Keepalivedが無償のARPを定期的に送信する方法はありますか?
次のような状況がありました。
したがって、定期的なGARPでこの状況を回避できると考えています。これは良いアプローチですか?keepalived内でそれを行う方法はありますか?
この種の問題を回避するための他の提案はありますか?
Keepalived構成:
global_defs {
notification_email {
[email protected]
}
notification_email_from SERVER_1
smtp_server smtp.server.local
smtp_connect_timeout 30
router_id SERVER_1
}
vrrp_instance V1 {
state BACKUP
nopreempt
interface eth0
lvs_sync_daemon_interface eth0
virtual_router_id 150
priority 120
advert_int 1
persistence_timeout 0
smtp_alert
authentication {
auth_type PASS
auth_pass xxx
}
virtual_ipaddress {
10.xxx.xxx.xxx
}
}
keepalivedバージョン1.2.20以降では、無償のARPに関する以下の構成設定がサポートされています。vrrp_garp_master_refreshが必要です。
# delay for second set of gratuitous ARPs after transition to MASTER
vrrp_garp_master_delay 10 # seconds, default 5, 0 for no second set
# number of gratuitous ARP messages to send at a time after transition to MASTER
vrrp_garp_master_repeat 1 # default 5
# delay for second set of gratuitous ARPs after lower priority advert received when MASTER
vrrp_garp_lower_prio_delay 10
# number of gratuitous ARP messages to send at a time after lower priority advert received when MASTER
vrrp_garp_lower_prio_repeat 1
# minimum time interval for refreshing gratuitous ARPs while MASTER
vrrp_garp_master_refresh 60 # secs, default 0 (no refreshing)
# number of gratuitous ARP messages to send at a time while MASTER
vrrp_garp_master_refresh_repeat 2 # default 1
# Delay in ms between gratuitous ARP messages sent on an interface
vrrp_garp_interval 0.001 # decimal, seconds (resolution usecs). Default 0.
# Delay in ms between unsolicited NA messages sent on an interface
vrrp_gna_interval 0.000001 # decimal, seconds (resolution usecs). Default 0.