Ethernet over SDH/SONET

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Ddtltybt d Ethernet over SDH/SONET
Ethernet over SDH/SONET
"rcgjytywbfkmysq hjcn rjhgjhfnbdyjuj nhfabrf
Bynthytn b nhfabrf vt;jabcys[ ghbkj;tybq yf
jcyjdt ghjnjrjkf Ethernet> nfrb[ rfr bynhfctnb>
'ktrnhjyyfz gjxnf> rjhgjhfnbdyfz IP-ntktajybz b
cbcntvs dbltjrjyathtywbq> cnfdbn yjdst ytghjcnst
pflfxb gthtl gjcnfdobrfvb ctntds[ eckeu> jgthfnjhfvb
ujhjlcrb[ b ukj,fkmys[ ctntq. C lheujq cnjhjys> ctnb
gthtlfxb lfyys[ gjrf tot yt j,tcgtxbdf/n
'aatrnbdyjq gthtlfxb nhfabrf nhflbwbjyyjq
ntktajybb bkb cbcntv dbltjdtofybz d htfkmyjv
dhtvtyb. Rhjvt njuj> ytlfdybq cgfl d
ntktrjvveybrfwbjyyjq bylecnhbb crfpfkcz yf hfpdbnbb
byntuhbhjdfyys[ cbcntv ljcnegf c gjllth;rjq ujkjcf b
lfyys[ - rfr yf jcyjdt DSL> nfr b yf jcyjdt
Gigabit Ethernet.
D ,jkmibycndt ckexftd jgthfnjhs ghjljk;f/n jgbhfnmcz yf cdj/
hfpdbne/ byahfcnhernehe SDH#SONET lkz gthtlfxb nhfabrf d
ghtltkf[ ujhjlcrb[ ctntq !metropolitan area network> MAN@. Ctnb
SDH#SONET j,kflf/n hzljv ,tccgjhys[ ljcnjbycnd% rj'aabwbtyn
ujnjdyjcnb lj 99.999fi& ghfrnbxtcrb gjdctvtcnysq j[dfn d ghtltkf[
vtufgjkbcjd b d ukj,fkmyjv vfcinf,t& jgnbvfkmyst [fhfrnthbcnbrb
lkz gthtlfxb ujkjcf b nhfabrf ceotcnde/ob[ rhbnbxtcrb df;ys[
ghbkj;tybq. Gj 'njq ghbxbyt vyjubt jgthfnjhs cdzpb ghbkfuf/n
ecbkbz r njve> xnj,s bcgjkmpjdfnm cdj/ byahfcnhernehe SDH#SONET
lkz ghjphfxyjq gthtlfxb nhfabrf KDC b ljcnegf r ctnzv
gjcnfdobrjd eckeu.
Ghjphfxyfz gthtlfxf nhfabrf KDC
Rjytxyst gjkmpjdfntkb ye;lf/ncz d ghjcnjv> ytljhjujv htitybb
lkz gthtlfxb rjhgjhfnbdys[ lfyys[ b nhfabrf KDC vt;le
hfpkbxysvb vtcnysvb b htubjyfkmysvb jabcfvb gjchtlcndjv
dscjrjcrjhjcnyjq ctnb. Jgnbvfkmysv ds[jljv lkz yb[ ,skj ,s
j,tcgtxbnm hf,jne dct[ KDC rfr tlbyjq kjrfkmyjq ctnb> yfkj;tyyjq
ghjphfxysv j,hfpjv yf ctnm jgthfnjhf cdzpb b bp,fdktyyjq jn
ckj;yjcnb b ljhjujdbpys ukj,fkmys[ ctntq. Njxyj nfr ;t b
jgthfnjhs cdzpb pfbynthtcjdfys d gjcnhjtybb nfrb[ $ukj,fkmys[$
KDC yf jcyjdt cdjtq ceotcnde/otq jgnjdjkjrjyyjq b rjfrcbfkmyjq
byahfcnhernehs T1#N1> T3#N3 b STM-1#OC-3.
112
RAD
Data Communications
Ljcneg r ctnzv gjcnfdobrjd eckeu
Gjcnfdobrb eckeu Bynthytn !ISP@ b eckeu ghbkj;tybq !ASP@ ljk;ys
eljdktndjhznm nht,jdfybz cdjb[ rjhgjhfnbdys[ rkbtynjd gj
ekexityb/ j,cke;bdfybz b gjdsityb/ crjhjcnb ljcnegf d Bynthytn.
:tcnrfz rjyrehtywbz d 'njq j,kfcnb pfcnfdkztn b[ ,jktt fuhtccbdyj
dytlhznm yjdst gfrtns eckeu b hfcibhznm nthhbnjhbfkmysq j[dfn
cdjb[ ctntq. D nj ;t dhtvz hflb cyb;tybz 'rcgkefnfwbjyys[
hfc[jljd b gjdsitybz ghb,skmyjcnb> ISP b ASP dsye;ltys d
djphfcnf/otq cntgtyb djpkfufnm gthtlfxe nhfabrf cdjb[ rkbtynjd yf
cbcntvs ljcnegf b jgjhyst ctnb> ghbyflkt;fobt lheubv jgthfnjhfv
cdzpb. Dj vyjub[ ckexfz[ 'nb ctnb bcgjkmpe/n nt[yjkjub/
SDH#SONET. Fyfkjubxyfz cbnefwbz yf,k/lftncz b d rhegys[
rjhgjhfwbz[> ghtljcnfdkz/ob[ eckeub gthtlfxb lfyys[ cdjbv
abkbfkfv.
Pflfxf jgthfnjhjd ctntq SDH#SONET cjcnjbn d njv> xnj,s
j,tcgtxbnm gthtlfxe 'nb[ cgtwbfkbpbhjdfyys[ nbgjd lfyys[> d njv
xbckt cdjb[ cj,cndtyys[ lfyys[ vt;le epkfvb ljcnegf b
[hfybkbofvb lfyys[> ,tp gjcnhjtybz jnltkmyjq nhfycgjhnyjq
ctnb Ethernet.
Ghtj,hfpjdfybt vt;le Ethernet b SDH#SONET
Yfb,jktt ghjcnjt b 'rjyjvbxyjt htitybt lkz gthtlfxb nhfabrf
Ethernet gj nhfycgjhnyjq ctnb SDH#SONET cjcnjbn d bcgjkmpjdfybb
rjvgfrnys[ ghtj,hfpjdfntktq bynthatqcjd. "nb ytljhjubt b
ghjcnst ecnhjqcndf j,tcgtxbdf/n cjtlbytybt vt;le KDC b ctnm/
ljcnegf> d njv xbckt c bcgjkmpjdfybtv dsltktyys[ kbybq. RAD
ghtlkfuftn gjkysq yf,jh ghtj,hfpjdfntktq 10#100BaseT
Ethernet-to-SDH#SONET> jn T1#N1 lj T3#N3 b STM-1#OC-3.
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Ethernet over SDH/SONET
RIC-155
NE
W
8
Ghtj,hfpjdfntkm Fast Ethernet over STM-1#OC-3
10#100BaseT gj rfyfkfv STM-1#OC-3
• "rjyjvbxyfz fkmnthyfnbdf htitybzv yf
jcyjdt FNV bkb vfhihenbpfnjhjd
• Vfrcbvfkmyjt bcgjkmpjdfybt
rjyntqythjd SDH#SONET lkz gthtlfxb
nhfabrf Ethernet
• SNMP-eghfdktybt in-band
• Gjllth;rf d[jlzob[#bc[jlzob[
cjtlbytybq lkz eghfdktybz out-of-band
• Gjlrk/xtybt r ctnb Ethernet%
– Gjhns 10#100BaseT
– Gjllth;rf cnfylfhnjd IEEE 802.3u>
802.3x> 802.1p
– Vjcn c gjllth;rjq DKDC
RIC-155
Ethernet over SDH/SONET
• Gjlrk/xtybt kjrfkmys[ ctntq
• Gjlrk/xtybt r ctnb SDH#SONET%
– STM-1#OC-3
– Packet over SDH#SONET
d cjjndtncndbb cj cgtwbabrfwbtq
IETF RFC 2615
– Ibhjrbq ds,jh jgnbxtcrb[ b
'ktrnhbxtcrb[ bynthatqcjd
RIC-155 - ghtj,hfpjdfntkm> j,tcgtxbdf/obq
ghjcnjt> 'aatrnbdyjt b ytljhjujt htitybt
lkz gthtlfxb nhfabrf Fast Ethernet gj rfyfkfv
STM-1#OC-3. Nhfabr Fast Ethernet
byrfgcekbhetncz d ytcnhernehbhjdfyyst
rfyfks STM-1#OC-3> xnj gjpdjkztn gjkyjcnm/
bcgjkmpjdfnm gjktpye/ gjkjce ghjgecrfybz
ctnb SDH#SONET.
Eybrfkmyst djpvj;yjcnb lfyyjuj ghjlernf
ltkf/n tuj bltfkmysv htitybtv lkz nfrb[
ghbkj;tybq> rfr%
– j,(tlbytybt ctntq rhegys[ ghtlghbznbq
gjchtlcndjv SDH#SONET
– gthtlfxf nhfabrf Fast Ethernet gj
hflbjrfyfkfv 155 V,bn#c
– pfvtyf ljhjujcnjzob[ bynthatqcjd
STM-1#OC-3 lkz vfhihenbpfnjhjd
– gthtlfxf IP-nhfabrf vt;le epkfvb ljcnegf
b wtynhfkmysvb epkfvb cdzpb
– ghtljcnfdktybt eckeu gthtlfxb lfyys[ lkz
jabcys[ plfybq !MTU@
Htitybt yf jcyjdt Ethernet yfvyjuj
'rjyjvbxytt> xtv yf jcyjdt IP bkb ATM>
gjcrjkmre fggfhfnehf Ethernet ghjot> f
'ktrnhjyyst rjvgjytyns lkz ytt - ltitdkt.
Rhjvt njuj> ctnm Ethernet yfvyjuj ghjot d
'rcgkefnfwbb> xtv IP bkb ATM> xnj 'rjyjvbn
hf,jxtt dhtvz cjnhelybrjd b ltyt;yst
hfc[jls IT-jnltkjd ghtlghbznbq.
POP/Corporate Branch
10/100BT
LAN
switch
POP/HQ
STM-1/
OC-3
SDH/
SONET
RIC-155
Ghjnjrjk byrfgcekzwbb gfrtnjd Ethernet d
rjyntqyths SONET> bcgjkmpetvsq RIC-155>
j,tcgtxbdftn ghfrnbxtcrb gjkyjt
bcgjkmpjdfybt gjktpyjq yfuheprb
SDH#SONET> gjcrjkmre r lfyysv lj,fdkztncz
kbim yt,jkmijq pfujkjdjr.
Eghfdktybt ecnhjqcndjv jceotcndkztncz
in-band ghb gjvjob cbcntvs RADview yf
jcyjdt SNMP. Jyf j,tcgtxbdftn
eght;lf/ott eghfdktybt ctnm/ lkz
ekexitybz j,cke;bdfybz rkbtynjd b
cyb;tybz 'rcgkefnfwbjyys[ hfc[jljd.
STM-1/
OC-3
10/100BT
RIC-155
LAN
switch
eckeu - j,tcgtxbdfnm ,tpjgfcyjcnm
gjkmpjdfntkmcrb[ lfyys[. Eghfdktybt
gjnjrjv b vtnjl $j,hfnyjuj lfdktybz$
htfkbpjdfys d cjjndtncndbb cj cnfylfhnjv
802.3x.
Lkz cjtlbytybz c fggfhfnehjq STM-1#OC-3
vj;tn bcgjkmpjdfnmcz rjfrcbfkmysq
'ktrnhbxtcrbq bynthatqc bkb ibhjrbq
fccjhnbvtyn jgnbxtcrb[ bynthatqcjd.
Ecnhjqcndj hf,jnftn d ht;bvt vjcnf c
gjllth;rjq DKDC> xnj gjpdjkztn
rjhgjhfnbdysv gjkmpjdfntkzv cj[hfyznm
ctuvtynfwb/ cdjb[ ctntq> f gjcnfdobrfv
RAD
Data Communications
113
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Ethernet over SDH/SONET
RIC-E3/ETH, RIC-T3/ETH
Ghtj,hfpjdfntkb bynthatqcjd 10#100BaseT d E3/T3
• J,(tlbytybt kjrfkmys[ ctntq Ethernet
10#100BaseT gj ytcnhernehbhjdfyysv
rfyfkfv T3#N3
• Dcnhjtyysq vjcn c gjllth;rjq
dbhnefkmys[ kjrfkmys[ ctntq
• Eghfdktybt uheggjdjq b
ibhjrjdtofntkmyjq IP-hfccskrjq d
ukj,fkmye/ ctnm
• Gjlrk/xtybt r kjrfkmyjq ctnb d
ht;bvt plug-and-play
Ghtj,hfpjdfntkb bynthatqcjd RIC-E3/ETH b
RIC-T3/ETH ghtlcnfdkz/n ghjcnjt b
ytljhjujt htitybt lkz cjghz;tybz rfyfkjd
T3#N3 c kjrfkmysvb ctnzvb 10#100BaseT.
Lfyyst ecnhjqcndf zdkz/ncz 'aatrnbdyjq
fkmnthyfnbdjq ljhjujcnjzobv bynthatqcfv
T3#N3-Ethernet vfhihenbpfnjhjd. Jyb
gjpdjkz/n vfrcbvfkmyj gjkyj bcgjkmpjdfnm
ghjgecrye/ cgjcj,yjcnm rfyfkjd T3#N3 b
bp,t;fnm ,jkmib[ yfrkflys[ hfc[jljd>
ghbceob[ nt[yjkjubb FNV. RIC-E3/ETH b
RIC-T3/ETH jcyfotys dcnhjtyysv vjcnjv c
gjllth;rjq dbhnefkmys[ kjrfkmys[ ctntq yf
crjhjcnz[ Ethernet#Fast Ethernet. "nj gjpdjkztn
ytgjchtlcndtyyj cjtlbyznm elfktyyst
kjrfkmyst ctnb !yfghbvth> d rfvgecys[
htitybz[@.
Bynthatqc Ethernet dsgjkyztn abkmnhfwb/ b
gthtcskre rflhjd cj crjhjcnm/> hfdyjq
ntjhtnbxtcrjve ghtltke crjhjcnb ctnb
Fast Ethernet - 150 nsc. gfrtnjd#c> yt dyjcz
pflth;tr d hf,jne kjrfkmyjq ctnb.
RIC-E3/ETH b RIC-T3/ETH gthtlf/n nhfabr
kjrfkmyjq ctnb Ethernet#IP gj ctnzv
SDH/SONET yf gjkyjq crjhjcnb rfyfkf T3#N3.
Gjkmpjdfntkm vj;tn hfphtibnm bkb pfghtnbnm
ibhjrjdtofntkmye/ hfccskre b uheggjde/
IP-hfccskre d ukj,fkmye/ ctnm lkz gjdsitybz
'aatrnbdyjcnb hf,jns ctnb.
Ghtj,hfpjdfntkb RIC-E3/ETH b RIC-T3/ETH
vjuen ghbvtyznmcz lkz gjlrk/xtybz
dscjrjghjbpdjlbntkmys[ vfhihenbpfnjhjd r
ctnb gjcnfdobrf eckeu Bynthytn gj rfyfkfv
T3#N3. C b[ gjvjom/ jgthfnjh vj;tn
bcgjkmpjdfnm lkz 'njq wtkb ytljhjujq gjhn
vfhihenbpfnjhf 10#100BaseT dvtcnj
ljhjujcnjzotuj bynthatqcf T3.
Ghtj,hfpjdfntkb gjllth;bdf/n
fdnjvfnbxtcrbq ds,jh crjhjcnb b ht;bvf
gthtlfxb> xnj gjpdjkztn gjlrk/xfnm tuj c
ctnzv Ethernet d ht;bvt plug-and-play ,tp
ljgjkybntkmyjuj rjyabuehbhjdfybz.
RIC-E3/ETH b RIC-T3/ETH dsgecrf/ncz d dblt
fdnjyjvys[ ecnhjqcnd.
114
RAD
Data Communications
Site A
Site B
E3/T3
SDH/
SONET
E3/T3
RIC-E3/ETH or
RIC-T3/ETH
RIC-E3/ETH or
RIC-T3/ETH
Logical connection of remote LANs
Site A
Site B
Wireless E3/T3
SDH/
SONET
E3/T3
E3/T3
RIC-E3/ETH or
RIC-T3/ETH
RIC-E3/ETH or
RIC-T3/ETH
Connecting LANs over wireless E3/T3 link
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Ethernet over SDH/SONET
RIC-E1, RIC-T1
8
Ghtj,hfpjdfntkb T1 bkb N1
Remote Site
Central Office/POP
Remote Site
10/100BT
IP
Network
Router
• Crjhjcnm gthtlfxb lfyys[ 2.048 V,bn#c
lkz T1 b 1.544 V,bn#c lkz N1
• Dsgecrf/ncz d dblt fdnjyjvys[
ecnhjqcnd bkb gkfn lkz cnjqrb
ASM-MN-214
• Cby[hjybpfwbz jn ghbybvftvjuj
cbuyfkf> jn dyenhtyytuj bkb dytiytuj
bcnjxybrf
• Ghjdthrb gj iktqae cjukfcyj V.54
• Gbnfybt jn ctnb gjcnjzyyjuj bkb
gthtvtyyjuj njrf
Ecnhjqcndf RIC-E1 b RIC-T1 j,tcgtxbdf/n
ghtj,hfpjdfybt vt;le bynthatqcfvb T1 b N1
b cnfylfhnysvb bynthatqcfvb lfyys[. Jyb
ghtj,hfpe/n gjnjrb ITU-T G.703 E1
!2.048 V,bn#c@ b T1 !1.544 V,bn#c@ d nhfabr
V.35> X.21> V.36> RS-530> vjcnf Fast Ethernet
bkb Ethernet> bkb IP-vfhihenbpfnjhf.
Router
V.35
SDH/
SONET
E1/T1
ASM-MN-214
with RIC-E1R
or RIC-T1R
ADM
Ghb ecnfyjdrt bynthatqcf Ethernet ecnhjqcndf
RIC-E1 bkb RIC-T1 j,tcgtxbdf/n ghjphfxyjt
cjtlbytybt vt;le elfktyysvb KDC b DKDC
gjchtlcndjv ytcnhernehbhjdfyys[ rfyfkjd
T1#N1 b gjkyjcnm/ bcgjkmpe/n ghjgecrye/
cgjcj,yjcnm 'nb[ rfyfkjd. Ghb ecnfyjdrt
vfhihenbpbhe/otuj bynthatqcf RIC-E1 b
RIC-T1 hf,jnf/n rfr j,sxysq
IP-vfhihenbpfnjh. Vjlekmyfz rjycnherwbz
ecnhjqcnd gjpdjkztn kturj ecnfyfdkbdfnm
k/,jq bp dsitegjvzyens[ bynthatqcjd.
Ecnhjqcndf RIC-E1 b RIC-T1 hf,jnf/n d
gjkyjlegktrcyjv ht;bvt cj crjhjcnm/ 2.048
bkb 1.544 V,bn#c> cjjndtncndtyyj> b
j,tcgtxbdf/n cjtlbytybt c lheubv
j,jheljdfybtv G.703 yf hfccnjzybb lj 300 v.
Jyb gjllth;bdf/n jlye ghjdthre gj iktqae
cjukfcyj cnfylfhne ITU V.54 - kjrfkmysq
fyfkjujdsq iktqa !LLB@. Ghjdthrf
bybwbbhetncz ghb gjvjob kb,j bynthatqcf
E1/T1
ADM
10/100BT
Switch
RIC-E1 or
RIC-T1
Remote Site
V.35
Router
RIC-E1 or
RIC-T1
DTE> kb,j gthtvsxrb yf gkfnt
ecnhjqcndf.
Cby[hjybpfwbz RIC-E1 b RIC-T1 vj;tn
jceotcndkznmcz jn ghbybvftvjuj
cbuyfkf> jn dyenhtyytuj utythfnjhf
bkb jn dytiytuj bcnjxybrf !lheujq
fggfhfnehs G.703@.
J,f ecnhjqcndf dsgecrf/ncz rfr d
dblt fdnjyjvys[ vjltktq d
j,ktuxtyys[ rjhgecf[> nfr b d dblt gkfn lkz
cnjqrb ASM-MN-214. D jlye cnjqre
ASM-MN-214 vj;tn ,snm ecnfyjdktyj lj 14
gkfn> d njv xbckt k/,jt nht,etvjt cjxtnfybt
hfpyjnbgys[ ghtj,hfpjdfntktq. Gkfns
gjllth;bdf/n $ujhzxe/ pfvtye$.
SPD-703-1
RIC-E3/ETH, RIC-T3/ETH • RIC-E1, RIC-T1 • SPD-703-1
X.21> V.36> RS-530> vjcnf Ethernet#
Fast Ethernet bkb IP-vfhihenbpfnjhf d
ytcnhernehbhjdfyysq gjnjr T1 bkb N1
RIC-E1 or
RIC-T1
Ethernet over SDH/SONET
10/100BT
• Ghtj,hfpjdfybt nhfabrf gjhnjd V.35>
Ghtj,hfpjdfntkm crjhjcnb gthtlfxb b cjyfghfdktyyjuj bynthatqcf G.703
• Ghtj,hfpjdfybt vt;le bynthatqcjv
G.703 !64 R,bn#c@ b bynthatqcfvb
V.35, V.36 (RS-422), RS-530, X.21 bkb
10BaseT Ethernet
V.35
• Dcnhjtyysq vjcn Ethernet
• Ds,jh crjhjcnb gthtlfxb lfyys[%
48> 56 bkb 64 R,bn#c
Router
V.35
SPD-703-1
G.703
codirectional
64 kbps
SPD-703-1
Router
• Ds,jh bcnjxybrf nfrnjds[ bvgekmcjd
gthtlfdftvjuj cbuyfkf
PCM
Network
• Fyfkjujdst b wbahjdst ghjdthrb
gj iktqae
• Ghtj,hfpjdfybt crjhjcnb gthtlfxb
56 R,bn#c d 64 R,bn#c
cjjndtncndetn V.110
Ghtj,hfpjdfntkm crjhjcnb gthtlfxb
b bynthatqcf SPD-703-1 jceotcndkztn
ghtj,hfpjdfybt bynthatqcf G.703 d hfpkbxyst
bynthatqcs rfyfkjd gthtlfxb lfyys[.
SPD-703-1 ghtj,hfpetn cjyfghfdktyysq
bynthatqc G.703 64 R,bn/c d V.35, V.36/V.11,
Channel
bank
X.21/V.11, RS-530, V.24 bkb dcnhjtyysq vjcn
Ethernet.
Lfkmyjcnm ltqcndbz ghb hf,jnt jn
j,jheljdfybz G.703 d legktrcyjv ht;bvt cj
crjhjcnm/ gthtlfxb lfyys[ 64 R,bn#c
cjcnfdkztn 800 vtnhjd. Djpvj;yjcnb
lbfuyjcnbrb d SPD-703-1 drk/xf/n fyfkjujdst
b wbahjdst ghjdthrb gj iktqae cnfylfhnf
V.54> rjnjhst vjuen pfgecrfnmcz c gthtlytq
Channel
bank
gfytkb bkb jn eghfdkz/otuj cbuyfkf
bynthatqcf. Ecnhjqcndj cjlth;bn dcnhjtyysq
ntcn BER cnfylfhnf V.52, ghjbpdjlzobq
bpjkzwb/ jnrfpjd. Frnbdbpfwbz b rjynhjkm
jceotcndkz/ncz c gthtlytq gfytkb.
SPD-703-1 dsgecrftncz d jnltkmyjv
rjycnhernbdyjv bcgjkytybb bkb vj;tn
ecnfyfdkbdfnmcz d cnjqrt 19”. Ceotcndetn
dthcbz ddblt gkfns lkz cnjqrb ASM-MN-214.
RAD
Data Communications
115