David Brean wrote: >Hello, > >I'm testing a fault scenario where the recovery operation of a device >attached to the network changes the link layer address corresponding to >its IP address. The device is not sending gratuitous ARPs when this >operation occurs. > >By default, the Solaris operating system refreshes its arp cache every >1200000ms (20 minutes). Due to this large arp cache refresh interval, >the Solaris gets the new link layer address of the device after 20 >minutes. That means the Solaris will look for the old link layer >address of the failover IP until its arp cache gets updated. > >I plan to lower the ip_ire_arp_interval to 1 minute. Is that sufficient >or does the arp_cleanup_interval also need to be lowered? > > ip_ire_arp_interval is used only for Solicated ARP entries and defaults to 20 mins. While arp_cleanup_interval is used for unsolicated arp entries (i.e. not specifically asked for by a host) and defaults to 5 mins.
siddharth >Also, can either of these parameters be set in /etc/system or does a >startup script need to be added that uses ndd(1m)? > >-David > >_______________________________________________ >networking-discuss mailing list >[email protected] > > _______________________________________________ networking-discuss mailing list [email protected]
