1. passive interface, means that a router will not send routing advertisements out of that interface, ie
If we make ETH1 passive under routing protocol, then R1 will only send routing advertisements out ETH2. It can still receive the routing advertisements on ETH1 if any are sent to it by another router however.
We use passive-interface when we still want to advertise a specific network interface, but not to form any routing adjancencies over it.
In the example above you can still advertise the ETH1 link to ETH2 even thoough ETH1 is passive, but you will not advertise the ETH2 link out ETH1 since it is passive.
2. Split horizon basically means that a router will not advertise a routing update out of the interface in which it learned it from.
R2 learns the ETH1 network from R1 via its ETH2 interface, so R2 will not advertise the R1 ETH1 network back to R1.
This is used for loop prevention in distance vector routing, ie rip, igrp.
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are
looking for early feedback from customers befor...
Introduction Featured Speakers Luis Espejel is the Telecommunications
Manager of IENova, an Oil & Gas company. Currently he works with Cisco
IOS® and Cisco IOS XE platforms, and NX to some extent. He has also
worked as a Senior Engineer with the Routing P...
In this session you can learn more about Layer 3 multicast and the best
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