Preparing Practice Exam…
Please wait a moment while the system generates the exam questions, answers, and study session.
Please wait a moment while the system generates the exam questions, answers, and study session.
Implementing and Operating Cisco Enterprise Network Core Technologies (ENCOR) · Cisco
Select one answer.
Written by other learners. Comments can disagree with the marked answer — check the official documentation when in doubt.
Cuanto menor sea el valor numérico de la prioridad del puerto, mayor será la prioridad de ese puerto. En otras palabras, debemos cambiar la port-priority en Gi0/1 de SW1 (no en Gi0/1 de SW2) a un valor menor que el de Gi0/0.
Tal vez la simulacion tiene sentido con un sw cat: https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst9300/software/release/16-5/configuration_guide/lyr2_lyr3/b_165_lyr2_lyr3_9300_cg/b_165_lyr2_lyr3_9300_9500_cg_chapter_00.html The port priority in Spanning Tree Protocol (STP) determines the role of a port when multiple paths to the root bridge exist. The range for port priority is 0 to 240, with increments of 16, and the default value is 128. The priority works as follows: Lower values mean higher priority. For example, a port with a priority of 16 will be preferred over a port with a priority of 128 if the costs to the root bridge are the same. Invalid values (not in increments of 16) are rejected. Valid priorities: 0, 16, 32, 48, 64, 80, 96, 112, 128, 144, 160, 176, 192, 208, 224, 240
To influence the root port election on SW2, we need to adjust the port priority on the upstream switch (SW1,) local port priority values on SW2 don't matter. The lower the port priority value, the higher the priority. By default, the port priority is 128, with valid values ranging between 0, and 240 in increments of 32. When multiple paths to the root bridge have the same cost, the port priority is the tiebreaker. In this scenario, we want SW2 to use interface Gi 0/1 as its root port and interface Gi 0/0 as its alternate port. To achieve this, we must configure the port priority of Gi 0/1 on SW1 to 32, which is lower than the default priority of '128' on Gi 0/0. By doing so, interface Gi 0/1 on SW1 will advertise BPDUs with a higher priority than those advertised from interface Gi 0/0. SW2 will thus receive the higher priority BPDUs on link 2, choosing Gi 0/1 as its root port.