Serviceguard lan problem on cmhaltpkg

[Luk Vandenbussche]

Hello,

When I stop a package with cmhaltpkg, when I am connected to the IP adres of the node, my telnet connection to the node resets.
I am not connected to a directory of my package on that moment.
Any Idea?

[Dietmar Konermann · Accepted solution]

Are you using gated? Then it may have deleted the routes through your stationary IP addresses.

See patch text of PHNE_17104:

Special Installation Instructions:
Note on Service Guard:
When the package IP address is added, gated changes
the routing table entry for all the routes from the primary
address to alias address, because of which, all the routes
learned through the primary address are lost.

To solve the above problem add the following statement to
gated.conf in the interface options statement:

interfaces {
options aliases-nh keepall;
};

[Animesh Chakraborty]

Hi,
There should be two IP address.
One normal server IP and another one is relocatable package IP.
If you telnet using relocatable ip then you will be disconnected.

[Luk Vandenbussche]

I'am running HPUX 11.11
So in 3 hours al can perform the gated test with the patch for hpux 11.11

I get disconnected from my fixed IP (IP adres server) adres now.
I'll keep you in touch

[Dietmar Konermann]

Hi, Luk!

If you have 11.11 make sure to install PHNE_24384 _and_ add the entry to gated.conf.

Regards...
Dietmar.

[Luk Vandenbussche]

Hello,

A few hours later then expected I performed the tests. I installed the patch. Changed the file gated.conf.
But the result is very strange.
I have a two node cluster with two packages.
Before the changes the problem exisits on the two packages. Now only one of the packages causes a lan reset at cmhaltpkg on both the nodes.

Any idea's

[Dietmar Konermann]

Hi!

Are you sure your gated is running with that conf file?

Mine says with your file:

Sep 20 11:09:00 grcdg238 gated[4700]: parse: gated.conf:14 statement out of order at 'interfaces' (267) length 10

You need to put the "interfaces" statement on top, before the "rip".

Regards...
Dietmar.

[Dirk Wiedemann]

Hello Luk,

in addition:
check if you have configured a default gateway on both nodes.
check also the routing tables (netstat -r) before and after stoping the package. Have a look which interface is used for every route.

regards
Dirk

[Luk Vandenbussche]

Dieter,

Thanks. I'll will change is and test is tomorrow. How did you test the the config of the file gated -c /etc/gated.conf doesn't give an error.

Thx

[Dietmar Konermann]

Hi, Luc!

The gated logs the error to syslog.log. BTW, as Dirk already mentioned, you need to make sure that the routes through your stationary IPs are present before you halt the package.

Regards...
Dietmar.

[Luk Vandenbussche]

Hello,

I performed some additional test and
the problem still exists.
I changed my gated.conf (rip is the last entry)
I have one default gateway for my complete
network.
Some more idea's??

[Dietmar Konermann]

Hi, Luc!

Sorry, I was out of the office for a week. We should really have a look at the routes to see if gated is your problem.

1) save a netstat -rn, netstat -an
2) run the package
3) save a netstat -rn, netstat -an
4) login to the package IP
5) save netstat -rn, , netstat -an
6) halt package
7) save a netstat -rn, netstat -an

Regards...
Dietmar.

[Luk Vandenbussche]

Problem solved