Subject: Re: [IP-Optical] topology! OFC

From: Zeeshan Rizvi <[email-masked]>
Date: Tue, 14 Oct 2003 17:52:17 -0500

Hi Amit,
This depends on what are the applciations and requirements that will be 
fulfilled with this network. That would also drive the kind of 
protection (if thats what you meant by topology ) that you might be 
needing for your network. If you are planning to aggregate your legacy 
traffic (Like Ethernet, T1 etc ) or revenue generating high priority 
traffic then an ideal topology would be a 2 Fiber Bidirectionally Line 
Switched Ring (BLSR) due to the reliability and protection that will be 
yeilded by this configuration . At the same time non-protected channels 
could also be used for non-critical unprotected data ( like internal 
data traffic ) on the same ring.

If you intend to use this network to  switch the data between 
aggregation network elements than traditionally a linear 1:1 or 1+1 
protected configuration had been in use . Eventhough the BLSR topology 
is slowly emerging to be another choice with the host of different 
companies pitching into the metro core arena...

Hope that answers your question .

Regards,
Zeeshan Rizvi.

amit wrote:

> Hi! all!
>
> I am planning to design OFC network in Hilly terrain approximately 
> have radius of 10 KM. Which topology will be best for this type of 
> terrain with 10 KM radius.
>
> Regards,
> Amit
>  At 12:01 PM 9/18/03 -0400, you wrote:
>
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>>    1. seeking suggestion (=?iso-8859-1?q?sundar=20pandian?=)
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>> Date: Thu, 18 Sep 2003 05:41:12 +0100 (BST)
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>> sir
>> i am student interested in taking the topic IP over
>> WDM as part of my ME thesis.can u plz give me a good
>> problem and refernce under the topic of IP over WDM.
>> which to give me chance to learn more abt IP over WDM
>> and help me out in my project
>> thanks in advance
>> sundar
>>
>>
>>
>>  --- x s <[email-masked]> wrote: > Hi, Sundar,
>> > 
>> > In my opinion, IP over WDM is very difficult to be
>> > sumulated in its complexity. Now IP is a
>> > multi-service data communication networks. It has
>> > its traffic control and feedback mechanism. This
>> > makes us difficult to capture the characteristics of
>> > IP traffic. WDM is a blocking network, which is easy
>> > to simulate.
>> > 
>> > I think Matlab may be better. For Opnet, it is not
>> > easy to modify all the models to meet your unique
>> > requirements.
>> > 
>> > In terms of interface between LSR and OXC, I suggest
>> > you refer to some documents on how to simulate IP
>> > traffic. It will be too simple and ideal if we use
>> > possion process to describe the arrival of LSPs.
>> > 
>> > You needn't simulate the signaling process.
>> > Generally, you only need to simulate the data plane
>> > to evaluate the optical performance. What is the
>> > implication of multi-hop? Is it the multi-hop
>> > grooming?
>> > 
>> > Best regards
>> > Xu
>> >
>> > sundar pandian <[email-masked]> wrote:
>> > hi all
>> > i am sundar from anna university,as part of my
>> > project thesis,i like to simulate a IP over WDM
>> > using MPLS/MPlambdaS.i need all ur valuable
>> > guidelines in simulating this.
>> > > the first Qs is what simulaton tool does i need to
>> > simulate Ip over WDM using MPLS.
>> >  does the simulation can be done with C/C++.
>> > > the second Qs,how can bring a interface between
>> > LSR and OXC to do my simulations
>> > > if i like to use multihop,does this can be
>> > achieved by nowavelenghth conversion in OXC.
>> > expecting ur guidelines
>> > sundar
>> >
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