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Provider standard ARP Timeout?

Subject: Provider standard ARP Timeout?
From: zeusdadog at gmail.com (Jay Nakamura)
Date: Fri, 10 Aug 2012 10:23:26 -0400

Cisco default ARP timeout is 4 hours.  Do anyone change that to
something shorter in a provider environment for customer with Ethernet
connectivity?  What is a good value to set it to?

Are there any impacts for lowering the timeout?  Other than higher CPU
util for doing ARP a lot more on the router?

Follow-Ups:
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  - From: saku at ytti.fi (Saku Ytti)
- Provider standard ARP Timeout?
  - From: sh.vahabzadeh at gmail.com (Shahab Vahabzadeh)

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