Your enterprise network uses routing instances to support multitenancy. Your Junos devices use BGP to peer to multiple BGP devices. You must ensure that load balancing is achieved within the routing instance.
Which two statements would accomplish this task? (Choose two.)
To achieve load balancing within a routing instance in a network that uses BGP peering, it's necessary to configure both multipath and load balancing policies. Configuring the multipath option under the [edit routing-instances <instance-name> routing-options] hierarchy ensures that the routing instance can handle multiple paths for BGP routes. Additionally, configuring a load-balance per-packet policy and applying it under the [edit routing-options forwarding-table] hierarchy ensures that traffic is distributed effectively across available paths. These configurations allow for optimal distribution of traffic within the routing instance.
Fortunately, the Juniper Networks BGP implementation supports the notion of a bandwidth community. This extended community encodes the bandwidth of a given next hop, and when combined with multipath, the load-balancing algorithm distributes flows across the set of next hops proportional to their relative bandwidths. Put another way, if you have a 10-Mbps and a 1-Mbps next hop, on average nine flows will map to the high-speed next hop for every one that uses the low speed. Use of BGP bandwidth community is supported only with per-packet load balancing. The configuration task has two parts: Configure the external BGP (EBGP) peering sessions, enable multipath, and define an import policy to tag routes with a bandwidth community that reflects link speed. Enable per-packet (really per-flow) load balancing for optimal distribution of traffic. https://www.juniper.net/documentation/us/en/software/junos/bgp/topics/topic-map/load-balancing-bgp-session.html
i was wrong, actually is CD: To enable these features on a Layer 3 VPN routing instance, include the vpn-unequal-cost equal-external-internal statement at the [edit routing-instances routing-instance-name routing-options multipath] hierarchy level and the vrf-table-label statement at the [edit routing-instances routing-instance-name] hierarchy level.
CD the question asked for load balancing within routing instance, not just BGP
should be c n d
c and d it is
Answer is CD. https://www.juniper.net/documentation/us/en/software/junos/vpn-l3/topics/topic-map/l3-vpns-load-balancing.html
Should be B and C.
I think should be C and D, because of using multipath inside L3VPN https://www.juniper.net/documentation/us/en/software/junos/vpn-l3/topics/ref/statement/multipath-edit-routing-options.html
B,C [edit protocols bgp group external] user@R1# set multipath [edit policy-options policy-statement loadbal] user@R1# set from route-filter 10.0.0.0/16 orlonger user@R1# set then load-balance per-packet Apply the load-balancing policy. content_copy zoom_out_map [edit routing-options] user@R1# set forwarding-table export loadbal
BC https://www.juniper.net/documentation/us/en/software/junos/bgp/topics/topic-map/load-balancing-bgp-session.html
Should be BC