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Advanced Network Analysis Techniques Essay Example

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Advanced Network Analysis Techniques

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Advanced Network Analysis Techniques. The Multiprotocol Label Switching (MPLS) protocol is a relatively new technology and it is a mechanism for labeling traffic flows to define a path through a complex network. A network operator can use MPLS as a management tool, as capacity and routes can be seen." (Shopforbandwidth, n.d.)
How MPLS works?
With frame relay, the provider's frame relay switches swap the frame packets based on data link connection identifier (DLCI) numbers. The switches don't look at the IP information, nor do they need to. With MPLS, this is not the case. The switches look at the IP source and destination of the packets because their IP routers are critical IP routers on your network. That means they must participate in whatever routing protocol we choose.

If they're routing packets for us, they must have our routes. (Shopforbandwidth, n.d.)
If we decide to migrate to an MPLS network provider, and we run Open Shortest Path First (OSPF) as our dynamic routing protocol, all sites have to have access to every other site. At the central site, we have an Internet circuit. (Shopforbandwidth, n.d.)
Think of the MPLS provider's router as the "big" router in the cloud. All of our routers connect to its router, and we're routing the traffic together. Therefore, the MPLS providers are responsible for the routing. (Shopforbandwidth, n.d.)
If we make changes to the routing protocol, we may need to request that the provider reconfigure its routing protocol. In most cases, however, we can just add a new LAN subnet without informing them at all, and the dynamic routing protocol does its job. Or, if we want to do this without involving the carrier, we could distribute a default route through the dynamic routing protocol and assuming the carrier doesn't have any filters, the remote routers should be able to access the Internet using this default route. (Shopforbandwidth, n.d.)
Another option is to use the static route mentioned above. Advanced Network Analysis Techniques.

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Shopforbandwidth n.d., Differences between MPLS and frame relay, viewed 5 June 2009, http://www.shopforbandwidth.com/Differences-between-MPLS-and-frame-relay.php
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