DM: Inter-VxLAN routing broken 'cause IRB not added to L3 VRF

[amit surana]

Changes made for 1472699 inadvertently removed the IRB interface from the L3 VRF. This breaks inter-VxLAN routing.

root@cmbu-tasman# show routing-instances _contrail_l3_127_vn2
instance-type vrf;
interface irb.127 # THIS config is missing.
vrf-import _contrail_l3_127_vn2-import;
vrf-export _contrail_l3_127_vn2-export;
vrf-table-label;
routing-options {
    static {
        route 1.1.2.0/24 discard;
    }
    auto-export {
        family inet {
            unicast;
        }
    }
}

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/13922
Submitter: Suresh Balineni (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/13922
Committed: http://github.org/Juniper/contrail-controller/commit/cc7a396b2ea50728f042ae0519ea013070db3f74
Submitter: Zuul
Branch: R2.20

commit cc7a396b2ea50728f042ae0519ea013070db3f74
Author: sbalineni <email address hidden>
Date: Fri Sep 18 15:45:30 2015 -0700

DM: irb interface has to be present for l3 vrf

Change-Id: Ia8e785ab9ee59194daf7bb045d69efc74d6c4480
Closes-Bug: #1497465

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/13932
Submitter: Suresh Balineni (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/13932
Committed: http://github.org/Juniper/contrail-controller/commit/99c218dc74dc3ad8299d80334dc48424cb0cecd5
Submitter: Zuul
Branch: master

commit 99c218dc74dc3ad8299d80334dc48424cb0cecd5
Author: sbalineni <email address hidden>
Date: Sun Sep 20 21:37:13 2015 -0700

DM: irb ip address allocation is required for external VN if fwd mode is l2_l3

- redundant filter terms should be removed for l2_l3 VN.
- irb interface has to be present for l3 vrf

Change-Id: I950ffb035be0a4a15a02133c24a618d3d972eb86
Closes-Bug: #1497486
Closes-Bug: #1497465