Date: Thu, 15 Mar 2007 18:01:22 +0100 From: Andrea Venturoli <ml.diespammer@netfence.it> To: freebsd-net@freebsd.org Subject: CARP Question Message-ID: <45F97BE2.4010605@netfence.it>
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Hello. I've got two servers configured as follows: a) /etc/rc.conf: ifconfig_xl0="inet 192.168.0.2 netmask 255.255.255.0" ifconfig_fxp0="inet 192.168.101.4 netmask 255.255.255.0" cloned_interfaces="carp0 carp1 carp2 carp3" ifconfig_carp0="vhid 1 advskew 100 pass xxxx 192.168.101.10" ifconfig_carp1="vhid 2 pass yyyy 192.168.101.10" ifconfig_carp2="vhid 3 advskew 100 pass zzzz 192.168.0.4" ifconfig_carp3="vhid 4 pass wwww 192.168.0.4" /etc/sysctl.conf: net.inet.carp.arpbalance=1 net.inet.carp.preempt=1 b) /etc/rc.conf: ifconfig_fxp0="inet 192.168.101.1 netmask 255.255.255.0" ifconfig_fxp1="inet 192.168.0.3 netmask 255.255.255.0" cloned_interfaces="carp0 carp1 carp2 carp3" ifconfig_carp0="vhid 1 pass xxxx 192.168.101.10" ifconfig_carp1="vhid 2 advskew 100 pass yyyy 192.168.101.10" ifconfig_carp2="vhid 3 pass zzzz 192.168.0.4" ifconfig_carp3="vhid 4 advskew 100 pass wwww 192.168.0.4" /etc/sysctl.conf: net.inet.carp.arpbalance=1 net.inet.carp.preempt=1 With this I would expect that, being both servers online, they should have two MASTER and two BACKUP carp interfaces each. Instead, one has all MASTERs and the other all BACKUPs. a) ifconfig carp0: flags=49<UP,LOOPBACK,RUNNING> mtu 1500 inet 192.168.101.10 netmask 0xffffff00 carp: BACKUP vhid 1 advbase 1 advskew 100 carp1: flags=49<UP,LOOPBACK,RUNNING> mtu 1500 inet 192.168.101.10 netmask 0xffffff00 carp: BACKUP vhid 2 advbase 1 advskew 0 carp2: flags=49<UP,LOOPBACK,RUNNING> mtu 1500 inet 192.168.0.4 netmask 0xffffff00 carp: BACKUP vhid 3 advbase 1 advskew 100 carp3: flags=49<UP,LOOPBACK,RUNNING> mtu 1500 inet 192.168.0.4 netmask 0xffffff00 carp: BACKUP vhid 4 advbase 1 advskew 0 b) ifconfig carp0: flags=49<UP,LOOPBACK,RUNNING> mtu 1500 inet 192.168.101.10 netmask 0xffffff00 carp: MASTER vhid 1 advbase 1 advskew 0 carp1: flags=49<UP,LOOPBACK,RUNNING> mtu 1500 inet 192.168.101.10 netmask 0xffffff00 carp: MASTER vhid 2 advbase 1 advskew 100 carp2: flags=49<UP,LOOPBACK,RUNNING> mtu 1500 inet 192.168.0.4 netmask 0xffffff00 carp: MASTER vhid 3 advbase 1 advskew 0 carp3: flags=49<UP,LOOPBACK,RUNNING> mtu 1500 inet 192.168.0.4 netmask 0xffffff00 carp: MASTER vhid 4 advbase 1 advskew 100 Why? bye & Thanks av.
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