JN0-281: Data Center, Associate (JNCIA-DC)Demo

By Juniper · Question Mode

QuestionQ22

Layer 2 Switching and VLANs

You are experiencing an issue bringing up an aggregated Ethernet interface between a spine and a leaf. Referring to the exhibit, what is the issue?

Question Image

  • A The active statement must be added to LACP under the aggregated-ether-options hierarchy on one or both sides.
  • B The ae interface numbers are not consistent.
  • C The leaf-and-spine VLAN memberships are not consistent and should be changed to include the additional VLANs defined on spine1.
  • D The leaf-and-spine MTUs are not consistent.
Explanation

Junos LACP is passive by default when no active or passive mode is explicitly configured. A passive LACP peer only responds to received LACP PDUs; therefore, with both ends passive, neither end initiates negotiation and the aggregated Ethernet bundle does not come up. Configure active under aggregated-ether-options lacp on at least one side.

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