Can 10Gb Switch Port Connect to Gigabit Switch Port?
10G SFP+ Port on 10Gb Switch Consider 1G SFP Optics on Gigabit Switch generally in most Situations
Will 1Gb SFP transceivers/modules work with 10Gb SFP+ ports? The answer is “Yes” in most cases. There are various vendors providing 10Gb switches that may consider both a 10G SFP+ and a 1G SFP in the 10Gb SFP+ slot, but not simultaneously for apparent reasons. This program is supported by dual speed operation. So before plugging a SFP transceiver in to the SFP+ port on your own 10GbE switch, one must seek advice from your rep to ensure the 10Gb switch port support dual speed.
To achieve link of 10Gb switch port to gigabit switch port, this is a simple guide. Use a 1Gb SFP module on the 10GbE switch SFP+ port and the gigabit switch 1Gb SFP port respectively, then connect the 10Gb switch and the gigabit switch with corresponding 1Gb SFP fiber cable or Ethernet copper cable (eg. Cat6).
1G SFP Port on Gigabit Switch Cannot Take 10Gb SFP+ Optics on 10Gb Switch in every Cases
Will 10Gb SFP+ running at 1Gb? The answer is certainly “No”. SFP optics do work in SFP+ slots generally, but SFP+ optics on 10Gb switch can't ever work in SFP slots on gigabit switch. Associated with in regards to a power availability thing. As we realize, once an module is usually installed, the speed of the port is set. Most SFP+ slots are backward compatible with Cisco SFP modules to perform at 1G speed. However, the SFP slots on gigabit switch cannot support the 10G speed required by SFP+ modules. For example, most Cisco and OEMfibers 10Gb switches support 10G SFP+ and 1G SFP optics on the SFP+ ports. However, many Brocade gear and HP A-series models are SFP+ only. One have to check the compatibility of the switch with owner rep.
SFP+ Optics in a 10Gb Switch Cannot Auto-negotiate Right down to 1G when the Other End Is Gigabit Switch
Unlike copper SFP modules supporting 10/100/1000 auto-sensing, fiber optics usually do not support auto-negotiation. Because this technology is based on electrical pluses however, not optical pluses. Thus 10Gb SFP+ optics on 10Gb switch cannot auto-negotiate right down to 1Gb if the other end is definitely gigabit switch. Actually, most SFP and SFP+ transceivers only run at its rated speed and the transceivers at both end of the cable should at the same speed. For instance, if a 10Gb SFP+ module is connected to the 10Gb switch port, it'll only run at 10Gb. In this case in the event that you link it to the gigabit switch port, you won't work. When sticking a 1Gb SFP module in the 10G SFP+ port, the 10Gb switch is only going to run at 1Gb. As thus you can link it to gigabit switch.
Sometimes the 10GbE switch port would lock the speed at 1G until you reconfigure the switch to 10G. It really is noted that SFP+ port usually enables a speed under 1G, this means one cannot insert 100Base SFP modules into SFP+ ports on 10Gb switch.
Will 1Gb SFP transceivers/modules work with 10Gb SFP+ ports? The answer is “Yes” in most cases. There are various vendors providing 10Gb switches that may consider both a 10G SFP+ and a 1G SFP in the 10Gb SFP+ slot, but not simultaneously for apparent reasons. This program is supported by dual speed operation. So before plugging a SFP transceiver in to the SFP+ port on your own 10GbE switch, one must seek advice from your rep to ensure the 10Gb switch port support dual speed.
To achieve link of 10Gb switch port to gigabit switch port, this is a simple guide. Use a 1Gb SFP module on the 10GbE switch SFP+ port and the gigabit switch 1Gb SFP port respectively, then connect the 10Gb switch and the gigabit switch with corresponding 1Gb SFP fiber cable or Ethernet copper cable (eg. Cat6).
1G SFP Port on Gigabit Switch Cannot Take 10Gb SFP+ Optics on 10Gb Switch in every Cases
Will 10Gb SFP+ running at 1Gb? The answer is certainly “No”. SFP optics do work in SFP+ slots generally, but SFP+ optics on 10Gb switch can't ever work in SFP slots on gigabit switch. Associated with in regards to a power availability thing. As we realize, once an module is usually installed, the speed of the port is set. Most SFP+ slots are backward compatible with Cisco SFP modules to perform at 1G speed. However, the SFP slots on gigabit switch cannot support the 10G speed required by SFP+ modules. For example, most Cisco and OEMfibers 10Gb switches support 10G SFP+ and 1G SFP optics on the SFP+ ports. However, many Brocade gear and HP A-series models are SFP+ only. One have to check the compatibility of the switch with owner rep.
SFP+ Optics in a 10Gb Switch Cannot Auto-negotiate Right down to 1G when the Other End Is Gigabit Switch
Unlike copper SFP modules supporting 10/100/1000 auto-sensing, fiber optics usually do not support auto-negotiation. Because this technology is based on electrical pluses however, not optical pluses. Thus 10Gb SFP+ optics on 10Gb switch cannot auto-negotiate right down to 1Gb if the other end is definitely gigabit switch. Actually, most SFP and SFP+ transceivers only run at its rated speed and the transceivers at both end of the cable should at the same speed. For instance, if a 10Gb SFP+ module is connected to the 10Gb switch port, it'll only run at 10Gb. In this case in the event that you link it to the gigabit switch port, you won't work. When sticking a 1Gb SFP module in the 10G SFP+ port, the 10Gb switch is only going to run at 1Gb. As thus you can link it to gigabit switch.
Sometimes the 10GbE switch port would lock the speed at 1G until you reconfigure the switch to 10G. It really is noted that SFP+ port usually enables a speed under 1G, this means one cannot insert 100Base SFP modules into SFP+ ports on 10Gb switch.
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