300-420 · Question #192
In the SD-WAN underlay network, which WAN Edge VPN ID is defined as the transport VPN and is used to carry control traffic?
The correct answer is A. VPN 0. In Cisco SD-WAN, VPN 0 is designated as the transport VPN, handling underlay routing and carrying all control plane traffic.
Question
In the SD-WAN underlay network, which WAN Edge VPN ID is defined as the transport VPN and is used to carry control traffic?
Options
- AVPN 0
- BVPN 512
- CVPN 128
- DVPN 256
How the community answered
(46 responses)- A93% (43)
- B2% (1)
- C4% (2)
Why each option
In Cisco SD-WAN, VPN 0 is designated as the transport VPN, handling underlay routing and carrying all control plane traffic.
VPN 0 is the default transport VPN in Cisco SD-WAN, specifically used for carrying control plane traffic and underlay routing information between WAN Edge devices. It isolates the control plane from other VPNs used for data traffic.
VPN 512 is commonly used for management or out-of-band traffic, not as the primary transport VPN for control traffic.
VPN 128 is not a standard pre-defined transport or control VPN in Cisco SD-WAN.
VPN 256 is not a standard pre-defined transport or control VPN in Cisco SD-WAN.
Concept tested: Cisco SD-WAN VPN 0 role
Source: https://www.cisco.com/c/en/us/td/docs/routers/sdwan/configuration/sdwan-xe-gs-book/sdwan-config-guide-vedge.html
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