Cisco CCNA Notes

MAC table lab

Fa0/24= fast ethernet port 24 Dynamic means the address was auto learned from flooding protocols MAC address’ are burnt into the network interface card(via laser) [view]

By: spencerti1997 | Related Lesson: Layer 2 - MAC Address Table LAB | Modified: March 26, 2018

Broadcast Domains

Broadcast Domain Area of a network where a broadcast will spread out to if sent by one device all cisco switches are 1 broadcast domain by default routers break up broadcast domain broadcast will not go across a router Collision Domain Areas [view]

By: jlp06f | Related Lesson: Layer 2 - Broadcast Domains | Modified: March 26, 2018

Protocol Data Unit (PDU)

DATA frame (this is a sequence) destination MAC address source MAC address  DATA Frame Check Sequence(FCS) (CRC) cyclic redundancy check Operation of a switch (Switch table sorta)MAC address table contains a listing of all address ports/MAC address [view]

By: spencerti1997 | Related Lesson: Layer 2 - Mac Addresses | Modified: March 26, 2018

layer 2 (data link overview)

thunderbolt symbol=serial connection layer 1 electrical frequencies/ voltages PDU protocol data unit Layer 2 data frame source address (sender) sent too destination address media access control address 48 bit length written in hexidecimal./hex number [view]

By: spencerti1997 | Related Lesson: Layer 2 - Data Link Layer Overview | Modified: March 26, 2018

MAC Address Command

on Switch # show mac address-table dynamic = auto learned on router to see MAC, got to # show interfaces fx/x [view]

By: jlp06f | Related Lesson: Layer 2 - MAC Address Table LAB | Modified: March 26, 2018

Layer 2 Cont.

Frame  Destination MAC|Source MAC|Data|FCS/CRC Devices on Layer 2 Switch MAC address table listing of all ports on switch learns by looking at source MAC field of frame make forwarding decision based on dest MAC  switch will flood all ports exce [view]

By: jlp06f | Related Lesson: Layer 2 - Mac Addresses | Modified: March 26, 2018

Show interface

MTU max for fast ethernet is 1500 bytes MTU- layer 3-maximum packet size [view]

By: feelnu | Related Lesson: Layer 2 - Configure VLAN LAB | Modified: March 26, 2018

VLAN

1, 1002 – 1005 – Default  VLAN they cannot be deleted. by default, all port on a switch belongs to port 1. ( are called normal range vlan) 1006 – 4094 – Extended range VLAN [view]

By: HasanNawaz Shaikh | Related Lesson: Layer 2 - Virtual Local Area Connections | Modified: March 28, 2018

network Lear

Open Systems Interconnect Model (OSI) Introduction Welcome to the free Cybrary online course for the Cisco Certified Network Administration (CCNA) professional certification. This introductory lesson will help you fully understand the concepts of Ci [view]

By: santanupradhan | Related Lesson: Open Systems Interconnect Model (OSI) Introduction | Modified: March 26, 2018

Data Link Layer

PDU-Protocol Data Unit is called a frame MAC-Media Access Control 48位元組成,前24bit為OUI Field(Organizationally Unique Identifier) OUI無法變更,由供應商提供。後24bit由廠商編號 MAC Address的第7個bit為UL bit(Universal Loc [view]

By: darrenh | Related Lesson: Layer 2 - Data Link Layer Overview | Modified: March 26, 2018

« First ‹ Previous 1 91 99 100 101 102 103 111 201 2500 Next › Last »

Our Revolution

We believe Cyber Security training should accessible for everyone, everywhere. Everyone deserves the OPPORTUNITY to learn, begin and grow a career in this fascinating field. Therefore, Cybrary is the world's largest community where people, companies and training come together to give everyone the ability to collaborate in an open source way that is revolutionizing the cyber security educational experience.

We recommend always using caution when following any link

Are you sure you want to continue?

Continue
Cancel