August 2009
Intermediate to advanced
690 pages
20h 14m
English
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Traffic Monitoring
Besides monitoring the hardware and software itself to determine the health of the network, it is also possible to use the traffic flowing through the network and the routing updates received by the network equipment to not only determine the current state of the network, but also create a baseline that can be used to determine issues that in the future could lead to network outages. It is possible to deploy JUNOS or software-based tools to monitor the traffic flows and routing updates and deliver them in a fashion that is usable to network engineers.
Traffic Monitoring Overview
When it comes to the high availability of your network, the purpose of traffic monitoring is twofold:
To ensure that throughput levels are known and a baseline is created to ensure that anomalies in traffic flow, which could indicate network outages or degradation, are detected as quickly as possible
To ensure that routing protocols are behaving correctly internally to the network, as well as ensure that neighboring Autonomous Systems (ASs) are not affecting your high availability by sending bogus routing announcements
Though some network engineers never worry about how their daemons are coupled or how their operating system works, it’s common to have software installed on machines that seems to steal resources from all the other software—locking up the computer and forcing a reboot. You don’t want a mistake in your SNMP process stealing resources from Border Gateway Protocol (BGP) and possibly ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.