Cisco NCS 540 Series Manuale di configurazione - Pagina 4
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arp purge-delay
no arp learning local
arp learning disable
no arp learning disable
Syntax Description
local
disable
This command has no keywords or arguments.
Command Default
Sub-interface configuration mode
Command Modes
RP/0/RP0/CPU0:router(config)#interface GigabitEthernet 0/0/0/1
RP/0/RP0/CPU0:router(config-if)# ipv4 address 12.1.3.4 255.255.255.0
RP/0/RP0/CPU0:router(config-if)# arp learning local
RP/0/RP0/CPU0:router(config-if)# no shut
RP/0/RP0/CPU0:router(config-if)# commit
RP/0/RP0/CPU0:router(config)# interface GigabitEthernet 0/0/0/1
RP/0/RP0/CPU0:router(config-if)# ipv4 address 12.1.3.4 255.255.255.0
RP/0/RP0/CPU0:router(config-if)# arp learning disable
RP/0/RP0/CPU0:router(config-if)# commit
arp purge-delay
To delay purging Address Resolution Protocol (ARP) entries when an interface goes down, use the arp
purge-delay command in interface configuration mode. To turn off the purge delay feature, use the no form
of this command.
arp purge-delay value
no arp purge-delay value
Syntax Description
value
Default value is off.
Command Default
Interface configuration
Command Modes
Command History
Release
Release 6.0
Use the arp purge-delay command to delay purging ARP entries when an interface goes down. If the interface
Usage Guidelines
comes up within the delay time, then the ARP entries are restored to prevent packet loss with Equal Cost
Multipath (ECMP) configured.
ARP Commands
4
Enables the dynamic learning of ARP entries for local subnets.
When arp learning local is configured on an interface or sub-interface, it learns only the ARP
entries from ARP packets on the same subnet.
Disables the dynamic learning of all ARP entries.
Sets the purge delay time in seconds. Range is 1 to 65535.
Modification
This command was introduced.
ARP Commands