x******n
发帖数: 9 | |
x******n
发帖数: 9 | 2
我的意思是这是两个什么机构（类似传输所什么的）
【在 x******n 的大作中提到】
: 谁知道这是什么的简称？RITT/CATRP
|
l*p
发帖数: 74 | 3 the research insttitute of telecommunicaitons & transmissions
CATRP? i only heard of CATT
【在 x******n 的大作中提到】
:
: 我的意思是这是两个什么机构（类似传输所什么的）
|
l****e
发帖数: 476 | 4 RITT 是传输所 for sure
CATRP 偶怀疑是规划院
【在 l*p 的大作中提到】
: the research insttitute of telecommunicaitons & transmissions
: CATRP? i only heard of CATT
|
x******n
发帖数: 9 | 5 CATRP
信息产业部电信研究院是 China Academy of Telecom.Research(就
是不知道那个P是什么)
【在 l****e 的大作中提到】
: RITT 是传输所 for sure
: CATRP 偶怀疑是规划院
|
l****e
发帖数: 476 | 6 China Academy of Telecom Research and Planning
for Gui1 Hua4 Yuan4
who can clear this for us?
【在 x******n 的大作中提到】
: CATRP
:
: 信息产业部电信研究院是 China Academy of Telecom.Research(就
: 是不知道那个P是什么)
|
s*****n
发帖数: 536 | 7 Chinese Academy of Tu Ren Party.:)
【在 l****e 的大作中提到】
: China Academy of Telecom Research and Planning
: for Gui1 Hua4 Yuan4
: who can clear this for us?
|
l****e
发帖数: 476 | 8 //kick
how is going recently? plan to go back China this summer?
【在 s*****n 的大作中提到】
: Chinese Academy of Tu Ren Party.:)
|
s*****n
发帖数: 536 | 9 NB---Not Bad.:) but NG too.
I don't know yet.
This semister I am kind'of busy--but still got time
to browsing here. As for watering...Sigh...no big
topic here.
【在 l****e 的大作中提到】
: //kick
: how is going recently? plan to go back China this summer?
|
l****e
发帖数: 476 | 10 you big pen, write some novel... :))
【在 s*****n 的大作中提到】
: NB---Not Bad.:) but NG too.
: I don't know yet.
: This semister I am kind'of busy--but still got time
: to browsing here. As for watering...Sigh...no big
: topic here.
|
|
|
s*****n
发帖数: 536 | 11
我最近发现我很擅长于在我所熟悉的领域内给人以深入浅出地
解释，于是就在EE版发了几篇科普文章。。。
但生活不是我擅长的领域，所以我还写不了小说。
也许哪天我可以尝试尝试写些新聊斋攻关秘诀什么的。
【在 l****e 的大作中提到】
: you big pen, write some novel... :))
|
l****e
发帖数: 476 | 12 那好, 给偶深入浅出地讲讲cdma以及dwdm的原理...
【在 s*****n 的大作中提到】
:
: 我最近发现我很擅长于在我所熟悉的领域内给人以深入浅出地
: 解释，于是就在EE版发了几篇科普文章。。。
: 但生活不是我擅长的领域，所以我还写不了小说。
: 也许哪天我可以尝试尝试写些新聊斋攻关秘诀什么的。
|
s*****n
发帖数: 536 | 13
^^^^^^^
I am not good at it.
DWDM is dense wavelength Division Multiplexing.
Now you can understand it...:)
【在 l****e 的大作中提到】
: 那好, 给偶深入浅出地讲讲cdma以及dwdm的原理...
|
l****e
发帖数: 476 | 14 i wanna know the principles, i.e. how it works...
some websites are also welcomed. :))
【在 s*****n 的大作中提到】
:
: ^^^^^^^
: I am not good at it.
: DWDM is dense wavelength Division Multiplexing.
: Now you can understand it...:)
|
s*****n
发帖数: 536 | 15 roughly speaking, it's like this:
suppose I have 3 beams:red blue and yellow.
I use each beam transfer 1 channnel of signal,
for example, 10Gbit/s. Then I input all the
three beams into one fiber, then the system can
be upgraded from previous single channel system
of 10GB/S to 30GB/S.--This is WDM.
If I insert a lot of beams, each of which has different
color ( freq.), into one fiber, then It's DWDM. For example,
100 different colors, each color transmit 10Gbit/s,
then you can transmit 1TB/s ove
【在 l****e 的大作中提到】
: i wanna know the principles, i.e. how it works...
: some websites are also welcomed. :))
|
l****e
发帖数: 476 | 16 thanks.
it may requires optical switching if it becomes widely accepted, are there
any advance with that?
do you have any ideas on how it may affect the Gigabit routing?
laobiao, that's also a question i wanna ask you. :)
【在 s*****n 的大作中提到】
: roughly speaking, it's like this:
: suppose I have 3 beams:red blue and yellow.
: I use each beam transfer 1 channnel of signal,
: for example, 10Gbit/s. Then I input all the
: three beams into one fiber, then the system can
: be upgraded from previous single channel system
: of 10GB/S to 30GB/S.--This is WDM.
: If I insert a lot of beams, each of which has different
: color ( freq.), into one fiber, then It's DWDM. For example,
: 100 different colors, each color transmit 10Gbit/s,
|
s*****n
发帖数: 536 | 17 In fact, all the present switch are still in done in
E domain, and most of the E switch are produced by
your company.(kick!) There is even some doubt about
the future of the O switch---since the E switch can
keep up with the pace of the development, why not
bother to....
The main focus on switch in WDM now is OXC w/o wavelength
converter--this is a key factor. Will the switch have
the wavelength convertor or not will fundamentlly
influence the topology of the physical network.
In fact I am not i
【在 l****e 的大作中提到】
: thanks.
: it may requires optical switching if it becomes widely accepted, are there
: any advance with that?
: do you have any ideas on how it may affect the Gigabit routing?
: laobiao, that's also a question i wanna ask you. :)
|
l****e
发帖数: 476 | 18 thanks a lot. does the course have a website? maybe I can d/l from there,
or you can put them onto your webpage, give me the address and i can help
myself with this good thing. :)) need to enrich myself for later career.
thanks again.
【在 s*****n 的大作中提到】
: In fact, all the present switch are still in done in
: E domain, and most of the E switch are produced by
: your company.(kick!) There is even some doubt about
: the future of the O switch---since the E switch can
: keep up with the pace of the development, why not
: bother to....
: The main focus on switch in WDM now is OXC w/o wavelength
: converter--this is a key factor. Will the switch have
: the wavelength convertor or not will fundamentlly
: influence the topology of the physical network.
|
s*****n
发帖数: 536 | 19 In fact it will be of time trouble for me to ftp
to my account. SO ..
I can either email you or ...email you.:)
【在 l****e 的大作中提到】
: thanks a lot. does the course have a website? maybe I can d/l from there,
: or you can put them onto your webpage, give me the address and i can help
: myself with this good thing. :)) need to enrich myself for later career.
: thanks again.
|
l****e
发帖数: 476 | 20 kick...
put them into your webpage :))
【在 s*****n 的大作中提到】
: In fact it will be of time trouble for me to ftp
: to my account. SO ..
: I can either email you or ...email you.:)
|
|
|
s*****n
发帖数: 536 | 21 I checked my account yesterday, the 50MB account did
not allow me to do homepage. The lest account is only
10MByte. SO I will try to get an account in xdrive
so that you can fetch them there. WHen I finished
I will tell you.
【在 l****e 的大作中提到】
: kick...
: put them into your webpage :))
|
l****e
发帖数: 476 | 22 good boy. 3ks.
【在 s*****n 的大作中提到】
: I checked my account yesterday, the 50MB account did
: not allow me to do homepage. The lest account is only
: 10MByte. SO I will try to get an account in xdrive
: so that you can fetch them there. WHen I finished
: I will tell you.
|
m*******m
发帖数: 182 | 23
There are smarter ways then just popping up the link
capacity. You can achieve higher bandwidth by treating WDM
links as shared resource instead of just end-to-end
independent channels. Go to look at WashU Terra Bit Burst
Switch project for details.
Speaking of switching, CSCO bought our boss' startup for
$355M just to get on hold of the switching fabric chip they
developed. Check out www.growthneteworks.com for details.
I assumed you mean IP routing. Not sure what do you mean by
Gigabit ro
【在 l****e 的大作中提到】
: thanks.
: it may requires optical switching if it becomes widely accepted, are there
: any advance with that?
: do you have any ideas on how it may affect the Gigabit routing?
: laobiao, that's also a question i wanna ask you. :)
|
l****e
发帖数: 476 | 24 Lao biao, givemme a link to your Project.
so you mean shared capacity for difference links, based on some media
access control techniques? or just they are physically seperated 'coz of
different wavelength? is optical amplifier/sensor good enuf to carry
all of them without a glitch?
that will worth a hit. what's his next startup? :))
that sounds neat, what are the bus you guys are using in your projects?
CSCO's bus are TDM based and they also use some PCI bus for datapacket
forwarding. and what
【在 m*******m 的大作中提到】
:
: There are smarter ways then just popping up the link
: capacity. You can achieve higher bandwidth by treating WDM
: links as shared resource instead of just end-to-end
: independent channels. Go to look at WashU Terra Bit Burst
: Switch project for details.
: Speaking of switching, CSCO bought our boss' startup for
: $355M just to get on hold of the switching fabric chip they
: developed. Check out www.growthneteworks.com for details.
: I assumed you mean IP routing. Not sure what do you mean by
|
s*****n
发帖数: 536 | 25 I forget if I have given you my file? pls send mail
to me if you have received it.
【在 l****e 的大作中提到】
: Lao biao, givemme a link to your Project.
:
: so you mean shared capacity for difference links, based on some media
: access control techniques? or just they are physically seperated 'coz of
: different wavelength? is optical amplifier/sensor good enuf to carry
: all of them without a glitch?
: that will worth a hit. what's his next startup? :))
: that sounds neat, what are the bus you guys are using in your projects?
: CSCO's bus are TDM based and they also use some PCI bus for datapacket
: forwarding. and what
|
m*******m
发帖数: 182 | 26
】
Check your mailbox.
It's higher level than that. It uses dynamically assigned
channels to carry data bursts. Basically, bigger burst uses
more links. See the project paper for details.
I guess it has to be TDM regarding buses, and it is self
designed cuz there are issues particular to switching
issues. We have our own switch element, input processor,
and output processor. PCI buses are not quick enough for
high end swicthes, I think. How do you keep up with OC-192
links? A 6-port switc
【在 l****e 的大作中提到】
: Lao biao, givemme a link to your Project.
:
: so you mean shared capacity for difference links, based on some media
: access control techniques? or just they are physically seperated 'coz of
: different wavelength? is optical amplifier/sensor good enuf to carry
: all of them without a glitch?
: that will worth a hit. what's his next startup? :))
: that sounds neat, what are the bus you guys are using in your projects?
: CSCO's bus are TDM based and they also use some PCI bus for datapacket
: forwarding. and what
|
s*****n
发帖数: 536 | 27 hey, maelstorm, give it to me too. OK?
【在 m*******m 的大作中提到】
:
: 】
: Check your mailbox.
: It's higher level than that. It uses dynamically assigned
: channels to carry data bursts. Basically, bigger burst uses
: more links. See the project paper for details.
: I guess it has to be TDM regarding buses, and it is self
: designed cuz there are issues particular to switching
: issues. We have our own switch element, input processor,
: and output processor. PCI buses are not quick enough for
|
m*******m
发帖数: 182 | 28 After checking with our hardware people, it seems that we
are not using "bus-based" architecture. You can tell from
the paper too. Kinda shared-memory, non-blocking,
multi-stage architecture. |
