Well, now Jida full ventilation of the campus network, campus service is basically a crash. To take this time to talk about my experience on campus cafes.
I plan to guitar I have seen a large campus network is divided into so few times:
- The golden age of the Education Network
- The era of telecommunications network
- BT era
- Often ventilation times
Time and space disorder of the frog, the division above, some times there may be errors, expect someone to give me make up a specific time.
First to say about Kat structure of the campus network.
Guitar great many campuses, the campus with a dual fiber optic interconnection, each campus to use 7609 as a core, the use of optical fiber down to connect the various regions of 4006, then 4006 and then fiber optic connections to the region inside each floor, which is the so-called fiber to the building. then each floor of the main switches are basically 3500 Series, and then down to connect is to use twisted pair, first Gigabit connections to each engine room of the building, and then switch the engine room (probably a about the engine room) connected to a cascade switch in the engine room further down is to use the Fast line connecting the user's computer, this structure was virtually no change since my school began, and some core layer changed.
(Later this topology naturally changed, and is said to have canceled the 4006 level, the route is all to do on the core of the 7609, but the specific circumstances, the frogs do not know, you also need insiders to confirm.)Education Network golden age
This day and age, educational network should walk in front of the times, ADSL with the residential broadband because at that time far from now the popularity of the speed difference is now very far away, so I went so far as to have such a good education network proud.
That time had not so many p2p file exchange, and more ftp or http site, the school for a considerable number of ftp Union, video, animation, games have a special alliance, so all day hanging in the a ftp up and down some movies, games and most of these ftp all the speed limit, every ip in the 100k up and down even when still endure with an 8G hard, often down something, and quickly reading or comes to an end. then went on to later ftp Union mostly disappeared, as far as I know so far the only kung fu tea alliance G1 is still tireless contribution to the film.
Education Network northeast to Beijing's export ms or two 155M line, but go to the public online stuff was fast, but also remember that was the most original intention of doing that is to go PCHOME test your connection speed, can usually reach about 1M. Trip to Changchun a site to download a game, nearly 2G of the game, less than half an hour to download it back. this rate is still quite commendable.
Later, the schools within the education network Jida students, network computer, the bottleneck of the Education Network Northeast exports began to unravel, often to be quite a while to open the pages of a public network. It is said that when the Northeast schools has been with the Education Network to export bandwidth results added to the first four 155M, then add a 1G line, but quickly filled. have Jida the next era of the campus network to take advantage of the middle of the night to go NIC version check, change the telecommunication network is so caused due cernet Kyrgyzstan speed limit:
To 155M lines, only two of Shenyang, Changchun, most of which bandwidth use Jilin University, which led to the dissatisfaction of other colleges and universities, cernet speed limit of Jilin University, qualified in the 180M, resulting in exports of Jilin University is a serious shortage of bandwidth caused by teachers and students dissatisfaction.
(2) telecom era
When the network center application with the school. Come up with is said to be 10 million RMB, with China Telecom, rented 1kMB the bandwidth, so the golden era of guitar campus network.
Add a routing network center in the core, to educate the network connection went Education Network, go to the public network telecommunications exports NAT forwarding, so that the speed of both sides are quite good is this era of the late Education Network Northeast exports added to the 2.5G.
Direct public exports, the online game a large area of the popularity of Internet cafes near the school began to slump.
When China Telecom has just entered the Northeast market, the network is not perfect, often laying certain parts of the fiber broken, do not have a backup line, you have to exchange for Education Network using for a while. Time to get to feeling really crawling.
Of course, for a telecommunications line is not everyone was happy, because exports to the NAT, the public Internet ftp site could not login. Especially those who have their own space in the outside, a year or so can not ftp log in to your space, so these people often go to NIC version squalling.
Later, the network-centric China Telecom is not in accordance with contract full 1G of bandwidth, but to do the speed limit. First qualified in the 360M, increased to 400M. So the network center to quit, stop the cooperation with the NIC, all in exchange for the education network.
3.BT times
BT is which became popular, I'm not sure, it should be schools with telecommunications exports when there is a BT Jida began to spread open to all 5Q credit, at the beginning no one tube the BT, and later network The center found that most of the traffic in the telecommunications exports are bt occupied, began to find ways to block the BT.
Later, the school a few BT sites in the campus network with bt campus network bandwidth is sufficient, so bt Jida widely spread.
Most should be the beginning of the Micro, BT stand by the microcomputer enthusiasts Union (remember very much, it seems that the name) to initiate and maintain. The beginning of the Micro is very popular, coupled with the official support of the network-centric development is very rapid, at least around the students all know that such a Micro. Later, Micro internal problems (specifically frogs do not know), started to decline. Finally, the customs station trouble. Later some time to open some time, but then Ji Dayan child prevailed, finally just let the matter rest.
This Ji Dayan child, as long as the period of time (this time is estimated to be extended to the present) guitar students, and almost no people do not know. It is said that swallow most from Micro which points out the commercial support, so development is quite fast. The beginning, swallows clung to the idea of commercial sites, all to make money, feet are advertising page, bring it out the middle spots. Barren campus entertainment, the Swallow's contribution is very large. Frogs around the students, daily study hall back to the bedroom, the first thing on the Swallow to see. Some people even graduated, looking for video or games like will go swallow.
(4) often ventilation times
(Frog forget why had prepared to write such a period, because the ventilation is always run through the the Jida history of the campus network, so this day and age there is a starting point, but will not end.) 5 Supplementary
Frog after all, left school a long time, and senior meantime, the computer shipped home, do not continue to experience Kat networking opportunities. In accordance with the the Jida network rapid pace of development, it has also generated a lot of the times. Therefore, the frog hope you students can help the frog complement this blank 
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