Nokia QoS case studies
Nokia QoS · Put your knowledge to work in context.
The Nokia QoS credential is a specialist certification for network engineers who design, configure, and operate quality-of-service treatment on Nokia IP and transport infrastructure. It suits candidates who already work with Nokia service provider or mission-critical networks - IP routing and switching, mobile transport, or fixed access - and who need to prove they can turn traffic classes into predictable, enforceable behaviour rather than just configure queues. The Nokia QoS case studies are 5 cases and about 2,476 words.
1Voice Jitter After an IPTV Turn-Up on a Shared Uplink
A 7750 SR-7 aggregates a business VPN and a new IPTV service onto one 10 Gb/s network uplink. The business SAP carries 120 Mb/s of VoIP marked DSCP EF and 600 Mb/s of best-effort data.
569 words, about 3 min2Customer DSCP Marking Lost at the PE Trust Boundary
An enterprise customer connects to a PE router over a 1 Gb/s Ethernet SAP in a VPRN. The SLA defines three classes: voice at 20 Mb/s DSCP EF, video at 150 Mb/s DSCP AF41, and business data at 300 Mb/s DSCP CS3.
517 words, about 3 min3H-QoS Oversubscription on a 10 Gb/s Subscriber Port
A 7750 SR BNG serves 500 residential subscribers over a single 10 Gb/s port. The wholesale agreement sells three H-QoS tiers: 100 Platinum subscribers at 50 Mb/s CIR, 200 Gold at 20 Mb/s CIR, and 200 Silver at 5 Mb/s CIR.
477 words, about 2 min4URLLC Delay in a 5G MPLS Backhaul
A 5G non-standalone transport network uses 7750 SR pre-aggregation routers and an MPLS core. A gNB connects through a 1 Gb/s backhaul SAP.
465 words, about 2 min5Intermittent Egress Drops on a Bursty Business Service
A business VPRN service uses a 1 Gb/s SAP on a 7750 SR. The customer reports sporadic TCP retransmissions and VoIP clipping between 10:00 and 11:00, but the monthly SLA report shows 99.98% availability and average utilization of 65%.
448 words, about 2 min