Layer 3 Technologies
- Analysing administrative distance across all routing protocols
- Route maps: attributes, tagging and filtering
- Loop prevention: filtering, tagging, split horizon, route poisoning
- Redistribution between routing protocols and sources
- Manual and automatic summarisation
- Configuring and verifying policy-based routing
- Setting up VRF-Lite
- Understanding Bidirectional Forwarding Detection
- Troubleshooting EIGRP (classic and named mode, VRF and global)
- Troubleshooting OSPFv2 and OSPFv3
- Troubleshooting BGP, internal and external, unicast and VRF-Lite
VPN Technologies
- How MPLS works: LSR, LDP, label switching, LSP
- MPLS Layer 3 VPN
- Configuring and verifying single-hub DMVPN
Infrastructure Security
- Device security with IOS AAA: TACACS+, RADIUS and local database
- Analysing router security features
- Control Plane Policing for Telnet, SSH, HTTPS, SNMP and routing protocols
- IPv6 First Hop Security: RA Guard, DHCP Guard, binding table, ND inspection, source guard
Infrastructure Services
- Analysing device management
- SNMP v2c and v3
- Logging: local, syslog, debugs, conditional debugs and timestamps
- DHCP for IPv4 and IPv6: client, server, relay and options
- Narrowing down performance problems with IP SLA: jitter, tracking, delay, reachability
- NetFlow v5, v9 and Flexible NetFlow
- Troubleshooting with Cisco DNA Center Assurance
