Optics and Optical Networking

I am trying to figure out the correct optical cables to use for my switch. The old one was using the GLC-SX-MM connectors and optical cable 62.5/125 MM-2.0x 4.1 OFNR. Not sure if these would work for the new one or not. Any suggestions on how to figu...

What is the difference between a SFP GLC-LH-SMD++ and GLC-LH-SMD I cannot seem to find any information on these SFP's

HiI installed an SPF into my Cisco WS-C2960-8TC-Si and when I hook everything up the indicator LED lights are not coming on.I have been using this switch for a wile and I wanted to upgrade the connection from the switch to the router with FO.I purcha...

Hello, Is there any dangers of using 20KM SMF SFP instead of already existing 10KM SFP reach ? Thanks

Hi all, Just wanted to clarify is this transceiver GLC-BX-U has patch cord of LC? if yes, what are the model ? Someone please assist , thank you

ASR-920-24SZ-IM interface went down after upgrade 3.18.04 to 3.18.06We do not see any error codes in the logs.We believe something is wrong in the code in the ASR-920-24SZ-IM  otthe SFPs? We tried changing 10 gigs SFP and have them not plugged in dur...

I was wondering which "transceiver type" is the correct one for a SFP that will be going into a Cisco 9k. Doing a "show version" this is our switch model.cisco Nexus9000 C93180YC-FX Chassis I tried this SFP in the link below but it did not work. When...

Hi I am not a network person, please answer me like I am a three year old.I have a WS-C2960-8TC-S; (actually the case says "Si")  SN: FOC1529V12A. I would like to purchase a SFP Transceiver  so I can send it a FO signal. 1) Which SFP Transceiver shou...

Hi I just want to ask if GLC-BX-D/U are compatible to all single mode fiber optic cables? Thank you.

I got this number below the series of each GLC-SX-MM SFP's i had which is;GLC-SX-MM / 30-1301-01GLC-SX-MM / 30-1301-02GLC-SX-MM / 30-1301-03GLC-SX-MM / 30-1301-04 What the difference behind these numbers? anyone could help me? thanks

Thanks for reading.With ASR/7609, i use 1.3.6.1.2.1.47.1.1.1.1.7 to get  tx/rx power senor's indexs,and use 1.3.6.1.4.1.9.9.91.1.1.1.1.4 to get their values.But with CRS i neither get the indexs nor the values. So, how can i get the crs's tx/rx power...

Hello All, I have a 4948E-10G that doesn't have any devices attached,  but it does have a one port loopback and its generating traffic.  Is that normal?   Specifically, I have a SFP installed in Te1/49.  That SFP is attached to a fiber that goes out ...