Configuring Simple Lisp Parallel Model Virtualization - Cisco Nexus 7000 Series Configuration Manual

LISP Instance-ID Support

Configuring Simple LISP Parallel Model Virtualization

You can perform these tasks to enable and configure LISP ITR/ETR (xTR) functionality and LISP map
resolver and map server for LISP parallel model virtualization.
The configuration in the following figure below is for two LISP sites that are connected in parallel mode.
Each LISP site uses a single edge switch configured as both an ITR and ETR (xTR), with a single connection
to its upstream provider. Note that the upstream connection is VLAN-segmented to maintain RLOC space
separation within the core. Two VRFs are defined here: BLUE and GREEN. The IPv4 RLOC space is used
in each of these parallel networks. Both IPv4 and IPv6 EID address space is used. The LISP site registers to
one map server/map resolver (MS/MR), which is segmented to maintain the parallel model architecture of
the core network.
Figure 17: Simple LISP Site with One IPv4 RLOC and One IPv4 EID
The components illustrated in the topology shown in the figure above are described below.
LISP site
• The customer premises equipment (CPE) functions as a LISP ITR and ETR (xTR).
• Both LISP xTRs have two VRFs: GOLD and PURPLE, with each VRF containing both IPv4 and IPv6
Command or Action
The following commands display IPv4
mapping cache information for vrf1, and clear
the mapping cache for vrf1. Clearing also
displays the show information after it clears
the cache.
Switch(config)# show ip lisp map-cache
vrf vrf1
Switch(config)# clear ip lisp map-cache
vrf vrf1
EID-prefixes, as shown in the figure above. Note the overlapping prefixes, used for illustration purposes.
A LISP instance ID is used to maintain separation between two VRFs. The share key is configured
"per-VPN."
Configuring Simple LISP Parallel Model Virtualization
Purpose
stored by the switch. These verify the
operational status of the LISP control plane.
The command applies to a LISP switch that
maintains a map cache (for example, if
configured as an ITR or PITR).
Cisco Nexus 7000 Series NX-OS LISP Configuration Guide
63