TITLE

High Availability In Routing

PUB. DATE
May 2004
SOURCE
Business Communications Review;May2004, Vol. 34 Issue 5, p48
SOURCE TYPE
Trade Publication
DOC. TYPE
Article
ABSTRACT
As Internet protocol networks get faster and carry more real-time traffic, however, faster convergence becomes an increasingly important goal. Removing or shortening the timers might seem like the obvious solution, but we also must maintain the balance between fast convergence and network stability. We have seen that fast convergence of routing protocols is critical in modern Internet Protocol (IP) networks, especially if we are going to run many real time and converged applications across them, and if we are going to build truly highly available networks. In the past, network designers have always worked around routing protocols' convergence speeds, primarily by relying on redundant links and Layer 2 failover techniques. Using exponential backoff, dampening and other techniques at Layer 2, it is possible to have sub-second routing protocol convergence in a large IP network, allowing network engineers to design their networks to converge very quickly over much larger geographic and topological areas without sacrificing network stability.
ACCESSION #
13088395

 

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