Refer to the exhibit. An engineer must deploy a Layer 3 EVPN over segment routing MPLS in the data center core; however, Cisco switch Spine_A fails to join the OSPF network. Which OSPF command must…

The correct answer is D. segment-routing mpls. To run EVPN over Segment Routing MPLS (SR-MPLS), the IGP (here OSPF) must be enabled for segment routing so it can: Advertise Segment IDs (SIDs) for prefixes and links Carry SR extensions in OSPF LSAs On Cisco devices, this is done under the OSPF process with: router-id…

Data Center Interconnect (DCI)

Question

Refer to the exhibit. An engineer must deploy a Layer 3 EVPN over segment routing MPLS in the data center core; however, Cisco switch Spine_A fails to join the OSPF network. Which OSPF command must be run on Spine_A to resolve the issue?

Exhibit

Options

Aotv join-interface loopback0
Baddress-family ipv4
Cconnected-prefix-sid-map
Dsegment-routing mpls

How the community answered

(55 responses)

A
4% (2)
B
9% (5)
C
4% (2)
D
84% (46)

Explanation

To run EVPN over Segment Routing MPLS (SR-MPLS), the IGP (here OSPF) must be enabled for segment routing so it can: Advertise Segment IDs (SIDs) for prefixes and links Carry SR extensions in OSPF LSAs On Cisco devices, this is done under the OSPF process with: router-id 192.168.1.1 segment-routing mpls Without the segment-routing mpls command, Spine_A will not participate correctly in the SR- enabled OSPF domain, and SR-related adjacencies/LSAs will not form as expected, resulting in failure to integrate into the intended SR-MPLS core.

Topics

#EVPN#segment routing MPLS#OSPF#data center core

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