switching virtual interface.

[skt_skt]

HP-UX 11.11
Oracle CRS cluster

I have a CRS package which is setup with following config.

IP[0]="132.226.192.230"
LAN[0]="lan900:77"
NETMASK[0]="255.255.255.0"
BRDCAST[0]="132.226.192.255"
SUBNET[0]=""

Below is the netstat o/p
132.226.192.230 132.226.192.230 UH 0 lan900:77 4136
132.226.192.255 132.226.192.230 UH 5 lan900:77 1500

My concern is this particular vip is gettting switched to 901:xx automatically which belongs to a different VLAN and i have connection issues to the server as the 901:xx comes with mask ffff0000(while 900:77 used ffffff00)

The physical LAN belongs to the failing 900:77 has other IPs associated and hence i would assume there is no physical problem to the card/cable.

132.226.192.65 132.226.192.65 UH 0 lan900 4136
132.226.192.189 132.226.192.189 UH 0 lan900:78 4136
132.226.192.154 132.226.192.154 UH 0 lan900:1 4136
132.226.192.255 132.226.192.189 UH 4 lan900:78 1500
132.226.192.0 132.226.192.65 U 4 lan900 1500
132.226.192.0 132.226.192.154 U 4 lan900:1 1500
default 132.226.192.254 UG 0 lan900 1500

This belongs particular VIP belongs to CRS package which always stood up even during the vip transition. Even if i bring up the old VIP it is again get back to the same problem.

What could trigger this vip change??? Any thoughts..

[Steven E. Protter]

Shalom,

I would suspect one of two possible causes.

1) Problems with one of the LAN interfaces.
2) Network infrastructure issues including cables, network port configuration, router issues.

Check them both out. Don't assume. Network admins often make changes they feel will have no impact that cause issues like this all the time.

SEP

[skt_skt]

this is identified as a CRS package configured by DBA team has a conflicting IP address. We have disabled that pacakge now.