4A0-105: Nokia Virtual Private LAN ServicesDemo

By Nokia · Question Mode

QuestionQ6

VPLS Features

Refer to the exhibit below.

Question Image

Assume that PE-B expects an avian tag as part of the RFC 4762 (Martini) encapsulation. How must PE-A be configured?

  • A The port that the SAP belongs to must have the correct ether type configured.
  • B The SAP must be configured with the right VLAN tag.
  • C The SDP VC type must be configured as type VLAN and the correct vlan-vc-tag must be specified.
  • D All of the above.
Explanation

A Martini pseudowire that must carry an 802.1Q tag uses the VLAN VC type on the SDP binding, with vlan-vc-tag configured to specify the explicit dot1Q value used for encapsulation toward the far end. The SAP VLAN tag and port EtherType govern access-side handling, not the pseudowire’s required VLAN encapsulation.

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