Ipv6 Lisp Etr Glean-Mapping - Cisco Nexus 7000 Series Command Reference Manual

ipv6 lisp etr glean-mapping

S e n d d o c u m e n t c o m m e n t s t o n e x u s 7 k - d o c f e e d b a c k @ c i s c o . c o m .
ipv6 lisp etr glean-mapping
To configure an egress tunnel router (ETR) to add inner header (EID) source address to outer header
(RLOC) source address mappings it to its endpoint identifier to Routing Locator (EID-to-RLOC) cache
(map-cache, use the ipv6 lisp etr glean-mapping command. To remove this functionality, use the no
form of this command.
Syntax Description verify
None
Defaults
Global configuration mode
Command Modes
network-admin
Supported User Roles
vdc-admin
Command History Release
5.0(1.13)
When an ETR receives Locator/ID Separation Protocol (LISP)-encapsulated packets, the inner header
Usage Guidelines
EID source address and outer header RLOC source address should match an entry found in the map
cache as determined by the results of a Map-Request/Map-Reply exchange. When a host moves from
one ingress tunnel router (ITR) to another ITR, the EID-to-RLOC mapping to change because the new
ITR can encapsulate packets to the ETR using a different locator. By entering the ipv6 lisp etr
glean-mapping command, the ETR recognizes the new locator information for the moved host's EID
and updates the map cache with this information.
The learned EID-to-RLOC map-cache entries are stored with a priority of 1 and a weight of 100.
When you enter the optional verify keyword, the ETR caches the learned EID-to-RLOC mapping data
but does not forward packets until the ETR can send its own Map-Request to the originating ITR and
receive a Map-Reply. The gleaned locator will then be used. When you specify the verify keyword, the
locator is used to forward traffic and all packets are dropped until the Map-Reply is returned.
Cisco Nexus 7000 Series NX-OS LISP Command Reference
LSP-86
ipv6 lisp etr glean-mapping [verify]
no ipv6 lisp etr glean-mapping [verify]
Optional) Specifies that gleaned EID-to-RLOC mapping data should be cached
but not used for forwarding packets until the ETR can send its own Map-Request
to the originating ITR and receive a Map-Reply with the same data in response.
Modification
This command was introduced.
Cisco Nexus 7000 Series LISP Commands