Cisco CCNA Notes

VLAN Domains

VLAN is a layer 2 broadcast domain. two types of ports or links that exist on a switch. 1) access links 2) trunk links access link is any link on a switch  that carries or is part of one VLAN. [view]

By: Arham Zaman | Related Lesson: Layer 2 - VLAN Domains | Modified: June 22, 2016

osi

  [view]

By: n84062385 | Related Lesson: Open Systems Interconnect Model (OSI) Introduction | Modified: June 22, 2016

Layer 2 – Cisco IOS LAB (Part 2) OS Modes

-To go to the mode where most of the configuration input ”configure terminal”. This mode is called global configuration mode (config mode). -Any changes made to the router, the switch, or the CISCO device from global configuration mode wi [view]

By: swb54 | Related Lesson: Layer 2 - Cisco IOS LAB (Part 2) OS Modes | Modified: June 22, 2016

Data Link Layer

Data Link Layer-controls communications from one device to the next immediately connected device. [view]

By: dwill1122 | Related Lesson: Layer 2 - Data Link Layer Overview | Modified: June 23, 2016

VLAN

Crap watch again. [view]

By: Marcus.Flynn | Related Lesson: Layer 2 - VLAN Trunking Protocol | Modified: June 22, 2016

VLAN lab

VTP must be in the same domain or else they cant talk. show vtp status (operating mode, domain name, version 1 if vtp 2 mode disabled) Configuration revision How many changes to the vlan.dat file. Remember to delete something in ios… just put n [view]

By: Marcus.Flynn | Related Lesson: Layer 2 - VLAN Trunking Protocol LAB | Modified: June 22, 2016

Broadcast domains

Physical diagram is drawn with actual devices while a logical diagram has more hosts attached to a lines (represent your switches). All devices on a switch are all on the same data link. A switch is transparent bridge for hosts connected. Broadcast a [view]

By: Marcus.Flynn | Related Lesson: Layer 2 - Broadcast Domains | Modified: June 22, 2016

Open Systems Interconnect Model (OSI Layered Model)

Open Systems Interconnection Model is a set of rules that are globally used that allow foreign networks to easily communicate with each other.  OSI MODEL has 7 layers  1. Physical Layer 2. Data Link Layer 3. Network Layer 4. Transport Layer  5. Se [view]

By: teddyhinson | Related Lesson: Open Systems Interconnect Model (OSI) Introduction | Modified: June 22, 2016

OSI Model Layers

Physical Layer 1.Cable-X(speed), base(base band signaling), T(twisted pair), distance 100 meters Straight Thru- unlike devices                 Crossover- like devices Shielded Twisted Pair(near electric devices), Unshielded Twisted Pair, Seri [view]

By: dwill1122 | Related Lesson: Layer 1 - Physical Layer | Modified: June 22, 2016

Layer 2 – Cisco IOS LAB (Part 1)

-There are three types of memories that a CISCO router has: 1.RAM or Random Access Memory. RAM holds what is called the running configuration or the current configuration as it exists on the router or the switch. RAM is volatile which means a RAM wil [view]

By: swb54 | Related Lesson: Layer 2 - Cisco IOS LAB (Part 1) | Modified: June 22, 2016

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