HACMP NONIP Network over Fiber

[Cuthie]

I am trying to get the nonip network for an HACMP cluster to work over fibre, using some BlackBox converters, however, on one end when I try to cat < /dev/tty0, the redirection does not stay connected. If I loop round using a while loop, listening on the tty, I can get output from the other end.

I know that this is posible as other forum members have done this. What make/type of adapter are you using?

I get the following errpt output

---------------------------------------------------------------------------
LABEL: TS_NIM_ERROR_RDWR_E
IDENTIFIER: 90D3329C

Date/Time: Fri 19 Mar 12:11:06 2004
Sequence Number: 4850
Machine Id: nnnnnnnnnnnn
Node Id: nodename
Class: S
Type: PERM
Resource Name: topsvcs

Description
NIM read/write error

Probable Causes
Topology Services Network Interface Module (NIM) error:
Read error while trying to retrieve packets
Write error while trying to send packets

Failure Causes
Lack of 'mbufs'
Network is down
I/O errors while accessing heartbeating device
Remote side is not present

Recommended Actions
Correct device or network problem
Call IBM Service if problem persists

Detail Data
DETECTING MODULE
rsct,nim_control.C,1.29,5253
ERROR ID
6Q8noE0OBiK./T37/0UK.8....................
REFERENCE CODE

1: read operation 0: write operation
1
Error detailed information
checksum error value1: count
Error data 1
22675
Error data 2
0
Interface name
tty0

Can any one help?

Thanks

Mark