Difference between revisions of "AIX Servers in LVS/DR and LVS/TUN Clusters"
Bmontarges (Talk | contribs) (→Disable ARP for VIP) |
Bmontarges (Talk | contribs) (→Disable ARP for VIP) |
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To know : | To know : | ||
| − | It is possible to disable arp on a real interface via noarp option on setup | + | It is possible to disable arp on a real interface via noarp option on setup. |
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If a real interface is set up with arp on, you cannot add a inet alias on it whitout arp reply... | If a real interface is set up with arp on, you cannot add a inet alias on it whitout arp reply... | ||
| − | The AIX "Virtual IP Address Interface" implementation allow you to add a virtual interface (not | + | |
| + | The AIX "Virtual IP Address Interface" implementation allow you to add a virtual interface (not an alias) that is not arp-able | ||
Revision as of 17:19, 10 April 2010
Introduction
In the AIX operating systems, ip addresses configured on the loopback interface will not participate the ARP protocol. Tested ok on AIX 6.1, sould works from AIX 5L
Disable ARP for VIP
To know : It is possible to disable arp on a real interface via noarp option on setup.
If a real interface is set up with arp on, you cannot add a inet alias on it whitout arp reply...
The AIX "Virtual IP Address Interface" implementation allow you to add a virtual interface (not an alias) that is not arp-able
In LVS/DR clusters, we can disable ARP for VIP on AIX as follows:
smitty inet select "Add de Virtual IP Address Interface" under setup screen, specify : address : VIP/32 (dotted decimal) netmask : 255.255.255.255 interface name : vi1 (or what you want) activate interface : yes real intarface to attach: lo (select the loopback, smitty failed to attach on a etherchannel int. in my case)
From smitty, ODM should be updated for persistence after reboot.
I didn't restart the system yet. I will confirm asap.
I will also add the corresponding cmd line
That(s it. Sorry for wiki style and english. I work on it too... --Bmontarges 01:18, 11 April 2010 (CST)
