tree 610292c5f4b071790a9fba7bcd77f68934a31809
parent 7e7a101dde5969f62074801d84bb4cc75e50f548
author Timo Teräs <timo.teras@iki.fi> 1460211752 +0300
committer Donald Sharp <sharpd@cumulusnetworks.com> 1461328600 -0400

zebra: handle multihop nexthop changes properly

The rib entries are normally added and deleted when they are
changed. However, they are modified in placae when the nexthop
reachability changes. This fixes to:
 - properly detect nexthop changes from nexthop_active_update()
   calls from rib_process()
 - rib_update_kernel() to not reset FIB flags when a RIB entry
   is being modifed (old and new RIB are same)
 - improves the "show ip route <prefix>" output to display
   both ACTIVE and FIB flags for each nexthop

Fixes: 325823a5 "zebra: support FIB override routes"
Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Reported-By: Igor Ryzhov <iryzhov@nfware.com>
Tested-by: NetDEF CI System <cisystem@netdef.org>