Three Technical rounds and 1 director round.
full Networking based .
basics should be strong.
arp scenario
tcp handhsake
nat pat scenarios
ssl handshake
ipsec troubleshooting
ospf states
bgp path selection
tcphandshake
tcp header, options, flags
After 3 technical rounds there will be Director round with one or two troubleshooting questions.
after this If candidate is selected then they will call you with the ctc offered.