[Webinar] Streamline your web hosting managementRegister Today

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 777
  • Last Modified:

routing topology to ISP

I am just curious what the typical topology of routing out to the ISP is and an example of the equipment used.   See the following diagram:

http://ptgmedia.pearsoncmg.com/images/chap01_158705146x/elementLinks/fig16.jpg

It shows multiple routes summarized to the E router.  So let's say I have Comcast.  They provide me a modem/router.  What equipment might this connect to?  Multiple routers with 100's of Comcast customers in the area?  If so, do they make Cisco routers that provide dozens of interfaces just for this application (ISP's)?  

So to summarize, I basically want to find out how 100's of customers are consolidated into the ISP and the equipment used.
0
B1izzard
Asked:
B1izzard
1 Solution
 
rfc1180Commented:
>It shows multiple routes summarized to the E router.  So let's say I have Comcast.  
They provide me a modem/router.  What equipment might this connect to?

Typically they will give you a bridge with a built in firewall; the bridge converts the Ethernet technology to a coax network. Typically the network would extend to a cable modem termination system and then from their to a core network. A typical CMTS device would be a uBR7200VXR Platform; possible configurations would be the use of 802.1Q Transparent LAN Service (TLS) feature and  DOCSIS deployments to provide L2VPN services. There are many types of topologies that can be used:

http://en.wikipedia.org/wiki/Cable_modem_termination_system
http://www.ciscosystems.com.pe/en/US/tech/tk86/tk804/technologies_tech_note09186a0080204a1a.shtml
http://www.ciscosystems.com.pe/en/US/tech/tk86/tk804
/technologies_tech_note09186a00800a9702.shtml
http://cablelabs.net/specifications/SP_CMTS_NSII01-960702.pdf

Billy
0
 
B1izzardAuthor Commented:
Great info.  Thanks!
0

Featured Post

Free Tool: Path Explorer

An intuitive utility to help find the CSS path to UI elements on a webpage. These paths are used frequently in a variety of front-end development and QA automation tasks.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now