I am testing BGP ECMP and underlay advertised loopback under with ECMP which correct, the issue can't figure out how to set target or target-scope to make second link as backup (172.41.100.0/24).
Is there are anything possible to use with filters to accommodate second link be as backup ?
Setup:
iBGP
BL route table
Code: Select all
[admin@BL-SL-RT-1] > /ip/route/print detail
Flags: D - dynamic; X - disabled, I - inactive, A - active; c - connect, s - static, r - rip, b - bgp, o - ospf, i - is-is, d - dhcp, v - vpn, m - modem, y - bgp-mpls-vpn; H - hw-offloaded; + - ecmp
DAd dst-address=0.0.0.0/0 routing-table=main pref-src="" gateway=10.41.100.1 immediate-gw=10.41.100.1%MGMT-V313-eth10 distance=1 scope=30 target-scope=10 vrf-interface=MGMT-V313-eth10 suppress-hw-offload=no
DAc dst-address=10.41.100.0/24 routing-table=main gateway=MGMT-V313-eth10 immediate-gw=MGMT-V313-eth10 distance=0 scope=10 suppress-hw-offload=no local-address=10.41.100.152%MGMT-V313-eth10
DAc dst-address=172.27.100.5/32 routing-table=C-L2-DCI gateway=loop0@C-L2-DCI immediate-gw=loop0 distance=0 scope=10 suppress-hw-offload=no local-address=172.27.100.5%loop0@C-L2-DCI
DAb + dst-address=172.27.100.6/32 routing-table=C-L2-DCI gateway=172.41.100.4@C-L2-DCI immediate-gw=172.41.100.4%D-L2-br0 distance=200 scope=40 target-scope=30 suppress-hw-offload=no
DAb + dst-address=172.27.100.6/32 routing-table=C-L2-DCI gateway=172.40.100.4@C-L2-DCI immediate-gw=172.40.100.4%D-L2-br0 distance=200 scope=40 target-scope=30 suppress-hw-offload=no
DAc dst-address=172.40.100.0/28 routing-table=C-L2-DCI gateway=D-L2-br0@C-L2-DCI immediate-gw=D-L2-br0 distance=0 scope=10 suppress-hw-offload=no local-address=172.40.100.5%D-L2-br0@C-L2-DCI
DAc dst-address=172.41.100.0/28 routing-table=C-L2-DCI gateway=D-L2-br0@C-L2-DCI immediate-gw=D-L2-br0 distance=0 scope=10 suppress-hw-offload=no local-address=172.41.100.5%D-L2-br0@C-L2-DCI