Cisco SPCOR 350-501 case studies
Cisco SPCOR 350-501 · Put your knowledge to work in context.
The Cisco SPCOR 350-501 exam is the core written requirement for the CCNP Service Provider certification and a prerequisite for the CCIE Service Provider lab. It targets network engineers who design, implement, and operate service provider core networks using Cisco platforms such as IOS XR, IOS XE, and NSO. The Cisco SPCOR 350-501 case studies are 5 cases and about 3,443 words.
1SR-MPLS Migration with LDP Islands and Anycast DNS
Northline is a regional ISP with 12 PoPs, 240 routers, a 400G core and 100G edge. Its transport runs LDP plus RSVP-TE for 120 bandwidth-constrained tunnels, 8,000 VPNv4 routes, and 24 multicast streams.
739 words, about 4 min2Route Reflector Scaling and Sub-Second BGP Restoration
A wholesale carrier runs AS 64500 with 180 PE routers, 900 IGP routers, and six BGP route reflectors in three clusters. The network carries 1.4 million IPv4 prefixes, 500,000 IPv6 prefixes, and 250,000 labeled routes.
698 words, about 3 min3Inter-AS L3VPN After Acquisition with Security Constraints
Provider A (AS 65100) with 100 PEs and 2,000 VRFs acquires Provider B (AS 65200) with 60 PEs and 500 VRFs. Both run MPLS L3VPN but use different route-target conventions and separate IGPs.
675 words, about 3 min4QoS and Multicast Design for IPTV, VoIP, and Business VPN
A cable MSO delivers IPTV, VoIP, and business VPN over a 100G core and 10G access nodes. Each access node serves 4,000 subscribers; 300 SD/HD channels are available, and a subscriber watches up to four channels.
679 words, about 3 min5Model-Driven Telemetry and Closed-Loop Assurance at Scale
A service provider manages 3,200 devices from three vendors: 1,800 IOS XR, 1,000 IOS XE, and 400 third-party. The current SNMP poller samples 60,000 interfaces every 5 minutes and cannot support the 10-second interface statistics and 500,000 flow records that the assurance team requires.
652 words, about 3 min