Cisco Nexus 7000 Series Command Reference Manual page 118

ipv6 lisp map-cache-limit
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 .
When the optional reserve-list keyword is configured, a Map-Request is generated and a new dynamic
map-cache entry may be added only for IP v6 EID-prefixes that are permitted by the prefix-list
referenced by the reserve-list keyword. In this case, the new entry must be able to replace an existing
dynamic entry so that the cache limit is maintained. The deleted dynamic entry will be either a
nonreserve idle map-cache entry or non-reserve active map-cache entry. Idle map-cache entries are those
entries that have seen no activity in the last 10 minutes. If all current dynamic entries are also permitted
by the prefix-list referenced by the reserve-list, no further dynamic entries can be added.
Existing dynamic IPv6 map-cache entries can time-out due to inactivity or can be removed by the using
the clear ip lisp map-cache command to create a free position in the map cache.
Static map-cache entries are always added, until the default or configured cache-limit is reached. After
the default or configured cache limit is reached, unless the optional reserve-list is configured, no further
static entries are added.
When the optional reserve-list keyword is not configured, static entries are added on a
first-in-first-added basis until the configured map-cache limit is reached. After that time, no new static
entries can be added. If the reserve-list keyword is configured but the prefix-list to which it refers is not
configured, the results are the same as if the reserve-list keyword was not configured.
When the optional reserve-list keyword is configured, a static entry that matches the reserve list, a prefix
list can be added, but only if it can replace an existing static entry or dynamic entry that does not-match
the reserve list prefix list.
When the reserve-list command is used, be sure that the prefix-list includes entries that match all
Note
expected prefixes in any Map-Reply, including the more-specifics. This can be ensured by appending le
128 to the end of all prefix-list entries for IPv6 prefixes. For example, if you want to match
2001:DDB8:BB::/48 and any of the more specifics, you should enter ipv6 prefix-list lisp-list seq 5
permit 2001:DDB8:BB::/48 le 128 in order to cover all replies within this range.
This command does not require a license.
This example shows how to configure the LISP cache-limit and a reserve-list:
Examples
switch# configuration terminal
switch(config)# ipv6 lisp map-cache-limit 2000 reserve-list LISP-v6-always
switch(config)# ip prefix-list LISP-always seq 10 permit 2001:DB8:BA::/46 le 128
Related Commands Command
ipv6 lisp map-cache
clear ipv6 lisp
map-cache
debug ipv6 lisp
mapping control
Cisco Nexus 7000 Series NX-OS LISP Command Reference
LSP-108
Description
Configures a static IPv6 EID-prefix to locator map-cache entry.
Clears the LISP IPv6 map-cache on the local switch.
Displays logs for Map-Request, Map-Reply, and other LISP IPv6 mapping
activities
Cisco Nexus 7000 Series LISP Commands