[nsp] Aggregating DS3s

[Matthew Crocker]

Barry,

  Take a look at the Seranoa IPeX  (www.seranoa.com).  It can handle 12 
DS-3s with any combination of Frame Relay, HDLC, PPP, MPPP or 
Channelized DS3 -> DS1 -> DS0,   Each DS-3 gets converted onto a VLAN 
of a 802.1q GigE trunk port.  You configure VLAN interfaces on your 
routers GigE port.   DS-3/OC-x ports on router hardware are insanely 
expensive.  With the Seranoa you terminate your DS-3/DS-1s and buy GigE 
ports for your router.

I have one in production and it works great.  It has a few quirky 
issues, mostly in physical design (fiber path protection, center 
mounting, etc..) operationally it is pretty nice.
Think of it as a Layer 2 DS3,DS1 switch/bridge and you do all your 
Layer 3 routing over Ethernet.

-Matt

On Jun 11, 2004, at 12:15 PM, Barry Kiesz wrote:

> We're in the process of hooking up another DS3 customer (Fractional) 
> and
> my boss has asked me to research the possibility of aggregating our 
> DS3s
> into an OC-3 interface.
>
> This is what we have:
>
> OC-3 ATM connection to our Passport 15k carrying about 11Mb from one
> customer
> A new DS-3 (standard, not ATM) to another customer with a 6Mb
> commitment.
>
> We were wondering is it's possible to bring both of these connection
> into the router through one interface in neither one of the customers
> will be using the port capacity.  Does Cisco have a card for the 7206
> that would break out STS's on an OC-3 essentially bringing multiple DS3
> into one interface
>
>
> Barry
>
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--
Matthew S. Crocker
Crocker Communications, Inc.
Vice President
PO BOX 710
Greenfield, MA 01302

P: 413-746-2760
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E: matthew at crocker.com