Statement introduced in Junos OS Release 15.1X49-D160.
Multipath identifies two or more paths based on the SLA configuration and triggers a copy of the original traffic on all the identified paths.
You can configure multipath rules for specific application traffic and then associate multipath rules with SLA rules. Multipath routing obtains the underlay link types and corresponding overlays on which packet duplication is required based on the SLA rule. Based on the application traffic and the configured bandwidth limit, multipath identifies two or more paths and triggers a copy of the original traffic on all the identified paths.
Multipath rule is applied on the matching traffic and forwarded to and the next-hop address as specified in the routing instance.
When traffic reaches on receiving end, the receiving device accepts packets of a session arriving through different links, and maintains sequence of a packet arriving on different CoS queues and drops any duplicate packets.
Range: 0 through 100
Default: 50 percent
Multipath routing copies packets on all the links belonging to the multipath routing rule till the bandwidth limit is reached. The bandwidth limit is calculated based on the least link speed identified for that rule. This is applicable for all sessions for all applications that match the multipath routing rule. Once the limit is reached, multipath routing stops copying of packets and starts a timer for a time period as configured in max-time-wait option in the multipath routing configuration. When the timer expires, it restarts the copying of the packets again.
Range: 1 through 60 seconds
Default: 10 seconds
Range: 2 through 16
Required Privilege Level
services—To view this statement in the configuration.
services-control—To add this statement to the configuration.