CCIE RS Lab – Week 15

Hours studied

Sunday

Took the night off, full scale lab 3 had me thinking on some different strategy. I also worked on some “paper work” type things to clean up my notes

Monday

INE videos – DMVPN and IPSec

Continued on INE full scale lab 3 – multicast section, this also kicked me hard. This required using BSR (easy) and BGP to route the multicast (hard). I struggled with wrapping my head around what neighbors needed to be formed and which routes needed to be added into this table. As like other sections, the wording made it very hard to understand what was being asked. I’m going to table this section and dig deeper into the specifics on it’s own. The solution for this section is very long and has a lot of different verification steps.

I believe what tripped me up on this section was the use of the GRE tunnel and forgetting to check the RPF. If I looked at the unicast routing table I would have seen the route to the RP was through the wan interface instead of the GRE like I would need it to be for the pim enabled interfaces.

Even after getting everything configured and verified, I still could not get traffic to work, however I cannot tell if this is due to a misconfig or due to virtualization. All verification commands show a working data and control plane path. I’ll need to investigate this one further.

Tuesday

INE videos – IPSec

Continued with INE full scale lab 3 – IPv6

Was able to get ospfv3 routing working without an issue.

Learned a new command for IPv6 address autoconfig [default] – this automatically generates a default route towards the router that the IPv6 address was originiated from

The IPv6 routing wasn’t to difficult, just needing the figure out which which direction to tag the next hop address in as took a minute to think about. This was needed because I had to route IPv6 traffic over an IPv4 backbone.

The network security section had me configure AAA settings. I got most of this right, I did miss for configuring every vty line and missed the local-case part of the authentication command

The last section was QOS, however I did not get to it this night as my rack time expired. I could have extended this, but I’ll focus on it for the next session as QOS can be tricky due to wording and multple configuration steps that may be required

Wednesday

INE videos – IPSec and VTI

Completed the full scale lab 3 – QOS, this was involved and also made me use EEM scripts, which I am very rusty with.  After I finished this section and went through verification I turned up troubleshooting lab 1 to finish out the rack time.

Thursday

I spent some time going through the expanded blue print and filling in my confidence levels in the technologies. This was a good exercise as it exposed some things that I don’t remember as well as I think I do and also some things that I have forgotten about. I’m going to use this as a place to figure out where I need to focus more.

Based off the exercise there was a common theme, summarization. I decided to revisit OSPF summarization and stub areas as pointed labs and go through verifications and revise my notes to fill in any gaps I may have missed the first time. I also tried to work on the speed of my typing and typing more accuratly.

The thing that slowed me down was doing the math for subnetting. I need to figure out a better and faster method, but for now. Making sure I get the right subnet mask is more important.

Friday

I spent more time going through the expanded blueprint and entering my understanding level and configuration confidence in an excel doc. With this info I was able to conditionally mark the rows with red or yellow to help see where I need to spend more time. Going through this I can see I need to spend more time on systems management, network services, security, QoS and multicast.

This looks daunting, but I need to keep reminding myself this is a marathon… This was a good level set and will help me redirect where I need to practice. Also, in talking with a friend, I am going to integrate spaced repetition. This is not new to me as it’s what the flashcard app Anki uses and I’ve heard about it many times from the podcast College Info geek, however I’m not sure why I never implemented it into my lab studies.

Saturday

Took the day off for family time

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