make networking as transparent as possible, leaving traffic engineering decisions in the customer's hands. During initial rollout, Qwest engineers will work with Tac-Doh to map traffic requirements to the four classes of service. Post-rollout changes are managed through the Qwest Control management portal and are usually implemented less than 24 hours after the change request has been reviewed and authenticated.
Poll Positions
Subsea cable alternatives can provide a level of comfort for those concerned about disruptions. Realistically, they will continue to play a small, but critical role in the short term.
Maintaining existing network infrastructures often incurs huge technical debt before newer technologies are adopted over time.
Amid ongoing regional uncertainties, telecom infrastructure in the Middle East has expand to include terrestrial low-latency network infrastructure, which offers resilience and agility in navigating political complexities without relying solely on undersea networks.
