Commit 8e86ffce authored Jul 01, 2018 by Ondrej Zajicek (work)

BGP: Use implicit-NULL label when announcing MPLS routes with local next-hop

We currently cannot assing local labels, but we can still be LSP egress
router. Therefore when we announce labeled route with local next-hop, we
should announce implicit-NULL label instead of rejecting it completely.

parent 93c1defd

proto/bgp/packets.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -875,7 +875,10 @@ bgp_update_next_hop_ip(struct bgp_export_state s, eattr a, ea_list **to)

		/* TODO: Use local MPLS assigned label */
		if (s->mpls)
		bgp_unset_attr(to, s->pool, BA_MPLS_LABEL_STACK);
		{
		u32 implicit_null = BGP_MPLS_NULL;
		bgp_set_attr_data(to, s->pool, BA_MPLS_LABEL_STACK, 0, &implicit_null, 4);
		}
		}
		}

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