40G CFP optics in the new Catalyst 6807-XL, connectivity issues
We are implementing a project with the new Catalyst 6807-XL switches and 40G CFP-40G-SR4 optics inserted in the WS-X6904-40G linecards.
We've tested conectivity between two 40G CFP optics using a MMF OM4 50 microns MPO-MPO jumper and the test was unsuccessful, The electronics seem to be working all right, so we suppose it's a problem with the jumper.
Have you had any experience regarding this 40G optics conectivity?
To interconnect two 40G CFP optics, you have to have crossover MPO-MPO jumpers.
LC/SC jumpers can be "twisted" onsite to make them crossover, but 40G jumpers can't, because their CFP form factor doesn't allow you to do so. You have to get the MPO-MPO manufactured in a crossover fashion.
There are also some more complex matrix to make this inversion of Rx/Tx using MPO-MPO straighthrough jumpers, but the easy way out is to buy crossover MPO-MPO jumpers.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.