JN0-480 · Question #49
What does EVPN use lo identity which remote leaf device advertised the EVPN route?
The correct answer is A. a route distinguisher value. EVPN uses a route distinguisher (RD) value to identify which remote leaf device advertised the EVPN route. An RD is a 64-bit value that is prepended to the EVPN NLRI to create a unique VPNv4 or VPNv6 prefix. The RD value is usually derived from the IP address of the PE that…
Question
What does EVPN use lo identity which remote leaf device advertised the EVPN route?
Options
- Aa route distinguisher value
- Ba community tag
- Ca route target value
- Da VRF target value
How the community answered
(22 responses)- A77% (17)
- B14% (3)
- C5% (1)
- D5% (1)
Explanation
EVPN uses a route distinguisher (RD) value to identify which remote leaf device advertised the EVPN route. An RD is a 64-bit value that is prepended to the EVPN NLRI to create a unique VPNv4 or VPNv6 prefix. The RD value is usually derived from the IP address of the PE that originates the EVPN route. By comparing the RD values of different EVPN routes, a PE can determine which remote PE advertised the route and which VRF the route belongs to.
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