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New Member

IBM OSA cards and FDDI

hi,

I have the following:

1-IBM mainframe:

----------------------

- has two OSA cards (with FDDI ports)

- Each OSA has two IP address's one for TEST and one for Production

- The two OSA have different MAC address.(user defined MAC)

2- two Ciso 5505:

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-Each switch has FDDI module

I'm trying to connect the two 5505 to the two OSA by FDDI ,in this case I'll get two dual ring ,one for each OSA. as follows

5505(1) port A ----------------> OSA 1 port B

5505(1) port B -----------------> OSA 2 port A

5505(2) port A ----------------> OSA 2 port B

5505(2) port B -----------------> OSA 1 port A

for the 5505(1) I got the dual ring ..no problem A and B up

but for the second no

I got port B of 5505(1) up but the second is off (isolated)???

what does it mean if FDDI port isolated ???

is the OSA cards support dual homing or is this setup will work ???

I treid many scenarios ,I got the best result by this scenario??

please help

thanks

1 REPLY
New Member

Re: IBM OSA cards and FDDI

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