An engineer must configure a VXLAN routing on a Cisco Nexus 9000 Series Switch. The engineer requires a solution where all the leaf switches have the same gateway MAC and IP addresses. Which configuration set accomplishes this task?
A.
NX9K(config)# fabric forwarding anycast-gateway-mac AA:BB:AA:BB:AA:BB NX9K(config)# interface VLAN-interface-name NX9K(config-if)# vrf member vrf-name NX9K(config-if)# fabric forwarding mode anycast-gateway
Answer A is correct. I am not clear what would be the impact if you would configure anycast gateway without vrf. Bu in VxLAN config you would assign VRF for every subnet interface.
"feature-set fabric" is to enable the feature fabric-path - which is not supported by N9k's. So it can be either A or D. The VRF needs to be configured under the SVI. So I will go with option A.
https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/7-x/vxlan/configuration/guide/b_Cisco_Nexus_9000_Series_NX-OS_VXLAN_Configuration_Guide_7x/b_Cisco_Nexus_9000_Series_NX-OS_VXLAN_Configuration_Guide_7x_chapter_0100.html
- Enable VxLAN with distributed anycast-gateway using BGP EVPN
fabric forwarding anycast-gateway-mac 0000.2222.3333
- Create server facing SVI and enable distributed anycast-gateway
interface Vlan1001
no shutdown
vrf member vxlan-900001
ip address 4.1.1.1/24
ipv6 address 4:1:0:1::1/64
fabric forwarding mode anycast-gateway
B and C are wrong because "install feature-set fabric" is for FabricPath and not for VXLAN. For VXLAN these features needs to be enabled "feature vn-segment-vlan-based" and "feature nv overlay". Since B & C are wrong, the answer should be A.
Answer is C, You need to install VXLAN feature before using it, but the commands listed are for Nexus 5000:
https://www.cisco.com/c/en/us/td/docs/switches/datacenter/pf/configuration/guide/b-pf-configuration/b-pf-configuration_chapter_01111.html#concept_B54E8C5F82C14C7A9733639B1A560A01
The correct answer is D.
We need to configure fabric forwarding anycast-gateway-mac <address> and fabric forwarding mode anycast-gateway also need to associate SVI with Anycast Gateway under VLAN configuration mode for Anycast Gateway for VXLAN Routing.
https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/7-x/vxlan/configuration/guide/b_Cisco_Nexus_9000_Series_NX-OS_VXLAN_Configuration_Guide_7x/b_Cisco_Nexus_9000_Series_NX-OS_VXLAN_Configuration_Guide_7x_chapter_0100.html
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