SRLinkFailure at 16 Sep 2021 21:28:40

<img src="https://jenkins.onosproject.org/view/QA/job/postjob-Fabric4/lastSuccessfulBuild/artifact/SRLinkFailure-stratum_master_20-builds_graph.jpg", alt="SRLinkFailure-stratum", style="width:525px;height:350px;border:0">
commit 5d64c56dc1acd6d03a44ba499d475459b1eacb15 (HEAD -] master, origin/master, origin/HEAD)
Author: pierventre [pier@opennetworking.org]
AuthorDate: Thu Sep 16 15:03:41 2021 +0200
Commit: Pier Luigi Ventre [pier@opennetworking.org]
CommitDate: Thu Sep 16 16:48:03 2021 +0000

Protect event handler from the exceptions
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(cherry picked from commit 6bfdeb3215247561313a083d4131fc77d9c3792e)

Case 1: Bridging and Routing Link Failure test with 2x2 leaf-spine topology and 1 Onos - FAIL

Case 2: Bridging and Routing Link Failure test with 4x4 dual-homed leaf-spine topology and 1 Onos - FAIL

Case 4: Bridging and Routing Link Failure test with 2x2 leaf-spine topology and 3 Onos - FAIL

Case 5: Bridging and Routing Link Failure test with 4x4 dual-homed leaf-spine topology and 3 Onos - FAIL