350-401 · Question #1046
What is one role of the VTEP in a VXLAN environment?
The correct answer is D. to encapsulate the tunnel. In a VXLAN environment, the Virtual Tunnel End Point (VTEP) is responsible for encapsulating Ethernet frames into UDP packets for transport across the IP network.
Question
Options
- Ato maintain VLAN configuration consistency
- Bto forward packets to non-LISP sites
- Cto provide EID-to-RLOC mapping
- Dto encapsulate the tunnel
How the community answered
(15 responses)- A7% (1)
- D93% (14)
Why each option
In a VXLAN environment, the Virtual Tunnel End Point (VTEP) is responsible for encapsulating Ethernet frames into UDP packets for transport across the IP network.
Maintaining VLAN configuration consistency is a network design and management task, not a primary, inherent role of a VTEP.
VXLAN is for Layer 2 extension over Layer 3, not for forwarding to non-LISP (Location/ID Separation Protocol) sites; LISP handles locator/ID separation.
EID-to-RLOC mapping is a core function of LISP, which separates endpoint identifiers from routing locators, distinct from VXLAN's role.
The VTEP acts as the endpoint of a VXLAN tunnel, where it receives an original Ethernet frame from a virtual machine or host, adds a VXLAN header, and then encapsulates the entire frame within a UDP header and an outer IP header. This process allows Layer 2 segments to be extended over a Layer 3 network.
Concept tested: VXLAN VTEP function
Source: https://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/DataCenter/DCI/whitepaper/DCI_VXLAN_Tech.html
Topics
Community Discussion
No community discussion yet for this question.