Referring to the exhibit, why is the active source field blank for the entry that uses the 00:0c:29:e8:b7:39 MAC address?

The correct answer is C. The host for this entry is locally connected to leaf1. In an Ethernet switching table, if a MAC address is learned on a local interface (e.g., xe-0/0/4.0), the active source will be blank since the source is local and not learned via EVPN from another VTEP or remote site. Remote entries (learned via VXLAN/EVPN) typically display…

Data center routing and switching technologies

Question

Exhibit

Options

AThe EVPN route for this host does not have a valid next hop.
BThe ARP lookup for this host has failed.
CThe host for this entry is locally connected to leaf1.
DThis entry is associated with a multicast EVPN route.

How the community answered

(30 responses)

A
10% (3)
B
3% (1)
C
83% (25)
D
3% (1)

Explanation

In an Ethernet switching table, if a MAC address is learned on a local interface (e.g., xe-0/0/4.0), the active source will be blank since the source is local and not learned via EVPN from another VTEP or remote site. Remote entries (learned via VXLAN/EVPN) typically display the VTEP information as the active source; local entries do not populate this field.

Topics

#EVPN MAC table#local host#active source field#VTEP

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