12-19-2019 10:49 AM
What does the command clear ipv6 ospf process accomplish?
A. The OSPF adjacencies are cleared and initiated again.
B. The route table is cleared. Then the OSPF neighbors are reformed.
C. The shortest path first (SPF) algorithm is performed on the LSA database.
D. The OSPF database is repopulated. Then the shortest path first (SPF) algorithm is performed.
Correct Answer: D
I believe answer A. any suggestions?
12-19-2019 10:54 AM
@sivam siva Hello
Correctly answer is D.
Look more here:https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipv6/command/ipv6-cr-book/ipv6-c1.html
12-19-2019 12:16 PM - edited 12-19-2019 12:20 PM
Thanks for the reply
Below is my Lab test where you can see the adjacencies are cleared and formed again.
R1#cle ipv6 ospf process
Reset ALL OSPF processes? [no]: y
*Mar 1 00:03:06.539: %OSPFv3-5-ADJCHG: Process 1, Nbr 2.2.2.2 on FastEthernet0/0 from FULL to DOWN, Neighbor Down: Interface down or detached
*Mar 1 00:03:06.679: %OSPFv3-5-ADJCHG: Process 1, Nbr 2.2.2.2 on FastEthernet0/0 from LOADING to FULL, Loading Done
So ans A should be more correct right?!
12-19-2019 03:07 PM
here is command reference:
To clear the Open Shortest Path First (OSPF) state based on the OSPF routing process ID, use the cl ear ipv6 ospf command in privileged EXEC mode.
clear ipv6 ospf [process-id] {process | force-spf | redistribution}
process-id |
(Optional) Internal identification. It is locally assigned and can be any positive integer. The number used here is the number assigned administratively when enabling the OSPF routing process. |
process |
Restarts the OSPF process. |
force-spf |
Starts the shortest path first (SPF) algorithm without first clearing the OSPF database. |
redistribution |
Clears OSPF route redistribution. |
12-19-2019 10:15 PM
The correct answer is D as the command is getting executed with "process" key word which restarts the entire process. Hence, clearing and re-forming adjacencies is just subset of whole "process".
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