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nx.os.and.cisco.nexus.switching.2nd.edition.1587143046

Nexus Switching 2nd Edition

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EID prefixes with both map-servers. The map-resolvers are configured with the<br />

Anycast IP address; the MR requests will be serviced by the cl<strong>os</strong>est MR defined by<br />

the Layer 3 routing domain.<br />

5. Configure Proxy-ETR, as shown in Example 13-5.<br />

Example 13-5. Configure the LISP Proxy ETR Functionality<br />

Click here to view code image<br />

xTR#<br />

xTR# conf t<br />

Enter configuration comm<strong>and</strong>s, one per line. End with<br />

CNTL/Z.<br />

xTR(config)# ip lisp use-petr 8.8.8.8<br />

xTR(config)# exit<br />

xTR# copy running-configuration startup-configuration<br />

6. Define the dynamic mapping for the servers’ mobile subnets, as shown in Example<br />

13-6.<br />

Example 13-6. Define the Dynamic Mapping for the Server Subnets That Move<br />

Between the Layer 2 Extended Between the Data Centers<br />

Click here to view code image<br />

xTR#<br />

xTR# conf t<br />

Enter configuration comm<strong>and</strong>s, one per line. End with<br />

CNTL/Z.<br />

xTR(config)# lisp dynamic-eid EXTVLAN40<br />

xTR(config-lisp)# database-mapping 172.20.40.0/24 10.1.1.1<br />

priority 1 weight 50<br />

xTR(config-lisp)# database-mapping 172.20.40.0/24 10.1.1.2<br />

priority 1 weight 50<br />

xTR(config-lisp)# map-notify-group 239.192.1.1<br />

xTR(config)# exit<br />

xTR# copy running-configuration startup-configuration<br />

The map-notify-group multicast address must be defined <strong>and</strong> associated to the<br />

dynamic-eid mapping; the map-notify-group has to be the same acr<strong>os</strong>s all the xTRs.<br />

The map-notify-group is used for the LISP control plane communication between all<br />

the xTRs for the “EXTVLAN40” Extended Subnet. Because the Nexus 7000 is<br />

deployed at the Layer 2/Layer 3 boundary, the configuration will be applied to the

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