RE: lug-bg: Prenasochwane na trafik

[bkrosnov@xxxxxxxx (Boyan Krosnov)]

tehnicheski stoqt taka neshtata.... s malki dopylneniq.

Vseki modem se nastrojva da ogranichava trafika. V DOCSIS 1.0 moje da ogranichava skorostta na predavane i priemane na trafik. V DOCSIS 1.1 imash i klasove trafik, taka che moje na samiq modem da se nastroi da ti ogranichava primerno internet, peering i vytreshen trafik po razlichen nachin.

I downstreama i upstreama sa TDM, kojto se kontrolira ot CMTS-a. Ako CMTS-a go kontrolira nqma nikakyv shans kym edin modem da ima poweche trafik ot kolkoto mu se polaga. Nqma nikakyv shans edin modem da izlychva v time-slot kojto ne specialno zadelen lichno za nego.

Za da se "skalirat" podobni mreji se pravi segmentaciq na mrejata. Tipichnite otnosheniq na broj upstreams kym broj downstreams e 1/4 do 1/6. Obache vseki upstream moje idva ot razlichen "klon" ili nqkolko "klona" na optichno-mednata kabelna mreja. Syshtoto e i sys downstream-ite. Moje da imash edin downstream za cqlata mreja. Moje da imash i 10 otdelni downstrema razpredeleni po razlichni chasti na mrejata ti. Taka che problem s plytnostta na pokritieto ne syshtestvuva. Ako ima nujda moje da se postigne ogromna, ogromna plytnost na pokritieto, syotvetno ogromen sumaren kapacitet.

Ima si razni specifiki v prodavaneto na uslugi vyrhu takiva mreji, poradi tova che se namirat "inteligentni" useri koito si bazikat modemite. Ima si i resheniq po vyprosa. Na praktika pri dobre postroena kabelna i data mreja kabelniq operator moje da predostavq _garantiran_ kapacitet prez VPN ot tochka do tochka.

Za cenite: 1DOWN/1UP Routed mode CMTS sys vgraden upconvertor (kojto stava za startirane na usluga v malyk kabelen operator) ot Cisco struva okolo 14000 USD list price(!)
za 1DOWN/4UP syshtite parametri pak ot Cisco list price cenata e 23000USD
Pri po-golemite i plytni jeleza cenite sa okolo 30000 USD na downstrem pri otnoshenie 1/4 DS/US. tova list price.

Znaem che ima i drugi vendori (Juniper, ADC), ima i nachin za kupuvane na staro (e-bay, bratovched mi kojto jivee v USA).
You have the right to choose.

BR,
Boyan
-----Original Message-----
From: Peyo Hristov [mailto:netadmin@xxxxxx] 
Sent: Monday, February 24, 2003 9:03 AM
To: lug-bg@xxxxxxxxxxxxxxxxxx
Subject: Re: lug-bg: Prenasochwane na trafik

úÄÒÁ×ÅÊÔÅ.
íÎÏÇÏ ÒÑÄËÏ ÐÉÛÁ × ÌÉÓÔÁ É ÚÁÔÏ×Á ÓßÍ ÎÅÐÏÚÎÁÔ ÎÁ ÍÎÏÇÏ ÈÏÒÁ.
éÓËÁÍ ÄÁ ÓÅ ÏÂßÒÎÁ ËßÍ ×ÓÉÞËÉ, ËÏÉÔÏ ÉÍÁÔ ÐÒÏÂÌÅÍÉ Ó ËÁÂÅÌÎÉÑ éÎÔÅÒÎÅÔ,
ÄÏÓÔÁ×ÞÉË É ÍÏÄÅÍ.
ïÔÎÏÓÎÏ ÐÒÅÎÁÓÏÞ×ÁÎÅÔÏ ÎÁ ÔÒÁÆÉË. ëÁËÔÏ ×ÅÞÅ ÓÅ ÐÉÓÁ × ÐÒÅÄÉÛÎÏ ÓßÏÂÝÅÎÉÅ ÐÏ
ÔÅÍÁÔÁ, ÉÍÁ ÞÕÄÅÓÎÏ ÒÅÛÅÎÉÅ ÚÁ ÔÏ×Á. îÏ ÉÄÅÑÔÁ Å ÄÒÕÇÁ.
óÁÍÉÉÑÔ ÄÏÓÔÁ×ÞÉË ÎÉËÏÇÁ ÎÑÍÁ ÄÁ ÓÅ ÎÁ×ÉÅ ÎÁ ÔÁËß× ×ÁÒÉÁÎÔ ÚÁÝÏÔÏ:
1. îÏÓÅÝÁÔÁ ÓÒÅÄÁ × ÓÌÕÞÁÑ Å ËÏÁËÓÉÁÌÅÎ ËÁÂÅÌ. òÁÄÉÏ-ÞÅÓÔÏÔÎÁÔÁ ÉÎÔÅÒÆÅÊÓ
ÓÐÅÃÉÆÉËÁÃÉÑ DOCSIS 1.0, 1.1, 2.0(Data Over Cable System Interface
Specification) http://www.cablelabs.com ÄÅÆÉÎÉÒÁ ÉÚÐÏÌÚ×ÁÎÅÔÏ ÎÁ ÓÌÅÄÎÉÔÅ
ÔÉÐÏ×Å ÍÏÄÕÌÁÃÉÉ :
QPSK, 16QAM, 64QAM, 256QAM
ëÁÔÏ ÃÑÌÏ, ÓÈÅÍÁÔÁ ÎÁ ÍÒÅÖÁÔÁ ÉÚÇÌÅÊÄÁ ÐÏ ÓÌÅÄÎÉÑÔ ÎÁÞÉÎ:

ËÏÍÐÀÔßÒ->ËÁÂÅÌÅÎ ÍÏÄÅÍ->coax->CMTS(Cable modem termination system)->Inet
center->Internet

ÔÏ×Á ÎÁ ËÏÅÔÏ ÉÓËÁÍ ÄÁ ÏÂßÒÎÁ ×ÎÉÍÁÎÉÅ Å ÓÌÅÄÎÏÔÏ:
1. CMTS ÏÔÇÏ×ÁÒÑ ÚÁ ÏËÏÌÏ 1000 ÍÏÄÅÍÁ.
2. CMTS ÉÍÁ Ä×Á ÏÓÎÏ×ÎÉ ËÁÎÁÌÁ - Upstream(CM->CMTS) É Downstrem(CMTS->CM)
ÐÏ-ÐÒÏÓÔÏ ËÁÚÁÎÏ - ÐÒÅÚ Downstream ÍÉÎÁ×Á Download, ÐÒÅÚ Upstream - Upload.
3. DOWNSTREAM ËÁÎÁÌÁ ÏÂÉËÎÏ×ÅÎÏ Å ÓÁÍÏ ÅÄÉÎ. íÏÄÕÌÁÃÉÉÔÅ, ËÏÉÔÏ ÉÚÐÏÌÚ×Á ÓÁ
64QAM É 256QAM. íÁËÓÉÍÁÌÎÏÔÏ ËÏÌÉÞÅÓÔ×Ï ÉÎÆÏÒÍÁÃÉÑ, ËÏÑÔÏ ÔÏÚÉ ËÁÎÁÌ ÍÏÖÅ ÄÁ
ÐÒÅÄÁ×Á Å ÏËÏÌÏ 52Mbps. ïÂÝÏ ÚÁ ×ÓÉÞËÉ ÍÏÄÅÍÉ ÐÒÉ 256QAM.
4. Upstream ÒÁÂÏÔÉ Ó ÍÏÄÕÌÁÃÉÉ QPSK É 16QAM(ôÏ×Á ÓÁ ÔÅÏÒÉÔÉÞÎÏ 10Mbps max)
=> ×ÓÑËÁ ÄÏÐßÌÎÉÔÅÌÎÁ ÕÓÌÕÇÁ ÎÁ ÍÁÛÉÎÁ ÚÁÄ CMTS ÎÅÉÍÏ×ÅÒÎÏ Õ×ÅÌÉÞÁ×Á ÔÒÁÆÉËÁ
É ÓßÏÔ×ÅÔÎÏ ÉÚÄßÎ×Á ÔÒÁÆÉË ÐÏÌÉÔÉËÁÔÁ ÎÁ ÄÏÓÔÁ×ÞÉËÁ. äÁÖÅ ÔÒÁÆÉË ÍÏÄÅÍ-ÍÏÄÅÍ
ÎÁÔÏ×ÁÒ×Á É Ä×ÁÔÁ ËÁÎÁÌÁ., ÚÁÝÏÔÏ ×ÓÉÞËÏ ÍÉÎÁ×Á ÐÒÅÚ CMTS. îÁ ÄÏÓÔÁ×ÞÉËÁ ÍÕ
ÉÚÌÉÚÁ Ô×ßÒÄÅ ÓËßÐÏ ×ÓÅËÉ ÓÌÅÄ×ÁÝ CMTS ÓÁÍÏ ÄÁ ÏÓÉÇÕÒÉ ÄÏÐßÌÎÉÔÅÌÎÉ ÕÓÌÕÇÉ
Í/Õ ÁÂÏÎÁÔÉÔÅ(ÏËÏÌÏ $38000 ÚÁ CMTS).
5. óÁÍÁÔÁ ÓÈÅÍÁ ÎÁ ÉÎÉÃÉÁÌÉÚÁÃÉÑ ÎÁ ËÁÂÅÌÎÉÑÔ ÍÏÄÅÍ Å Ô×ßÒÄÅ ÓÌÏÖÎÁ. ôÑ
Á×ÔÏÍÁÔÉÞÎÏ ÐÒÁ×É ÚÁÄÁ×ÁÎÅÔÏ ÎÁ ÒÅÁÌÎÉ IP-ta ÎÁ ÍÏÄÅÍÉÔÅ Ô×ßÒÄÅ ÓÌÏÖÎÏ É
ÒÉÓËÏ×ÁÎÏ. óÈÅÍÁÔÁ Å ÓÌÅÄÎÁÔÁ:
.....Upstream i Downstream ÞÅÓÔÏÔÉ ->ïÐÒÅÄÅÌÑÎÁ ÎÁ ÐÁÒÁÍÅÔÒÉÔÅ
- õÓÔÁÎÏ×Ñ×ÁÎÅ ÎÁ IP ×ÒßÚËÁ(íÏÄÅÍÁ ÐÏÌÕÞÁ×Á IP ÐÒÅÚ DHCP úáäÿìöéôåìîï)
- õÓÔÁÎÏ×Ñ×ÁÎÅ ÐÁÒÁÍÅÔÒÉÔÅ ÎÁ ÍÏÄÅÍÁ(÷ DHCP Å ÕËÁÚÁÎ ÆÁÊÌ, ËÏÊÔÏ ÍÏÄÅÍÁ
ÔÒÑÂ×Á ÄÁ ÉÚÔÅÇÌÉ ÏÔ TFTP ÓßÒ×ßÒ. ôÏÚÉ ÆÁÊÌ Å md5 ËÒÉÐÔÉÒÁÎ. ÷ ÎÅÇÏ Å
ÉÎÆÏÒÍÁÃÉÑÔÁ ÚÁ Upstream i Downstream ÞÅÓÔÏÔÉ, ËÏÉÔÏ ÄÁ ÉÚÐÏÌÚ×Á ÐÒÉ
ÓÌÅÄ×ÁÝÏ ×ÒßÚ×ÁÎÅ, ÍÉÎ. ÇÁÒÁÎÔÉÒÁÎÁ É ÍÁËÓÉÍÁÌÎÁ ÓËÏÒÏÓÔ, ËÏÑÔÏ Å ÒÁÚÒÅÛÅÎÁ
ÎÁ ÍÏÄÅÍÁ, ÐÁÒÁÍÅÔÒÉ ÚÁ ËÒÉÐÔÉÒÁÎÅ ÎÁ ×ÒßÚËÁÔÁ, ×ÅÒÓÉÑ ÎÁ DOCSIS, ËÏÑÔÏ ÓÅ
ÉÚÐÏÌÚ×Á, SNMP ÎÁÓÔÒÏÊËÉ ÎÁ ÍÏÄÅÍÁ É ÍÎÏÇÏ ÄÒÕÇÉ ÒÁÂÏÔÉ.)
ôÏÚÉ ÆÁÊÌ(ÁËÏ Å ÄÏÂÒÅ ÎÁÐÒÁ×ÅÎ) Å ÕÎÉËÁÌÅÎ ÚÁ ×ÓÅËÉ ÍÏÄÅÌ ÍÏÄÅÍÉ.
þÁË ÓÌÅÄ ×ÓÉÞËÉÔÅ ÔÅÚÉ ÎÅÝÁ, ÉÄ×Á ÒÅÇÉÓÔÒÁÃÉÑÔÁ × CMTS..

é ÐÁË ÐÏ×ÔÁÒÑÍ. Downstream(1) i Upstream ËÁÎÁÌÉÔÅ(max 8 Upstreams) ÓÁ ÏÂÝÉ
ÚÁ ãñìáôá ÍÒÅÖÁ ÎÁ ÄÏÓÔÁ×ÞÉËÁ(ËÁÂÅÌÁÒËÁÔÁ).óËÏÒÏÓÔÉÔÅ ÓÁ ÏÂÝÉ ÚÁ ×ÓÉÞËÉ. Ô.Å
max 52 Mbps ÓÅ ÄÅÌÉ ÎÁ 1000 ÍÏÄÅÍÁ × ÏÂÝÉÑ ÓÌÕÞÁÊ. ôÒÁÆÉËÁ ÍÏÄÅÍ-ÍÏÄÅÍ
ÍÉÎÁ×Á ÚÁÄßÌÖÉÔÅÌÎÏ ÐÒÅÚ CMTS-Á. ôÅÚÉ ÎÅÝÁ, ÐÏÓÔÁ×ÑÔ ×ßÐÒÏÓÁ - ËÁË×Ï ÝÅ ÓÅ
ÓÌÕÞÉ, ÁËÏ ÅÄÉÎ ÍÏÄÅÍ ÔÅÇÌÉ ÆÉÌÍ ÏÔ ÄÒÕÇ ÍÏÄÅÍ? ïÔÇÏ×ÏÒÁ Å - ðÒÅÔÏ×ÁÒ×ÁÎÅ ÎÁ
CMTS, ×ÌÏÛÁ×ÁÎÅ(ÄÁ ÎÅ ËÁÖÁ ÓÒÉ×) ÎÁ ×ÒßÚËÁÔÁ ÎÁ ×ÓÉÞËÉ ÁÂÏÎÁÔÉ.

ôÏÞÎÏ ÚÁÔÏ×Á ÓÅ ÚÁÂÒÁÎÑ×Á ÂÒÏÁÄËÁÓÔÁ , ËÏÊÔÏ ÉÚÐÏÌÚ×Á NetBIOS(over TCP/IP)
ÉÌÉ ÉÚ×ßÎ ÎÅÇÏ, ËÁËÔÏ É ÓÅÓÉÉÔÅ ÍÅÖÄÕ ÍÏÄÅÍÉÔÅ.
îÁÄÑ×ÁÍ ÓÅ ÎÅ ÓßÍ ×É ÏÔÅÇÞÉÌ, ÉÍÁ ÏÝÅ ÍÎÏÇÏ ÄÁ ÓÅ ËÁÖÅ ÚÁ ÔÅÚÉ ÒÁÂÏÔÉ É ÎÁ
ÍÅÓÔÁ ÄÁ ÎÅ ÓßÍ ÍÎÏÇÏ ÑÓÅÎ, ÎÏ ÍÉÓÌÑ ÞÅ ÂÅÛÅ ÎÅÏÂÈÏÄÉÍÏ. ëÁÂÅÌÎÉÔÅ ÏÐÅÒÁÔÏÒÉ
ÒÅ×ÎÉ×Ï ÐÁÚÑÔ ÍÎÏÇÏ ÐÏÄÒÏÂÎÏÓÔÉ ÐÏ ÔÅÍÁÔÁ, ÚÁÔÏ×Á ÒÅÛÉÈ ÄÁ ÉÚÑÓÎÑ ÎÑËÏÊ
ÎÅÝÁ.
ôÁ ÚÎÁÞÉ ÔÏ×Á ÂÅÛÅ ÐÏ ÔÅÍÁÔÁ "úÁÝÏ ÎÅ ÄÁ×ÁÔ ÒÅÁÌÎÏ IP É ÚÁÝÏ ÎÑÍÁ ÄÁ
ÐÏÚ×ÏÌÑÔ ÐÒÅÎÁÓÏÞ×ÁÎÅ".

----- Original Message -----
From: "Peter An. Zyumbilev" <bivol@xxxxxxxxx>
To: <lug-bg@xxxxxxxxxxxxxxxxxx>
Sent: Monday, February 24, 2003 10:28 AM
Subject: RE: lug-bg: Prenasochwane na trafik

> zonedit.com,no-ip.com,dyndns.org
>
> Peter An. Zyumbilev
> Web Developer & Administrator
> BIVOL BULGARIA
> email: bivol@xxxxxxxxx <mailto:bivol@xxxxxxxxx>
> tel.:+359 88 966940
> web: http://www.bivol.net <http://www.bivol.net>
>
>
>
> > -----Original Message-----
> > From: owner-lug-bg@xxxxxxxxxxxxxxxxxx
> > [mailto:owner-lug-bg@xxxxxxxxxxxxxxxxxx]On Behalf Of Boyan Krosnov
> > Sent: Sunday, February 23, 2003 11:52 PM
> > To: lug-bg@xxxxxxxxxxxxxxxxxx
> > Subject: RE: lug-bg: Prenasochwane na trafik
> >
> >
> > instaliraj si socks5 server na vynshniq server.
> > taka mojesh da si napravish "iznesen" tcp/ip stek na mashinata na
> > koqto e servera.
> > sled tova shte trqbwa da prekompilirash ftp servera da raboti s
> > izneseniq tcp/ip stek prez socks protokola vmesto da si govori s
> > lokalniq tcp/ip stek.
> > ima edna bibliotechka libsocks. Twyrdenieto e che mojesh i bez da
> > prekompilirash da postignesh efekta kato PRELOAD-vash
> > bibliotekata v environmenta v kojto se startira prilojenieto.
> > prilojenieto si misli che otvarq da slusha na port a libsocks
> > shte obqsnqva na socks servera da vyrshi rabotata vmesto lokalniq
> > stek. Tova obache ne sym go probval.
> >
> > mojesh da napravish i po drug nachin.
> > tcp konekciq vyrhu neq ppp mejdu twoeto pc i mashinata na koqto
> > imash shell vyrhu ppp-to veche mojesh da si tyrkalqsh kakvoto iskash.
> > mojesh da postignesh syshtiq efekt sys ppp vyrhu ssh ili drug
> > tunelen mehanizym
> > v naj-loshiq sluchaj razgledaj
> > http://www.nocrew.org/software/httptunnel.html ako tova ne mine
> > prez dostavchika ti nqma kakvo drugo :)
> >
> > Boyan Krosnov, CCIE#8701
> > http://boyan.ludost.net/
> > just another techie speaking for himself
> >
> >
> >
> > -----Original Message-----
> > From: áÔÁÎÁÓ íÁ×ÒÏ× [mailto:bugar@xxxxxxx]
> > Sent: Sunday, February 23, 2003 11:15 PM
> > To: lug-bg@xxxxxxxxxxxxxxxxxx
> > Subject: lug-bg: Prenasochwane na trafik
> >
> >
> > úÄÒÁ×ÅÊÔÅ,
> > ÚÎÁÞÉ ÉÍÁÍ ÓÌÅÄÎÏÔÏ ÐÏÌÏÖÅÎÉÅ:
> > äÏÓÔÁ×ÞÉË ÎÁ ÉÎÔÅÒÎÅÔ /ËÁÂÅÌÅÎ/, ËÏÊÔÏ ÏÂÁÞÅ ÏÔËÁÚ×Á ÄÁ ÄÁÄÅ ÒÅÁÌÎ
> > Ï IP, ÎÉÔÏ
> > ÄÁ ÐÒÅÎÁÓÏÞÉ ÎÑËÏÊ ÐÏÒÔ ËßÍ ÍÏÑ ËÏÍÐÀÔßÒ ÚÁ ÄÁ ÓÅ "×ÉÖÄÁ" ÏÔ ×ßÎ,
> > Á É ×ÓÉÞËÉÑ
> > ÔÒÁÆÉË ÍÉÎÁ×Á ÐÒÅÚ ÐÒÏÚÒÁÞÎÏ ÐÒÏËÓÉ. ëÁËÔÏ É ÄÁ Å ×ßÐÒÏÓßÔ Å ÍÏÇÁ ÌÉ ÐÏ
> > ÎÑËÁËß× ÎÁÞÉÎ ÄÁ ÎÁÐÒÁ×Ñ ÔÁËÁ, ÞÅ ÏÔ ×ßÎ ÄÁ ÉÍÁ ÄÏÓÔßÐ ÄÏ ÍÏÑ ËÏÍÐÀÔßÒ
> > /ÐÒÉÍÅÒÎÏ ÄÏ ftp/. éÄÅÑÔÁ ÍÉ Å /ÎÏ ÎÅ ÚÎÁÍ ÉÚÏÂÝÏ ÄÁÌÉ ÌÏÇÉËÁÔÁ É
> > Å ×ÑÒÎÁ/,
> > ÁËÏ ÓÅ ÎÁÐÒÁ×É ÎÁ ×ßÎÛÎÁ ÚÁ ÍÒÅÖÁÔÁ ÍÁÛÉÎÁ "ÐÒÉÌÏÖÅÎÉÅ" /ÐÒÉÍÅÒÎÏ
> > ÎÑËÏÊ free
> > web ÉÌÉ free shell/, É ÐÒÅÚ ÏÐÒÅÄÅÌÅÎ ÉÎÔÅÒ×ÁÌ ÏÔ ×ÒÅÍÅ ÍÏÑ ËÏÍÐÀÔßÒ
> > ÐÒÏ×ÅÒÑ×Á ÉÍÁ ÌÉ ÚÁÑ×ËÁ ËßÍ "ÐÒÉÌÏÖÅÎÉÅÔÏ" É ÓÅ ÐÒÅÎÁÓÏÞÉ ÔÒÁÆÉËÁ
> > ÔÁËÁ, ÓÑËÁÛ
> > ÍÏÑ ËÏÍÐÀÔßÒ Å ËÌÉÅÎÔ. îÅ ÚÎÁÍ ÄÁÌÉ ÉÚÏÂÝÏ ÍÏÖÅ ÄÁ ÓÅ ÎÁÐÒÁ×É ÎÅÝÏ
> >  ÔÁËÏ×Á É
> > ÁËÏ ÍÏÖÅ ËÁË. áËÏ ÎÑËÏÊ ÉÍÁ ÉÄÅÑ ÝÅ ÓßÍ ÍÕ ÂÌÁÇÏÄÁÒÅÎ ÄÁ Ñ ÓÐÏÄÅÌÉ
> > :-).
> > ==================================================================
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