Juniper Default Routing Tables

[fancy_header3 variation=”orange”] Juniper Default Routing Tables [/fancy_header3] The first time I saw these I remember thinking what is going on here. It can be pretty foreign the first time someone sees it especially coming from Cisco IOS. The two CLIs wrap and abstract the underlying standardized frameworks pretty differently. I think it helps to decouple… Continue reading Juniper Default Routing Tables

Juniper and Cisco Comparisons of RIB, LIB, FIB and LFIB Tables

[fancy_header3 variation=”slategrey”]Juniper and Cisco Comparisons of RIB, LIB, FIB and LFIB Tables[/fancy_header3] A quick overview before we start: [fancy_list style=”circle_arrow” variation=”slategrey”] RIBs maintain the network topologies and routing tables for each protocol. This would include many routes going to the same destination prefix. FIBs are the best route from the possibly many protocols in the… Continue reading Juniper and Cisco Comparisons of RIB, LIB, FIB and LFIB Tables

How Headers Encapsulate in the OSI stack

[fancy_header3 variation=”slategrey”]How Headers Encapsulate in the OSI stack[/fancy_header3] How Headers Encapsulate in the OSI stack: Part 2 of some refreshers. We send application data or payload by encapsulating or framing each layer within the previous layer. We looked at each one individually and now here is how they look when each layer is wrapped inside the… Continue reading How Headers Encapsulate in the OSI stack

What are Ethernet, IP and TCP Headers in Wireshark Captures

[fancy_header3 variation=”orange”]What are Ethernet, IP and TCP Headers in Wireshark Captures[/fancy_header3] If I could go back in time when I was a n00b kid wanting to go from zero to a million in networking, the one thing I would change would be spending about 6 months on the fundamentals of networking headers and framing before… Continue reading What are Ethernet, IP and TCP Headers in Wireshark Captures