| Solution # |
K10056080 |
| Title |
Ports go into err-disable with the “%PHY-4-SFP_NOT_SUPPORTED:” error message when connecting Catalyst 3560 and Catalyst 3750 Switches using an SFP Interconnect Cable |
| Core issue |
The Cisco Catalyst 3560 Small Form-Factor Pluggable (SFP) Interconnect Cable (Part No. CAB-SFP-50CM=) provides for a low-cost, point-to-point, Gigabit Ethernet connection between Catalyst 3560 Series Switches. The 50-centimeter (cm) cable is an alternative to using SFP transceivers when interconnecting Catalyst 3560 Series Switches through their SFP ports over a short distance. All Cisco Catalyst 3560 Series Switches support the SFP Interconnect Cable.
When a Catalyst 3560 Switch is connected to a Catalyst 3750 or any other type of Catalyst switch model, you cannot use the CAB-SFP-50CM cable. The only way to connect is to use an SFP or GBIC module. |
| Resolution |
You may connect both switches using a copper cable with SFP (GLC-T=) on both devices instead of a CAB-SFP-50CM= cable.
Note: In order to support the SFP Interconnect Cable in Catalyst 3560, you must be running Cisco IOS® Software Release 12.2(25)SEA or later.
For more information, refer to Cisco Catalyst 3560 Series Switches. |
| Problem Type |
Errdisable status
Syslog error message received |
| Catalyst switch |
Catalyst 3550 series switches
Catalyst 3560 series switches
Catalyst 3750 series switches |
| Catalyst switch modules |
SFP Module |
| Switch software |
Cisco IOS system software |
| Device connected to switch |
Another Switch |
| Error message |
%PHY-4-SFP_NOT_SUPPORTED: |
| Direct URL |
http://www.ciscotaccc.com/lanswitching/showcase?case=K10056080 |
