Ip0DWDM, core and edge networks and Aggregation

[diegosal81]

According to the picture of this link at Cisco´s web site:

http://www.cisco.com/web/BR/solucoes/sp/network_infrastructure/carrier_ethernet.html#~one

The picture is uploaded here as well

How does it work?

[Tom Randstrom]

It is the movement of the wavelength specific optical functionality from the DWDM system, via a transponder, to the L2/L3 system.  It also adds some additional optical network monitoring capabililities and optical network network planning capabilities in the optcial transport planning tools. This document provides some info.

http://www.cisco.com/en/US/docs/net_mgmt/active_network_abstraction/3.7.2/theory/operations/ipdwdm-theory.html

Hope this helps.

Tom

[diegosal81]

Hi Tom,

First of all, thank you!

But I would like to hava a more specific answer. The DWDM system transports ip/mpls traffic isn´t it?

And it aggregates data according to the picture. How data is transported directly to the residential? There is a router connected directly and othe access techs to deliver data.

Diego.

[Tom Randstrom]

Diego,

The DWDM system can transport IP/MPLS traffic over many types of circuits (POS, Ethernet over OTN, Resilient Packet Ring, muxponder, etc.).  This could be residential traffic from a CMTS, DSLAM, PON OLT, or other; which is backhauled to a core router over the DWDM network.  The DWDM system could incorporate P-OTS (packet optical transport system) functionality, allowing some additional grooming of the traffic across the DWDM network (instead of pt-tpt circuits). 

Lots of options.  No one right answer.

Tom