Cisco Catalyst 3560 User Manual (English)

Other manuals for Cisco Catalyst 3560

Questions and Answers:

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Catherine HawkinsJul 26, 2025
Why is my Cisco Switch performing poorly and showing excessive errors?
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  omannJul 26, 2025
  Poor performance and excessive errors on your Cisco Switch can stem from several causes. One potential reason is a duplex autonegotiation mismatch. Another cause may be exceeding cabling distance limits or port statistics indicating excessive frame check sequence (FCS), late-collision, or alignment errors. For 10/100BASE-TX connections, ensure the distance between the port and the device is within 328 feet (100 meters), and for SFP port connections, adhere to SFP cabling guidelines. A bad adapter in the attached device or STP checking for possible loops can also lead to these issues. Run the adapter card diagnostic utility or wait 30 seconds for the port LED to turn green.
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stephanieleeJul 29, 2025
What to do if my Cisco Switch connected to PoE port gives no power to the powered device?
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  danielwarrenJul 29, 2025
  If a powered device connected to a PoE port on your Cisco switch isn't receiving power, it could be due to the switch not having enough power capacity. Check the PoE status for all ports using the Mode button. If the port status LED is alternating green and amber, connect the powered device to an external AC power source. Alternatively, PoE might be disabled on the switch port. If the port status LED is amber, configure the switch port PoE setting to Auto.
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Elizabeth SimpsonAug 3, 2025
Why does my Cisco Catalyst 3560 Switch have no connectivity?
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  jessicakingAug 3, 2025
  A lack of connectivity with your Cisco Switch can be due to an incorrect or faulty cable. Ensure you're using the correct type of cable (straight-through or crossover) for your setup. A crossover cable might have been used when a straight-through was required, or vice versa, or the cable is wired incorrectly. For 1000BASE-T connections, use a twisted four-pair, Category 5 cable. You can also enable the automatic medium-dependent-interface crossover (Auto-MDIX) feature. Wait 30 seconds for the port LED to turn green.
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Robert WhitakerAug 7, 2025
What to do if Cisco Catalyst 3560 Switch port is placed in error-disabled state after SFP is inserted?
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  Stephen HawkinsAug 7, 2025
  If a Cisco Switch port enters an error-disabled state after inserting an SFP, the cause might be a faulty or non-Cisco-approved SFP. Remove the SFP module and replace it with a Cisco-approved module.
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James RoweAug 11, 2025
How to fix unreadable characters on the management console of Cisco Catalyst 3560?
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  Kurt HoweAug 11, 2025
  If you're seeing unreadable characters on the management console of your Cisco Switch, the issue is likely an incorrect baud rate. Reset the emulation software to 9600 baud.
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Madison MillerAug 16, 2025
What does an amber system LED on my Cisco Switch mean?
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  Rhonda AlvaradoAug 16, 2025
  An amber system LED on a Cisco Switch indicates that a fatal POST error has been detected.
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Joshua EvansAug 20, 2025
What to do if Cisco Switch does not recognize the SFP module?
- S
  samanthaleeAug 20, 2025
  If your Cisco Switch isn't recognizing the SFP module, first check that the SFP module is not installed upside down and that the SFP module snaps into the slot. Remove the SFP module and inspect the connector, the module, and the module slot for any physical damage. Try replacing the SFP module with a known good SFP module.

Cisco Catalyst 3560 Specifications

General

Category	Switch
Switching Capacity	32 Gbps
Forwarding Rate	38.7 Mpps
Layer	Layer 3
Form Factor	Rack-mountable
RAM	128 MB
Uplinks	4 SFP ports
MAC Address Table Size	12000 entries
Routing Protocol	RIP, OSPF, EIGRP, BGP
Remote Management Protocol	SNMP, Telnet, SSH, HTTP
Features	QoS, VLAN, ACL
Operating Humidity	10% to 85% non-condensing
Ports	24 or 48 10/100/1000 ports