topic pakages on MC/ServiceGuard Cluster in Operating System - HP-UX

pakages on MC/ServiceGuard Cluster

Elmar Bueker — Tue, 07 Sep 2004 08:26:18 GMT

Hi!

I can't see any source network packages on my aktive MC/ServiceGuard node with tcpdump.
I can only see packages form other hosts with the destionation adress of the node.
It's a K 420 Server with two netwokadapters (HP-UX 10.20).
One SX1000 aun one for the heartbeat.

Re: pakages on MC/ServiceGuard Cluster

G. Vrijhoeven — Tue, 07 Sep 2004 09:47:53 GMT

Hi Elmar,

This is correct. What is your question?

Gideon

Re: pakages on MC/ServiceGuard Cluster

Dave Olker — Tue, 07 Sep 2004 09:48:17 GMT

Hi Elmar,

Can you please be a little more specific about what you're hoping to find with tcpdump and what you're currently seeing? What do the commands:

# cmviewcl -v

and

# netstat -in

return on the server you're using tcpdump to analyze? Are you trying to sniff the packets sent to a virtual IP address associated with a SG package?

Regards,

Dave

Re: pakages on MC/ServiceGuard Cluster

CSS2, IHL Dresden — Wed, 08 Sep 2004 12:59:57 GMT

Hi Elmar,

let me guess, what's your question: you are missing network packets with the source address of the cluster package, right? So far as I know is this not possible, the cluster package address ist always a secondary (or virtual) network address in the Form of "lan0:1" for example. So the sender node (the momentary cluster home) will always use the main ip-address for source.

fish

Re: pakages on MC/ServiceGuard Cluster

Elmar Bueker — Thu, 09 Sep 2004 07:50:52 GMT

Hi!

I'm missing all packages with the source address of either the clusteraddress or the adress auf the physicaladress.

The physical adress is 10.16.10.10 and the clusteradress ist 10.16.0.1

cmvievcl -v:

CLUSTER STATUS
pgam_gmh up

NODE STATUS STATE
sr1mc up running

Network_Parameters:
INTERFACE STATUS PATH NAME
PRIMARY up 8/12/1/0 lan2
PRIMARY up 10/12/6 lan1

PACKAGE STATUS STATE PKG_SWITCH NODE
sr1 up running enabled sr1mc

Script_Parameters:
ITEM STATUS MAX_RESTARTS RESTARTS NAME
Subnet up 10.16.0.0

Node_Switching_Parameters:
NODE_TYPE STATUS SWITCHING NAME
Primary up enabled sr1mc (current)
Alternate up enabled sr2mc

NODE STATUS STATE
sr2mc up running

Network_Parameters:
INTERFACE STATUS PATH NAME
PRIMARY up 16/6 lan0
PRIMARY up 20/5/1 lan1

netstat -i:

Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll
ni0* 0 none none 0 0 0 0 0
ni1* 0 none none 0 0 0 0 0
lo0 4608 loopback localhost 7437283 0 7437283 0 0
lan1 1500 192.100.100 sr1eth 14113906 21 4707864 0 439
lan2 1500 10.16 sr1mc.gmh.pgam.com
1646803404 80 1175577871 0 0
lan2 1500 10.16 sr1 1646803404 80 1175577871 0 0

ifconfig lan2:

lan2: flags=1863
inet 10.16.10.10 netmask fff00000 broadcast 10.31.255.255

Elmar

Re: pakages on MC/ServiceGuard Cluster

Elmar Bueker — Thu, 09 Sep 2004 07:52:08 GMT

SORRY!!

clusteradress is 10.16.10.1

Elmar

Re: pakages on MC/ServiceGuard Cluster

CSS2, IHL Dresden — Thu, 09 Sep 2004 11:48:04 GMT

Elmar!

It seems the Cluster-IP is not correct configured in control.sh. Please try 'netstat -in' for numerical output of addresses.

fish

Re: pakages on MC/ServiceGuard Cluster

Sridhar Bhaskarla — Thu, 09 Sep 2004 13:28:13 GMT

Hi,

I do not see lan2:1 corresponding to the virtual IP. Can you actually copy and paste
the outputs of

#netstat -in
#netstat -rn

on both the nodes?.

-Sri