I did a quick google search for a converter but either I'm not
understanding, or I'm not searching for the right thing.
We currently have a POS OC-3 that I would like to be able to convert
it to Ethernet, if possible.
Do such devices exist?
They're called "routers". 
Otherwise, your framing is completely different between those mediums,
so it's not like going from 100Base-FX ethernet to 100Base-TX ethernet!
HTH,
Scott Morris, CCIEx4 (R&S/ISP-Dial/Security/Service Provider) #4713,
CCDE #2009:
, JNCIE-M #153, JNCIS-ER, CISSP, et al.
CCSI #21903, JNCI-M, JNCI-ER
[1]swm@emanon.com
Knowledge is power.
Power corrupts.
Study hard and be Eeeeviiiil......
Yeah, and it's pretty sweet idea. Haven't used it myself but it seems really nice.
<http://www.rad.com/10/GbE-over-STM-1-OC-3-SFP-Converter/17834/>
RAD’s MiRICi-155 connects Gigabit Ethernet LANs over wireline or wireless STM-1 or OC-3 links. The miniature Ethernet over STM-1/OC-3 converter provides TDM connectivity to any Ethernet device with an SFP (small form factor pluggable)-compatible, GbE port. Hot-swappable and software-configurable, the intelligent SFP converter is a fully managed device supporting standard GFP encapsulation. It delivers a complete Ethernet over SDH/SONET solution in a finger-sized SFP enclosure and enables a quick rollout of new Ethernet services over legacy TDM infrastructure. The MiRICi-155 is part of RAD’s “System on an SFP” product line.
You could always use a pair of SONET ADMs on both sides with OC-3
cards and ethernet cards.
Cisco 15454 is a little big, but maybe the 15327 would have OC-3 cards...
I can vouch for the RAD gear. Pretty simple and to the point.
I can vouch for the RAD gear. Pretty simple and to the point.
I currently have several dozen ONS 15310-MA's deployed to do exactly that,
convert OC12's and OC48's into 1 or 2 gige's. Its a bookend solution, so
you need a box for each end of the circuit, but in our case the cost of the
two boxes was still cheaper than the router POS interfaces.
There are cheaper options compared to Cisco, like the Force10 Traverse
series, but for the size and cost of the 15310-MA, its hard to find a better
box. There are two model cards that will do the conversion for you, the ML
card which operates more like a transparent switch and bridges the traffic,
or the CE card which mimics more of a media converter, layer 1 3/4 :-). I
use the CE card most often and its works great.
For the CE card, the ONS uses GFP can VCAT to mimic a direct physical
connection and it can even turn the remote TX laser off if the local RX
losses link.
If you want more info or a parts list, let me know. The optical division
within Cisco is a tricky place to navigate and most of the SE's I have
spoken with didn't even want to do anything with the optical side of the
business. Some of the interesting things I have learned about the Optical
division:
- They have literally a thousand times more part numbers than the rest of
the division
- every part in the chassis order ala carte, and the config tool doesn't
build it for you (chassis, fan tray, front door kit, sup card, blanks, etc)
- they give you more than enough rope to hang yourself and then some
- support is ala carte as well, per piece (chassis, fan tray, sup card,
etc
GL
-Rob
By "convert" do you mean:
1) You have a POS OC-3 from an upstream and you don't want to buy a
router that can take a serial OC-3.
or
2) You have a PTP OC-3 that you control both ends of and you want to
make it into a really long Ethernet cable.
~Seth
Has anyone run into issues with HE's power and the limitations therein?
For instance they seem to want to sell a second rack of space to get any
reasonable amount of power into their enclosures.
The basic 40U Rack only comes with a single source of power which is
limited to 15A meaning it is really difficult to properly build out N+1
type operations. We also had a power outage which they claim hasn't
happened in 12 years previously but I somehow doubt that FM2 has existed
for 12 years.
Anyone have a connection to Mike L directly?
Todd Glassey
Todd,
You're not supposed to build out N+1 with HE's co-lo specials. They
offer the cabinet with a limited amount of power to prevent full
utilization of the unlimited bandwidth that comes with the bundle. I'm
sure they'll sell you space with whatever power and bandwidth you
require, but not at the same great deals you're probably looking at
now.
Everyone has power outages once in a blue moon, we lost an entire row
of cabinets at Peer1 for about 45 minutes last year due to some faulty
gear on their side.
Best regards, Jeff
Has anyone run into issues with HE's power and the limitations therein?
For instance they seem to want to sell a second rack of space to get any
reasonable amount of power into their enclosures.
Perhaps that was several years ago when we didn't offer custom power or recently and we failed to communicate our flexibility, however nowadays you can get as much power per cabinet in our facilities as you want to buy. We have customers with 30 amp 120 volt circuits, others with dual 20 amp 208 volt circuits plus a 15 amp 120 volt circuit, and we even have some customers with three phase 30 amp 208 volt electrical circuits.
Since the power delivered to a cabinet is the primary cost of a basic cabinet with one electrical circuit, the cost of additional 15 amp circuit is the same as a 15 amp cabinet.
The basic 40U Rack only comes with a single source of power which is
limited to 15A meaning it is really difficult to properly build out N+1
type operations.
We can source electrical circuits from different PDUs if you specify it at the time of ordering.
Mike.