7.3 Flashcards
The – – – – layer or – – – – layer is a highly redundant mesh of connections between multi layer switches and routers. It provides routing within the corporate Netwerk as well as traffic filtering and the networks connection to one or more WAN such as a wan connection to your branch offices
Distribution lawyer or aggregation layer
– – – – Layer consist of highly efficient multi layer switches or routers that support the networks back on traffic typically no filtering or routing performed at the slayer so as to minimize the processing required of the switches
Core layer
The flow of traffic between Piers was a network segment is called
East west traffic
Messages that must leave the local segment to reach the destination called – – – – – – – –
North south traffic
The overall network design, the device is involved, how they are configured, the services implementing to support the net work, and the way devices are connected to the network, is all called networks – – –
Architecture
Spine switches on the backbone connect in a message to Paul G with all the switches and leave switches connect with servers and other host devices this is a main is called ————
Spine leaf architecture
While the switches are not necessarily position at the top of the rack the top location in in the rack often provides the best accessibility and Kayla hundred
TOR or top of rack switching
Where POR is a vertically oriented arrangement – – – is more horizontal in orientation. Instead of placing a switch at the top of the track you were switching places several Lee switches in a rack at the end of
Middle of road traffic
Eor switching
Thank Every leaf switch is connected to multiple spine switches in a full master policy which provides – – – – connections engage one leg feels
Redundant
He’s finally networking replace the older Everly STP with a newer pass management technologies such as Trail in S.P.B. this will result in
Increase performance
The number of available and usable pass for messages across the network improves scalability this means a network and support larger numbers of host devices without overwhelming network pathways This will will result in – I S
Improved scalability
Traffic at all liars can be more easily be inspected and monitoring list of traditional three layer hierarchy typically north south traffic will be filtered through her firewall as an entered the net work that however after that point traffic was considered trustworthy and rarely inspected. This will result in
Increased security
Surprisingly the hardware needed to build a spine and leaf architecture is typically less expensive than the switch is needed for a three tiered architecture This results in – – –
Reduced expense
This is a centralized approach to networking that removes most of the decision making power for network devices and instead handles that responsibility at a software level
STN or software define networking
When you give A device called an SDn controller a Birdseye view of an entire networks so we can make more —————-on how to direct messages through the network
Informed decision
