topic Re: Failover IP addresses in Operating System - OpenVMS

Failover IP addresses

matthew robey — Sun, 26 Jun 2005 17:24:10 GMT

OVms V7.3-2 Tcpip V5.4 Eco 4
Two node ES47 Cluster.

I have configured IP failover for two nics on each node of the cluster.
All works well, however when rebooting the cluster, one node displays the following error message:

%TCPIP-E-INVINTER, error defining interface: WEA1
-TCPIP-I-DRIVERQIO, interface operation from internet driver QIO failed
-SYSTEM-F-DUPLNAM, duplicate name
%TCPIP-E-INVINTER, error defining interface: IEB1
-TCPIP-I-DRIVERQIO, interface operation from internet driver QIO failed

The other cluster node displays no such error.

On checking the config all appears to be ok.

$ifconfig -a

IE1: flags=c43
failSAFE IP Addresses:
inet xxx.xxx.xxx.157 netmask ffffff00 broadcast xxx.xxx.xxx.255 (on FIRE7 WE0)
*inet xxx.xxx.xxx.167 netmask ffffff00 broadcast xxx.xxx.xxx.255 ipmtu 1500

LO0: flags=100c89
inet 127.0.0.1 netmask ff000000 ipmtu 4096

TN0: flags=80

TN1: flags=80

WE0: flags=c43
failSAFE IP Addresses:
inet xxx.xxx.xxx.167 netmask ffffff00 broadcast xxx.xxx.xxx.255 (on FIRE7 IE1)
*inet xxx.xxx.xxx.157 netmask ffffff00 broadcast xxx.xxx.xxx.255 ipmtu 1500

Network appears to be ok, any ideas ?

Thanks,

Matt

Re: Failover IP addresses

John Gillings — Sun, 26 Jun 2005 17:41:02 GMT

Matt is the tertiary message for IEB1 also DUPLNAM? Or is it really missing as posted?

What does SHOW DEV/FULL WEA and IEB show? How many other protocols are running on the devices?

Re: Failover IP addresses

John Gillings — Sun, 26 Jun 2005 17:41:53 GMT

If that doesn't help, please log a case with your local customer support centre.

Re: Failover IP addresses

matthew robey — Sun, 26 Jun 2005 21:46:24 GMT

Hi John,

yes, sorry the "duplicate name" for IEB1 is also displayed. (my cut and paste is not what it should be!)

These nics are only running ip and decnet over ip.

Matt

Re: Failover IP addresses

Volker Halle — Mon, 27 Jun 2005 00:28:31 GMT

Matt,

is it possible, that you have (still) defined pseudo interfaces with TCPIP - in addition to failSAFE IP - on that one node ?

Check with TCPIP SHOW CONF INTERFACES

Maybe those definitions conflict with the failSAFE ip config ?

By just defining failSAFE IP, you don't get pseudo interfaces definitions (i.e. weA1).

Volker.

Re: Failover IP addresses

Robert_Boyd — Mon, 27 Jun 2005 09:41:51 GMT

In addition to checking the TCPIP interface config info, verify that VMS and LAN databases are in agreement:

$ show dev ie0
$ show dev ew0
$ mcr lancp
lancp> list dev/char
lancp> show dev/char

Also at the console level, verify the device configuration with commands like
>>> show dev i
>>> show dev ew
>>> show *mode

Make sure that there is consistency between the various addresses/settings for the interfaces.

Robert

Re: Failover IP addresses

matthew robey — Mon, 27 Jun 2005 16:32:25 GMT

Volker,

that was it ! Thanks for your assistance.

Robert, I'll check the console level stuff next time the system is rebooted. (Production server, could be 6-12 months !)

Matt