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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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SFP Uplinks from Cisco WS-C2960S-24TS-L to Non-SFP Ports

Our department recently purchased new WS-C2960S-24TS-L switches to act as our cabinet switches. However, these will be uplinked into existing WS-2960S-24TS-L that act as the aggregation switches. What are our options for connecting these switches…
rjk
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Do 3Com switches support generic SFPs?

I have a 4200 series switch with an empty sfp port, and existing unused fiber run (62.5nm multimode) to another building that I hope to bring up, with a 1000base-SX connection on the other end. Unfortunately I'm having trouble finding a 3Com…
Joel Coel
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Is there any load when reading EEPROM inside SFP module?

I am trying to measure the optical receving/transmitting levels with ethtool on the server. It was confirmed that ethtool reads information from EEPROM inside the SFP module. When a read operation to check the optical level occurs in the EEPROM,…
beginner
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Connecting an SFP+ port to a QSFP28 switch

Background - I am working with a client trying to get a new Dell R540 server onto the client's network. They provided me with a single port on their Cisco Nexus 93240YC-FX2 Switch to connect the server to. The server has two 10GE SFP+ ports and we…
Jacob D
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How to force 1G speed for Juniper QFX5100 10G ports?

I have available a Juniper QFX5100-48S switch (48 SFP 10G ports, 6 QSFP ports) that I cannot join into our network since an SFP DAC 10G cable connecting it to an SFP port on a HP V1810-48G switch does not work (the web panel on the HP switch says…
Francesco
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What settings are needed to make a FortiSwitch 148F communicate with an HP 5130 using SFP Transceivers?

I have a FortiSwitch 148F-FPOE that will not communicate with an HP 5130 Switch. I get link lights on the ForitSwitch but not the HP. The HP 5130 has a Dell-branded SFP module and the FortiSwitch has a Axiom-branded 'for FortiSwitch' module.
nerdofreak
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Wiring for a SFP rj45

I have a CISCO Catalyst 3560G and I bought two SFP to RJ45 Copper Module for Cisco GLC-T/SFP-GE-T Gigabit 1000Base-T Transceiver. I plugged one Module into the CISCO switch and the other into a Trendnet switch. I cannot get the CISCO switch to make…
GeekyDaddy
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SFP+ iSCSI Optic Transceiver: Dell VS Other

Out of curiosity, does anyone have any experience with Dell iSCSI SAN connected with SPF+ transceivers? My question is about what makes…
MaxSantos
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"Unsupported module type was detected" during boot of Intel X520/I350 card in Dell PowerEdge R630

I've purchased a Dell PowerEdge R630 with an integrated Intel X520/I350 (2x SFP + 2x RJ45) network card. I've setup the server locally (on a 1G RJ45 network) to test that everything worked as expected and it did; everything worked, no error…
miho
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HP NC523SFP no link detected

I have two HP NC523SFP 10Gb 2-port (1 on a HP DL380e Gen8 and the other on Dell PowerEdge 2950) both systems have Centos 7, the cards are detect and are running the same firmware. I have connected directly the servers with 10Gtek SFP-H10GB-CU2M…
DarkVex
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vCenter moving VM from ISCSI target to different ISCSI target

In my server lab, I am running a vCenter cluster with 2 ISCSI targets. Both of these are directly connected to switch using SFP+ port. I assume, when I do such a process as cloning a VM from one datastore to another (say ISCSI 1 -> ISCSI 2), the…
Aibek
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How to differentiate GE, Optic and FC adapter/SFP?

I'm going through old switches laying around and find myself troubled by all the different connection types the PCI adapters and their SFP have. I found a 10GE (gigabit ethernet?) SFP that says it's a Fiber channel (Brocade 57-0000075-01) and then I…
Carobell
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SFP+ Connector Won't Latch

We're trying to connect a Cisco Meraki MS225-48 switch to a Mellanox SN2100 switch using this breakout cable. However, the SFP+ end of the cable does not physically latch into the Meraki SFP+ ports (i.e. they don't "click" into place), and even with…
Whimsical Seaplane
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Switch port VLAN configuration

I have a problem with my switch: ProCurve Switch 2810-48G I got 2 VLAN with this configuration: vlan 1 "DEFAULT_VLAN" untagged 1-36 ip address 172.16.40.201 255.255.252.0 tagged 37-48 vlan 2 untagged 37-48 tagged 1-36 With…
FabioLog
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Switches without SFP and with SFP

So I am looking at two different rackmount switches, one I do not have SFP ports on there and one that does. Would it be possible to have those two switches linked up through just looping through ports on the switch or is the SFP trunking is…
Crazy Raisin
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