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Jason Flory
Beginner

Netflow on the C3KX-SM-10G module

I just purchased some C3KX-SM-10G modules to allow us to do Netflow on our 3750x switches.   I am being told the only transceivers you can install on these modules is fiber.  I typically enable netflow on the uplink to our MPLS for these remote sites.   The uplinks are all copper/RJ45 connections.

Does installing these modules enable netflow across the entire switch or only the ports connected to the module?

Is it true that the copper RJ45 connections are not compatible?

Thanks

9 REPLIES 9
mclarenh
Beginner

I'm fairly sure GLC-T (1G copper) SFPs are supported in the C3KX-SM-10G, per http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750x_3560x/hardware/install/notes/net_mod_note.html - Table 3

--Hugh

Heres the matrix of whats supported on those mods

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

Catalyst 3700 Series Switches Support

Catalyst 3750 series

Network Device

Transceiver Module

Minimum Software Release Required

DOM Support

Cisco IOS Release

WS-C3750G-12S
WS-C3750G-24TS
WS-C3750G-48TS
WS-C3750G-24PS
WS-C3750G-48PS

GLC-T (10/100/1000)
GLC-SX-MM
GLC-LH-SM

12.1.(14)EA1

GLC-SX-MMD
GLC-LH-SMD
GLC-ZX-SM
GLC-ZX-SMD
CWDM SFP
SFP-GE-S
SFP-GE-L
SFP-GE-Z

12.2(46)SE

12.1(14)EA1

GLC-BX-D
GLC-BX-U

12.2(46)SE

12.2(25)SEB

DWDM SFP

12.2(46)SE

12.2(40)SE

DWDM SFP (add.)

12.2(52)SE

12.2(52)SE

WS-C3750-24TS
WS-C3750-48TS

GLC-T (10/100/1000)
GLC-SX-MM
GLC-LH-SM

12.1(14)EA1

GLC-SX-MMD
GLC-LH-SMD

12.2(46)SE

12.1(14)EA1

GLC-ZX-SM
GLC-ZX-SMD
CWDM SFP
SFP-GE-S
SFP-GE-L
SFP-GE-Z

12.2(46)SE

12.1(19)EA1c

GLC-BX-D
GLC-BX-U

12.2(46)SE

12.2(25)SEB

DWDM SFP

12.2(46)SE

12.2(40)SE

DWDM SFP (add.)

12.2(52)SE

12.2(52)SE

WS-C3750-24PS
WS-C3750-48PS

GLC-T (10/100/1000)
GLC-SX-MM
GLC-LH-SM

12.1(19)EA1c

GLC-SX-MMD
GLC-LH-SMD
GLC-ZX-SM
GLC-ZX-SMD
CWDM SFP
SFP-GE-S
SFP-GE-L
SFP-GE-Z

12.2(46)SE

12.1(19)EA1c

GLC-BX-D
GLC-BX-U

12.2(46)SE

12.2(25)SEB

DWDM SFP

12.2(46)SE

12.2(40)SE

DWDM SFP (add.)

12.2(52)SE

12.2(52)SE

WS-C3750-24FS-S

GLC-T (10/100/1000)
GLC-SX-MM
GLC-LH-SM

12.2(25)SEB

GLC-SX-MMD
GLC-LH-SMD
GLC-ZX-SM
GLC-ZX-SMD
SFP-GE-S
SFP-GE-L
SFP-GE-Z
CWDM SFP
GLC-BX-D
GLC-BX-U

12.2(46)SE

12.2(25)SEB

DWDM SFP

12.2(46)SE

12.2(40)SE

DWDM SFP (add.)

12.2(52)SE

12.2(52)SE

WS-C3750-24WFS

GLC-T (1000BASE-T)
GLC-SX-MM
GLC-LH-SM

12.2(25)FZ

GLC-SX-MMD
GLC-LH-SMD
GLC-ZX-SM
GLC-ZX-SMD
SFP-GE-S
SFP-GE-L
SFP-GE-Z
CWDM SFP
GLC-BX-D
GLC-BX-U

12.2(46)SE

12.2(25)FZ

DWDM SFP

12.2(46)SE

12.2(40)SE

DWDM SFP (add.)

12.2(52)SE

12.2(52)SE

WS-C3750V2-24PS
WS-C3750V2-24TS
WS-C3750V2-48PS
WS-C3750V2-48TS
WS-C3750V2-24FS
(uplink ports)

GLC-T (10/100/1000)
GLC-SX-MM
GLC-LH-SM

12.2(50)SE

GLC-SX-MMD
GLC-LH-SMD
GLC-ZX-SM
GLC-ZX-SMD
SFP-GE-S
SFP-GE-L
SFP-GE-Z
CWDM SFP
GLC-BX-D
GLC-BX-U
DWDM SFP

12.2(50)SE

12.2(50)SE

DWDM SFP (add.)

12.2(52)SE

12.2(52)SE

GLC-EX-SMD1

12.2(58)SE

12.2(58)SE

 

Catalyst 3750-X series

Network Device

Transceiver Model

Minimum Software Release Required

DOM Support

Software Release

WS-C3750X-24T WS-C3750X-48T WS-C3750X-24P WS-C3750X-48P WS-C3750X-48PF

With C3KX-NM-1G and C3KX-NM-10G (slots 1 and 3) network modules

GLC-T (10/100/1000) GLC-SX-MM GLC-LH-SM

12.2(53)SE

GLC-SX-MMD GLC-LH-SMD GLC-ZX-SM GLC-ZX-SMD GLC-BX-D GLC-BX-U CWDM SFP SFP-GE-S SFP-GE-L SFP-GE-Z DWDM SFP DWDM SFP (add.)

12.2(53)SE

12.2(53)SE

GLC-EX-SMD1

12.2(58)SE

12.2(58)SE

WS-C3750X-24T WS-C3750X-48T WS-C3750X-24P WS-C3750X-48P WS-C3750X-48PF

With C3KX-NM-10G (slots 2 and 4) and C3KX-SM-10G network modules

GLC-SX-MM GLC-LH-SM

12.2(53)SE

GLC-SX-MMD GLC-LH-SMD GLC-ZX-SM GLC-ZX-SMD GLC-BX-D GLC-BX-U CWDM SFP SFP-GE-S SFP-GE-L SFP-GE-Z DWDM SFP DWDM SFP (add.)

12.2(53)SE

12.2(53)SE

GLC-EX-SMD1

12.2(58)SE

12.2(58)SE

WS-C3750X-12S WS-C3750X-24S

Client ports and uplink ports with C3KX-NM-1G and C3KX-NM-10G (slots 1 and 3) network modules

GLC-T (10/100/1000) GLC-SX-MM GLC-LH-SM

12.2(55)SE5

GLC-SX-MMD GLC-LH-SMD GLC-ZX-SM GLC-ZX-SMD GLC-BX-D GLC-BX-U CWDM SFP SFP-GE-S SFP-GE-L SFP-GE-Z DWDM SFP DWDM SFP (add.)

12.2(55)SE5

12.2(55)SE5

GLC-EX-SMD1

12.2(58)SE

12.2(58)SE

WS-C3750X-12S WS-C3750X-24S

Uplink ports with C3KX-NM-10G (slots 2 and 4) and C3KX-SM-10G network modules

GLC-SX-MM GLC-LH-SM

12.2(55)SE5

GLC-SX-MMD GLC-LH-SMD GLC-ZX-SM GLC-ZX-SMD GLC-BX-D GLC-BX-U CWDM SFP SFP-GE-S SFP-GE-L SFP-GE-Z DWDM SFP DWDM SFP (add.)

12.2(55)SE5

12.2(55)SE5

GLC-EX-SMD1

12.2(58)SE

12.2(58)SE

can you point out which one is RJ45 1 GB transceiver?

GLC-T (10/100/1000) like below on amazon cat5 & 6 support

http://www.amazon.com/GLC-T-Cisco-1000BASE-T-Transceiver-Module/dp/B0000C3GWT

I don't see which one you are talking about?  Right now I am trying to use fiber 1 GB and using a fiber patch cord to loop interface so it will come up then mirroring the interface I want netflow on to the module.  Kind of sucks so it would be great if I could use a standard 1 GB RJ45 gbic.

Hi Jason.

 

Eventrually are cooper transceivers GLC-T compatible with C3KX-SM-10G?

Hi Jason,

You can use either cooper transceivers GLC-T 1G or fiber transceivers GLC-SX-MM 1G or SFP-10G-SR on the respective module port all are compatible with C3KX-SM-10G module, them you can enable netflow.

Hi Denilson,

I have just opened the presale case and the engineer answered that the module C3KX-SM-10G isn't compatible with any cooper module..
Joseph W. Doherty
Hall of Fame Expert

I haven't worked with one of those modules, but I recall (?) it only supports Netflow on the module's ports.  Checking some Cisco documentation (some also noted by the other posters), there's conflicting information about support for copper transceivers.  However, the documentation also seems to say Netflow will only work on the module's ports.

"The new Cisco Service Module offers enhanced security and Flexible NetFlow (FNF) features on the uplink ports of the Cisco Catalyst 3750-X and 3560-X."  From: https://www.cisco.com/c/en/us/products/collateral/switches/catalyst-3750-x-series-switches/product_bulletin_c25-688868.html

Also looking at the "Transceiver Modules Compatibility Matrix", for both gig and 10g, I don't see any copper transceivers listed for that module.
https://www.cisco.com/c/en/us/td/docs/interfaces_modules/transceiver_modules/compatibility/matrix/GE_Tx_Matrix.html
https://www.cisco.com/c/en/us/td/docs/interfaces_modules/transceiver_modules/compatibility/matrix/10GE_Tx_Matrix.html

Interestingly, the product info also notes 15.0(1)SE is needed, while the transceiver matrix references start with 12.2(53)SE.  Further, "Installation Notes'" Table 3 (https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750x_3560x/hardware/install/notes/net_mod_note.html) excludes the GLC-T from the C3KX-NM-10G but not the C3KX-SM-10G.  Also this document also notes "The service module supports Net Flow and MACSec Uplink Encryption (switch- to-switch encryption between uplinks). "

 

Possibly the only way to tell for sure is to try it.  Also possibly if a copper transceiver doesn't work, perhaps enabling "service unsupported-transceiver" would allow it to work, although w/o Cisco support.