Passive Interface


Passive Interface

Used so there are no hello packets / routing updates sent out on a interface.  The reason for this is if I had a interface that is nor participating in a IGP like EIGRP , RIP OSPF etc CPU cycles are being wasted sent out on that interface.

Router Eigrp 1

Passive-interface Default

No passive-interface Fa1/0

Network 192.168.0.0 0.0.255.255

Different IGPS handle Passive-interfaces differently

RIP – > Does not send hello multicast, but it will receive them

EIGRP-> Will not send or receive

OSPF – > Will not send or receive

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About ccie4all
Hello, and welcome to the first post of my CCIE blog This blog has got one simple goal and that is to improve our skills in Cisco Networking field so we can become best engineers on a job market. Wordpress Blog https://ccie4all.wordpress.com/ information about the changes made to Gns3 BGP , MPLS and R&S CCIE labs. In order to access and download all provided materials and receive important updates from Gns3 BGP , MPLS and R&S CCIE labs under GNS3 tab in the main header please go ahead and subscribe to https://ccie4all.wordpress.com/ ! All other posts have not been affected and can be accessed at any given time. Enjoy ! Tom

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