Here is the initial expanded blueprint for ENARSI! If there are changes to this document, they will be listed in the Change Log below the list. Enjoy your studies!
- 1.0 Layer 3 Technologies
- Troubleshoot administrative distance (all routing protocols)
- Troubleshoot route maps for any routing protocol (attributes, tagging, filtering)
- Troubleshoot loop prevention mechanisms
- Filtering
- Tagging
- Split horizon
- Route poisoning
- Troubleshoot redistribution between any routing protocols or routing sources
- Troubleshoot manual and auto-summarization with any routing protocol
- Configure and verify policy-based routing
- Configure and verify VRF-Lite
- Describe Bidirectional Forwarding Detection
- Troubleshoot EIGRP (classic and named mode)
- Address families
- Neighbor relationship and authentication
- Loop-free path selections
- RD, FD, FC
- Successor
- Feasible successor
- Stuck in active
- Stubs
- Load balancing (equal and unequal cost)
- Metrics
- Troubleshoot OSPF (v2/v3)
- Address families (IPv4, IPv6)
- Neighbor relationship and authentication
- Network types, area types, and router types
- Point-to-point, multipoint, broadcast, nonbroadcast
- Area type: backbone, normal, transit, stub, NSSA, totally stub
- Internal router, backbone router, ABR, ASBR
- Virtual link
- Path preference
- Troubleshoot BGP (Internal and External)
- Address families
- Neighbor relationship and authentication
- Next-hop
- Mulithop
- 4-byte AS
- Private AS
- Route refresh
- Synchronization
- Operation
- Peer group
- States and timers
- Path preference
- Route reflector
- Policies
- Inbound/outbound filtering
- Path manipulation
- 2.0 VPN Technologies
- Describe MPLS operations
- Describe MPLS Layer 3 VPN
- Configure and verify DMVPN (single hub)
- GRE/mGRE
- NHRP
- IPsec
- Dynamic neighbor
- Spoke-to-spoke
- 3.0 Infrastructure Security
- Troubleshoot device security using IOS AAA
- TACACS+
- RADIUS
- Local database
- Troubleshoot router security features
- IPv4 access control lists (standard, extended, time-based)
- IPv6 traffic filter
- Unicast reverse path forwarding (uRPF)
- Troubleshoot control plane policing (CoPP)
- Telnet
- SSH
- HTTP(S)
- SNMP
- EIGRP
- OSPF
- BGP
- Describe IPv6 First Hop security features
- RA guard
- DHCP guard
- binding table
- ND inspection/snooping
- source guard
- 4.0 Infrastructure Services
- Troubleshoot device management
- Console and VTY
- Telnet, HTTP, HTTPS, SSH, SCP
- (T)FTP
- Troubleshoot SNMP
- Troubleshoot network problems using logging
- local
- syslog
- debugs
- conditional debugs
- timestamps
- Troubleshoot IPv4 and IPv6 DHCP
- DHCP client
- IOS DHCP server
- DHCP relay
- DHCP options)
- Troubleshoot network performance issues using IP SLA
- jitter
- tracking objects
- delay
- connectivity
- Troubleshoot NetFlow
- Troubleshoot network problems using Cisco DNA Center assurance
- Connectivity
- Monitoring
- Device health
- Network health