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An understanding of the following key
points should have been achieved:
- The
show ip route
command
- Determining the gateway of last
resort
- Determining the route source and
destination address
- Determining route administrative
distance
- Determining route metric
- Determining route next hop
- Determining last route update
- Observing multiple paths to
destination
- Using a structured approach to
troubleshooting
- Testing by OSI layers
- Layer 1 troubleshooting using
indicators
- Layer 3 troubleshooting using ping
- Layer 7 troubleshooting using Telnet
- Troubleshooting Layer 1 using
show interfaces
- Troubleshooting Layer 2 using
show interfaces
- Troubleshooting using show
cdp
- Troubleshooting using
traceroute
- Troubleshooting routing issues using
show ip route
and show ip protocols
- Troubleshooting using
show controllers serial
- Troubleshooting using
debug
commands
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