Here you have the best Alcatel-Lucent 4A0-107 practice exam questions
Which of the following are possible criteria for classifying packets at the network port ingress on the Alcatel-Lucent 7750 SR? (Choose three)
When classifying packets at the network port ingress on the Alcatel-Lucent 7750 SR, it is common to use criteria such as the EXP bits in the MPLS header, the packet's DSCP bits, and the dot1p bits in the frame header. These elements are typically used because they provide essential information for packet classification, which can be used for quality of service (QoS) and traffic management. The source and destination IP addresses, while useful for routing decisions, are not typically used as classification criteria at the port ingress in this context. The ID of an SDP that is transporting the packet is also not a standard criterion for packet classification at network port ingress.
Click the exhibit button below. Given the slope-policy (below), which of the following statements are TRUE? (Choose two)
When the shared buffer utilization reaches 55%, both in-profile and out-of-profile packets may be dropped. This is because in-profile traffic (low-slope) starts getting discarded when the average utilization reaches 10%, and out-of-profile traffic (high-slope) starts getting discarded when the average utilization reaches 50%. The maximum probability with which an out-of-profile packet can be dropped is higher than that of an in-profile packet. This is evident from the maximum probability values in the policy: 60% for high-slope (out-of-profile) and 80% for low-slope (in-profile).
To manage the shared buffer space at network ports, slope policies are applied on _________ for the ingress direction, and on ________ or _________ for the egress direction.
To manage the shared buffer space at network ports, slope policies are applied on ports for the ingress direction, and on ports or MDAs for the egress direction.
In the context of hierarchical scheduling, a scheduler is configured with a CIR weight of 0. Which of the following statements is TRUE?
In the context of hierarchical scheduling, the CIR (Committed Information Rate) weight indicates the priority of bandwidth allocation. If the scheduler has a CIR weight of 0, it means that it will not be allocated any bandwidth within the CIR because it has no guaranteed allocation. This makes option D the correct answer, as the scheduler with a CIR weight of 0 will not have its 'within CIR' bandwidth allocated.
When using an egress port scheduler, on which scheduling loop are orphaned queues serviced?
When using an egress port scheduler, orphaned queues are serviced at Level 8, once all PIR (Peak Information Rate) is serviced. This is because orphaned queues are typically given the lowest priority and are serviced only after all higher-priority queues (those within the PIR) have been attended to. This ensures that more critical traffic is handled first, and any leftover capacity is then used to process orphaned queues.