• CCNA Vol 1
    • Vol 1 Part 1: Intro
      • All Content Part 1
      • Ch01: Intro to TCP/IP
      • Ch02: Intro to Ethernet
      • Ch03: Intro Routing, WAN
    • Vol 1 Part 2: Ethernet
      • All Content Part 2
      • Ch04: Command Line
      • Ch05: Ethernet Switching
      • Ch06: Switch Management
      • Ch07: Switch Interfaces
    • Vol 1 Part 3: VLANs, STP
      • All Content Part 3
      • Ch08: Virtual LANs
      • Ch09: Spanning Tree
      • Ch10: RSTP and EtherChannel
    • Vol 1 Pt 4: IP Addresses
      • All Content Part 4
      • Ch11: IPv4 Subnetting
      • Ch12: Classful IPv4 Networks
      • Ch13: IPv4 Subnet Masks
      • Ch14: Analyzing IPv4 Subnets
    • Vol 1 Part 5: IP Routing
      • All Content Part 5
      • Ch15: Operating Routers
      • Ch16: Router Addresses and Routes
      • Ch17: Routing in LANs
      • Ch18: Troubleshooting Routing
    • Vol 1 Part 6: OSPF
      • All Content Part 6
      • Ch19: OSPF Concepts
      • Ch20: OSPF Config
      • Ch21: OSPF Network Types
    • Vol 1 Part 7: IPv6
      • All Content Part 7
      • Ch22: IPv6 Fundamentals
      • Ch23: IPv6 Addressing
      • Ch24: Configure IPv6 Addressing
      • Ch25: Configure IPv6 Routing
    • Vol 1 Part 8: Wireless
      • All Content Part 8
      • Ch26: WLAN Fundamentals
      • Ch27: WLAN Architectures
      • Ch28: Securing WLANs
      • Ch29: Building WLANs
  • CCNA Vol 2
    • Vol 2 Part 1: IP ACLs
      • All Content Pt. 1
      • Ch01: TCP/IP Transport
      • Ch02: Standard ACLs
      • Ch03: Extended ACLs
    • Vol 2 Part 2: Security Services
      • All Content Pt. 2
      • Ch04: Security Arch.
      • Ch05: Securing Devices
      • Ch06: Port Security
      • Ch07: DHCP
      • Ch08: DHCP Snooping & DAI
    • Vol 2, Part 3: IP Services
      • All Content Pt. 3
      • Ch09: Device Management Protocols
      • Ch10: NAT
      • Ch11: QoS
      • Ch12: Miscellaneous IP Services
    • Vol 2 Part 4: Architectures
      • All Content Pt. 4
      • Ch13: LAN Architecture
      • Ch14: WAN Architecture
      • Ch15: Cloud Architecture
    • Vol 2 Part 5: Automation
      • All Content Pt. 5
      • Ch16: Controller-Based Networks
      • Ch17: Cisco SDA
      • Ch18: REST and JSON
      • Ch19: Ansible, Puppet, Chef
  • Labs
    • Config Labs, Volume 1
      • All Labs, Volume 1
      • Part 2 – Ethernet
      • Part 3 – VLAN, STP
      • Part 5 – IP Routing
      • Part 6 – OSPF
      • Part 7 – IPv6
    • Config Labs, Volume 2
      • All Labs, Volume 2
      • Part 1 – IP ACLs
      • Part 2 – Security
      • Part 3 – IP Services
    • Free Play Labs
      • All Labs, Volume 1
      • All Labs, Volume 2
  • Q&A
    • Q&A Set #1
    • IPv4 Address Drills
    • IPv4 Mask Drills
    • IPv4 Design Drills
    • IPv4 Network Analysis
    • IPv4 VLSM
    • IPv4-Adv Summary Routes
    • IPv6 Address Drills
    • OSPF Enabler
    • STP vs RSTP
    • STP Puzzle
  • General
    • Career
    • News
    • Study Tips
  • Reference
    • Config Labs
    • Free Play Labs for CCNA
    • Final Review
    Discussions to build real CCNA skills
    • CCNA Vol 1
      • Vol 1 Part 1: Intro
        • All Content Part 1
        • Ch01: Intro to TCP/IP
        • Ch02: Intro to Ethernet
        • Ch03: Intro Routing, WAN
      • Vol 1 Part 2: Ethernet
        • All Content Part 2
        • Ch04: Command Line
        • Ch05: Ethernet Switching
        • Ch06: Switch Management
        • Ch07: Switch Interfaces
      • Vol 1 Part 3: VLANs, STP
        • All Content Part 3
        • Ch08: Virtual LANs
        • Ch09: Spanning Tree
        • Ch10: RSTP and EtherChannel
      • Vol 1 Pt 4: IP Addresses
        • All Content Part 4
        • Ch11: IPv4 Subnetting
        • Ch12: Classful IPv4 Networks
        • Ch13: IPv4 Subnet Masks
        • Ch14: Analyzing IPv4 Subnets
      • Vol 1 Part 5: IP Routing
        • All Content Part 5
        • Ch15: Operating Routers
        • Ch16: Router Addresses and Routes
        • Ch17: Routing in LANs
        • Ch18: Troubleshooting Routing
      • Vol 1 Part 6: OSPF
        • All Content Part 6
        • Ch19: OSPF Concepts
        • Ch20: OSPF Config
        • Ch21: OSPF Network Types
      • Vol 1 Part 7: IPv6
        • All Content Part 7
        • Ch22: IPv6 Fundamentals
        • Ch23: IPv6 Addressing
        • Ch24: Configure IPv6 Addressing
        • Ch25: Configure IPv6 Routing
      • Vol 1 Part 8: Wireless
        • All Content Part 8
        • Ch26: WLAN Fundamentals
        • Ch27: WLAN Architectures
        • Ch28: Securing WLANs
        • Ch29: Building WLANs
    • CCNA Vol 2
      • Vol 2 Part 1: IP ACLs
        • All Content Pt. 1
        • Ch01: TCP/IP Transport
        • Ch02: Standard ACLs
        • Ch03: Extended ACLs
      • Vol 2 Part 2: Security Services
        • All Content Pt. 2
        • Ch04: Security Arch.
        • Ch05: Securing Devices
        • Ch06: Port Security
        • Ch07: DHCP
        • Ch08: DHCP Snooping & DAI
      • Vol 2, Part 3: IP Services
        • All Content Pt. 3
        • Ch09: Device Management Protocols
        • Ch10: NAT
        • Ch11: QoS
        • Ch12: Miscellaneous IP Services
      • Vol 2 Part 4: Architectures
        • All Content Pt. 4
        • Ch13: LAN Architecture
        • Ch14: WAN Architecture
        • Ch15: Cloud Architecture
      • Vol 2 Part 5: Automation
        • All Content Pt. 5
        • Ch16: Controller-Based Networks
        • Ch17: Cisco SDA
        • Ch18: REST and JSON
        • Ch19: Ansible, Puppet, Chef
    • Labs
      • Mega Widget 4
      • Config Labs, Volume 1
        • All Labs, Volume 1
        • Part 2 – Ethernet
        • Part 3 – VLAN, STP
        • Part 5 – IP Routing
        • Part 6 – OSPF
        • Part 7 – IPv6
      • Config Labs, Volume 2
        • All Labs, Volume 2
        • Part 1 – IP ACLs
        • Part 2 – Security
        • Part 3 – IP Services
      • Free Play Labs
        • All Labs, Volume 1
        • All Labs, Volume 2
    • Q&A
      • Q&A Set #1
      • IPv4 Address Drills
      • IPv4 Mask Drills
      • IPv4 Design Drills
      • IPv4 Network Analysis
      • IPv4 VLSM
      • IPv4-Adv Summary Routes
      • IPv6 Address Drills
      • OSPF Enabler
      • STP vs RSTP
      • STP Puzzle
    • General
      • Career
      • News
      • Study Tips
    • Reference
      • Config Labs
      • Free Play Labs for CCNA
      • Final Review
    A: LAN Switching Logic
    By certskills
    In 200-301 V1 Ch05: Ethernet Switching, 200-301 V1 Part 2: Ethernet, CCENT-OLD, Q&A
    Posted August 31, 2015

    A: LAN Switching Logic

    It seems simple… and then you’re sitting at the #CCENT or #CCNA exam. Where does that Ethernet frame really go? I posted a question about LAN Switching a few days back. Here are the [...]

    READ MORE
    Q: LAN Switching Logic
    By certskills
    In 200-301 V1 Ch05: Ethernet Switching, 200-301 V1 Part 2: Ethernet, CCENT-OLD, Q&A
    Posted August 29, 2015

    Q: LAN Switching Logic

    To get your #CCENT and #CCNA, you must have the skill to predict how switches forward Ethernet frames. This skill goes beyond a simple generic list of actions like forward/filter/flood. This next [...]

    READ MORE
    Answers: Switch Forwarding and What Happens Next
    By certskills
    In 200-301 V1 Ch05: Ethernet Switching, 200-301 V1 Part 2: Ethernet, CCENT-OLD, Q&A
    Posted April 9, 2015

    Answers: Switch Forwarding and What Happens Next

    This post discusses the answers to the questions listed in the previous post. But what makes this question so challenging for someone headed for the ICND1 exam? Three things, in my opinion: 1) [...]

    READ MORE
    Switch Forwarding of Frame From Host to Gateway
    By certskills
    In 200-301 V1 Ch06: Switch Management, 200-301 V1 Part 2: Ethernet, CCENT-OLD, Q&A
    Posted May 16, 2014

    Switch Forwarding of Frame From Host to Gateway

    Sometimes #CCNA and #CCENT candidates struggle the first few times they have to apply layer 2 switching concepts and layer 3 routing concepts in the same question. That’s normal – [...]

    READ MORE
    Refine per Post Type

    • Home
    • Privacy Policy
    • Terms of Use
    • Disclaimer
    • Search
    © CertSkills Professional, LLC - Disclosure: If you click and spend money, we earn a small referral fee.