فاز نخست یا فاز اولیه هم میتونه باشهgrounding phase
فاز نخست یا فاز اولیه هم میتونه باشهgrounding phase
نه، مگه پی ریزی واسه ساختمونه فقط؟! : دی
آره! این از لحاظ منطقی درسته ...
اما مشکل اینجاست که تو متن من، خیلی مرحلهی اولیه نیست !!
یعنی وسطای پروژه است ! : دی
نه، گفتم شاید میخوای ربطش بدی به ساختمون![]()
ترجمه اين چي ميشه؟
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درسته بعضی علوم به هم ربط دارن، اما نه دیگه در این حد !
از عنوانش معلومه که به ساختمون ربطی نداره : دی
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خیلی ممنون.کد:برای مشاهده محتوا ، لطفا وارد شوید یا ثبت نام کنید
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زحمت این متن رو هم میکشید تو صفحات قبل بود
Welcome. This is chapter 9 of the Routing Protocols and Concepts course. This is EIGRP or Enhanced Interior Gateway Routing Protocol. EIGRP is an advanced distance-vector classless routing protocol. Much different from Route version 2. As its name suggests EIGRP is an Enhancement of CISCO IGRP (Interior Gateway Routing Protocol). Both are CISCO proprietary protocols on only operate on CISCO routers.
You'll recall that RIP version 2 uses only hop count as a metric. EIGRP on the other hand has a more complicated metric. It uses minimum bandwidth, delay, reliability and load. And of these 4 metrics by default, only the bandwidth and delay are used to compute the best path. The value of the bandwidth may or may not reflect the actual physical bandwidth of the interface. This is something that a network engineer can change but realize that modifying the bandwidth value does not change the actual bandwidth of the link. Delay is a measure of the time it takes for a packet to traverse a route. Reliability is a measure of the probability that the link will fail or how often the link has experienced errors. And load reflects the amount of traffic utilizing the link. One of the important topics in this chapter is the convergence algorithm used by EIGRP. Instead of using the Bellman-Ford algorithm, like other distance-vector routing protocols, EIGRP uses the Diffusing Update Algorithm or DUAL which allows fast, loop-free convergence times to route a route computation in all routers involved in a topology change at the same time. Students should be aware of DUAL's topology table, and how DUAL maintains a list of back-up routes it has already determined to be loop-free. If the primary route in the routing table fails, the best back-up route is immediately added to the routing table.
This chapter contains many concepts. And you will practice the commands necessary to configure and troubleshoot EIGRP on your lab topology. Plan extra time for the labs in this chapter in order to practice all the commands associated with EIGRP. It will allow you to see the precise control gained through manual summarization, the reduced convergence time as compared to RIP and how EIGRP can scale to very large internetworks. Good luck as you move forward
من متنش رو نوشتم... دیگه امشب حوصلهی ترجمه ندارم... زحمت ترجمهاش با دوستان... اگه نشد خودم فردا شاید گذاشتم...
ویرایش: متنش یه سری غلط داشت اصلاح کردم...
Last edited by pro_translator; 26-05-2011 at 18:40.
سلام به همه دوستان !
من باید یه فیلم در مورد شبکه رو دوبله به فارسی کنم که حدود 6 دقیقه هست و در مورد شبکه است
حالا باکمک نرم افزار و .. تونستم صدای انگلیسی رو به متن تبدیل کنم و حدود 2 صفحه شد
دوستان اگه میتونن اینو ترجمه کنن اگر هم خواستین یه قیمت خوب بگین که برای شما هم سود داشته باشه
فقط من بدجور لنگم. واینو تا فردا ظهر میخوام
واقعا ممنون میشم یکی کمک کنه!
Frame relay has become the most widely used when technology in the world therefore network engineers need to be prepared to deploy and troubleshoot the protocol this video explains the basic concepts of this high-performance WAN protocol
large enterprises government ISPs and small businesses use frame-relay primarily because of its price inflexibility as organizations grow and depend more and more unreliable data transport traditional leased line solutions become prohibitively expensive frame-relay reduces network cost because equipment requirements are low it is not complex it is easy to implement moreover frame-relay provides greater bandwidth reliability and resiliency than private or leased lines with increasing globalization and the growth of one to many branch office to apologies frame-relay offer simpler network architecture and lower cost of ownership as a data link protocol frame-relay provides access to a network limits and delivers frames in proper order and recognizes transmission errors through standard cyclic redundancy check frame-relay can also provide multiple logical connections over single physical circuit allows the network to route data over those connections to its intended destinations when carriers use frame-relay to interconnect LANs a router on each land is the DTE serial connection such as the T1 E1 leased line connects the router to the frame-relay switch of the carrier at the carriers nearest point of presence or PO P frame-relay switches the DCE device network switches move frames from one DTE across the network and deliver frames to other DTE's by way of the DCE's the connection through a frame-relay network between two DTE's is called a virtual circuit or BC circuits are virtual because there is no direct electrical connection from end-to-end instead the connection is logical with virtual circuits frame-relay shares the bandwidth among multiple users at any site can communicate with any other site without using multiple dedicated physical lines in this video there is a BC between the sending and receiving notes the BC follows the path ABC in the frame-relay creates a BC by storing input ports output port mapping in the memory of each switch and thus links one switch to another italic continuous path from one end of the circuit to the other is identified a BC can pass through any number of intermediate switch is located within the frame-relay network the question you may ask at this point is how are the various notes and switches identified Theseus provide a bidirectional communication path from one device to another their identified by datalink connection identifiers or DLC eyes deal CI values typically are assigned by the frame-relay service provider for example the telephone company and have local significance which means that the values themselves are not unique in the frame-relay WAN a deal CI identifies a BC tube equipment that an endpoint and has no significance beyond that single link to devices connected by VC may use a different deal CI value to refer to the same connection locally significant DLC eyes have become the primary method of addressing because the same address can be used in several different locations while still referring to different connections local addressing prevents a customer from running out of DLC eyes as the network grows this is the same network presented in the previous figure but this time is the free moves across the network frame-relay labels HVC with the deal CI the deal CI is stored in the address field of every frame transmitted to tell the network how the frame should be routed in this example the frame uses deal CI 102 believes the router using port zero NVC 102 at switch a the frame exit port one using BC 432 this process of BC port mapping continues through the WAN until the frame reaches its destination at deal CI 2016 frame-relay is a layer 2 protocol it needs a mechanism for mapping to a layer 3 address frame-relay has two methods dynamic mapping which relies on inverse art and static mapping the inverse address resolution protocol or inverse art obtains layer 3 addresses of other stations from layer to deal CI where is our results layer 3 addresses to layer 2 addresses inverse art does the opposite router builds and maintains this mapping table which contains all resolved inverse art requests including both an amicus static mapping entries on Cisco routers inverse art is enabled by default for all protocols enabled on the physical interface the network administrator can choose to override dynamic inverse art mapping by supply and Emmanuel static mapping for the next top protocol address to a local deal CI an example of using static address mapping is a situation in which the router at the other side of the frame-relay network does not support dynamic inverse art in this example static address mapping is performed on interface serial 000 and the frame-relay encapsulation used on deal CI 102 is Cisco as seen in the configuration steps static mapping of the address using the frame-relay map command allows users to select the type of frame-relay encapsulation used on a per BC basis static mapping configuration should be studied and practiced more detail after viewing this video another concept network engineers need to understand his local management interface or LMI the LMI is a keep alive mechanism that provides status information about frame-relay connections between the router or DTE and the frame-relay switch or DCE notice the amount of information available via the LMI this video supplied an overview of the basic frame-relay concepts as with most networking protocols there are many more concepts and details the learning configurations to practice since frame-relay is the most used when technology in the world network engineers must have a solid grasp of this protocol
دوستان اگه ممکنه این چند تا جمله رو برام معنی کنید:
1) آتش/شعله/ مشعل خاموش شد.
2) مشعل خاموش شده؟ یا نه روشنه؟
3) مشعل/شعله روشن شده.
4) داری برعکس میگش!
5) برعکسش رو متوجه شدی.
6) میخوان شعله رو خاموش / روشن کنند؟ از نظر شما مشکلی نداره؟
7)اگه ما این دکمه رو فشار بدیم و یا فشار رو کم کنیم آیا مشعل متوقف نمیشه؟
8) فکر میکنم یه چیزی توی لوله گیر کرده باشه.
9)فکر میکنی آیا این تفاوتی میکنه/ داره اگه ما به جای بالا بردن فشار دما رو افزایش بدیم؟
10) با بالا رفتن فشار دما هم بالا میره.
11) آب/برق قطعه.
12) آیا آب/برق قطعه؟
13) آب / برق اومد.
دوستان عزیزم ببخشید جمله ها زیاد شدن چاره ای نداشتم.
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