It the second we're going to take over to the quality of service less of the basics of the.
Curious is industry wide set of standards and mechanisms for ensuring high quality performance for critical
applications.
Q As has the ability to provide different prices for different applications users or data flows or to
guarantee a certain level of performance to data flow.
Some traffic flows are important for the companies and needs to be prioritized.
If the benefit demand exceeds the available amount terrific congestions killers and may result with
the loss or delay of the critical data we can manage core network characteristics by Cure's and they
are bandwidth which is the rate at which traffic is carried by the network latency which is the delay
in data transmission from source the destination jitter which use the word creation in latency and reliability
which is the person page of packet's discarded by air rather let's go ahead with the terrific types
worse traffic is sensitive for delays and drop's and there is no real transmission.
If the packet is lost because worst traffic is usually the best worst traffic is also smooched which
means Flo's at the.
And does not burst and Beland which means it is not greedy for lots of bandwidth fairly low per call.
Let's go over the air traffic radio traffic is sensitive for delays drops and there is no real transmission.
If the packet is lost because it is UDP based We are traffic is bursty which means part of picture moves
with the Istalif on screen cause of keyframes and greedy which means more Berit you define better the
picture quality is little traffic is sensitive for delays and drop's and may be small to bursty or many
more greedy that.
Effect is TZP based and can be transmitted instead of through oping traffic rudders and switch to Perkasie
into an output queue and all new packets go through the queuing system.
The mail for curing algorithms are fearful that if you see either of you or if you and the et al Q frivol
is the first in first out the traffic reports form the interface as it arrives and there is no traffic
points in Q4 as you can see here we have the red Packards and we have the great packet and are the workspace
in here and the word Pickle's is coming for to the DeWyze and it is also leaving for us from the U.S.
Forest in first out.
Let's go out to Darby with you.
Midge's mean Winterfield puring WFIU schedules Internet traffic to the front of the queue to reduce
response response time and issues the remaining bandwidth.
But when high bandwidth flows lets go with me declasse best.
Wait wait wait.
Q AInc.
CB That is to extend the standard WFIU functionality to provide support for user defined traffic classes.
A queue is reserved for each class and traffic belonging to a class is direct to the queue for that
class.
Let's grab the L-L Q LTE low latency queuing brings street priority queuing to the class base where
we're queued.
A low key ellos DeLay says through that such as Moyes to be given preferential treatment over others
it by letting them do that to me they queued and then send first let's go ahead with the curus mechanisms
Cure's technologies that are used to provide improved network service to the applications at the edge
of the network and they are our best effort.
Integrated services and the differentiated services Indes of a technology network does not bode any
guarantees that data is delivered.
Users Opt-In unspecified were idled betrayed and they are over words and depending on the current traffic
loads Let's go ahead with the integrated services integrated services poor.
A way to deal with the cures that real time applications Richar by explicitly managing network resources
to provide cures to specific user Paykel streams and integrate health services.
Use the resource research issue.
Port of call R.S.V.P. to the signal the cueist needs of an application traffic along the way says you
and to pass through the network which squares with differentiated services differentiated services are
an architecture that space was as simple scalable and corkscrewing macaronis for classifying and managing
network traffic and poor wording to us packet's class can be marked directly in the packet.
And because of that there is no need for our SBP this technology ECU's better cures Killaloe the world
is so poor at titre cures mechanism for real time traffic cures technology referred to the set of tools
and techniques to manage network resources and the tools tools.
Cl. market pools.
Congestion avoidance tools and congestion management tools in classification are marking through if
it is analyzed to discover that which class it belongs to and pickets our marks or after the discovery
process classification of the traffic is made via a sales or class maps marking.
There were terrific ellos to set or modified the attributes for a specific class of traffic lately or
later to Lesko never too late to marking live to marking is implemented where Terebinth poor to quote
Point Field which identifies class of service markings in TCI field of internet header is France are
marked with eight levels of Porterville is as you can see anywhere and for example if you mark it in
a frame with 5 that means that Savoy's through a very if you marked with three.
That means there's a call signal.
If you mark with one that moves a million Pirtle data and for example if you mark with zero that means
that the best effort data.
And let's go over to the trademarking layer trademarking is implemented y 8 bit type also was field
or type of class field for I-26 in IP header inducers model Pecorella is marked using divs so of to
point B as c p bits which are the six methods.
For example if you are marking the packet with Sellon that means it's the network traffic.
If you're Mark Perker with two flies that means that security critical packet.
Or as you can see on the table the other Merkin types too unearthly were going to take a little traffic
shaping in Paul wise seer troughing Poisson means when the traffic rate reaches reconfigured maximum
rate excess traffic is drop to or impact and traffic shaping retains the excess packets in a queue and
then schedules the exits for later transmission over increments of time.