[EVPN VXLAN]: TSN HA : During TSN switchover agent stop sending IM route to CN

[chhandak]

When stop and starting the active TSN some time agent is not sending IM (EVPN Type 3) route to CN.
In turn, QFX is not having IM route for that respective TSN.

root@5b11-qfx2# run show route table default-switch.evpn.0 | grep 3:
3:172.16.2.1:1::4::172.16.2.1/248 IM
                   *[EVPN/170] 03:46:35
3:172.16.3.1:1::4::172.16.3.1/248 IM
3:172.16.180.101:2::4::172.16.180.101/248 IM >>>>> Active TSN
3:172.16.180.102:2::4::172.16.180.102/248 IM
3:172.16.180.103:2::4::172.16.180.103/248 IM >>>>> Backup TSN

Stopping and starting the active TSN

service contrail-vrouter-agent stop
service contrail-vrouter-agent start

root@5b11-qfx2# run show route table default-switch.evpn.0 | grep 3:
3:172.16.2.1:1::4::172.16.2.1/248 IM
                   *[EVPN/170] 03:49:20
3:172.16.3.1:1::4::172.16.3.1/248 IM
3:172.16.180.102:2::4::172.16.180.102/248 IM
3:172.16.180.103:2::4::172.16.180.103/248 IM >>>> IM route for 172.16.180.101 missing

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/37572
Submitter: Manish Singh (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/37572
Committed: http://github.com/Juniper/contrail-controller/commit/236dad449e496649e6c69eafcb1991d4e5f7d957
Submitter: Zuul (<email address hidden>)
Branch: R4.1

commit 236dad449e496649e6c69eafcb1991d4e5f7d957
Author: Manish <email address hidden>
Date: Thu Nov 16 12:32:35 2017 +0530

Multicast unsubscribed after subscribing.

This happens because route table subscribe walk is started without initializing
type of walk. In that case disassociate is issued resulting in unsubscription.
This issue will happen if this walk requests are processed after route
notification in controller. Notification would have done sub but walk will
unsub. If walk finishes before route notification then issue is not seen.

Change-Id: I9a3d02d901a1d9cb4f2755e5c6254231f35f13f7
Closes-bug: #1732394

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/37838
Submitter: Hari Prasad Killi (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/37838
Committed: http://github.com/Juniper/contrail-controller/commit/4ccd1c1bd344a99d27d5665d109797d9046dfeff
Submitter: Zuul (<email address hidden>)
Branch: master

commit 4ccd1c1bd344a99d27d5665d109797d9046dfeff
Author: Manish <email address hidden>
Date: Thu Nov 16 12:32:35 2017 +0530

Multicast unsubscribed after subscribing.

This happens because route table subscribe walk is started without initializing
type of walk. In that case disassociate is issued resulting in unsubscription.
This issue will happen if this walk requests are processed after route
notification in controller. Notification would have done sub but walk will
unsub. If walk finishes before route notification then issue is not seen.

Change-Id: I9a3d02d901a1d9cb4f2755e5c6254231f35f13f7
Closes-bug: #1732394
(cherry picked from commit 236dad449e496649e6c69eafcb1991d4e5f7d957)

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/37878
Submitter: Hari Prasad Killi (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/37879
Submitter: Hari Prasad Killi (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/37878
Committed: http://github.com/Juniper/contrail-controller/commit/29d31d7db0997c0aafb2eba3cac2df7fa2c2fa9a
Submitter: Zuul (<email address hidden>)
Branch: R3.1

commit 29d31d7db0997c0aafb2eba3cac2df7fa2c2fa9a
Author: Hari Prasad Killi <email address hidden>
Date: Mon Nov 27 13:59:40 2017 +0530

Multicast unsubscribed after subscribing

This happens because route table subscribe walk is started without initializing
type of walk. In that case disassociate is issued resulting in unsubscription.
This issue will happen if this walk requests are processed after route
notification in controller. Notification would have done sub but walk will
unsub. If walk finishes before route notification then issue is not seen.

Change-Id: I9a3d02d901a1d9cb4f2755e5c6254231f35f13f7
Closes-bug: #1732394

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/37879
Committed: http://github.com/Juniper/contrail-controller/commit/c4ddad049a007f8ecd0128cc4915b7dcef423cc7
Submitter: Zuul (<email address hidden>)
Branch: R3.2

commit c4ddad049a007f8ecd0128cc4915b7dcef423cc7
Author: Hari Prasad Killi <email address hidden>
Date: Mon Nov 27 13:59:40 2017 +0530

Multicast unsubscribed after subscribing

This happens because route table subscribe walk is started without initializing
type of walk. In that case disassociate is issued resulting in unsubscription.
This issue will happen if this walk requests are processed after route
notification in controller. Notification would have done sub but walk will
unsub. If walk finishes before route notification then issue is not seen.

Change-Id: I9a3d02d901a1d9cb4f2755e5c6254231f35f13f7
Closes-bug: #1732394