Configuring Lisp Delegate Database Tree (Ddt); Lisp Delegate Database Tree (Ddt); Overview Of Ddt; Restrictions For Lisp Delegate Database Tree (Ddt) - Cisco Nexus 7000 Series Configuration Manual

Configuring LISP Delegate Database Tree (DDT)

This chapter contains the following sections:
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LISP Delegate Database Tree (DDT)

Overview of DDT

LISP Delegated Database Tree (DDT) defines a large-scale distributed database of LISP Endpoint Identifier
(EID) space using a DDT node. A DDT node is configured to be authoritative for some specified portion of
an overall LISP EID space, as well as the set of more specific subprefixes that are delegated to other DDT
nodes. It is also configured with the set of more-specific sub-prefixes that are further delegated to other DDT
nodes. To delegate a sub-prefix, the "parent" DDT node is configured with the Routing Locators (RLOCs)
of each child DDT node that is authoritative for the sub-prefix. Each RLOC either points to a map server
(sometimes termed a "terminal DDT node") to which an egress tunnel routers (ETRs) registers that sub-prefix
or points to another.

Restrictions for LISP Delegate Database Tree (DDT)

The following restriction applies to the LISP Delegate Database Tree (DDT) feature:
• If LISP is enabled, nondisruptive upgrade (ISSU) and nondisruptive downgrade (ISSD) paths are not
LISP Delegate Database Tree (DDT), on page 83
Overview of DDT, on page 83
Restrictions for LISP Delegate Database Tree (DDT), on page 83
Configuring LISP Delegate Database Tree (DDT), on page 84
Configuration Examples for LISP Delegate Database Tree (DDT), on page 85
supported. Disable LISP prior to any upgrade. This restriction only applies to releases before 6.2(2) but
not to this release or to future LISP releases.
C H A P T E R
Cisco Nexus 7000 Series NX-OS LISP Configuration Guide
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