On 06/06/2011 17:35, K bharathan wrote:
hi
i'm trying to use a 1000base SFP module in cisco 2921 ISR ; on the router
SFP appears to be assigned to G0/1; but when i put a SFP-LX-SM module
nothing happens; no lights no connectivity and int is not coming up; is
there any configuration required to make fibre port identified
the following are given as certifed in a cisco doc
GLC-LH-SM= 1000Base-LX/LH 9/125 1310 Single 10 km
GLC-ZX-SM= 1000Base-ZX 9/125 1550 Single 100 km
CWDM-SFP-1470= 1000Base-CWDM 50 1470 Single 100 km
currently i'm using a converter (by TRANSITION Networks) (the SFP module in
this converter shows long range 20km)
which SFP module i can use?
You can use a GLC-LH-SM. This module (in fact, range of modules) does not
support DOM.
As you correctly note, only the GLC-* SFPs are supported on this device:
http://www.cisco.com/en/US/docs/interfaces_modules/transceiver_modules/compatibility/matrix/OL_6981.html#wp131775
Apparently, it is too much to expect Cisco to support their own transceivers.
You could try "service unsupported-transceiver" in your configuration. It
might work, or it might not - seemingly on newer code trains these days, it
doesn't work as well as it used to.
Alternatively, get yourself a third party GLC-LH-SM from a reputable
dealer. There are lots of knock-offs available in the grey market, many of
which are complete trash, and some of which are really good quality units.
Nick
_______________________________________________
cisco-nsp mailing list cisco-nsp@puck.nether.net
https://puck.nether.net/mailman/listinfo/cisco-nsp
archive at http://puck.nether.net/pipermail/cisco-nsp/
