Network Engineer – F.O.C.U.S Follow One Course Until Successful
RIB ( Routing Information Base ) FIB ( Forwarding Information Base ) LIB ( Label Information Base ) LFIB ( Label Forwarding Instance Base ) Adjacency table CAM table RIB : The routing table contain all the informations regarding the creation of…
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What is CEF? Definition from Cisco.com : Cisco Express Forwarding (CEF) is advanced, Layer 3 IP switching technology. CEF optimizes network performance and scalability for networks with large and dynamic traffic patterns, such as the Internet, on networks characterized by…
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I don’t have a clue of what they mean by this title in the blueprint .. if someone can help me out it will be very appreciated.
IOS XE supports multiple CPU cores, control plane and data plane separation, and platform abstraction which leverage enhanced performance. IOS XE provides flexibility by offering In Service Software Upgrade (ISSU) which is no go in case of IOS classic. IOS…
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Before starting this post this is something that has been very theoretical and had a hard time to visuals so i intend to make the best effort to deep in and explain it. Lots of pleasure ahead. Control Plane…
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IOS runs all necessary modules to perform network operations into one single process .So if anything happen to the routing engine the entire IOS kernel could Crash. IOS-XE software architecture run under a Linux Platform “system daemon” giving the ability to…
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Iv Decided to follow the blueprint and will put everything on my site as a reminder and a nice challenge. In the blueprint there is over 400 different topics between section 1 to 6. So i will cut this in…
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Label Stack Fields Label = 20 bits EXP = 3 bits map the standard IP packet ToS into the Experimental field for MPLS CoS S = Stack bit is use to identify the end of the last label of the…
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OSPF Filtering Using Distribute List with Prefix-List ! ip prefix-list BLOCK_L0 deny x.x.x.x/xx ip prefix-list BLOCK_L0 permit x.x.x.x/x ! router ospf 1 distribute-list prefix BLOCK_L0 in or out ! OSPF Filtering Using Distribute List with ACL ! ip access-list standard…
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This checklist is a collection of all the hardening steps that are presented in this guide. Administrators can use it as a reminder of all the hardening features used and considered for a Cisco IOS device, even if a feature…
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