Which two statements regarding Ethernet segments (ES) are correct? (Choose two)

The correct answer is A. The Type-1 EVPN route will indicate if the ES is all-active or single-active. B. The Type-4 EVPN route will be used to elect the designated forwarder for the ES. A designated forwarder (DF) is required when customer edge devices (CEs) are multihomed to more than one provider edge (PE) device. Without a designated forwarder, multihomed hosts would receive duplicate packets. Designated forwarders are chosen for an Ethernet segment…

MPLS Layer 2 VPNs

Question

Options

AThe Type-1 EVPN route will indicate if the ES is all-active or single-active.
BThe Type-4 EVPN route will be used to elect the designated forwarder for the ES.
CThe Type-2 EVPN route will indicate if there is a designated forwarder on the ES.
DThe Type-3 EVPN route will be used for the aliasing function to load-balance to the ES

How the community answered

(37 responses)

A
78% (29)
C
16% (6)
D
5% (2)

Explanation

A designated forwarder (DF) is required when customer edge devices (CEs) are multihomed to more than one provider edge (PE) device. Without a designated forwarder, multihomed hosts would receive duplicate packets. Designated forwarders are chosen for an Ethernet segment identifier (ESI) based on type 4 route advertisements. vxlan/topics/ref/statement/designated-forwarder-election-hold-time-evpn.html

Topics

#EVPN#Ethernet segment#designated forwarder#EVPN route types

Community Discussion

No community discussion yet for this question.

Full JN0-663 Practice