GigEth regenerators

Thu Jun 13 12:47:32 UTC 2002

to correct: imcnetworks don't specify, transmode does 3r oeo regeneration

--

Tomas Daniska
systems engineer
Tronet Computer Networks
Plynarenska 5, 829 75 Bratislava, Slovakia
tel: +421 2 58224111, fax: +421 2 58224199

A transistor protected by a fast-acting fuse will protect the fuse by blowing first.

> -----Original Message-----
> From: Daniska Tomas 
> Sent: 13. júna 2002 14:30
> To: nanog at merit.edu
> Subject: RE: GigEth regenerators
> 
> 
> 
> a brief summary of responses up to now:
> 
> - there are several vendors making some kind of sx-to-zx gbe 
> converters (they call it gbe extenders), which gives an 
> equivalent of a device with a zx gbic. these vendors include 
> jdsu, luxn, extreme etc.
> 
> - two companies were found making gbe optical regenerators - 
> imcnetworks and transmode
> 
> - other solution is to try with edfa
> 
> 
> 
> mikael: which exact gbic did you use?
> 
> i was comparing cisco-reselled gbics and their cwdm gbics 
> seem to be more than 10dB better on power budget... anybody 
> tried this in real life?
> 
> 
> thanks again
> 
> --
>  
> Tomas Daniska
> systems engineer
> Tronet Computer Networks
> Plynarenska 5, 829 75 Bratislava, Slovakia
> tel: +421 2 58224111, fax: +421 2 58224199
>  
> A transistor protected by a fast-acting fuse will protect the 
> fuse by blowing first.
> 
> 
> 
> > -----Original Message-----
> > From: Mikael Abrahamsson [mailto:swmike at swm.pp.se] 
> > Sent: 12. júna 2002 17:48
> > To: nanog at merit.edu
> > Subject: Re: GigEth regenerators
> > 
> > 
> > 
> > On Wed, 12 Jun 2002, Daniska Tomas wrote:
> > 
> > > but for gigeth in this case - we need to connect two sites 
> > about 200km
> > > apart over dark fiber
> > 
> > Check out the 7020 from Transmode 
> > <http://www.transmode.se/products/sing_dual.htm>
> > 
> > Btw, my personal best so far is 150km over dark fiber using a 
> > extra long 
> > haul GBIC, 32dB loss over the fiber and it worked perfectly. 
> > Only tested 
> > it for 10 minutes, but there were no CRC errors during that time.
> > 
> > +4dB output from the GGBIC, now we have to worry to not 
> look into the 
> > laser :)
> > 
> > -- 
> > Mikael Abrahamsson    email: swmike at swm.pp.se
> > 
> > 
> 