Hello! I'm trying to increase the efficiency of ECMP on links between cities without static routes. On the same physical network (routers and links) I'm trying to run multiple independent OSPF protocols area 0 with different IDs (instance id). Example config file: protocol ospf v2 igpcore4 { ipv4 { table igpcoret4; import filter { ospf_metric1 = 100; accept; }; export all; }; ecmp on limit 12; merge external on; area 0.0.0.0 { interface "A2.1" { type pointopoint; bfd on; ecmp weight 10; cost 1000; }; interface "A2.2" { type pointopoint; bfd on; ecmp weight 10; cost 1000; }; interface "A3.1" { type pointopoint; bfd on; ecmp weight 10; cost 1000; }; interface "A3.2" { type pointopoint; bfd on; ecmp weight 10; cost 1000; }; interface "A1.1" { type pointopoint; bfd on; ecmp weight 10; cost 500; }; interface "A1.2" { type pointopoint; bfd on; ecmp weight 10; cost 500; }; }; }; protocol ospf v2 igpcore4_1 { ipv4 { table igpcoret4; import filter { ospf_metric1 = 100; accept; }; export all; }; ecmp on limit 12; merge external on; instance id 1; area 0.0.0.0 { interface "A2.1" { type pointopoint; bfd on; ecmp weight 10; cost 500; }; interface "A2.2" { type pointopoint; bfd on; ecmp weight 10; cost 500; }; interface "A3.1" { type pointopoint; bfd on; ecmp weight 10; cost 500; }; interface "A3.2" { type pointopoint; bfd on; ecmp weight 10; cost 500; }; interface "A1.1" { type pointopoint; bfd on; ecmp weight 10; cost 1000; }; interface "A1.2" { type pointopoint; bfd on; ecmp weight 10; cost 1000; }; }; }; I got this results area 0 instance 0 in protocol igpcore4 and area 0 instance 1 in protocol igpcore4_1 BIRD 2.0.9 ready. bird> show route for 10.10.97.33/32 all Table igpcoret4: 10.10.97.33/32 unicast [igpcore4_1 11:58:31] * E2 (150/100/10000) [10.10.97.33] via 10.112.0.1 on A2.1 weight 10 via 10.112.0.3 on A2.2 weight 10 via 10.112.0.5 on A3.1 weight 10 via 10.112.0.7 on A3.2 weight 10 Type: OSPF-E2 univ OSPF.metric1: 100 OSPF.metric2: 10000 OSPF.tag: 0x00000000 OSPF.router_id: 10.10.97.33 unicast [igpcore4 11:58:31] E2 (150/100/10000) [10.10.97.33] via 10.112.0.1 on A2.1 weight 10 via 10.112.0.3 on A2.2 weight 10 via 10.112.0.5 on A3.1 weight 10 via 10.112.0.7 on A3.2 weight 10 via 10.112.0.9 on A1.1 weight 10 via 10.112.0.11 on A1.2 weight 10 Type: OSPF-E2 univ OSPF.metric1: 100 OSPF.metric2: 10000 OSPF.tag: 0x00000000 OSPF.router_id: 10.10.97.33 How to megre these routes and get a single route with 6 next hops interfaces.... Maybe via pipe or other variants? -- Regards, Mikhail V. Majorov