Cisco Catalyst 3850 SFP+ feature

[Kourilenko Konstantin]

Hi ALL.

I reed datasheet on WS-C3850 series switches and see in this document that 3850XS support 1/10G SFP+

WS-C3850-12XS

12 1/10G SFP+

What is 1/10G SFP+?

Really there is SFP+ with support of speed 1Gbit/s or this SW support SFP modules?

[Mark Malone]

Hi

These are the new 10GB switches range but the ports are also backward compatabile to a 1GB , so standard as 10gb but can be 1gb too

[Kourilenko Konstantin]

Hi Mark.

Many thanks for you answer.

That is in 3850XS I can connect SFP to the same ports as SFP+?

[Mark Malone · Accepted solution]

Yes you can there backward compatible , obviously the type of sfp needs to be supported in the platform but once it is yes you can use a gb sfp in an sfp+ 10gb port

[David Amalorpavam]

.

[Julio E. Moisa]

Hi

Usually there are modules of SFPs for:

GigaEthernet only,

Gigaethernet and 10Giga

and 10 Giga only. 

You should see what module has installed the device, you will see a small words like: G1 (Por 1 GigaEthernet) or G3 - TE 3 (Port 3 Giga or Ten) below the SFP modules. Now for the other 12 ports you need to verify if they support 10G or just 1Gb.

http://www.cisco.com/c/en/us/products/switches/catalyst-3850-series-switches/models-comparison.html

https://www.google.com.sv/search?q=cisco+3850+modules&rlz=1C1HIJA_enSV704SV704&espv=2&biw=1242&bih=602&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjImYKCr8TSAhWB0iYKHVSMAjQQ_AUIBigB#imgrc=-TsR9H9_eSLvkM:

[Kourilenko Konstantin]

Hi.

I not have question for use additional NM-module for WS-C3800. This is clear.

I want to understand it is possible to use SFP and SFP + modules in one ports for WS-C3850-XS.

For example: I have WS-C3850-12XS and two modules SFP-10G-SR and GLC-LH-SM. I will be able to connect these two modules to any two built-in ports of this SW at the same time?

[Julio E. Moisa]

Hi 

If your devices is WS-C3850-12X48U-S and we are based on the attached table, Multi Giga Ethernet ports, you can use SFP or SFP+  for 12 ports and optional until other 8 x 10 Ten Gig (SFP+)  if a module is installed. 

WS-C3850-12X48U-S

36 UPOE

12 UPOE

1100 W, 800 W

4 x 1 GE 2 x 10 GE 4 x 10 GE 8 x 10 GE 2 x 40 GE

Yes

This link could be useful:

https://www.cnet.com/products/cisco-catalyst-3850-12xs-s-switch-12-ports-managed-rack-mountable/specs/

:-)

[Julio E. Moisa]

Hi 

The following links could be useful, verify the SFP supported by model:

http://www.cisco.com/c/en/us/td/docs/interfaces_modules/transceiver_modules/compatibility/matrix/GE_Tx_Matrix.html#_Toc462044413

http://www.cisco.com/c/en/us/td/docs/interfaces_modules/transceiver_modules/installation/note/78_15160.html

Cisco SFP+ modules offer the following features and benefits.

●   Industry’s smallest 10G form factor for greatest density per chassis

●   Hot-swappable input/output device that plugs into an Ethernet SFP+ port of a Cisco switch (no need to power down if installing or replacing)

●   Supports “pay-as-you-populate” model for investment protection and ease of technology migration

●   Digital optical monitoring capability for strong diagnostic capabilities

●   Optical interoperability with 10GBASE XENPAK, 10GBASE X2, and 10GBASE XFP interfaces on the same link

●   Cisco quality identification (ID) feature enables a Cisco platform to identify whether the module is certified and tested by Cisco

Catalyst 3850 series
Network Device	Transceiver Model	Minimum Software Release Required
		DOM Support	Software Release
WS-C3850-12XS WS-C3850-16XS WS-C3850-24XS WS-C3850-32XS (with C3850-NM-8-10G NM)	GLC-T (10/100/1000) GLC-LH-SM GLC-LH-SMD GLC-SX-MM GLC-SX-MMD GLC-EX-SMD1 GLC-ZX-SM GLC-ZX-SMD GLC-BX-D GLC-BX-U CWDM SFP SFP-GE-S SFP-GE-L SFP-GE-T SFP-GE-Z DWDM SFP DWDM SFP (add.) GLC-BX40-D-I GLC-BX40-DA-I GLC-BX40-U-I GLC-BX80-D-I GLC-BX80-U-I	XE 3.7.1	XE 3.7.1
WS-C3850-48XS-S WS-C3850-48XS-E WS-C3850-48XS-F-S WS-C3850-48XS-F-E WS-C3850-48XS	GLC-T (10/100/1000) GLC-LH-SM GLC-LH-SMD GLC-SX-MM GLC-SX-MMD GLC-EX-SMD1 GLC-ZX-SM GLC-ZX-SMD GLC-BX-D GLC-BX-U CWDM SFP SFP-GE-S SFP-GE-L SFP-GE-T SFP-GE-Z DWDM SFP DWDM SFP (add.) GLC-BX40-D-I GLC-BX40-DA-I GLC-BX40-U-I GLC-BX80-D-I GLC-BX80-U-I	XE 3.7.2	XE 3.7.2

Hope it is useful

:-)

[Joseph W. Doherty · Accepted solution]

I believe others have already answered, but a SFP+ port supports either gig or 10g, which is actually used, gig or 10g, depends on whether a gig or 10g transceiver is used in the port.

So on that switch you can have any combination of gig or 10g for its 12 ports.