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Bo co thc tp: Kho st v tm hiu tnh trang mng wifi ca trng C CNTT

GVHD:ThS. Trn nh Sn

MC LCI. Gii thiu v trng Cao ng Cng ngh Thng tin - i hc Nng:......................4 1. S lc v trng Cao ng Cng ngh Thng tin:....................................................4 2. Chc nng v Nhim v:.............................................................................................4 3. C cu t chc:............................................................................................................5 4. Cc loi hnh o to:.................................................................................................5 II. Nhn xt v mi trng lm vic v hot ng chuyn ngnh:......................................6 1. Mi trng lm vic:...................................................................................................6 2. Hot ng chuyn ngnh:............................................................................................6 III. Ni dung thc tp:.........................................................................................................7 1. Tm hiu v kho st hin trng mng wifi ca trng Cao ng Cng ngh Thng tin:....................................................................................................................................7 a. Yu cu t ra:.........................................................................................................7 b. Cc cng vic cn lm:............................................................................................7 Ad Hoc..............................................................................................................11 Infrastructure.......................................................................................................12 Roaming...............................................................................................................13 2. Tm hiu s thit k mng ca trng:.................................................................15 a. S thit k h thng mng khu hnh chnh trng Cao ng Cng ngh thng tin:..............................................................................................................................15 b. V 2 khu cn li:....................................................................................................16 IV. Kt lun:.......................................................................................................................16 1. Nhng ni dung l thuyt c cng c:...................................................................16 2. Nhng k nng thc hnh hc hi c v kinh nghim tch ly sau khi thc tp ti trng:.......................................................................................................................16 3. Chi tit cc kt qu cng vic ng gp cho c quan ni thc tp:......................16 V. Nhn xt ca cn b hng dn:...................................................................................16

SV thc hin:Trn Ton Trn Cng Vit

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LI CM NEm xin cm n trng Cao ng Cng ngh thng tin- ai hc Nng to iu kin tt cho em thc hin ti bo co tt nghip ny. Em xin by t lng bit n chn thnh nht n thy Trn nh Sn, thy tn tm hng dn, ch bo, gip em trong sut qu trnh thi gian thc hin ti. Em cng xin chn thnh cm n qu Thy C trong Cng Ngh Thng Tin, tn tnh ging, trang b cho em nhng kin thc qu bo trong nhng nm hc va qua. Mc d rt c gng hon thnh bo co tt nghip trong thi gian cho php, song do kh nng cn hn ch, c s vt cht cn thiu nn chc chn khng trnh khi nhng thiu st. Em knh mong nhn c s thng cm v tn tnh ch bo ca qu Thy C v cc bn. Sinh vin thc hin Trn Ton Trn Cng Vit


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Nhn xt ca gio vin hng dnLch lm vic Tun 1 Kho st v tm hiu s mng ca trng Nhn xt Ghi ch

Tun 2 Tm hiu cc thng tin lin quan ti mng

Tun 3 Kim tra tnh trng mng, a ra nhn xt.

Tun 4 Vit bo co thc tp


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BO CO THC TP TT NGHIPTM HIU V KHO ST TNH TRNG MNG WIFI CA TRNG CAO NG CNG NGH THNG TIN

I. Gii thiu v trng Cao ng Cng ngh Thng tin i hc Nng:1. S lc v trng Cao ng Cng ngh Thng tin:Trng Cao ng Cng ngh Thng tin l trng thnh vin ca i hc Nng, c nhim v o to ngun nhn lc cng ngh thng tin cht lng cao gp phn tch cc vo s pht trin ca nn cng nghip cng ngh thng tin Vit Nam, ng thi tin hnh nghin cu khoa hc v chuyn giao cng ngh thng tin tin tin, t bit l hng vo cc ng dng nhm gp phn y mnh s nghip cng nghip ho, hin i ho t nc.

2. Chc nng v Nhim v:o to, bi dng ngun nhn lc c trnh cao ng v cc trnh thp hn thuc lnh vc cng ngh thng tin, k ton tin v cc lnh vc lin quan; Nghin cu khoa hc v trin khai chuyn giao cng ngh phc v yu cu pht trin kinh t - x hi ca c nc ni v khu vc min Trung Ty Nguyn ni ring; Hp tc vi cc c s o to v nghin cu trong nc v ngoi nc o to ngun nhn lc c trnh cao, cht lng cao.


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3. C cu t chc:

Ban Gim Hiu TS. Trn Tn Vinh(Hiu trng) PGS.TS Phm Vn Hai(Ph hiu trng)

Phng Hnh chnh Tng hp Phan Vn Minh(Trng phng, Ch tch Cng on)

Phng o to Cng tc Sinh vin ThS. Trn nh Sn (Trng Phng) KS. Nguyn Vn Bnh(Ph trng phng)

T ti v Hng Th Thu(Ph trch k ton)

on TNCS H Ch Minh inh Th M Hnh(B th) Trn Th M Chu(Ph b th)

4.

Cc loi hnh o to:Cao ng h chnh quy (3 nm)

Ngnh Cng ngh thng tin(C90)

Ngnh Cng ngh phn mm(C91)

Ngnh Cng ngh mng v truyn thng(C92)

Ngnh K ton tin hc(C93)

Ngnh Thng mi in t(C94)

Ngnh in t vin thng(C95)


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Cao ng chnh quy loi hnh lin thng t trung cp(1,5 nm)

Ngnh Cng ngh thng tin(C90)

Ngnh Cng ngh phn mm(C91)

Ngnh Cng ngh mng v truyn thng(C92)

Ngnh K ton tin hc(C93)

Cc ngnh o to khc

Bi dng k ton trng

o to nhn lc cng ngh theo tiu chun Nht Bn

Cc Kho o to bi dng ngn hn

II. Nhn xt v mi trng lm vic v hot ng chuyn ngnh:1. Mi trng lm vic:L sinh vin trng Cao ng Cng ngh thng tin, gn 3 nm hc tp v sinh hot ti trng. V khi thc tp ti trng nhm chng em lun cm thy mi trng lm vic trong trng tht thn thin, thy c nhit tnh ch dn, dy bo khi chng em c vng mc hoc kh khn trong cc vn thc tp. Gip chng em hiu r hn v trng v nhng g mnh ang cn thiu cn phi trau di, hc hi thm.

2. Hot ng chuyn ngnh:Ti trng, nhm chng em c i su tm hiu vo ngnh mnh hc, b sung nhng kin thc cn thiu. V hn na bit c cch thc lm vic sau ny ra i lm khng cn phi b ng.


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III.Ni dung thc tp:1. Tm hiu v kho st hin trng mng wifi ca trng Cao ng Cng ngh Thng tin:a. Yu cu t ra: Kho st iu kin a l, v tr lp t ca cc thit b trong cc phng ca trng, ng dy kt ni mng, kim tra tnh trng mng trong trng. b. Cc cng vic cn lm:

i) Kho st iu kin vt l:S mt bng:


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.Hnh 1 . S mt bng khu hnh chnh(visio 2003)


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.Hnh 2. S mt bng khu phng my(visio 2003)

ii) Kho st cc thit b trong cc phng ca trng, dy mng dng kt ni:Phng o to v Cng Tc sinh vin: gm 6 my tnh PC, 1 my In. Phng Hnh chnh Tng hp: gm 4 my tnh PC, 1 Switch 24 cng, 1 wireless. Phng Ti v: gm 2 my tnh PC. Phng ph Hiu trng: 1 my tnh PC. Phng Hiu trng: gm 1 my tnh PC, 1 wireless. Phng Trng b mn K ton: 1 my tnh PC. Phng b mn K ton: gm 3 my tnh PC , 1 my In, 1 my Scan. Phng Trng b mn Tin hc: 1 my tnh PC.SV thc hin:Trn Ton Trn Cng Vit

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Phng B mn Tin hc: 3 my tnh PC, 1 my In, 1 my Scan. Phng Sever: gm 1 my sever, 1 my web sever, 1 my mail sever, 1 wireless, modem kt ni internet, 2 switch 16 cng ,1 switch 24 cng. Phng my thc hnh: mi phng my gm 24 my tnh PC, 1 switch 24 cng.

iii) Kim tra tnh trng mng wifi trong trng:Mng Wifi: gm cc tn cit free01, cit phng hp, cit48, mng bghcit mng on trng CIT. Mng hot ng tt. Tuy nhin, vn cha p ng c yu cu do c nhiu thi im lt truy cp tng t ngt nn khng kt ni c. khu phng hc: Tng 1: c 3 mng l cit phng hp, mng cit 48, mng sinh vin. trong cit phng hp c sng rt tt vi tc 29Mbps. Trong khi mng sinh vin khng n nh rt hay b rt. Tng 2: c 4 mng l sinh vin, on trng CIT, bghCIT, CIT phng hp. trong c mng on truong v mang bgh CIT l tng i mnh. Cn mng CIT phng hp i khi b rt. Tng 3: c 4 mng l sinh vin, on trng CIT, bghCIT, CIT48. y tt c mng u chy nh hn, nhng sng nhn c vn cha mnh. Tng 4: c 2 mng l mng sinh vin v mng on trng CIT. 2 mng nay tng i nh xong sng nhn c khng c mnh. Tng 5: c 4 mng wifi chnh l sinh vien, doan truong cit, cit 48 v CIT free. Trong cit 48 v CIT free khng c n nh. Cn mng sinh vin v mng on trng th c mt khu. Tt c sng ca cc mng ny u khng c mnh. khu hnh chnh: Tng 1: c 5 mng l cit free01, cit phng hp, cit48, mng bghcit mng on trng CIT. Trong c mang cit phng hp l chy nh nht. cn mng bghcit sng yu. cn li cc mng khc lc nhn c lc khng. Tng 2: c 5 mng l free01, cit phng hp, cit48, mng bghcit, Mng on trng. tt c cc mng u chy n inh. Trong c cit phng hp v bghcit c sng rt khe v chy tng i tt. Tng 3: 5 mng l cit free01, cit phng hp, cit48, mng bghcit mng on trng tt c u n nh. khu phng my


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Tng 4: c 4 mng free01, cit phng hp, cit48, mng on trng. tt c u chy n. c mang free01 chay mnh nht vi 6mbps. Tt c sng u hi yu. Tng 3: c 4 mng free01, cit phng hp, cit48, mng bghcit. Trong c mng bghcit la khng nh lc nhn c lc khng. Cc sng u yu. Tng 2: c 4 mng free01, cit phng hp, cit48, mng bghcit. Trong c mng bghcit la khng nh lc nhn c lc khng. Cc sng u yu Tng 1: c 4 mng l cit phng hp, cit48, mng bghcit. Trong c cit 4 l bt nh hay b rt.

iv) Kin thc v mng:Khc vi Bluetooth ch kt ni tc 1Mb/s, tm hot ng ngn di 10 mt, WiFi cng l mt cng ngh kt ni khng dy nhng c tm hot ng v tc truyn d liu cao hn hn. iu cho php bn c th duyt web, nhn email bng my tnh xch tay, in thoi di ng, PDA hay thit b cm tay khc ti nhng ni cng cng mt cch d dng. WiFi vit tt ca Wireless Fidelity, l cng ngh mng khng dy s dng sng v tuyn (sng radio) v c nhng c tnh sau: Tc Chun WiFi IEEE 802.11a IEEE 802.11b IEEE 802.11g Tn s (GHz) 5 2.4 2.4 (Mbps ) 54 11 54 Khong cch (m) 12m - 54Mbps 90m - 6Mbps 30m - 11Mbps 90m - 1Mbps 15m - 54Mbps 45m - 11Mbps khai trong nhng iu kin v

Mng khng dy thng c trin mi trng sau:

+ Mi trng a hnh phcc tp khng th i dy c nh i ni, hi o, + Ta nh khng th i dy mng hoc ngi dng thng xuyn di ng nh: nh hng, khch sn, bnh vin, Nhng ni phc v Internet cng cng nh: nh ga, sn bay, qun caf,

v) M hnh mng:Ad HocSV thc hin:Trn Ton Trn Cng Vit

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Ad Hoc wireless LAN l mt nhm my tnh, mi my trang b mt wireless card, chng ni kt vi nhau to thnh mt mng LAN khng dy c lp. Nhng my tnh trong cng mt Ad Hoc wireless LAN phi c cu hnh dng chung mt knh truyn (channel) v cng SSID (Service Set ID).

M hnh mng ny thng dng trong mt tng lu ca mt cng ty hoc gia nh. M hnh mng ny l m hnh nhng my tnh lin lc trc tip vi nhau khng thng qua Access Point do tit kim nhng hn ch s lng my trm.

Infrastructure Mt m hnh kt hp gia mng LAN khng dy v c dy gi l Infrastructure. M hnh ny gm mt nhm nhng my tnh dng wireless card v Access Point c BSS (Bassic Service Set). Mi my tnh trong mt BSS c th truy xut n bt k my tnh no trong mng c dy v khng dy thng qua Access Point.


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Trong trng hp h thng mng chng ta c nhiu BSS. Chng ta dng s SSID duy nht cho mi BSS v nhng my trm dng wireless card mun truy cp vo BSS no th phi cu hnh SSID ph hp. Roaming M hnh Infrastructure cng h tr kh nng roaming cho nhng ngi di ng. Nhiu hn mt BSS c th c cu hnh thnh mt ESS (Extended Services Set). Nhng Wireless card ca my tnh v Access Point trong cng mt ESS th phi c cu hnh cng mt ESSID v dng chung mt knh truyn (channel).


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2. Tm hiu s thit k mng ca trng:a. S thit k h thng mng khu hnh chnh trng Cao ng Cng ngh thng tin:

Hnh 3 S mng khu hnh chnh(v bng visio 2003)


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b. V 2 khu cn li:Cn t thm router tng lng truy cp, h phm vi pht sng. Nht l i vi khu phng hc t bit l tng 5.

IV.

Kt lun:1. Nhng ni dung l thuyt c cng c:Sau khi thc tp ti trng nhm chng em hc tp v thu thp c nhiu

kin thc, t bit l kin thc v Mng Wifi. Hc c cch nhn nh v nh gi v mng, nm r hn v cch hot ng ca mng Wifi.

2. Nhng k nng thc hnh hc hi c v kinh nghim tch ly sau khi thc tp ti trng:C rt nhiu k nng nhm chng em hc hi c sau khi thc tp ti trng nh kho st iu kin vt l m la chn cu trc cho mng ph hp t gip thit k mt h thng mng hiu qu, n nh v t tn km. V nhng kinh nghm tch ly c: c hiu bit thm v k nng vi h thng mng, cch l kinh nghim qu bu v thc s cn thit i vi nhng Sinh vin thuc ngnh cng ngh thng tin nh chng em. Ngoi ra em cn hoi c cch lm vic nhm, cch phn cng cng vic.

3. Chi tit cc kt qu cng vic ng gp cho c quan ni thc tp:Nhm chng em ch kho st thc t h thng mng ca trng v th nhng cng vic mn ng gp cho trng khng nhiu. Tuy nhin, chng em kho st c tnh trng mng trong trng, v nu ra cch khc phc nh trn.

V. Nhn xt ca cn b hng dn:


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