Hours studied – 19 hours

Sunday – I did some light reading. The book was choice was Narbik’s bridging the gap the EIGRP chapter.

Monday – INE ATC videos, System Management Labs – I have forgotten a lot of the different options. I also need to practice finding these in the documentation, these are spread out through the doc cd.

Tuesday – Took the night off, I was mentally exhausted and needed to disconnect

Wednesday – I watched more INE ATC videos, I have been getting through the EIGRP section

Thursday – I did some more light reading of past labs and also worked on a few pointed BGP labs

Friday – I watched more INE ATC videos continuing with EIGRP. I also reviewed the systems management labs.

Saturday – I spent most of the day on INE full scale lab 2

Notes I took during the lab:

OSPFv3

• No transit links – had to configure as p2p interfaces
  • P2P links don’t send type 2 lsa’s because there is no dr/bdr
  • https://networklessons.com/ospf/ospf-lsa-types-explained/
• No unnecessary LSAs – prefix-suppression
  • Convergence time can be reduced by preventing the advertisement of all ip prefixes
  • Loopbacks, secondary addresses and passive interfaces are excluded as some designs require them to remain reachable
• Traffic engineering – changing the network type to manipulate the traffic path
  • Needed to change to p2m non-broadcast and add a cost on the neighbor commands to get the desired traffic path

BGP

• iBGP load balancing
  • Max path 2
  • Need to use a different RD for each iBGP peer when doing this in MPLS
  • The different RD affects how prefixes show up in the BGP table
    • If they are the same RD the best path is chosen even if there are 2 paths
    • By changing the RD to be something different and enabling max paths for ibgp you’ll be able to install  multiples ibgp routes
• Remember to configure next-hop-self on iBGP peers
• Practice AS-path ACL’s with regexp
  • How to create a filter to not become a transit
  • Only allow prefixes that are locally originated
• Traffic engineering techniques
  • AS-prepend – affects inbound path, but is applied out to the ebgp peer
  • Local preference – affects outbound path, but in applied inbound from the neighbor

Multicast

• Need to use static mroute when connecting across unsupported network with GRE tunnels
• RPF follows the unicast routing table to reach RP. Without adding a static mroute the RP is not learned by the routers
• OSPF cost can be used to manipulate the RPF to traffic go a desired path

ACL logging – log-input matches mac addresses

• Ip access-list log-update threshold 10
• Even though the question is regarding syslog, need to know the different options that may not be under the logging main command

NTP authentication

• Many steps to configure NTP authentication
• Need to create a key
• Tell NTP to authenticate
• Trust the authentication key
• Apply the key to peers if syncing between multiple NTP masters
• Must be applied for all devices and set on the server command

QOS

• Wording for shaping – delay for excess traffic, dropped as worse case
  • Policing would have said something along the lines of cir or change the dscp for exceeding traffic
• Random detect, different from tail-drop
  • Tail drop – default mechanism, packets get dropped from the queue when full
  • Random detect based on DSCP value
    • Weigted random early detections