pakages on MC/ServiceGuard Cluster

[Elmar Bueker]

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.

[G. Vrijhoeven]

Hi Elmar,

This is correct. What is your question?

Gideon

[Dave Olker]

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

[CSS2, IHL Dresden]

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

[Elmar Bueker]

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

[Elmar Bueker]

SORRY!!

clusteradress is 10.16.10.1


Elmar

[CSS2, IHL Dresden]

Elmar!

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

fish

[Sridhar Bhaskarla]

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