MTU and TCP MSS clamping

So I have had many conversation over the years in regards of that is MTU and how does it work and what is the relationship between frame/packet/datagram sizes. Despite the fact that this is actually fairly simple there seems to be a lot of confusion on this topic so that is why this article come about. read more

How (not) to interview – part I

This Article will be bit unusual for this blog as it is not about any technology but it is about my experience with interview process. I had the opportunity of experiencing it from both sides many times and quite intensively during the last year or so. And I made quite a few observations that I think are worth sharing. read more

Unequal AS Multipath Load Balancing

The topic of this lab is understanding route manipulation with BGP. The Juniper article with details on the Multipathing in Junos.

Scenario

You are a network engineer in ISP1 and you have been given a task to implement a routing policy that would load-balance traffic from your own AS 65001 towards AS65005 (5.0.0.0/24 prefix). You have no control over the path selection on the other ISP routers.  read more