Cisco Press Cisco Catalyst QoS Quality of Service in Campus Networks pdf pdf
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I ndex • Ci sco Ca t al yst QoS: Q ual i ty of Se r vi ce in Ca m pus Ne tw or k s By , ,
Mik e Flan nagan CCI E® No. 7651 Richar d Froom CCIE No. 5102 Kevin Tur ek CCI E No. 7284 Pub lish er: Cisco Press Pub Dat e: Ju ne 06, 2 00 3
I SBN: 1- 58 705 -1 20 -6 Pages: 43 2
En d- t o- end QoS deploy ment t ech niqu es f or Cisco Cat aly st ser ies sw it ches Ex am ine v ar iou s QoS com pon en t s, including cong est ion m anagem en t , congest ion av oidance, shaping , policing/ ad mission cont r ol, sign alin g, link eff iciency m ech anisms, an d classificat ion and m ark ing Map specif ied class of ser vice ( CoS) v alu es t o v ar ious qu eu es and m ain t ain CoS v alues t hr ou gh t he u se of 8 02. 1q t ag ging on t he Cisco Cat alyst 290 0XL, 350 0XL and Cat aly st 40 00 and 29 48G/ 298 0G Cat OS Fam ily of Sw it ches Lear n about classificat ion an d rew r it e capabilit ies and queue schedu lin g on t h e Cisco Cat aly st 5 000 I m plem ent ACLs, ACPs, ACEs, an d low - lat ency qu eu in g on t h e Cisco Cat aly st 2 950 and 35 50 Fam ily of Sw it ches Under st and classif icat ion , policyin g, an d scheduling capab ilit ies of t he Cat alyst 400 0 and 45 00 I OS Fam ily of Sw it ches Con figu re QoS in bot h Hy br id an d Nat iv e m ode on t h e Cat aly st 65 00 Family of Sw it ches Ut ilize Layer 3 QoS t o classif y v ary ing levels of ser v ice w it h t h e Cat aly st 65 00 MSFC an d Flex w an Under st and how t o app ly QoS in camp us n et w or k designs by exam inin g end - t o- end case st udies
Qu alit y of ser vice ( QoS) is t he set of t echn iq ues designed t o m anag e net w or k r esour ces. QoS r ef ers t o t h e cap abilit y of a n et w or k t o pr ov id e bet t er serv ice t o select ed net w ork t raf fic ov er v ariou s LAN and WAN t echnologies. The p r im ar y goal of QoS is t o pr ov ide f low pr iorit y , in clud ing dedicat ed b andw idt h, cont r olled j it t er and lat ency ( r eq uired by som e int er act ive an d d elay - sen sit iv e t r aff ic) , and im pr oved loss ch aract er ist ics. gener at ion of n et wor k ap plicat ion s such as real- t im e v oice com m unicat ions an d h igh- q ualit y v ideo deliver y, m ost of t he lit er at ur e av ailab le on t his fou ndat ion t echnolog y for cur r ent and fu t ur e bu sin ess ap plicat ion s focuses on I P QoS. Equally im por t ant is t he applicat ion of QoS in t he cam pus LAN env iron ment , w hich is p r im ar ily r espon sible f or d eliv er ing t r aff ic t o t he deskt op.
Cisco Cat alyst QoS is t he f ir st book t o con cent r at e ex clu siv ely on t he app licat ion of QoS in t h e
cam pus env ir onm en t . This pr act ical g uide p rov ides y ou wit h insigh t int o t he operat ion of QoS on t he most popu lar and w idely deployed LAN devices: t he Cisco Cat alyst fam ily of swit ches.
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Lev er agin g t he aut h or s' ex t en siv e ex pert ise at Cisco in t he supp ort of Cisco Cat aly st sw it ches
I ndex •
and QoS deploy ment , t he b ook pr esent s QoS f r om t he cam pu s LAN perspect ive. I t ex plains w hy
Ci sco Ca t al yst QoS: Q ual i ty of Se r vi ce in Ca m pus Ne tw or k s
QoS is essent ial in t his env ir onm en t in or der t o ach iev e a m or e det er min ist ic b eh avior f or t r aff ic
By , , Mik e Flan nagan CCI E® No. 7651 Richar d Froom CCIE No. 5102
w hen imp lem ent ing v oice, v ideo, or ot h er delay - sensit iv e ap plicat ion s. Thr ough ar chit ect u r al
Kevin Tur ek CCI E No. 7284
ov er v iew s, conf igur at ion ex am ples, real- w or ld d ep loym ent case st ud ies, an d sum m ar ies of com mon pit f alls, you w ill un derst and h ow QoS operat es, t h e diff erent comp onent s in volv ed in m akin g QoS possible, and how QoS can be im plem en t ed on t he var ious Cisco Cat alyst plat for m s Pub lish er: Cisco Press t o en able t r uly successfu l end- t o- end QoS app licat ions.
Pub Dat e: Ju ne 06, 2 00 3
I SBN: 1- 58 705 -1 20 -6
This b ook is par t of t he Net w ork ing Technology Ser ies fr om Cisco Pr ess, w h ich off ers n et wor k ing
Pages: 43 2
pr of essionals v alu able inf orm at ion for con st ru ct in g ef ficien t net w or k s, und er st andin g n ew t echnologies, and bu ild in g su ccessf ul car eer s.
En d- t o- end QoS deploy ment t ech niqu es f or Cisco Cat aly st ser ies sw it ches Ex am ine v ar iou s QoS com pon en t s, including cong est ion m anagem en t , congest ion av oidance, shaping , policing/ ad mission cont r ol, sign alin g, link eff iciency m ech anisms, an d classificat ion and m ark ing Map specif ied class of ser vice ( CoS) v alu es t o v ar ious qu eu es and m ain t ain CoS v alues t hr ou gh t he u se of 8 02. 1q t ag ging on t he Cisco Cat alyst 290 0XL, 350 0XL and Cat aly st 40 00 and 29 48G/ 298 0G Cat OS Fam ily of Sw it ches Lear n about classificat ion an d rew r it e capabilit ies and queue schedu lin g on t h e Cisco Cat aly st 5 000 I m plem ent ACLs, ACPs, ACEs, an d low - lat ency qu eu in g on t h e Cisco Cat aly st 2 950 and 35 50 Fam ily of Sw it ches Under st and classif icat ion , policyin g, an d scheduling capab ilit ies of t he Cat alyst 400 0 and 45 00 I OS Fam ily of Sw it ches Con figu re QoS in bot h Hy br id an d Nat iv e m ode on t h e Cat aly st 65 00 Family of Sw it ches Ut ilize Layer 3 QoS t o classif y v ary ing levels of ser v ice w it h t h e Cat aly st 65 00 MSFC an d Flex w an Under st and how t o app ly QoS in camp us n et w or k designs by exam inin g end - t o- end case st udies
Qu alit y of ser vice ( QoS) is t he set of t echn iq ues designed t o m anag e net w or k r esour ces. QoS r ef ers t o t h e cap abilit y of a n et w or k t o pr ov id e bet t er serv ice t o select ed net w ork t raf fic ov er v ariou s LAN and WAN t echnologies. The p r im ar y goal of QoS is t o pr ov ide f low pr iorit y , in clud ing dedicat ed b andw idt h, cont r olled j it t er and lat ency ( r eq uired by som e int er act ive an d d elay - sen sit iv e t r aff ic) , and im pr oved loss ch aract er ist ics.
- Table of Content s
- I ndex
- Table of Content s
- I ndex
Ci sco Ca t al yst QoS: Q ual i ty of Se r vi ce in Ca m pus Ne tw or k s By
Mik e Flan nagan CCI E® No. 7651 ,
Richar d Froom CCIE No. 5102 ,
Kevin Tur ek CCI E No. 7284 Pub lish er: Cisco Press Pub Dat e: Ju ne 06, 2 00 3
I SBN: 1- 58 705 -1 20 -6 Pages: 43 2
En d- t o- end QoS deploy ment t ech niqu es f or Cisco Cat aly st ser ies sw it ches Ex am ine v ar iou s QoS com pon en t s, including cong est ion m anagem en t , congest ion av oidance, shaping , policing/ ad mission cont r ol, sign alin g, link eff iciency m ech anisms, an d classificat ion and m ark ing Map specif ied class of ser vice ( CoS) v alu es t o v ar ious qu eu es and m ain t ain CoS v alues t hr ou gh t he u se of 8 02. 1q t ag ging on t he Cisco Cat alyst 290 0XL, 350 0XL and Cat aly st 40 00 and 29 48G/ 298 0G Cat OS Fam ily of Sw it ches Lear n about classificat ion an d rew r it e capabilit ies and queue schedu lin g on t h e Cisco Cat aly st 5 000 I m plem ent ACLs, ACPs, ACEs, an d low - lat ency qu eu in g on t h e Cisco Cat aly st 2 950 and 35 50 Fam ily of Sw it ches Under st and classif icat ion , policyin g, an d scheduling capab ilit ies of t he Cat alyst 400 0 and 45 00 I OS Fam ily of Sw it ches Con figu re QoS in bot h Hy br id an d Nat iv e m ode on t h e Cat aly st 65 00 Family of Sw it ches Ut ilize Layer 3 QoS t o classif y v ary ing levels of ser v ice w it h t h e Cat aly st 65 00 MSFC an d Flex w an Under st and how t o app ly QoS in camp us n et w or k designs by exam inin g end - t o- end case st udies
Qu alit y of ser vice ( QoS) is t he set of t echn iq ues designed t o m anag e net w or k r esour ces. QoS r ef ers t o t h e cap abilit y of a n et w or k t o pr ov id e bet t er serv ice t o select ed net w ork t raf fic ov er v ariou s LAN and WAN t echnologies. The p r im ar y goal of QoS is t o pr ov ide f low pr iorit y , in clud ing dedicat ed b andw idt h, cont r olled j it t er and lat ency ( r eq uired by som e int er act ive an d d elay - sen sit iv e t r aff ic) , and im pr oved loss ch aract er ist ics.
Ci sco Ca t al yst QoS: Q ual i ty of Se r vi ce in Ca m pus Ne tw or k s By
Mik e Flan nagan CCI E® No. 7651 ,
Richar d Froom CCIE No. 5102 ,
Kevin Tur ek CCI E No. 7284 Pub lish er: Cisco Press Pub Dat e: Ju ne 06, 2 00 3
I SBN: 1- 58 705 -1 20 -6 Pages: 43 2 Copy right About th e Aut h ors About th e Tech nical Rev iewer s Ack nowledgmen ts I con s Used in Th is Book Com man d Sy nt ax Conv ent ions I n tr oduct ion Mot iv at ion for This Book
Goal of Th is Book Prerequisit es How This Book I s Organized
Part I . Fu ndam en t al QoS Con cept s Cha pter 1. Qualit y of Ser vice: An Ov erv iew Un derst andin g QoS Dep loy in g QoS in t he WAN/ LAN: High- Lev el Ov erv iew Cisco AVVI D Overv iew of I nt egrat ed an d Diff eren t iated Serv ices Diff er en t iat ed Serv ices: A St andar ds Approach Sum m ar y Cha pter 2. En d-t o- End QoS: Qu alit y of Serv ice at Lay er 3 an d Lay er 2 QoS Com ponent s Con gest ion Managem en t Con gest ion Av oidance Tok en Bu ck et Mechan ism Traf fic Shaping Policing QoS Signaling Lin k Ef ficiency Classif icat io n a nd Mark ing at Layer 3 Per-Hop Behav iors
Classif icat io n a nd Mark ing at Layer 2 Mapp in g Lay er 2 t o Lay er 3 Values A General View of QoS o n t h e Cat aly st Plat f orms Cisco Cat alyst QoS Tru st Con cep t Sum m ar y
Cha pter 3. Overv iew of QoS Supp ort on Cat aly st Plat f orm s an d Explor in g QoS o n t h e Cat aly st 2 900 XL, 35 00 XL, and Cat aly st 4 000 Cat OS Fam ily of Swit ch es
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Cat aly st Feat ure Ov erv iew I ndex •
Mat erial Presen t at io n f or Cat alyst Swit ch ing Plat form s Ci sco Ca t al yst QoS: Q ual i ty of Se r vi ce in Ca m pus Ne tw or k s
QoS Suppor t on t he Ca taly st 290 0XL and 35 00 XL By , ,
Mik e Flan nagan CCI E® No. 7651 Richar d Froom CCIE No. 5102 QoS Suppor t on t he Ca taly st 400 0 Cat OS Fam ily of Swit ches
Kevin Tur ek CCI E No. 7284 Cha pter 4. QoS Support on t he Cat aly st 5 00 0 Fam ily of Swit ches Cat aly st 5 000 Fam ily of Swit ch es QoS Arch itect ur al Ov erv iew
Pub lish er: Cisco Press En abling QoS Feat u res on t he Cat alyst 50 00 Family of Swit ches
Pub Dat e: Ju ne 06, 2 00 3 I n put Sch edu ling
I SBN: 1- 58 705 -1 20 -6 Classif icat io n a nd Mark ing
Pages: 43 2 Con gest ion Av oidance Case St ud y Sum m ar y
Part I I . Adv an ced QoS Con cep ts Cha pter 5. I nt rod uct ion t o t he Modu lar QoS Com m and- Line I nt erfa ce En d- t o- end QoS deploy ment t ech niqu es f or Cisco Cat aly st ser ies sw it ches MQC Back gro und, Term s, an d Con cept s St ep 1: Th e Class Map Ex am ine v ar iou s QoS com pon en t s, including cong est ion m anagem en t , congest ion St ep 2: Th e Policy Map
av oidance, shaping , policing/ ad mission cont r ol, sign alin g, link eff iciency m ech anisms, an d
St ep 3: At t achin g t he Serv ice Po licy
classificat ion and m ark ing
Sum m ar y Cha pter 6. QoS Feat u res Av ailable on t he Ca taly st 295 0 and 35 50 Family of Swit ches
Map specif ied class of ser vice ( CoS) v alu es t o v ar ious qu eu es and m ain t ain CoS v alues
Cat aly st 2 950 an d Cat aly st 355 0 Fam ily of Swit ches QoS Archit ectu ral Ov erv iew
t hr ou gh t he u se of 8 02. 1q t ag ging on t he Cisco Cat alyst 290 0XL, 350 0XL and Cat aly st 40 00
I n put Sch edu ling
and 29 48G/ 298 0G Cat OS Fam ily of Sw it ches
Classif icat io n a nd Mark ing
Lear n about classificat ion an d rew r it e capabilit ies and queue schedu lin g on t h e Cisco
Policing
Cat aly st 5 000
Con gest ion Managem en t an d Av oidance Aut o- QoS
I m plem ent ACLs, ACPs, ACEs, an d low - lat ency qu eu in g on t h e Cisco Cat aly st 2 950 and
Case St ud y
35 50 Fam ily of Sw it ches
Sum m ar y
Under st and classif icat ion , policyin g, an d scheduling capab ilit ies of t he Cat alyst 400 0 and
Cha pter 7. QoS Feat u res Av ailable on t he Ca taly st 400 0 I OS Family of Swit ches and t he Cat aly st G- L3 Family o f
45 00 I OS Fam ily of Sw it ches
Switches QoS Suppor t on t he Ca taly st 400 0 I OS Family of Swit ches
Con figu re QoS in bot h Hy br id an d Nat iv e m ode on t h e Cat aly st 65 00 Family of Sw it ches
QoS Suppor t on t he Ca taly st 294 8G-L3, 4 908 G- L3 , and Cat aly st 40 00 Layer 3 Serv ices Modu le Sum m ar y
Ut ilize Layer 3 QoS t o classif y v ary ing levels of ser v ice w it h t h e Cat aly st 65 00 MSFC an d
Cha pter 8. QoS Support on t he Cat aly st 6 50 0
Flex w an
Cat aly st 6 500 Arch itect u ral Ov er view
Under st and how t o app ly QoS in camp us n et w or k designs by exam inin g end - t o- end case
En abling QoS on t he Swit ch
st udies
I n put Sch edu ling Classif icat io n a nd Mark ing
Qu alit y of ser vice ( QoS) is t he set of t echn iq ues designed t o m anag e net w or k r esour ces. QoS
Mapp in g
r ef ers t o t h e cap abilit y of a n et w or k t o pr ov id e bet t er serv ice t o select ed net w ork t raf fic ov er
Policing
v ariou s LAN and WAN t echnologies. The p r im ar y goal of QoS is t o pr ov ide f low pr iorit y , in clud ing
Con gest ion Managem en t an d Con gestion Av oidance
dedicat ed b andw idt h, cont r olled j it t er and lat ency ( r eq uired by som e int er act ive an d d elay - sen sit iv e t r aff ic) , and im pr oved loss ch aract er ist ics. Aut om at ic QoS
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Ci sco Ca t al yst QoS: Q ual i ty of Se r vi ce in Ca m pus Ne tw or k s By
Mik e Flan nagan CCI E® No. 7651 ,
Richar d Froom CCIE No. 5102 ,
Kevin Tur ek CCI E No. 7284 Pub lish er: Cisco Press Pub Dat e: Ju ne 06, 2 00 3
I SBN: 1- 58 705 -1 20 -6 Pages: 43 2
En d- t o- end QoS deploy ment t ech niqu es f or Cisco Cat aly st ser ies sw it ches Ex am ine v ar iou s QoS com pon en t s, including cong est ion m anagem en t , congest ion av oidance, shaping , policing/ ad mission cont r ol, sign alin g, link eff iciency m ech anisms, an d classificat ion and m ark ing Map specif ied class of ser vice ( CoS) v alu es t o v ar ious qu eu es and m ain t ain CoS v alues t hr ou gh t he u se of 8 02. 1q t ag ging on t he Cisco Cat alyst 290 0XL, 350 0XL and Cat aly st 40 00 and 29 48G/ 298 0G Cat OS Fam ily of Sw it ches Lear n about classificat ion an d rew r it e capabilit ies and queue schedu lin g on t h e Cisco Cat aly st 5 000 I m plem ent ACLs, ACPs, ACEs, an d low - lat ency qu eu in g on t h e Cisco Cat aly st 2 950 and 35 50 Fam ily of Sw it ches Under st and classif icat ion , policyin g, an d scheduling capab ilit ies of t he Cat alyst 400 0 and 45 00 I OS Fam ily of Sw it ches Con figu re QoS in bot h Hy br id an d Nat iv e m ode on t h e Cat aly st 65 00 Family of Sw it ches Ut ilize Layer 3 QoS t o classif y v ary ing levels of ser v ice w it h t h e Cat aly st 65 00 MSFC an d Flex w an Under st and how t o app ly QoS in camp us n et w or k designs by exam inin g end - t o- end case st udies
Qu alit y of ser vice ( QoS) is t he set of t echn iq ues designed t o m anag e net w or k r esour ces. QoS r ef ers t o t h e cap abilit y of a n et w or k t o pr ov id e bet t er serv ice t o select ed net w ork t raf fic ov er v ariou s LAN and WAN t echnologies. The p r im ar y goal of QoS is t o pr ov ide f low pr iorit y , in clud ing dedicat ed b andw idt h, cont r olled j it t er and lat ency ( r eq uired by som e int er act ive an d d elay - sen sit iv e t r aff ic) , and im pr oved loss ch aract er ist ics.
Cha pter 9. QoS Support on t he Cat aly st 6 50 0 MSFC and Flex WAN MSFC an d Flex WAN Arch it ect ur al Overv iew QoS Suppor t on t he MSFC and Flex WAN Classif icat io n Mar kin g Policing and Shapin g Con gest ion Managem en t an d Schedu lin g Con gest ion Av oidance Sum m ar y
Cha pter 10 . End- to -En d QoS Ca se Stu dies Cha pter Prerequisit es an d Mat er ial Present at ion Mu ltiplat f orm Cam pus Net work Design and Topology Access Lay er Swit ches Dist ribut ion Lay er Core Lay er Sum m ar y I n dex
Copyright Cop yr igh t © 2 003 Cisco Sy st em s, I nc.
Cisco Pr ess log o is a t rad em ar k of Cisco Sy st em s, I nc.
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Ci sco Ca t al yst QoS: Q ual i ty of Se r vi ce in Ca m pus Ne tw or k s
Cisco Pr ess
By , , Mik e Flan nagan CCI E® No. 7651 Richar d Froom CCIE No. 5102
20 1 W est 103 rd St r eet
Kevin Tur ek CCI E No. 7284
I ndian apolis, I N 462 90 USA All r ight s reserv ed. No par t of t h is book m ay b e repr od uced or t r ansm it t ed in an y for m or b y any
Pub lish er: Cisco Press
m ean s, elect r onic or m ech anical, inclu ding ph ot ocopy in g, r ecor d in g, or by any in for m at ion
Pub Dat e: Ju ne 06, 2 00 3
st or age and r et r iev al syst em , w it hou t w r it t en p er m ission fr om t h e pu blish er , ex cept for t he
I SBN: 1- 58 705 -1 20 -6 inclusion of b rief qu ot at ions in a r eview . Pages: 43 2
Pr int ed in t h e Un it ed St at es of Am erica 1 2 3 4 5 6 7 8 9 0 Lib rar y of Con gr ess Cat aloging- in - Publicat ion Num ber: 20 021 091 66 En d- t o- end QoS deploy ment t ech niqu es f or Cisco Cat aly st ser ies sw it ches
Warning and Disclaimer
Ex am ine v ar iou s QoS com pon en t s, including cong est ion m anagem en t , congest ion This b ook is desig ned t o pr ov ide inf or mat ion ab out qu alit y of ser v ice ( QoS) f or t he Cisco Cat aly st av oidance, shaping , policing/ ad mission cont r ol, sign alin g, link eff iciency m ech anisms, an d sw it ch plat f or m. Ev er y eff or t h as been m ade t o m ak e t his b ook as comp let e and as accu rat e as classificat ion and m ark ing possible, but no w arr ant y or fit n ess is im plied.
Map specif ied class of ser vice ( CoS) v alu es t o v ar ious qu eu es and m ain t ain CoS v alues The in for m at ion is p r ovided on an " as is" basis. The au t hor s, Cisco Pr ess, and Cisco Sy st em s, t hr ou gh t he u se of 8 02. 1q t ag ging on t he Cisco Cat alyst 290 0XL, 350 0XL and Cat aly st 40 00 I nc. shall h ave n eit h er liab ilit y n or r espon sib ilit y t o any person or ent it y w it h r espect t o any loss and 29 48G/ 298 0G Cat OS Fam ily of Sw it ches or d amag es arising fr om t h e inf orm at ion cont ained in t h is book or fr om t h e use of t he d iscs or pr ogr am s t h at m ay accomp any it .
Lear n about classificat ion an d rew r it e capabilit ies and queue schedu lin g on t h e Cisco Cat aly st 5 000
The op inions ex pr essed in t his b ook belong t o t he aut hor and ar e not necessar ily t hose of Cisco Sy st em s, I nc.
I m plem ent ACLs, ACPs, ACEs, an d low - lat ency qu eu in g on t h e Cisco Cat aly st 2 950 and 35 50 Fam ily of Sw it ches
Feedback Information
Under st and classif icat ion , policyin g, an d scheduling capab ilit ies of t he Cat alyst 400 0 and 45 00 I OS Fam ily of Sw it ches At Cisco Press, our g oal is t o cr eat e in- d ep t h t echn ical book s of t he h ig hest qu alit y and v alu e. Each book is cr aft ed w it h car e an d p recision , und er g oin g r igor ous developm ent t hat in volv es t he Con figu re QoS in bot h Hy br id an d Nat iv e m ode on t h e Cat aly st 65 00 Family of Sw it ches un iq ue ex pert ise of m emb er s f r om t he pr ofessional t ech nical com m un it y.
Ut ilize Layer 3 QoS t o classif y v ary ing levels of ser v ice w it h t h e Cat aly st 65 00 MSFC an d Reader s' f eed back is a n at ur al cont inu at ion of t his pr ocess. I f y ou h ave any com ment s regar d in g Flex w an how w e cou ld im pr ov e t he qualit y of t h is book , or ot h er w ise alt er it t o bet t er su it y our n eeds,
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Qu alit y of ser vice ( QoS) is t he set of t echn iq ues designed t o m anag e net w or k r esour ces. QoS We g reat ly app r eciat e y our assist an ce. r ef ers t o t h e cap abilit y of a n et w or k t o pr ov id e bet t er serv ice t o select ed net w ork t raf fic ov er v ariou s LAN and WAN t echnologies. The p r im ar y goal of QoS is t o pr ov ide f low pr iorit y , in clud ing dedicat ed b andw idt h, cont r olled j it t er and lat ency ( r eq uired by som e int er act ive an d d elay -
Trademark Acknowledgments sen sit iv e t r aff ic) , and im pr oved loss ch aract er ist ics. app rop riat ely capit alized. Cisco Pr ess or Cisco Syst em s, I nc. cannot at t est t o t he accur acy of t his inf orm at ion. Use of a t er m in t h is book should not be regar ded as af fect in g t he v alid it y of any t r adem ark or ser v ice m ar k .
Pub lisher John Wait
Ed it or- I n - Chief John Kane
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Cisco Repr esent at ive Ant h ony Wolf en den
I ndex • Ci sco Ca t al yst QoS: Q ual i ty of Se r vi ce in Ca m pus Ne tw or k s
Cisco Pr ess Pr ogr am Manager Sonia Torr es Ch avez
By , , Mik e Flan nagan CCI E® No. 7651 Richar d Froom CCIE No. 5102
Cisco Mar k et in g Com mu nicat ion s Man ager Scot t Miller
Kevin Tur ek CCI E No. 7284
Cisco Mar k et in g Pr og ram Manager Ed ie Quir oz
Pub lish er: Cisco Press
Ex ecu t ive Edit or Br et t Bar t ow
Pub Dat e: Ju ne 06, 2 00 3
I SBN: 1- 58 705 -1 20 -6
Pr oduct ion Manag er Pat r ick Kanouse
Pages: 43 2
Dev elopm ent Edit or Jennif er Fost er
Cop y Edit or Keit h Clin e
Tech nical Ed it ors Jason Cor net t
En d- t o- end QoS deploy ment t ech niqu es f or Cisco Cat aly st ser ies sw it ches Lau ren Dy gow ski Balaji Siv asubr am anian
Ex am ine v ar iou s QoS com pon en t s, including cong est ion m anagem en t , congest ion av oidance, shaping , policing/ ad mission cont r ol, sign alin g, link eff iciency m ech anisms, an d Team Coor dinat or
Tam m i Ross classificat ion and m ark ing Book Designer
Gina Rex rod e Map specif ied class of ser vice ( CoS) v alu es t o v ar ious qu eu es and m ain t ain CoS v alues
Cov er Desig ner Lou isa Adair t hr ou gh t he u se of 8 02. 1q t ag ging on t he Cisco Cat alyst 290 0XL, 350 0XL and Cat aly st 40 00 and 29 48G/ 298 0G Cat OS Fam ily of Sw it ches
Com posit or Mar k Shir ar
Lear n about classificat ion an d rew r it e capabilit ies and queue schedu lin g on t h e Cisco I ndex er
Tim Wr ight Cat aly st 5 000
Pr oofr eader Missy Plu t a
I m plem ent ACLs, ACPs, ACEs, an d low - lat ency qu eu in g on t h e Cisco Cat aly st 2 950 and 35 50 Fam ily of Sw it ches Under st and classif icat ion , policyin g, an d scheduling capab ilit ies of t he Cat alyst 400 0 and 45 00 I OS Fam ily of Sw it ches Con figu re QoS in bot h Hy br id an d Nat iv e m ode on t h e Cat aly st 65 00 Family of Sw it ches
Corpor at e H e a dqua rt er s Cisco Sy st em s, I nc.
Ut ilize Layer 3 QoS t o classif y v ary ing levels of ser v ice w it h t h e Cat aly st 65 00 MSFC an d 17 0 W est Tasm an Dr ive Flex w an
San Jose, CA 9 513 4- 17 06 USA
Under st and how t o app ly QoS in camp us n et w or k designs by exam inin g end - t o- end case
w w w .cisco. com
st udies Tel: 40 8 526- 400 0 8 00 553 - NETS ( 638 7) Qu alit y of ser vice ( QoS) is t he set of t echn iq ues designed t o m anag e net w or k r esour ces. QoS Fax: 40 8 5 26- 4 100 r ef ers t o t h e cap abilit y of a n et w or k t o pr ov id e bet t er serv ice t o select ed net w ork t raf fic ov er v ariou s LAN and WAN t echnologies. The p r im ar y goal of QoS is t o pr ov ide f low pr iorit y , in clud ing
Eur ope an H ea dq ua rt e rs
dedicat ed b andw idt h, cont r olled j it t er and lat ency ( r eq uired by som e int er act ive an d d elay - Cisco Sy st em s I nt er nat ional BV sen sit iv e t r aff ic) , and im pr oved loss ch aract er ist ics.
Haar ler ber gpar k
11 01 CH Am st erd am The Net h er lands
w w w - eu rop e. cisco. com
Tel: 31 0 20 35 7 100 0 Fax: 31 0 20 35 7 1 100
Am e ri ca s H e adq ua rt e rs Cisco Sy st em s, I nc.
Table of Content s •
17 0 W est Tasm an Dr ive
I ndex •
San Jose, CA 9 513 4- 17 06
Ci sco Ca t al yst QoS: Q ual i ty of Se r vi ce in Ca m pus Ne tw or k s
USA
By , , Mik e Flan nagan CCI E® No. 7651 Richar d Froom CCIE No. 5102 w w w .cisco. com Kevin Tur ek CCI E No. 7284
Tel: 40 8 526- 766 0 Fax: 40 8 5 27- 0 883
Pub lish er: Cisco Press Asia Pa ci fi c H e adq ua rt e rs
Pub Dat e: Ju ne 06, 2 00 3 Cisco Sy st em s, I nc.
I SBN: 1- 58 705 -1 20 -6
Cap it al Tow er
Pages: 43 2
16 8 Robinson Road # 22 - 01 t o # 2 9- 01 Singap or e 068 912
w w w .cisco. com
Tel: + 65 63 17 777 7 En d- t o- end QoS deploy ment t ech niqu es f or Cisco Cat aly st ser ies sw it ches Fax: + 65 63 17 779 9 Cisco Sy st em s h as m ore t han 200 of fices in t h e follow ing cou nt r ies and r eg ion s. Addr esses,
Ex am ine v ar iou s QoS com pon en t s, including cong est ion m anagem en t , congest ion ph one nu m bers, an d f ax nu m bers ar e list ed on t h e Cisco.com W eb sit e a t av oidance, shaping , policing/ ad mission cont r ol, sign alin g, link eff iciency m ech anisms, an d w w w .cisco. com / go/ of fices . classificat ion and m ark ing
Ar gent ina • Au st r alia • Aust r ia • Belgiu m • Br azil • Bulgar ia • Canad a • Chile • China PRC • Map specif ied class of ser vice ( CoS) v alu es t o v ar ious qu eu es and m ain t ain CoS v alues
Colom bia • Cost a Rica • Cr oat ia • Czech Repu blic • D en mar k • Dub ai, UAE • Fin lan d • Fran ce • t hr ou gh t he u se of 8 02. 1q t ag ging on t he Cisco Cat alyst 290 0XL, 350 0XL and Cat aly st 40 00 Ger man y • Greece • Hong Kon g SAR • Hu ngar y • I ndia • I nd onesia • I r eland • I sr ael • I t aly • and 29 48G/ 298 0G Cat OS Fam ily of Sw it ches Japan • Korea • Lu xem bou rg • Malaysia • Mex ico • The Net h er land s • New Zealand • Nor w ay • Peru • Philippines • Poland • Por t ug al • Puert o Rico • Rom ania • Ru ssia • Saud i Ar abia •
Lear n about classificat ion an d rew r it e capabilit ies and queue schedu lin g on t h e Cisco Scot land • Sing apor e • Slov ak ia • Slov enia • Sout h Afr ica • Spain • Sw eden • Sw it zerland •
Cat aly st 5 000 Taiw an • Thailand • Tur key • Uk r aine • Un it ed Kingd om • Un it ed St at es • Ven ezu ela • Viet nam • Zim babw e
I m plem ent ACLs, ACPs, ACEs, an d low - lat ency qu eu in g on t h e Cisco Cat aly st 2 950 and 35 50 Fam ily of Sw it ches Cop yr igh t © 200 3 Cisco Sy st ems, I n c. All rig ht s r eser v ed . CCI P, CCSP, t h e Cisco Ar row logo, t h e Cisco Pow ered Net w or k m ar k, t he Cisco Sy st em s Ver ified log o, Cisco Un it y, Follow Me Brow sing ,
Under st and classif icat ion , policyin g, an d scheduling capab ilit ies of t he Cat alyst 400 0 and Form Sh are, iQ Net Readiness Scorecar d, Net w or king Academ y, and Scr ipt Sh ar e are t r ademar k s 45 00 I OS Fam ily of Sw it ches of Cisco Sy st em s, I nc. ; Ch angin g t h e Way We W ork , Live, Play , and Lear n, Th e Fast est W ay t o I ncr ease Your I n t ern et Quot ient , and iQuick St ud y ar e ser v ice m ar k s of Cisco Sy st em s, I nc.; and
Con figu re QoS in bot h Hy br id an d Nat iv e m ode on t h e Cat aly st 65 00 Family of Sw it ches Air onet , ASI ST, BPX, Cat aly st , CCDA, CCDP, CCI E, CCNA, CCNP, Cisco, t he Cisco Cer t ified I nt er net w ork Ex pert logo, Cisco I OS, t he Cisco I OS logo, Cisco Pr ess, Cisco Sy st ems, Cisco
Ut ilize Layer 3 QoS t o classif y v ary ing levels of ser v ice w it h t h e Cat aly st 65 00 MSFC an d Sy st em s Cap it al, t he Cisco Sy st ems log o, Em p ower ing t he I nt er net Generat ion ,
Flex w an En t er p rise/ Solv er , Et h er Ch annel, Et h er Sw it ch, Fast St ep, GigaSt ack , I nt er net Qu ot ien t , I OS,
I P/ TV, iQ Ex pert ise, t he iQ logo, Light St ream , MGX, MI CA, t h e Net w ork ers log o, Net w ork Under st and how t o app ly QoS in camp us n et w or k designs by exam inin g end - t o- end case
Regist r ar, Packet , PI X, Post - Rout ing , Pr e- Rout ing , Rat eMUX, Regist r ar, Slid eCast , SMARTn et , st udies St r at a View Plus, St rat m , Sw it chPr obe, TeleRout er , Tr ansPat h, and VCO are regist ered t r adem ark s of Cisco Sy st em s, I nc. an d/ or it s af filiat es in t he U. S. and cer t ain ot her coun t ries. Qu alit y of ser vice ( QoS) is t he set of t echn iq ues designed t o m anag e net w or k r esour ces. QoS r ef ers t o t h e cap abilit y of a n et w or k t o pr ov id e bet t er serv ice t o select ed net w ork t raf fic ov er
All ot h er t rad em ar k s m en t ioned in t his d ocum en t or W eb sit e ar e t he p r opert y of t heir respect ive v ariou s LAN and WAN t echnologies. The p r im ar y goal of QoS is t o pr ov ide f low pr iorit y , in clud ing ow ner s. The use of t h e w or d p art ner does not im ply a p art nership r elat ion sh ip b et w een Cisco dedicat ed b andw idt h, cont r olled j it t er and lat ency ( r eq uired by som e int er act ive an d d elay - and any ot her comp any . ( 03 03R) sen sit iv e t r aff ic) , and im pr oved loss ch aract er ist ics.
Dedications
Mike Flannagan :
I w ould like t o d ed icat e t h is book t o Ann e. Th ank y ou for y our loving sup por t an d
- Table of Content s encour agem en t d ur in g t he seem ing ly en dless n ig ht s an d weekend s spent on t his pr oject .
- I ndex
Ci sco Ca t al yst QoS: Q ual i ty of Se r vi ce in Ca m pus Ne tw or k s Richar d Fr oom : By , ,
Mik e Flan nagan CCI E® No. 7651 Richar d Froom CCIE No. 5102
I w ould like t o d ed icat e t h is book t o m y w ife Elizab et h f or her sup por t , un derst an ding, and
Kevin Tur ek CCI E No. 7284
pat ience w hile I w as aut hor ing t he book . I w ould also like t o t h ank Elizabet h for her cooperat ion and assist an ce in r eview in g my mat er ial.
Pub lish er: Cisco Press Pub Dat e: Ju ne 06, 2 00 3 Kevin Tur ek :
I SBN: 1- 58 705 -1 20 -6
I w ould like t o t h ank Tar a f or all of h er encour ag em ent and pat ience du ring m y inv olv em ent in
Pages: 43 2
t his p r oject . I w ould not hav e been ab le t o com plet e m y por t ion of t he b ook if not for y our sacr if ices and un derst an ding. I w ould also like t o t han k t he m em ber s of t he Federal Supp ort Pr ogr am f or t heir supp ort . Fin ally , I wou ld lik e t o t hank m y f am ily and fr ien ds f or inst illin g in m e t he values an d et h ics t h at h ave allow ed me t o get t o t h e point w her e I am t od ay.
En d- t o- end QoS deploy ment t ech niqu es f or Cisco Cat aly st ser ies sw it ches Ex am ine v ar iou s QoS com pon en t s, including cong est ion m anagem en t , congest ion av oidance, shaping , policing/ ad mission cont r ol, sign alin g, link eff iciency m ech anisms, an d classificat ion and m ark ing Map specif ied class of ser vice ( CoS) v alu es t o v ar ious qu eu es and m ain t ain CoS v alues t hr ou gh t he u se of 8 02. 1q t ag ging on t he Cisco Cat alyst 290 0XL, 350 0XL and Cat aly st 40 00 and 29 48G/ 298 0G Cat OS Fam ily of Sw it ches Lear n about classificat ion an d rew r it e capabilit ies and queue schedu lin g on t h e Cisco Cat aly st 5 000 I m plem ent ACLs, ACPs, ACEs, an d low - lat ency qu eu in g on t h e Cisco Cat aly st 2 950 and 35 50 Fam ily of Sw it ches Under st and classif icat ion , policyin g, an d scheduling capab ilit ies of t he Cat alyst 400 0 and 45 00 I OS Fam ily of Sw it ches Con figu re QoS in bot h Hy br id an d Nat iv e m ode on t h e Cat aly st 65 00 Family of Sw it ches Ut ilize Layer 3 QoS t o classif y v ary ing levels of ser v ice w it h t h e Cat aly st 65 00 MSFC an d Flex w an Under st and how t o app ly QoS in camp us n et w or k designs by exam inin g end - t o- end case st udies
Qu alit y of ser vice ( QoS) is t he set of t echn iq ues designed t o m anag e net w or k r esour ces. QoS r ef ers t o t h e cap abilit y of a n et w or k t o pr ov id e bet t er serv ice t o select ed net w ork t raf fic ov er v ariou s LAN and WAN t echnologies. The p r im ar y goal of QoS is t o pr ov ide f low pr iorit y , in clud ing dedicat ed b andw idt h, cont r olled j it t er and lat ency ( r eq uired by som e int er act ive an d d elay - sen sit iv e t r aff ic) , and im pr oved loss ch aract er ist ics.
About the Authors
Mi k e Fla nna ga n, CCI E N o. 7 6 5 1 , is a m anager in t he High Tou ch Technical Sup por t ( HTTS)
gr oup at Cisco Syst em s in Resear ch Tr iang le Park , Nor t h Car olina. Mik e j oin ed Cisco in 200 0 as a net w or k consult ing engineer in t he Cisco Ad van ced Ser v ices g rou p, w her e he led t he cr eat ion
- Table of Content s
and deploy m en t of t h e QoS Vir t u al Team. As a m em ber of t he QoS Vir t ual Team , Mik e w as
I ndex •
inv olved w it h t he dev elop ment of new QoS feat u res f or Cisco I OS an d developed QoS st r at egies
Ci sco Ca t al yst QoS: Q ual i ty of Se r vi ce in Ca m pus Ne tw or k s
and im plement at ion g uidelin es for som e of t he lar g est Cisco en t er pr ise cust om er s. Mik e t each es
By , , Mik e Flan nagan CCI E® No. 7651 Richar d Froom CCIE No. 5102
QoS classes and lead s desig n clinics for in t ern al and ext er nal audiences and is t he au t hor of
Kevin Tur ek CCI E No. 7284 Adm inist er in g Cisco QoS f or I P Net w ork s , p ublished b y Sy ngr ess.
Pub lish er: Cisco Press Ri ch ar d Fr oom , CCI E N o. 5 1 0 2 , is a soft w ar e and QA en gineer for t he Financial Test Lab at
Pub Dat e: Ju ne 06, 2 00 3
Cisco Sy st em s in Resear ch Tr iang le Park . Rich ard j oin ed Cisco in 19 98 as a cust om er supp ort engineer in t he Cisco Technical Assist an ce Or ganizat ion. Rich ar d, as a cust om er sup por t
I SBN: 1- 58 705 -1 20 -6
engineer , ser v ed as a supp ort engineer t r oub leshoot ing cust om ers' net w or ks and as a t echn ical
Pages: 43 2
t eam lead. Being inv olv ed w it h Cat alyst pr oduct field t r ials, Richar d h as been cr ucial in dr ivin g t r oub leshoot ing capab ilit ies of Cat aly st pr odu ct s and soft w ar e. Cur r ent ly , Richar d is w ork ing w it h t he Cisco st or ag e net w ork ing pr od uct s. Richar d ear ned his bachelor of science d eg ree in com put er eng in eer ing at Clem son Univ ersit y .
En d- t o- end QoS deploy ment t ech niqu es f or Cisco Cat aly st ser ies sw it ches
Ke v in Ture k , CCI E N o. 7 2 8 4 , is cur r ent ly w or king as a net w or k consult ing engineer in t he
Cisco Fed er al Su ppor t Pr ogr am in Resear ch Tr iangle Par k . He cur r en t ly supp ort s som e of t h e Cisco Depar t m ent of Def ense cust omer s. Kevin is also a m em ber of t he in t er n al Cisco QoS vir t ual
Ex am ine v ar iou s QoS com pon en t s, including cong est ion m anagem en t , congest ion t eam , supp ort in g b ot h in t ern al Cisco engin eer s and ext er nal Cisco cu st om er s w it h QoS av oidance, shaping , policing/ ad mission cont r ol, sign alin g, link eff iciency m ech anisms, an d deploy m en t an d p rom ot in g cur r ent in dust r y best p ract ices as t hey p er t ain t o QoS. Kev in ear n ed classificat ion and m ark ing his b ach elor of scien ce degr ee in bu sin ess ad min ist r at ion at t h e St at e Univ er sit y of New Yor k,
St ony Brook .
Map specif ied class of ser vice ( CoS) v alu es t o v ar ious qu eu es and m ain t ain CoS v alues t hr ou gh t he u se of 8 02. 1q t ag ging on t he Cisco Cat alyst 290 0XL, 350 0XL and Cat aly st 40 00 and 29 48G/ 298 0G Cat OS Fam ily of Sw it ches Lear n about classificat ion an d rew r it e capabilit ies and queue schedu lin g on t h e Cisco Cat aly st 5 000 I m plem ent ACLs, ACPs, ACEs, an d low - lat ency qu eu in g on t h e Cisco Cat aly st 2 950 and 35 50 Fam ily of Sw it ches Under st and classif icat ion , policyin g, an d scheduling capab ilit ies of t he Cat alyst 400 0 and 45 00 I OS Fam ily of Sw it ches Con figu re QoS in bot h Hy br id an d Nat iv e m ode on t h e Cat aly st 65 00 Family of Sw it ches Ut ilize Layer 3 QoS t o classif y v ary ing levels of ser v ice w it h t h e Cat aly st 65 00 MSFC an d Flex w an Under st and how t o app ly QoS in camp us n et w or k designs by exam inin g end - t o- end case st udies
Qu alit y of ser vice ( QoS) is t he set of t echn iq ues designed t o m anag e net w or k r esour ces. QoS r ef ers t o t h e cap abilit y of a n et w or k t o pr ov id e bet t er serv ice t o select ed net w ork t raf fic ov er v ariou s LAN and WAN t echnologies. The p r im ar y goal of QoS is t o pr ov ide f low pr iorit y , in clud ing dedicat ed b andw idt h, cont r olled j it t er and lat ency ( r eq uired by som e int er act ive an d d elay - sen sit iv e t r aff ic) , and im pr oved loss ch aract er ist ics.
About the Technical Reviewers
Ja son Corn et t is a cust om er su ppor t en gineer at Cisco Sy st ems, w h er e he is a t echnical leader
for t he LAN Sw it ching t eam in Resear ch Tr iangle Par k . Jason joined Cisco in 199 9 an d h as a t ot al of fiv e y ear s of n et wor k ing ex per ien ce. He holds a diplom a in bu siness t echnology in for m at ion
- Table of Content s
com mu nicat ion s syst em s fr om St . Law r en ce Colleg e. Prev iously Jason w as a net w or k su ppor t
I ndex • specialist w it h a n et wor k m anag em ent comp any .
Ci sco Ca t al yst QoS: Q ual i ty of Se r vi ce in Ca m pus Ne tw or k s By , ,
Mik e Flan nagan CCI E® No. 7651 Richar d Froom CCIE No. 5102 La ur en L. D ygow sk i, CCI E N o. 7 0 6 8 , is a sen ior net w ork en gineer at a maj or f inancial Kevin Tur ek CCI E No. 7284
inst it ut ion and has mor e t han eigh t y ear s of net w ork ing exp er ience. He holds a bachelor of science degr ee in com p ut er science f rom Tex as Tech Univ er sit y and a M. S.B. A. f r om Bost on
Pub lish er: Cisco Press
Univer sit y. Prev iou sly , Laur en w as a net w or k m anager w it h t he Unit ed St at es Mar ine Cor ps and
Pub Dat e: Ju ne 06, 2 00 3 MCI . He resides w it h h is w ife and t h ree sons in Ch ar lot t e, Nort h Car olina.
I SBN: 1- 58 705 -1 20 -6
Ba la j i Si va subr am a ni an is par t of t h e Techn ical Assist ance Cent er ( TAC) based out of Resear ch
Pages: 43 2
Tr iangle Par k , w her e he act s as t he w or ldw ide subj ect m at t er exp er t in LAN t ech nologies. He has been w it h Cisco TAC for mor e t h an t hr ee year s. He has au t hor ed an d r ev iew ed m an y t ech nical w hit e p apers on Cisco.com in t h e LAN t echn olog ies ar ea. He h as been a pr esent er / m oderat or of t he Techn ical Vir t u al Chalk Talk Sem inar s for Part ners. He h as act ively par t icipat ed in ear ly field t r ial t est ing of t he Cat aly st 4 000 / 450 0 plat for m ser ies. Balaji holds a m ast er of scien ce d eg r ee in En d- t o- end QoS deploy ment t ech niqu es f or Cisco Cat aly st ser ies sw it ches com put er eng in eer ing fr om t h e Un iver sit y of Arizona and hold s a b ach elor of scien ce d eg r ee in elect r ical en gineering .
Ex am ine v ar iou s QoS com pon en t s, including cong est ion m anagem en t , congest ion av oidance, shaping , policing/ ad mission cont r ol, sign alin g, link eff iciency m ech anisms, an d classificat ion and m ark ing Map specif ied class of ser vice ( CoS) v alu es t o v ar ious qu eu es and m ain t ain CoS v alues t hr ou gh t he u se of 8 02. 1q t ag ging on t he Cisco Cat alyst 290 0XL, 350 0XL and Cat aly st 40 00 and 29 48G/ 298 0G Cat OS Fam ily of Sw it ches Lear n about classificat ion an d rew r it e capabilit ies and queue schedu lin g on t h e Cisco Cat aly st 5 000 I m plem ent ACLs, ACPs, ACEs, an d low - lat ency qu eu in g on t h e Cisco Cat aly st 2 950 and 35 50 Fam ily of Sw it ches Under st and classif icat ion , policyin g, an d scheduling capab ilit ies of t he Cat alyst 400 0 and 45 00 I OS Fam ily of Sw it ches Con figu re QoS in bot h Hy br id an d Nat iv e m ode on t h e Cat aly st 65 00 Family of Sw it ches Ut ilize Layer 3 QoS t o classif y v ary ing levels of ser v ice w it h t h e Cat aly st 65 00 MSFC an d Flex w an Under st and how t o app ly QoS in camp us n et w or k designs by exam inin g end - t o- end case st udies
Qu alit y of ser vice ( QoS) is t he set of t echn iq ues designed t o m anag e net w or k r esour ces. QoS r ef ers t o t h e cap abilit y of a n et w or k t o pr ov id e bet t er serv ice t o select ed net w ork t raf fic ov er v ariou s LAN and WAN t echnologies. The p r im ar y goal of QoS is t o pr ov ide f low pr iorit y , in clud ing dedicat ed b andw idt h, cont r olled j it t er and lat ency ( r eq uired by som e int er act ive an d d elay - sen sit iv e t r aff ic) , and im pr oved loss ch aract er ist ics.
Acknowledgments
Richar d w ould lik e t o ack now ledge his co- aut h ors f or ask in g him t o wor k on t h is pr oject an d t heir eff or t s on t heir m at erial. Fur t her m ore, Rich ard w ould like t o ackn ow led ge Balaji Sivasu br aman ian f or his aid and ou t st an ding r eview s of t ech nical cont ent pert ain in g t o t h e
- Table of Content s Cat aly st 4 000 Family of sw it ches.