I contacted the recruiter via LinkedIn and received an interview call.

It first was a phone interview, lasting about 30 minutes, which consisted of basic L2/L3 protocol questions. There weren't a lot of details, just the basics of each protocol.

Then I was called in for a 1:1 interview, which involved speaking with 6 different people (approximately 45 minutes each).

The interview was completely technical, with questions from various L2/L3 protocols. I was asked to explain in detail what I was currently working on. I used the whiteboard extensively.

Most of the questions were based on my current work, such as:

• "Why did you design your test topology like this?"
• "How did you test a particular protocol?" etc.

Detailed working of QoS (various policing and shaping techniques)