How do you test a SFP in a 2960X switch? In a 2960G I can loop the TX to RX on a GLC-LH-SM and the SFP and the port would go green. In the 2060X it goes amber. Anybody know what was changed to prohibit this capability?
Hi everyone
I'm trying to connect one Cisco Nexus 5548UP with a SPF 10G-LR to a one Cisco Cat 6506-E with a X2-10G-LX4 with a MMF but the connection do not goes up, I think the 10G-LR works in the same wavelength of 1300-nm, any clue about this?
I g...
Hi folks,
I am looking for a Cisco SFP datasheet for both Copper and Fiber SFP's that shows all the Chassis\Modules they support? Is there a such a list on Cisco's website? Any assistance is appreciated. Thanks
Looking over the options for 40G connections I saw one option was a QSFP to 4 SFP+ connectors. What exactly is the logical advantage of a QSFP versus a port-channel in a 3850 using 4 10G connections. It seems that most of the QSFP options utilize 4 p...
I am seeing issues with the 40Gb SFP I have.
The SFPs are all marked as QSFP-40G-CSR4 but some are marked Class1 other Class 1M.
If I have a pair of ports up and running with a Class 1M SFP at both ends, we’re getting link lights at both ends.
If ...
Hello All,
We are putting our dark fiber in line, and will need to select the channels we want to use.
Normally channel 21 - 36 are used first.
I think this has to do with channel spacing 50GHz vs 100GHz vs 200GHz, but I could be wrong.
Any insi...
My query to all of you is; If I connect a GLC-SX-MMD on a Cisco 2960S switch at one end and MGBSX1 on a SG300-28 SMB switch at the other end, will the link come up? Are these different types of modules interoperable? Can I use VLAN truncking through ...
Dear All,
Could anyone tell me if as a general rule:
1. SFP28 ports can accommodate SFP and SFP+ optics natively with no breakout cable or adapter needed? And, would one need to run a command on the port to get these 1Gbit and 10Gbit optics accepted...
My customer is asking for an estimate for Cisco SG112 switch. But I am not able to get the right GBIC sfp to provide alongwith the switch as this switch has 2 mini gbic sfp slots. Pls help
Hello,
we are planning to deploy CPT 600 in dual homing setup with CPT 50. we need to understand the physical connectivity for terminating three access rings on CPT 600. we have two PTF cards per chassis.
All,
wonder whats the best way to troubleshoot a C3850-NM-4-10G Module. I have interfaces te1/1/1, te1/1/2 and te2/1/1, te2/1/2 that are no coming up and are completely dead when I connect a media. This a 3850 stack and the port 3 and 4 for each sw...
Hi everyone
Can anyone tell me what options i have for running 10Gb over a single-strand on OS2. Getting a bit lost looking at the tech pages and i don't want to get the wrong module (if there is one). I'm looking at running over a 10 mile link. p...
Dears,
What is the EOL OSNR margin in the CTP (Cisco transport planner).
If i have SFP with 10 dB OSNR threshold and the the service in CTP has 20 dB OSNR, the OSNR margin should be 10 dB. but in the CTP OSNR margin is different. so how OSNR margin c...
