Which three parameters are used by the Junos OS to distinguish traffic flows for load balancing with load-balance per-packet configured? (Choose three).
A.
incoming interface
B.
destination address
C.
destination port
D.
source address
E.
source port
Explanation:
Note: Per-packet load distribution uses a hashing algorithm that distributes packets over equal-cost links. The algorithm is designed to distribute packets to prevent any single link from being saturated. However, per-packet load balancing offers no guarantee of equal distribution of traffic over equal-cost links, nor does it guarantee that increasing the number of Internet flows creates a better hash distribution.On routers with the Internet Processor II ASIC and T-series Internet Processor II ASIC, when per-packet load balancing is configured, traffic between routers with multiple paths is divided into individual traffic flows (up to a maximum of 16 equal-cost load-balanced paths). Packets for each individual flow are kept on a single interface. To recognize individual flows in the transit traffic, the router examines each of the following:
* Source IP address
* Destination IP address
* Protocol
* Source port number
* Destination port number
* Source interface index
* Type of service (ToS)The router recognizes packets in which all of these parameters are identical, and it ensures that these packets are sent out through the same interface. This prevents problems that might otherwise occur with packets arriving at their destination out of their original sequence.