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Routing protocol process (rpd) recursive resolution over multipath

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Routing protocol process (rpd) recursive resolution over multipath

When a BGP prefix that has a single protocol next hop is resolved over another BGP prefix that has multiple resolved paths (unilist), all the paths are selected for protocol next-hop resolution. In prior Junos OS releases, only one of the paths is picked for protocol next-hop resolution. This new feature benefits densely connected networks where BGP is used to establish infrastructure connectivity such as WAN networks with high equal-cost multipath and seamless MPLS topology. To configure recursive resolution over multipath, define a policy that includes the multipath-resolve action at the [edit policy-options policy-statement policy-name then] hierarchy level and import the policy at the [edit routing-options-resolution rib rib-name] hierarchy level. Currently, if you apply the policy on bgp.l2vpn.0 only, the RIB, also known as the routing table reflects recursively resolved multiple paths only in the control plane, you need to explicitly apply the policy on mpls.0 to reflect recursively resolved multiple paths on the data plane also.
Product / Application Software Introduced Release
MX5 Junos OS 17.3R1
MX10 Junos OS 17.3R1
MX40 Junos OS 17.3R1
MX80 Junos OS 17.3R1
MX104 Junos OS 17.3R1
MX204 Junos OS 18.2R1
MX240 Junos OS 17.3R1
MX301 Junos OS 25.4R1
MX304 Junos OS 22.2R3
MX480 Junos OS 17.3R1
MX960 Junos OS 17.3R1
MX2008 Junos OS 17.3R1
MX2010 Junos OS 17.3R1
MX2020 Junos OS 17.3R1
MX10003 Junos OS 18.2R1
MX10004 Junos OS 22.3R1
MX10008 Junos OS 18.2R1
MX10016 Junos OS 19.2R1
PTX1000 Junos OS 17.3R1
PTX3000 Junos OS 17.3R1
PTX5000 Junos OS 17.3R1
PTX10008 Junos OS 17.3R1
PTX10016 Junos OS 17.4R1
QFX5100 Junos OS 17.3R1
QFX5110 Junos OS 17.3R1
QFX5130-32CD Junos OS Evolved 20.3R1
QFX5130E-32CD Junos OS Evolved 23.4R2
QFX5130-48C Junos OS Evolved 23.4R1
QFX5130-48CM Junos OS Evolved 23.4R2
QFX5120-48T Junos OS 20.2R1
QFX5120-48YM Junos OS 20.4R1
QFX5200-32C Junos OS 17.3R1
QFX5210-64C Junos OS 18.1R1
QFX5220-32CD Junos OS Evolved 19.1R2
QFX5220-128C Junos OS Evolved 19.2R1
QFX5240-64QD Junos OS Evolved 23.4R2
QFX5240-64OD Junos OS Evolved 23.4R2
QFX5241-64OD Junos OS Evolved 23.4X100-D40
QFX5241-64QD Junos OS Evolved 23.4X100-D40
QFX5241-32OD Junos OS Evolved 23.4X100-D43
QFX5250-64OE-L Junos OS Evolved 25.2X100-D20
QFX10008 Junos OS 17.3R1
QFX10016 Junos OS 17.3R1
QFX10002-60C Junos OS 18.1R1
QFX5140-24CD8O Junos OS Evolved 25.2X100-D20