350-401 · Question #746
What is one characteristic of VXLAN?
The correct answer is B. It supports multitenant segments.. VXLAN (Virtual Extensible LAN) is an overlay network technology that enables the creation of highly scalable multitenant segments, using a 24-bit identifier to support millions of logical networks.
Question
What is one characteristic of VXLAN?
Options
- AIt supports a maximum of 4096 VLANs.
- BIt supports multitenant segments.
- CIt uses STP to prevent loops in the underlay network.
- DIt uses the Layer 2 header to transfer packets through the network underlay.
How the community answered
(37 responses)- B95% (35)
- C3% (1)
- D3% (1)
Why each option
VXLAN (Virtual Extensible LAN) is an overlay network technology that enables the creation of highly scalable multitenant segments, using a 24-bit identifier to support millions of logical networks.
VXLAN is designed to overcome the 4096 VLAN limit, offering over 16 million segments through its 24-bit VNI, so it supports far more than 4096 VLANs.
VXLAN uses a 24-bit VXLAN Network Identifier (VNI), allowing for over 16 million unique logical network segments, which significantly enhances the capability to support large-scale multitenant environments compared to traditional VLANs.
VXLAN operates over an IP underlay network which typically uses Layer 3 routing protocols (like OSPF or EIGRP) for loop prevention and path selection, not STP.
VXLAN encapsulates Layer 2 Ethernet frames within a UDP header and an outer IP header, using the Layer 3 (IP) and Layer 4 (UDP) headers to transfer packets through the network underlay.
Concept tested: VXLAN characteristics and benefits
Source: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/7-x/vxlan/configuration/guide/b_Cisco_Nexus_9000_Series_NX-OS_VXLAN_Configuration_Guide_7x/b_Cisco_Nexus_9000_Series_NX-OS_VXLAN_Configuration_Guide_7x_chapter_01.html
Topics
Community Discussion
No community discussion yet for this question.