Characteristics of Load-Balancing Implementation on a Junos Device

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Load balancing is a method of distributing network traffic across multiple links to avoid link congestion and improve network performance. In Junos devices, load balancing is typically implemented through the use of ECMP (Equal Cost Multipath) or LAG (Link Aggregation Group) technologies. Here are the characteristics of load balancing implementation on a Junos device:

B. It balances packets on a per-flow basis: Junos load balancing implementation balances packets on a per-flow basis. A flow is a unidirectional sequence of packets that share the same source IP address, destination IP address, source port, destination port, and protocol. The Junos device can distribute traffic across multiple links based on the flow, ensuring that packets in the same flow take the same path to avoid out-of-order packets and other issues.

C. It is enabled through a policy: Load balancing is not enabled by default in Junos devices. Instead, it is configured through a policy. The policy defines the criteria for selecting which traffic should be load balanced and how it should be distributed across the available links. For example, a policy might balance traffic based on the source IP address or the destination port.

In conclusion, the two characteristics of load-balancing implementation on a Junos device are that it balances packets on a per-flow basis and it is enabled through a policy.