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Build Ansible playbooks to configure network devices and pull operational state, using inventories, the ios_config module, Ansible Galaxy, Jinja2 templates, and YAML data structures.
Apply DevOps practices to network operations: compare Waterfall and Agile methodologies, explore NetDevOps pipelines, and manage automation environments with Python virtual environments, Vagrant, and Docker.
Compare LANs, WANs, and cloud networks, map OSI and TCP/IP layers, contrast IPv4 with IPv6 and TCP with UDP, and explore VLANs, Wi-Fi 6E, and 5G.
Learn how YANG data models standardize network device access: explore YANG structure and tooling, compare NETCONF and RESTCONF, and drive both from Python libraries.
Differentiate MPLS devices and components, decode label fields and label stacks, trace LDP neighbor discovery and session negotiation, and compare MPLS services and applications.
Learn how MPLS VPNs work: compare overlay and peer-to-peer VPN models, then examine route distinguishers, route targets, virtual routing tables, MP-BGP propagation, and label forwarding.
Configure and troubleshoot a multihomed transit AS: IBGP and EBGP interaction, BGP-to-IGP coordination, recursive route lookup, and IBGP monitoring commands.
Configure, monitor, and troubleshoot BGP with Cisco IOS commands: path attributes, neighbor session establishment, route selection and propagation, and common session startup issues.
Design complex MPLS VPNs: build overlapping and central services topologies with route targets and VRF import/export, limit routes, and integrate Internet access services.
Configure, verify, and troubleshoot frame-mode MPLS on Cisco IOS: label distribution, PHP, LDP convergence, Cisco Express Forwarding, label-switching MTU, and IP TTL propagation.
Configure and monitor MPLS TE tunnels on Cisco IOS: tunnel attributes, link-state path discovery, RSVP signaling, constraint-based path computation, and assigning traffic to tunnels.
Configure and troubleshoot MPLS VPNs on Cisco IOS: build VRF tables, establish MP-BGP sessions between PE routers, and run OSPF, EIGRP, RIP, and BGP PE-CE routing.
Plan and deploy QoS in converged networks: apply best-effort, IntServ and DiffServ models, classify and mark traffic, and configure Cisco Modular QoS CLI and AutoQoS.
Configure Cisco QoS tools to tame congestion: WFQ, CBWFQ and low latency queuing, RED/WRED/ECN avoidance, class-based policing and shaping, header compression and link fragmentation.
Influence BGP path selection across multiple providers: set weight, local preference, AS path prepending, MED, and communities with default settings and route maps in Cisco IOS.
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