Update custom route on Router not take effect

[Xurong Yang]

1. create a router
2. create a network with subnet 4.6.72.0/23
3. attach the above subnet to the router
4. update the router with route {destination: 4.6.72.0/23, nexthop: 4.6.72.10}, success
5. remove the above route from the router, success
6. update the router with the same route again, operation success, but the route isn't added to the router namespace, so not take effect

This problem is caused by removing the connected route, so when adding the route the second time, "ip route replace" command fail.

I think we need to restrict the modification of connected route.

[Malini Bhandaru (malini-k-bhandaru)]

Goof test .. please test whether introducing a step 5.5 "attach the subnet to the router" (your step 3) before the step 6 route add helps. Wondering if the remove deleted memory of the subnet. Or was the problem the verb "replace" versus add.

[Liping Mao (limao)]

Hi Yang,

I think this problem is caused by "add a route the same with connected route".
Maybe , we need to check if it is the same route with connected route when you add route?

Regards,
Liping Mao

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/124698

[OpenStack Infra (hudson-openstack)]

Change abandoned by Salvatore Orlando (<email address hidden>) on branch: master
Review: https://review.openstack.org/124698
Reason: This patch has been inactive long enough that I think it's safe to abandon.
The author can resurrect it if needed.

[Armando Migliaccio (armando-migliaccio)]

This bug is > 172 days without activity. We are unsetting assignee and milestone and setting status to Incomplete in order to allow its expiry in 60 days.

If the bug is still valid, then update the bug status.

[Launchpad Janitor (janitor)]

[Expired for neutron because there has been no activity for 60 days.]

[Kengo Hobo (hobo-kengo)]

I think the bug is still valid.
I'll try to take it.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/398004

[OpenStack Infra (hudson-openstack)]

Change abandoned by Armando Migliaccio (<email address hidden>) on branch: master
Review: https://review.openstack.org/398004
Reason: This review is > 4 weeks without comment, and failed Jenkins the last time it was checked. We are abandoning this for now. Feel free to reactivate the review by pressing the restore button and leaving a 'recheck' comment to get fresh test results.

[Rodolfo Alonso (rodolfo-alonso-hernandez)]

Bug closed due to lack of activity, please feel free to reopen if needed.