October 2012
Intermediate to advanced
902 pages
28h 9m
English
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Chapter Review Answers
Answer: C. By default, filter and policer stats are aggregated on a per PFE basis, unless you use the interface-specific statement. When the interface-specific keyword is used a separate filter (and if used, policer) instance is created for each application.
Answer: E, both A and C. A physical interface policer needs the
physical-interface-policerstatement, and you apply via one or more filters that include thephysical-interface-filter statement, under each family on all the IFLs that share the interface device. The result is a single policer that polices all families on all IFLs.Answer: E. All are true regarding a Layer 2 policer, which is also a form of logical interface policer in that it acts on all families that share an IFL.
Answer: A. When a routing instance has filter applied to an lo0 unit in that instance, that filter is used; otherwise, control plane traffic from the instance to the RE is filtered by the main instance lo0.0 filter.
Answer: B. You use prefix lists and the apply-path feature to build a dynamic list of prefixes that are defined somewhere else on the router; for example, those assigned to interfaces or used in BGP peer definitions, and then use the dynamic list as a match condition in a filter to simplify filter management in the face of new interface or peer definitions.
Answer: B. Only with
next-termcan you can have traffic that has been accepted by one policer, which is then returned to the calling term where it’s normally implicitly ...
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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.