11-09-2009 10:20 AM - edited 03-06-2019 08:31 AM
Hi,
I m trying to connect 3com switch to cisco switch 3560 with sfp (Fiber). But interfaces not cumming up, can u pls suggest me if i need to use any converter in between this one.
Regards,
Sunish
11-09-2009 01:07 PM
Hello Sunish,
you need to check the SFP type and the type of fiber used.
SFP SX -> you need to use multi mode fiber
SFP LX -> you need to use single mode fiber
and you need to cross connect fibers
cisco tx ---- > 3com rx
cisco rx <---- 3com tx
Sorry for this basic suggestion.
also it may be wise to use a pair of SFP of the same vendor.
Hope to help
Giuseppe
11-09-2009 03:27 PM
Hi Giuseppe,
We tested the same thing with different fiber optical cables. But we are facing same problem, even from 3com to 3com also. Finally we getting in to conclusion we need to use fiber optical converter, it will convert fiber to UTP. Because 3com switch module will not support point to point connectivity.
If you any idea about this one pls let me know
once again thanks for your replay.
Regards,
Sunish
11-10-2009 11:42 AM
Hello Sunish,
on cisco side try
int gi0/x
switchport nonegotiate
Hope to help
Giuseppe
11-11-2009 12:49 PM
Hi Giuseppe,
Thanks for your replay. We used the Fiber Converter on our network, After that it's start to work. There is no porblem from Cisco Switch. Problem with the 3com switch Fiber module. It will not support Fiber to Fiber connectivity. It will support only with the help of Fiber coverter..
Thanks once again .
Regards,
Sunish
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