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zebra: Eliminate use of imported arp entries as next-hops for other routes

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Ticket: CM-8228
Signed-off-by: Donald Slice
Reviewed By:
Testing Done: Manual testing succesful. bgp-min and ospf-smoke successful. redistribute-neighbor-smoke
has the same failures as the base image.

Problem was due to considering imported /32 arp entries as elible next-hops for other routes
(in this case a static route.)  This confuses the rib since this next-hop is considered both
recursive and  onlink.  Disallowed the use of this imported arp entry in next-hop determination.
This commit is contained in:
Don Slice 2016-07-15 06:33:48 -07:00
parent 7fb21a9f98
commit 633e504d0a
1 changed files with 4 additions and 0 deletions
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4
zebra/zebra_rib.c
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@ -405,6 +405,10 @@ nexthop_active_ipv4 (struct rib *rib, struct nexthop *nexthop, int set,
{
if (CHECK_FLAG (match->status, RIB_ENTRY_REMOVED))
continue;
/* if the next hop is imported from another table, skip it */
if (match->type == ZEBRA_ROUTE_TABLE)
continue;
if (CHECK_FLAG (match->flags, ZEBRA_FLAG_SELECTED))
break;
}