CCIE Topics

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Network theory
  • Basic software architecture differences between IOS and IOS XE
  • Control plane and Forwarding plane
  • Identify Cisco express forwarding concepts
  • RIB, FIB, LFIB, Adjacency table
  • Load balancing Hash
  • Polarization concept and avoidance
  • Explain general network challenges
  • Unicast flooding
  • Out of order packets
  • Asymmetric routing
  • Explain TCP/IP operations
  • ICMP unreachable, redirect
  • IPv4 options, IPv6 extension headers
  • IPv4 and IPv6 fragmentation
  • TTL and IP MTU
  • IPv4 and IPv6 PMTU
  • MSS, Latency, Windowing, Bandwidth delay product
  • Global synchronization
  • Explain UDP operations
  • Starvation and Latency
  • Network implementation and operation
  • Evaluate proposed changes to a network
  • Changes to routing protocol parameters
  • Migrate parts of a network to IPv6
  • Routing protocol migration
  • Adding multicast support
  • Migrate spanning tree protocol
  • Evaluate impact of new traffic on existing QoS design
  • Network troubleshooting
  • Use IOS troubleshooting tools
  • debug, conditional debug
  • ping, traceroute with extended options
  • Embedded packet capture
  • Performance monitor
  • Apply troubleshooting methodologies
  • Diagnose the root cause of networking issue [analyze symptoms, identify and describe root cause]
  • Design and implement valid solutions according to constraints
  • Verify and monitor resolution
  • Interpret packet capture
  • Using Wireshark trace analyzer
  • Using IOS embedded packet capture
Layer 2 Technologies

LAN switching technologies

  • Implement and troubleshoot switch administration
  • Managing MAC address table
  • errdisable recovery
  • L2 MTU
  • Implement and troubleshoot layer 2 protocols
  • CDP, LLDP
  • UDLD
  • Implement and troubleshoot VLAN
  • Access ports
  • VLAN database
  • Implement and troubleshoot trunking
  • VTPv1, VTPv2, VTPv3, VTP pruning
  • dot1Q
  • Native VLAN
  • Manual pruning
  • Implement and troubleshoot EtherChannel
  • LACP, PAgP, manual
  • Layer 2, layer 3
  • Load-balancing
  • Etherchannel misconfiguration guard
  • Implement and troubleshoot spanning-tree
  • PVST+/RPVST+/MST
  • Switch priority, port priority, path cost, STP timers
  • port fast, BPDUguard, BPDUfilter
  • loopguard, rootguard
  • Implement and troubleshoot other LAN switching technologies
  • SPAN, RSPAN, ERSPAN
  • Describe chassis virtualization and aggregation technologies
  • Multichassis
  • VSS concepts
  • Alternative to STP
  • Stackwise
  • Excluding specific platform implementation
  • Describe spanning-tree concepts
  • Compatibility between MST and RSTP
  • STP dispute, STP bridge assurance
  • Layer 2 WAN circuit technologies
  • Implement and troubleshoot HDLC
  • Implement and troubleshoot PPP
  • Authentication [PAP, CHAP]
  • PPPoE, MLPPP
  • Describe WAN rate-based ethernet circuits
  • Metro and WAN Ethernet topologies
  • Use of rate-limited WAN ethernet services
Static Routing
  • Next Hop
  • Exit Interface
  • Default Routing
  • Floating Route
  • Reliable Static Routing
RIP
  • Basics
  • RIP Version 1 and 2
  • Timers
  • Basic Configuration
  • Authentication
  • Interface level commands
  • Protocol based commands
  • Default-Route
  • Conditional Default-Route
  • Manual Summarization
  • Path Manipulation
  • Filtering
EIGRP
  • Basics
  • EIGRP Packets
  • Classic Metric
  • Basic Commands
  • Redistribute: Route-Map
  • Default Route
  • Path Manipulation
  • Filtering
  • Load Balancing
  • SIA
  • Named Mode
  • Wide Metric
  • Named Mode Features
  • EIGRP OTP
OSPF
  • Basics
  • Packet Types
  • Neighbor States
  • OSPF LSA
  • Type of Area
  • Filtering
  • Additional Command
BGP
  • Basics
  • BGP FSM
  • BGP Packets
  • EBGP Peering
  • eBGP Peering
  • iBGP Peering
  • Full Mesh iBGP
  • Route Reflectors
  • Confederation As
  • Aggregation
  • Default Route
  • Misc
  • TEST
  • Path Attributes
  • Load Balancing
  • Confederation
  • Aggregation
  • Conditional Route Advertisement
  • Inject Map
  • Communities
  • Route-Filtering
  • BGP AS-Migration
  • BGP Dampening
  • ORF
  • Regular Expression
  • Other Commands
IPv6
  • IPv6 Basics
  • IPv6 - ICMPv6
  • IPv6 ND
  • IPv6 Address Types
  • AutoConfig-Eui-64
  • IPv6 Subnetting
  • Basic IPv6 Addressing
  • IPv6 ND Command
  • IPv6 Static Routing
  • RIPng
  • EIGRP - IPv6
  • OSPFv3
  • BGP - IPv6
  • MP-BGP
VPN Services
  • MPLS Basics
  • MPLS LDP Basics
  • MPLS Basic Lab
  • VRF-Lite
  • Routing with VRF-Lite
  • VRF-MPLS
  • BGP - VPNv4
  • BGP - Allow as in and AS-Override
  • BGP-VPNv4 Traffic Flow
  • MPLS Advertise-Label
  • OSPF with MPLS
  • VPNv4 Route-Reflector
  • VRF Import-Map/Export-Map
  • OSPF Sham Link Configuration
  • BGP Backdoor
  • L2-VPN - L2TPv2, L2TPv3
  • MPLS - AToM
  • Overlay Transport VPN
  • VPLS
  • VPN Basics
  • GRE Encapsulation
  • GRE with IPSec Protection
  • DMVPN
  • Routing over DMVPN
  • DMVPN with IPSec Protection
  • BGP over DMVPN
  • Tunnel VRF
  • Routing with Tunnel VRF
  • PBR - Set Global / Set VRF
  • IPSec - VRF - KeyRing
  • IPSec - VPN
  • GetVPN
NAT
  • Tunneling Techniques
EEM
  • EEM
IP Multicast Routing
  • Multicast Basics
  • Multicast Group Addresses
  • Multicast Messages
  • Group Maintenance
  • IGMP - v1, v2, v3
  • Multicast Routing Protocols
  • PIM - Dense Mode
  • PIM - Dense Mode - Theory
  • PIM - Dense Mode - LAB
  • PIM - Sparse Mode - Theory
  • PIM - SP with Static RP
  • RPT and SPT
  • PIM - SP with Auto RP
  • PIM - BSR
  • Inter-AS Multicast Routing
  • MSDP
  • Anycast-RP
  • CGMP, IGMP Snooping, RGMP
  • Bi-Directional PIM
  • Difference in PIM-SP and Dense-Mode
  • Source Specific Multicast
  • IPv6 Multicast Routing
  • IPv6 PIM - Static RP, BSR, Embedded RP
  • Multicast Listener Discovery
Quality of Service
  • QoS Basics
  • QoS Models
  • IP Precedence, DSCP, TOS
  • RSVP
  • Services Affected by QoS
  • Class-Map, Policy Map, Service Policy
  • NBAR Operations
  • Queuing
  • Tail Drop, Modified Tail Drop
  • Shaping and Policing
  • Token Bucket
  • Drop Policies
  • Global Synchronization
  • TCP Starvation
  • QoS Labs
  • Network Management
  • High Availability
  • IS-IS

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