Load balancing modes
An HDLC link bundle forwards traffic through its Selected interfaces. When multiple Selected interfaces exist in an HDLC link bundle, the device chooses the Selected interfaces to forward traffic according to its load balancing mode.
The following load balancing modes are available:
Per-flow load balancing—Forwards packets of the same flow out of the same Selected interface. A flow is identified by match criteria.
For IPv4 and IPv6 packets, the match criteria include source IP address and destination IP address.
For MPLS packets, the match criteria are MPLS labels.
Per-packet load balancing—Distributes packets evenly across all Selected interfaces by using the round-robin method.