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ICND2
Troubleshooting IPv4 Routing Protocols
22
Computer Networking
11th Grade
01/20/2019

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Cards

Term
ip hello-interval eigrp
as-number timer-value
Definition
Interface subcommand that sets the EIGRP Hello
interval for that EIGRP process
Term
ip hold-time eigrp as-number
seconds
Definition
Interface subcommand that sets the EIGRP hold time for
the interface
Term
ip ospf hello-interval seconds
Definition
Interface subcommand that sets the interval for periodic
Hellos
Term
ip ospf dead-interval number
Definition
Interface subcommand that sets the OSPF dead timer
Term
passive-interface type number
Definition
Router subcommand, for both OSPF and EIGRP that
tells the routing protocol to stop sending Hellos and stop
trying to discover neighbors on that interface
Term
show ip protocols
Definition
Shows routing protocol parameters and current timer values,
including an effective copy of the routing protocols’ network
commands and a list of passive interfaces
Term
show ip eigrp interfaces
Definition
Lists the interfaces on which EIGRP has been enabled for each
EIGRP process, except passive interfaces
Term
show ip route eigrp
Definition
Lists only EIGRP-learned routes from the routing table
Term
show ip eigrp neighbors
Definition
Lists EIGRP neighbors and status
Term
show ip ospf interface
brief
Definition
Lists the interfaces on which the OSPF protocol is enabled
(based on the network commands), including passive
interfaces
Term
show ip ospf interface
[type number]
Definition
Lists detailed OSPF settings for all interfaces, or the listed
interface, including Hello and dead timers and OSPF area
Term
show ip route ospf
Definition
Lists routes in the routing table learned by OSPF
Term
show ip ospf neighbor
Definition
Lists neighbors and current status with neighbors, per
interface
Term
show ip ospf
Definition
Lists a group of messages about the OSPF process itself,
listing the OSPF Router ID in the first line
Term
show interfaces
Definition
Lists a long set of messages, per interface, that lists
configuration, state, and counter information
Term
show interfaces
description
Definition
Lists one line of output per interface with brief status
information
Term
debug eigrp packets
Definition
Lists log messages for EIGRP packets that flow in and out of the
router
Term
debug ip ospf adj
Definition
Issues log messages for adjacency events, meaning events related to
routers becoming neighbors
Term
debug ip ospf events
Definition
Issues log messages for each action taken by OSPF, including the
receipt of messages
Term
debug ip ospf packet
Definition
Issues log messages describing the contents of all OSPF packets
Term
debug ip ospf hello
Definition
Issues log messages describing Hellos and Hello failures
Term
undebug all
Definition
EXEC command used to disable all current debugs
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