IS-IS DIS and Pseudonode

This topic is to discuss the following lesson:

Hi Rene,
Is there any way to make it P2P like OSPF ? Thanks


Hello Zaman,

There is yes, you can use this command:

R1(config-if)#isis network ?
  point-to-point  Specify ISIS point-to-point network

You can use this on broadcast networks (like Ethernet) when you only have two routers. This disables the creation/election of a DIS so it’s more efficient.


Hello Rene
i have Problem with understanding that DIS / PSN
please explain it to me more simple