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Questions tagged [sfp]

Small form-factor pluggables are mostly optical, modular transceivers for gigabit or 10 gigabit (SFP+) network connections.

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Combo ports and SFP

I have Netgear GSM7324s prosafe switch. Switch has 24x1G ports. 4 ports are labeled as combo ports while 2 are labeled as SFP ports. I connected 2 PCs (each having 1gig and 10Gig NICs), with the switch using 1 & 10 Gig cables. Whenever, I ping the…
Tahir
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Fibre (Fiber) Optic - Mixing SFP's and Switches

My generic question is: Can you mix switches on the opposite sides of a fibre link, or more accurately different manufactuors tranceivers. We just bought several new HP ProCurve v1810 series switches (J9450A and J9660A) and the correct HP fibre…
HaydnWVN
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What command enables non-Arista SFP+ in the DCS-7124s?

What command enables non-Arista SFP+ in the DCS-7124s? And how do you enter it?
Douglas.Shatterly.Jr
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10Gbe connection to 3 sites using Single Mode fibre. Require High Availability

An industrial site needs to link 3 seperate areas in a building in such a way that all the switches are on the same network and sharing the same wan link. The wan link will only be coming in from one of the sites and attached to the switch. ie SITE…
BOBA_FETT_81
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Must I install SFP+ transceivers in pairs?

I'm expanding the switch in our rack to a 10 GbE fiber internet feed. Specifically: we have an HP 2910al will expand the switch with a J9008A 2-port 10GbE SFP+ module will plug in 1 (2?) J9150A 10Gbase-SR tranceiver Our HP vendor tells us that we…
Stu Thompson
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Do SFP modules have their lasers off when the port is adminstratively down?

I have a Cisco SFP module that I might need in a few weeks, I don't want to pull it out but I wanted to know if I shutdown the port does it turn off the SFP module, I don't want to leave the laser on if it doesn't need to be powered on.
Peter
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mellanox connectx-3 (cx312a) link down though light is blinking

I have a system running TrueNas Scale. For some odd reasons, the system does not see the link is up even though dmesg reports it up and the light is blinking on the port. I'm not sure if this is optic's compatibility because I am using a Ericson's…
Long Tran
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HPE Proliant Gen8 FlexibleLOM options for homelab network

In my homelab rack I've got a pair of DL360p's and a pair of DL380's (one P, one E). Network hardware wise I've got a 24 port Brocade 300 and a 48 port POE+ Avaya switch with a single SFP+ port. (3549GTS-PWR+). Originally I had considered just using…
LunarLaurus
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Can wrong SFP module damage equipment?

SFP modules convert electrical data from the equipment to optical signals. There is no incoming power surging from an optical port to damage the equipment according to my undarstanding of fibre optics. SFP draws voltage/power from the equipment…
SandShriner
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Compatibility between SFP+ and SFP28 ports at 1gbps

I own a HP DL380 Gen10 with a HPE Ethernet 10/25Gb 2-port 640SFP28 (817753-B21) network card. The thing is that now I need 1gbps RJ45 connectors and those are not (strangely) present in the server. There seems to be no SFP+ adapters including RJ45…
kankamuso
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Some questions about SFP+ fiber networking in general

Ok. So I'm completely new to the world of fiber. I've used Ethernet all my life. We're looking to upgrade some of our infrastructure, and I'm thinking of getting a few of these: 10G Dual SFP+ NIC https://www.fs.com/products/75600.html for our…
AnonymousAdmin4729
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Unifi specific SFP adapters?

I have a few 10GbE SFP+ devices with Cisco plugs. I need to upgrade my network and am considering a switch from Unifi. Does anyone know if they play well with SFP+ plugs from other brands? Thanks!
kareldc
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types of SFP+ modules and cables to connect the SFP+ ports?

I did some googling about how to establish the connection between SFP+ ports. However, it seemed that there are many ways and combinations to do this. A little bit confusing. here's the problem: trying to connect datacenter server NIC(basically, the…
user53815
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100BASE-FX single-mode and multi-mode

First my assumptions (possibly wrong): 100BASE-FX -> Multi-mode fiber 100BASE-LX -> Single-mode fiber In fact, if I check some online information from CISCO regarding SFPs, it confirms my…
soyxan
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Cisco SG500X 10G-capable SFP+ port up at 1000Mbps

I am not an expert using SFP. I got a Cisco SG500X L3 switch with 4 SFP+ 10G ports. I got 2 mini-gbic HP AJ718A (8Gbps) and 1 fiber (HP 3PAR-10G-10M 850-200029 10Gbps). I plug the fiber into XG1 & XG2 ports (I know it's a loop but STP is enabled),…
Baud
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