Configuring APA

Olga_1 — Fri, 20 Apr 2007 12:38:46 GMT

Hello,

I have HP-UX B.11.23 U ia64 server.
I am trying to configure APA

Here is the scenario:
lan0 and lan2 are connected to the same switch#2 and are grouped into lan900 for load balancing
lan1 is connected to switch #1
LAN Monitor is used for failover

Please let me know if the configuration is correct.

As well as please tell me how switch#1 and swithch #2 should be configured.

/etc/rc.config.d/hp_apaconf

HP_APA_INTERFACE_NAME[0]=lan900
HP_APA_LOAD_BALANCE_MODE[0]=LB_MAC
HP_APA_GROUP_CAPABILITY[0]=900

/etc/rc.config.d/netconf

INTERFACE_NAME[0]=lan900
IP_ADDRESS[0]=XX.XXX.XX.XX
SUBNET_MASK[0]=255.255.XXX.0
BROADCAST_ADDRESS[0]=1X.XXX.XX.XXX
INTERFACE_STATE[0]=up
DHCP_ENABLE[0]=0
INTERFACE_MODULES[0]=""

/etc/rc.config.d/hp_apaportconf

HP_APAPORT_INTERFACE_NAME[0]=lan0
HP_APAPORT_GROUP_CAPABILITY[0]=900
HP_APAPORT_CONFIG_MODE[0]=FEC_AUTO

HP_APAPORT_INTERFACE_NAME[1]=lan2
HP_APAPORT_GROUP_CAPABILITY[1]=900
HP_APAPORT_CONFIG_MODE[1]=FEC_AUTO

HP_APAPORT_INTERFACE_NAME[3]=lan900
HP_APAPORT_CONFIG_MODE[3]= LAN_MONITOR
HP_APAPORT_GROUP_CAPABILITY[3]=901
HP_ APAPORT_ PRIORITY [3]=5

HP_APAPORT_INTERFACE_NAME[4]=lan1
HP_APAPORT_CONFIG_MODE[4]= LAN_MONITOR
HP_APAPORT_GROUP_CAPABILITY[4]=901
HP_ APAPORT_ PRIORITY [4]=3

/etc/lanmon/lanconfig.ascii

Edit the file:

FAILOVER_GROUP lan901

STATIONARY_IP XX.XXX.XX.XX
# Primary/Standby Interface Priority : Cost
# –––––––––––––––––––––––+–––––––––––––+––––––––––––––––
PRIMARY lan900 5 : 1
STANDBY lan1 3 : 1

Thank you.

Re: Configuring APA

Ketan Kotak — Fri, 20 Apr 2007 13:15:08 GMT

For LAN Monitor Fail-Over Group (FOG) to work correctly and detect switch or card failure, both switches #1 and #2 should have a connection between them.

The requirement is that, if you can pass a linkloop between Primary and Standby Port(s) in side of FOG, that is valid configuration.

Hope this helps.
+ Ketan Kotak

Re: Configuring APA

Thomas J. Harrold — Sun, 22 Apr 2007 08:42:26 GMT

Depending on your network topology, be careful. You may need to turn on Spanning Tree Protocol, if by connecting the two swithes, you create multiple paths within your network.

-tjh

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