[VNET]Fixing nexthop group delete during route change (#2198)

dgsudharsan · qiluo-msft · commit fca407a02c9b · 2022-03-29T23:48:32.000Z
*[Overlay ECMP] Fix for VNET with nexthop group is replaced with a single nexthop
diff --git a/orchagent/vnetorch.cpp b/orchagent/vnetorch.cpp
@@ -939,7 +939,7 @@ bool VNetRouteOrch::doRouteTask<VNetVrfObject>(const string& vnet, IpPrefix& ipP
             NextHopGroupKey nhg = it_route->second;
             if(--syncd_nexthop_groups_[vnet][nhg].ref_count == 0)
             {
-                if (nexthops.getSize() > 1)
+                if (nhg.getSize() > 1)
                 {
                     removeNextHopGroup(vnet, nhg, vrf_obj);
                 }

Original file line number	Diff line number	Diff line change
`@@ -939,7 +939,7 @@ bool VNetRouteOrch::doRouteTask<VNetVrfObject>(const string& vnet, IpPrefix& ipP`
`939`	`939`	`NextHopGroupKey nhg = it_route->second;`
`940`	`940`	`if(--syncd_nexthop_groups_[vnet][nhg].ref_count == 0)`
`941`	`941`	`{`
`942`		`- if (nexthops.getSize() > 1)`
	`942`	`+ if (nhg.getSize() > 1)`
`943`	`943`	`{`
`944`	`944`	`removeNextHopGroup(vnet, nhg, vrf_obj);`
`945`	`945`	`}`