| Exam 400-101 | Question id=1134 | Layer 3 Technologies |
You issue the show pfr master border detail command on RouterA and receive the following output:
RouterA# show pfr master border detail
Border Status UP/DOWN AuthFail Version
10.1.1.2 ACTIVE UP 14:03:40 0 3.0
Et2/0 EXTERNAL UP
Et0/0 INTERNAL UP
Et1/0 EXTERNAL UP
External Capacity Max BW BW Used Load Status Exit Id
Interface (kbps) (kbps) (kbps) (%)
--------- -- -------- ------ ------- ---- ------ -------
Et2/0 Tx 1200 900 578 48 UP 2
Rx 1200 0 0
Et1/0 Tx 1200 900 386 32 UP 1
Rx 1200 231 19
What is the link utilization OOP threshold for traffic exiting RouterA?
| A. |
19% | |
| B. |
32% | |
| C. |
48% | |
| D. |
75% | |
| E. |
90% | |
| F. |
100% |
The link utilization outofpolicy (OOP) threshold for traffic exiting RouterA is 75%. Cisco Performance Routing (PfR) enhances traditional routing methods by dynamically selecting the best path for applications based on network performance. The show pfr master border detail command displays whether the PfR state is up or down. Additionally, the show pfr master border detail command displays statistics related to inbound and outbound traffic. The information next to Tx is related to outbound traffic, which is traffic that is transmitted by the router. The information next to Rx is related to inbound traffic, which is traffic that is received by the router.
If outbound traffic exceeds the link utilization OOP threshold, PfR will attempt to conformto policy levels by shifting traffic to other exit links. The link utilization OOP threshold for outbound traffic can be determined by issuing the show pfr master border detailcommand and dividing the maximum bandwidth by the capacity. In this scenario, the maximum bandwidth is 900 Kbps and the capacity is 1,200 Kbps? therefore, the link utilization OOP threshold is 75%. By default, the link utilization OOP threshold is set to 90%.
The link utilization OOP threshold is not 19%. The Ethernet1/0 interface is receiving traffic at 19% of the maximum bandwidth. The load percentage is calculated by dividing the bandwidth used by the maximum bandwidth.
The link utilization OOP threshold is not 32%. The Ethernet1/0 interface is sending traffic at 32% of the maximum bandwidth. Therefore, the traffic exiting the Ethernet1/0 interface is not exceeding the link utilization OOP threshold.
The link utilization OOP threshold is not 48%. The Ethernet2/0 interface is sending traffic at 48% of the maximum bandwidth. Therefore, the traffic exiting the Ethernet2/0 interface is not exceeding the link utilization OOP threshold.