SSH commands to HMC

All,

I am sending hmc commands to an HMC from a UNIX
command-line using ssh.
On the first call the connection times out (see
below).
On the subsequent call (immediately afterwards) it
connects and runs OK, as do any other iterations.
If I leave it a few minutes, I'm back to a timeout and
then it continues OK.

root@node9>ssh -l hscroot 10.26.10.21 date
ssh: connect to host 10.56.0.224 port 22: Connection
timed out

root@node9>ssh -l hscroot 10.26.10.21 date
Sun Sep 10 00:20:58 BST 2006

This is hopeless for scripting.Anyone know what causes
it ?





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