CCNP Troubleshooting (300-135) Cert Prep

1. CCNP TSHOOT 300-135: Switching and EC Fundamentals

• Checking the fundamentals
• Port security fundamentals
• Port security static addressing lab
• Port security with multiple secure addresses
• The errdisable recovery feature (or is it?)
• Speaking of trunking
• More trunking!
• EtherChannel fundamentals
• Things that don't play well with EtherChannel
• EtherChannel negotiation protocols

2. CCNP TSHOOT 300-135: Advanced Switching Options

• Switching section open
• PortFast
• UplinkFast
• BackboneFast
• Root guard
• Bridge protocol data unit (BPDU) guard
• BPDU filter and root guard
• Unidirectional link detection (UDLD)
• Rapid Spanning Tree Protocol (RSTP) theory
• RSTP synch and compatibility
• Common Spanning Tree (CST), Multiple Spanning Tree (MST), and Per-VLAN Spanning Tree (PVST)

3. CCNP TSHOOT 300-135: Analyzing And Troubleshooting OSPF

• The fundamentals
• Fun with hello and dead timers
• Network masking and point-to-point links
• Nonbroadcast multiple access (NBMA) configuration and troubleshooting
• Virtual links: Yea or nay?
• Virtual links: Building and troubleshooting
• Authentication labs begin
• Debugging and troubleshooting a password authentication mismatch
• Spotting and fixing an authentication type mismatch
• Area authentication and interface-level authentication
• Virtual links and authentication
• Passive and nonpassive interfaces
• The maximum transmission unit (MTU)
• Stub areas and router IDs (RIDs)

4. CCNP TSHOOT 300-135: Enhanced Interior Gateway Routing Protocol (EIGRP)

• The network and frame map commands
• Masks, timers, and flapping links
• K values and passive interfaces
• More passive interfaces
• Load balancing, traceroutes, and pings
• Splitting your horizons
• Creating subinterfaces from not quite scratch
• Conclusion of the subinterface creation lab

5. CCNP TSHOOT 300-115: Route Redistribution

• To autoredistribute (or not)
• EIGRP > Routing Information Protocol (RIP)
• Testing and troubleshooting with pings and traces
• RIP and EIGRP
• Open Shortest Path First (OSPF)
• Fine-tuning with route maps, part 1
• Fine-tuning with route maps, part 2

6. TSHOOT 300-115: The Hot Standby Routing Protocol

• The fundamentals
• Preemption and testing
• Interface tracking lab begins
• Interface tracking lab concludes
• Route tracking lab begins
• Route tracking lab concludes

7. CCNP TSHOOT 300-115: Access Control Lists (ACLs)

• A refresher
• Named ACLs and placement
• Line order, placement, and... notepad?
• Network Address Translation (NAT) lab begins
• NAT lab concludes
• Time range time!
• More time ranges
• The Network Time Protocol (NTP)
• NTP authentication

8. CCNP TSHOOT 300-115: Border Gateway Protocol (BGP)

• Intro remarks
• External BGP (eBGP) peering
• Internal BGP (iBGP) peering and loopback interfaces
• eBGP peering and loopback interfaces
• Advertising routes with the network command
• The origin and next hop attributes
• BGP best path selection process
• The mystery of the next hop address
• Mystery solved!
• The Multi-Exit Discrimator (MED)
• Local preference: All or nothing at all
• Local preference: Changing one, but not all
• Carry that weight (attribute)
• More weight
• Route summarization and advertisements
• Synch rules and the full mesh
• The why and how of route reflectors
• Prefix lists, part 1
• Prefix lists, part 2
• Success tips

9. TSHOOT 300-135: VPNs and VRF-lite

• The dreaded but necessary theory
• Internet Key Exchange (IKE) phase 1 in action
• Configuring IPsec security associations (SAs)
• IPsec SA lab continues
• A dash of dynamic multipoint virtual private network (DMVPN)
• Virtual route forwarding (VRF) lab begins
• VRF lab continues
• VRF lab concludes
• The VRF that goes ping
• Troubleshooting tips