Optics and Optical Networking

Dear Team, I have Cisco 4503 and I have inserted 1000BaseLH and light is not coming up but for 1000BaseSX its fine. Please suggest. CORE#show int GigabitEthernet1/18GigabitEthernet1/18 is down, line protocol is down (notconnect)  Hardware is Gigabit ...

Hello! I have a few questions about the 40GE QSFP adapter that i hope someone will be able to anwer. I have been reading this Cisco documenthttp://www.cisco.com/c/en/us/products/collateral/interfaces-modules/transceiver-modules/data_sheet_c78-660083....

Can I Connect MM Equipment to a MM Switch using SM Fiber Optic?I know the correct way is use MM fiber, But Could I Use SM fiber optic to connect a equipment that have MM port to our switch that have MM port?Thanks!

Ciao, we are just facing a strange behavior on a FO SM link (span is about 2km).The link connects one 4506 with X2-10GB-LR to a Nexus 3548 with a 10Gbase-LR: the link is up & running.The strange behavior is the TX power registered by the X2:KL-MENARA...

We have some X2-10GB-SR v04 that we noticed that the FTLX8541E2-C4 versions include the diagnostic monitoring DOM support. However, the FTLX8541E2-C2 parts do not. I haven't been able to find any part disclaimers showing some of the v04 do not includ...

show hw-moduleshow controllers dwdmThese seem to only allow viewing light levels on ten gig interfaces.  I do have compatible DOM enabled SFP in place as well.  

Hi All,Can the Cisco SFP-10G-LRM  transceiver be used with Multimode OM3 fiber? if so, what would be the cable distance?thanks

I have an LC/APC fiber patch cord infrastructure and I want to connect it to Cisco Catalyst 6500 & Cisco Access 3750 Switches. what type of transceiver should be used?I read a note on Cisco website stating the following for Cisco SFP+ transceivers:No...

I have an LC/APC fiber patch cord infrastructure and I want to connect it to Cisco Catalyst 6500 & Cisco Access 3750 Switches. what type of transceiver should be used?I read a note on Cisco website stating the following for Cisco SFP+ transceivers:No...

Problem Description:I have a customer, who is connecting JDSU BERT tester to the Client ports of 10x10G card at one location and gave physical loop on the other end client port and as a result we saw millions of pcs errors (pcs49RxErrBer & pcs49RxErr...

I needed to support 10G on both fiber and copper so I ordered and nexus 3064T and sfp-10g-sr.  However there are not any sfp+ slots on the switch.  Looking back at the documentation it appears to support sfp+, but I can't see how.  The qsfp slots app...

Dears,how can access on management Cisco OLT GPON device (4602) , where i don't have serial cable ?what is the default management IP address and in which port configured ? Please need your assistance  Regards,Mohammed Riyad  

OK this is an issue that I have been having since we loaded Optical Prime 9.3.1. I thought it might have been solved in OP 9.6, it hasn't.  We are running both on two separate Red Hat 5.8 servers that are spot on to the NTP server we have.  The NTP i...