Configure the number of entries in the Neighbor Discovery cache table. This command can be used to configure the global limit as well as the limit on individual layer 3 interfaces.
The minimum neighbor discovery cache limit that can be configured per interface is one (1). The maximum neighbor discovery limit per interface is the same as the system's maximum neighbor discovery cache limit. This maximum limit varies between the various systems. The maximum value that can be configured is 97280 entries.
The command when executed in the Global Configuration mode configures the maximum number of entries for all IPv6 neighbor discovery tables.
The command when executed within an interface's configuration mode, configures the limit on that interface's IPv6 neighbor discovery table.
The no format of the global form of this command removes the configured neighbor discovery cache limit from all the interfaces. However, it does not remove neighbor discovery limitations configured on individual interfaces which were configured using the ipv6 nd cache interface-limit command.
The following example sets the IPv6 neighbor discovery table limit to 100 globally.
SLX(config)# ipv6 nd cache interface-limit 100
The following example sets the IPv6 neighbor discovery table limit to 250 entries for the ethernet interface 3/5.
SLX (config)# interface ethernet 3/5
SLX (config-if-eth-3/5)# ipv6 nd cache interface-limit 250
This example displays the neighbor discovery cache limit configuration on a VE interface.
SLX # show ipv6 neighbor ve 4227
Configured ND Cache limit : 100
Total Entries in Interface : 4
Address Mac-address L3 Interface L2 Interface Age Type
----------------------------------------------------------------------------------------------------------------
200:30:70:7::2 887e.25d3.e20b Ve 4277 Tu 32769 (10.20.20.10) Never Mct-Sticky
200:30:70:7::33 0034.000c.5501 Ve 4277 Tu 32772 (172.31.254.63) 00:06:27 Dynamic
fe80::30:7:70:33 0034.000c.5501 Ve 4277 Tu 32772 (172.31.254.63) 00:06:22 Dynamic
fe80::8a7e:25ff:fed3:e20b 887e.25d3.e20b Ve 4277 Tu 32769 (10.20.20.10) Never Mct-Sticky
SLX #