Cisco CCNA Notes

Cisco Commands

RAM – running configuration – it is volitile NV RAM  – Non volatile RAM Flash Memory – Internet operating system (IOS) [view]

By: Michael Chrusciel | Related Lesson: Layer 2 - Cisco IOS LAB (Part 1) | Modified: March 31, 2018

Physical Layer

There are 3 devices that work Only at the Physical Layer: Cables Hubs and Repeater Cables (UTP, STP)X-Base-T Base Band Signaling (One Signal on the wire)Broad Band Signaling (Many Signals) # of Twists per Ethernet CategoryCat 3 < Cat 5 < Cat 5e [view]

By: hgil | Related Lesson: Layer 1 - Physical Layer | Modified: April 1, 2018

VLAN

VLAN – Virtual Local Area Network, virtual switch in the same physical switch VLAN 1, 1002, 1003, 1004, 1005 are called normal range VLANs and default VLANs on a switch VLAN 1006 – 4094 are extended range VLANs By default all ports on a s [view]

By: Michael Chrusciel | Related Lesson: Layer 2 - Virtual Local Area Connections | Modified: March 24, 2018

Open System Interconnect

Open System Interconnect OSI Layers 1. Physical                    P 2. Data Link             D 3. Network               N 4. Transport            T 5. Session                     S 6. Presentation        [view]

By: hgil | Related Lesson: Open Systems Interconnect Model (OSI) Introduction | Modified: March 24, 2018

Dynamic Routing

1. Types of Dynamic Routing Protocol    – Distance Vector Routing Protocol    – Link State Routing Protocol 2. RIP(Route Information Protocol) is a type of Distance Vector Protocol. 3. Features of Distance Vector Routing Protocol   [view]

By: kumaramrit | Related Lesson: Layer 3 - Dynamic Routing | Modified: March 25, 2018

CCNA - Layer 2: CISCO IOS Lab (Part 1)

Layer 2: CISCO IOS Lab (Part 1) 3 types of memory on CISCO router random access memory (RAM) – holds running configuration which is config currently configured on device; this is volatile and will be deleted if device is power cycled NVRAM (no [view]

By: dwatts8286 | Related Lesson: Layer 2 - Cisco IOS LAB (Part 1) | Modified: March 24, 2018

CCNA - Layer 2: VLAN Configuration Lab

VLANs on a switch are stored in flash memory in a file called vlan.dat sh flash and you will see vlan.dat can you delete all vlans on a switch by deleting vlan.data? YES switch# delete flash:vlan.dat instead use, switch# delete vlan.dat so you don&# [view]

By: dwatts8286 | Related Lesson: Layer 2 - VLAN Configuration LAB | Modified: March 24, 2018

CCNA - Layer 2: VLANs

Layer 2: VLANs (Virtual Local Area Networks) – virtual switches inside the physical switch vlans can traverse switches which eliminates the distance constraint creates virtual switches within a switch ~ logically separating switch into VLANs [view]

By: dwatts8286 | Related Lesson: Layer 2 - Virtual Local Area Connections | Modified: March 24, 2018

CCNA: layer 2- broadcast domains

Layer 2: Broadcast Domains a switch is one data link.  all devices connected are on 1 data link.  hence transparent bridging.  this is the logical topology. Broadcast and Collision domains broadcast domain – area of a network where a broadca [view]

By: dwatts8286 | Related Lesson: Layer 2 - Broadcast Domains | Modified: March 24, 2018

CCNA: layer 2 - mac addressesCCNA: layer 2 - mac address table lab

Layer 2: Mac Address Table Lab Using Cisco Packet Tracer bia (burnt in address); saw on router when doing show interface command [view]

By: dwatts8286 | Related Lesson: Layer 2 - MAC Address Table LAB | Modified: March 24, 2018

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