TSHOOT – Unicast Reverse Path Forwarding (uRPF), and VLAN Access-List (VACL) details reviewed for exam day!

A full understanding of the mechanics of uRPF (the different behaviors of the two modes especially), along with knowing the basic configuration and theory of how VACLs work, so when you are faced with tricky word play / config examples of either on a Cisco exam or while on the job troubleshooting a production network! … Continue reading TSHOOT – Unicast Reverse Path Forwarding (uRPF), and VLAN Access-List (VACL) details reviewed for exam day!

TSHOOT – Attempt #1 – I have found one of the 10,000 ways NOT to pass it! :)

Today the TSHOOT exam cleaned my clock pretty well, and though I'd much rather be posting a Pass grade printout, I'd like to share what I've learned from this experience! I never realized it until I took the TSHOOT exam, but I am "Shoot from the Hip" guy Sitting the TSHOOT exam today has revealed … Continue reading TSHOOT – Attempt #1 – I have found one of the 10,000 ways NOT to pass it! 🙂

TSHOOT – Mnemonic to remember Logging Levels 0-7, Troubleshooting Methods, and Maintenance Models must know for exam day success!

I wanted to write a quick post to brain wash myself with right before I walk into the exam room tomorrow to Pass TSHOOT, as this theory has a very good chance of being on the exam in some format, and I have a habit of forgetting things I can't lab. So to cover these … Continue reading TSHOOT – Mnemonic to remember Logging Levels 0-7, Troubleshooting Methods, and Maintenance Models must know for exam day success!

TSHOOT – Management Plane vs Control Plane vs Data Plane, MPP (Management Plane Protection) review for exam day!

This graphic that I created to help myself understand CEF Hardware Packet Switching is also very similar to the Management Plane vs Control Plane vs Data (Forwarding) plane. Management Protocols run at the Management Plane (hence the name Mgmt Plane) is where Management Protocols such as SSH / Telnet / SNMP / HTTP / HTTPS … Continue reading TSHOOT – Management Plane vs Control Plane vs Data Plane, MPP (Management Plane Protection) review for exam day!

TSHOOT – Mgmt Tools (NTP / Syslog / SNMP / IP SLA Tracking) review and troubleshooting for exam day!

If a trouble ticket pops up for these an issue with these protocols, to know if a protocols port # is not being forwarded correctly, or being blocked by an ACL somewhere, in addition to all the other misconfigurations that might go wrong. For IP SLA, perhaps someone can correct me here in the comments, … Continue reading TSHOOT – Mgmt Tools (NTP / Syslog / SNMP / IP SLA Tracking) review and troubleshooting for exam day!

TSHOOT – HUGE shout out for Boson Exam Simulator for the 300-135 TSHOOT exam, and of course my study resources!

Notice the tabs to access the Layer 2 / Layer 3 IPv4 / Layer 3 IPv6 Diagrams! I don't know if others are expecting this, but this was a TKO punch when I first opened the first simulation question in Boson, and had no idea what to look at and start pinging. I just cannot … Continue reading TSHOOT – HUGE shout out for Boson Exam Simulator for the 300-135 TSHOOT exam, and of course my study resources!

TSHOOT – Critical understanding of Cisco Published Topologies, troubleshooting methods, and must knows for exam day!

These 3 diagrams have been publicly available for years, I downloaded this TSHOOT Topology off Cisco's official learning forum, post can be viewed here. I doubt this is exactly the Topology used on exam day, it very well could be, however if this is not it the Topology will be something extremely similar to this. … Continue reading TSHOOT – Critical understanding of Cisco Published Topologies, troubleshooting methods, and must knows for exam day!

TSHOOT – Route-Maps, Policy Based Routing (PBR), and Local Policy Routing review and troubleshooting!

Route-Maps are used for multiple different purposes as shown in the example above, this specific Route-Map itself would never exist in a real world scenario, because the sequences demonstrate several different use cases for Route-Maps in the sequences. Review of sequences from the Route-Map posted above A few concepts of Route-Maps is that the "permit" … Continue reading TSHOOT – Route-Maps, Policy Based Routing (PBR), and Local Policy Routing review and troubleshooting!

TSHOOT – Troubleshooting Memory / CPU issues, and how to apply it to “follow the path” troubleshooting method!

Multi-Layer Switch architecture, and how SDM can play a role in relieving the issue, and as this will only be a reference to commands to use / method of using them the following articles will need to be read or understood for the commands to make sense: Detailed review of MLS Architecture SDM templates reviewed … Continue reading TSHOOT – Troubleshooting Memory / CPU issues, and how to apply it to “follow the path” troubleshooting method!

TSHOOT – Description of error types in “show interfaces gig 1/0/1 counters error” output!

Found this graphic of condensed definitions of error descriptions when running a command for interface gi1/1 as "show interfaces gi 1/1 counter errors" when troubleshooting a switches interface for errors. A very good full explanation of all the different output can be found at the youtube channel I stole the graphic from (shame on me) … Continue reading TSHOOT – Description of error types in “show interfaces gig 1/0/1 counters error” output!

Almost to the Summit! TSHOOT notes will be a bit more limited, and some suggested prep materials within!

We are almost to the Summit of the CCNP R/S and soon to be Enterprise!!! My previous TSHOOT posts to this article is unique information that you will want to know for exam day and for real life on the job purposes, otherwise going forward will be much more condensed notes that will be largely … Continue reading Almost to the Summit! TSHOOT notes will be a bit more limited, and some suggested prep materials within!