Cisco Catalyst 4900 Series Switches

Data Sheets and Product Information

At-a-Glance

• Cisco Network Assistant At-a-Glance 14-May-2008 (PDF - 371 KB)

Data Sheets

• Cisco Catalyst 4948 Switch Data Sheet 15-Jan-2016
• Cisco Catalyst 4948E and 4948E-F Ethernet Switches Data Sheet 10-Aug-2014
• Cisco Catalyst 4948 10 Gigabit Ethernet Switch Data Sheet 10-Aug-2014
• Cisco Catalyst 4900M Switch Data Sheet 10-Aug-2014
• Cisco Catalyst 4928 10 Gigabit Ethernet Switch Data Sheet 09-Jan-2014

End-of-Life and End-of-Sale Notices

• English

  • End-of-Sale and End-of-Life Announcement for the Cisco Catalyst 4948E Switch Accessories 03-Aug-2020
  • End-of-Sale and End-of-Life Announcement for the Cisco Catalyst 4948E Ethernet Switch 01-Feb-2019
  • End-of-Sale and End-of-Life Announcement for the Cisco Catalyst 4900M Switch 29-Mar-2018
  • End-of-Sale and End-of-Life Announcement for the Cisco Catalyst 4948 Switch Accessories 25-Jul-2014
  • End-of-Sale and End-of-Life Announcement for the Cisco Catalyst 4948 Switch 29-Mar-2018
  • End-of-Sale and End-of-Life Announcement for the Cisco Catalyst 4948-10GE, Cisco Catalyst 4928-10GE, and Cisco ME 4924-10GE Switches 29-Mar-2018

• French - Canadian

  • Annonce d’arrêt de commercialisation et de fin de vie de Cisco Catalyst 4948E Switch Accessories 03-Aug-2020
  • Annonce d’arrêt de commercialisation et de fin de vie des commutateurs Cisco Catalyst 4900M 03-Nov-2015
  • Annonce d’arrêt de commercialisation et de fin de vie des commutateurs Ethernet Cisco Catalyst 4948E 31-Oct-2016

Security Notices

Bulletins

• Cisco IOS Software Release 12.2(31)SG for Cisco Catalyst 4900 Series Switches 29-Jul-2020

Field Notices

• Applicable to Multiple Models

  • Field Notice: FN - 63746 - Catalyst C4500 and Catalyst 49xx Might Fail to Boot Up After a Software Upgrade or Power Cycle - Replace on Failure 10-Sep-2018

• Cisco Catalyst 4948 10 Gigabit Ethernet Switch

  • Field Notice: FN - 63128 - Laser of X2-10GB-SR May Remain Off on ME-4924-10GE, WS-C4928-10GE and WS-C4948-10GE After Reload - Replace X2-10GB-SR 12-Jun-2008
  • Field Notice: FN - 62488 - WS-C4948-10GE May Reset Due to Multibit ECC Error 17-Mar-2008

• Cisco Catalyst 4900M Switch

  • Field Notice: FN - 63463 - WS-C4900M Missing Plate Covers for Power Supply 4900M-PWR-CVR= 21-Nov-2011

Release and Compatibility

Release Notes

• Cisco Catalyst 4900M Switch

  • Release Notes for Catalyst 4900M, Catalyst 4948E and Catalyst 4948E-F Series Switches, Cisco IOS Release 15.2(4)Ex 30-Sep-2020
  • Release Notes for Catalyst 4900M, Catalyst 4948E and Catalyst 4948E-F Series Switches, Cisco IOS Release 15.2(2)Ex 31-May-2019
  • Release Notes for Catalyst 4900M, Catalyst 4948E and Catalyst 4948E-F Series Switches, Cisco IOS Release 15.2(3)Ex 29-Jul-2015
  • Release Notes for Catalyst 4900M, Catalyst 4948E and Catalyst 4948E-F Series Switches, Cisco IOS Release 15.2(1)Ex 07-Jul-2014

• 15.x(x)SGx

  • Release Notes for the Catalyst 4900M Series Switch and the Catalyst 4948E Ethernet Switch, Cisco IOS 15.1(2)SGx 04-Dec-2017
  • Release Notes for the Catalyst 4900M Series Switch and the Catalyst 4948E Ethernet Switch, Cisco IOS 15.1(1)SG 30-Jun-2014
  • Release Note for Catalyst 4900M and Catalyst 4948E Switch, Release 15.0(2)SG 28-Apr-2011
  • Release Note for Catalyst 4900 Series Switch, Release 15.0(2)SG 03-Nov-2016

• 12.2(xx)SG

  • Release Note for Catalyst 4948 Series Switch, Cisco IOS Release 12.2(54)SGx and 12.2(53)SGx 18-Aug-2014
  • Release Note for Catalyst 4900M Series Switch and Catalyst 4948E Ethernet Switch, Cisco IOS Release 12.2(54)SGx and 12.2(53)SGx 18-Aug-2014
  • Release Note for Catalyst 4900M Series Switch, Cisco IOS, 12.2(53)SG3 27-Aug-2010
  • Release Note for the Cisco 4900M Switch, Cisco IOS, 12.2(53)SG2 09-Jun-2010
• Release Notes for the Cisco Catalyst 4948E-F Ethernet Switch on Release 12.2(54)WO 21-Dec-2010

Reference

Command References

• Catalyst 4900 and 4500 Series Switches share command information. Refer to the documentation at the locations below:

  • Catralyst 4500 Series Switch Cisco IOS Command Reference, Release IOS XE 3.5.0E and IOS 15.2(1)E 27-Aug-2013
  • Catalyst 4500 Series Switch Cisco IOS Command Reference, Release IOS XE 3.4.xSG and IOS 15.1(2)SGx 05-Dec-2012
  • Catalyst 4500 Series Switch Cisco IOS Command Reference, Release IOS XE 3.3.0SG and IOS 15.1(1)SG 16-Apr-2012
  • Catalyst 4500 Series Switch Cisco IOS Command Reference, 15.0(2)SG 06-Mar-2011
  • Catalyst 4500 Series Switch Cisco IOS Command Reference, 12.2(54)SG 07-Mar-2010
  • Catalyst 4500 Series Switch Cisco IOS Command Reference, 12.2(53)SGx 27-Jul-2009
  • Catalyst 4500 Series Switch Cisco IOS Command Reference, 12.2(52)SG 14-Nov-2007
  • Catalyst 4500 Series Switch Cisco IOS Command Reference, 12.2(50)SG 14-Nov-2007
  • Catalyst 4500 Series Switch Cisco IOS Command Reference, 12.2(46)SG 14-Nov-2007
  • Catalyst 4500 Series Switch Cisco IOS Command Reference, 12.2(44)SG 14-Nov-2007
  • Catalyst 4500 Series Switch Cisco IOS Command Reference, 12.2(40)SG 14-Nov-2007
  • Catalyst 4500 Series Switch Cisco IOS Command Reference, 12.2(37)SG 04-May-2007
  • Catalyst 4500 Series Switch Cisco IOS Command Reference, 12.2(31)SG 30-May-2007
  • Catalyst 4500 Series Switch Cisco IOS Command Reference, 12.2(31)SGA 30-May-2007
  • Catalyst 4500 Series Switch Cisco IOS Command Reference, 12.2(25)EWA 04-May-2007
  • Catalyst 4500 Series Switch Cisco IOS Command Reference, 12.2(25)SG 30-May-2007
• Catalyst 4500 Series Switch Cisco IOS Command Reference, IOS XE 3.8.xE and IOS 15.2.(4)Ex 18-Apr-2016
• Command Reference BookMap123 29-Apr-2010

Install and Upgrade

Install and Upgrade Guides

• Cisco Catalyst 4948 10 Gigabit Ethernet Switch

  • Catalyst 4948-10GE Installation Guide 04-May-2007

• Cisco Catalyst 4948 Switch

  • Catalyst 4948 Install Guide 06-May-2007

• Cisco Catalyst 4948E Ethernet Switch

  • Catalyst 4948E and Catalyst 4948E-F Switch Installation Guide 28-May-2010
• Cisco Catalyst 4900M Switch Installation Guide 06-Jan-2016
• Catalyst 4900 Family Center Rack-Mount Kits Installation Note 19-Jan-2011
• Catalyst 4900 Series Switch Installation Guide 03-Apr-2006

Install and Upgrade TechNotes

• Configuration example to migrate Spanning Tree from PVST+ to MST 26-Sep-2014

Configuration

Configuration Examples and TechNotes

• Configuring EtherChannel and 802.1Q Trunking with Catalyst 2948G-L3s and CatOS Based Switches 01-Oct-2014
• Configuration example to migrate Spanning Tree from PVST+ to MST 26-Sep-2014
• Spanning Tree from PVST+ to Rapid-PVST Migration Configuration Example 26-Sep-2014
• Configuring VLAN Trunk Protocol (VTP) 24-Sep-2014
• Creating Ethernet VLANs on Catalyst Switches 02-May-2014
• Using PortFast and Other Commands to Fix Workstation Startup Connectivity Delays 19-Dec-2008
• EtherChannel Between Catalyst 3550/3560/3750 Series Switches and Catalyst Switches Running Cisco IOS System Software Configuration Example 25-Sep-2008
• Configuring EtherChannel Between a Catalyst Switch Running CatOS and a Workstation or Server 12-Jul-2007
• Migrate a Transparent VTP Domain to Server-Client VTP Domain 02-Feb-2007
• Spanning Tree from PVST+ to Rapid-PVST Migration Configuration Example 12-Jan-2007
• Configure to Migrate Spanning Tree from PVST+ to MST 13-Dec-2006
• Configure IOS Catalyst Switches to Connect Cisco IP Phones Configuration Example 30-Aug-2006
• Configuring EtherChannel and 802.1Q Trunking with Catalyst 2948G-L3s and CatOS Based Switches 30-Aug-2005

Configuration Guides

• Catalyst 4900 and 4500 switches share configuration information. Refer to the documentation at the locations below:

  • Catalyst 4500 Series Switch Software Configuration Guide, IOS XE 3.8.0E and IOS 15.2(4)E 25-Apr-2016
  • Catalyst 4500 Series Switch Software Configuration Guide, IOS XE 3.7.xE and IOS 15.2(3)Ex 14-Jan-2016
  • Catalyst 4500 Series Switch Software Configuration Guide, IOS XE 3.6.xE and IOS 15.2(2)Ex 31-Aug-2015
  • Catalyst 4500 Series Switch Software Configuration Guide, Release IOS XE 3.5.0E and IOS 15.2(1)E 10-May-2015
  • Catalyst 4500 Series Switch Software Configuration Guide, Release IOS XE 3.4.xSG and IOS 15.1(2)SGx 05-Dec-2012
  • Catalyst 4500 Series Switch Cisco IOS Software Configuration Guide, IOS XE 3.3.0SG (15.1(1)SG) 17-Apr-2012
  • Catalyst 4500 Series Switch Cisco IOS Software Configuration Guide, 15.0(2)SG 08-Apr-2011
  • Catalyst 4500 Series Switch Cisco IOS Software Configuration Guide, 12.2(54)SG 06-May-2010
  • Catalyst 4500 Series Switch Cisco IOS Software Configuration Guide, 12.2(53)SG 27-Jul-2009
  • Catalyst 4500 Series Switch Cisco IOS Software Configuration Guide, 12.2(52)SG 20-May-2009
  • Catalyst 4500 Series Switch Cisco IOS Software Configuration Guide, 12.2(50)SG 03-Apr-2006
  • Catalyst 4500 Series Switch Cisco IOS Software Configuration Guide, 12.2(46)SG
  • Catalyst 4500 Series Switch Cisco IOS Software Configuration Guide, 12.2(44)SG 19-Dec-2011
  • Catalyst 4500 Series Switch Cisco IOS Software Configuration Guide, 12.2(40)SG 03-Apr-2006
  • Catalyst 4500 Series Switch Cisco IOS Software Configuration Guide, 12.2(37)SG
  • Catalyst 4500 Series Switch Cisco IOS Software Configuration Guide, 12.2(31)SG 04-May-2007
  • Catalyst 4500 Series Switch Cisco IOS Software Configuration Guide, 12.2(31)SGA 15-Oct-2013
  • Catalyst 4500 Series Switch Cisco IOS Software Configuration Guide, 12.2(25)EWA 04-May-2007
  • Catalyst 4500 Series Switch Cisco IOS Software Configuration Guide, 12.2(25)SG 04-May-2007

Maintain and Operate

Maintain and Operate TechNotes

• Cisco Small Form-Factor Pluggable (SFP) Transceiver Modules Maintenance and Troubleshooting 23-Sep-2014 (PDF - 345 KB)

Troubleshooting

Error and System Messages

• Catalyst 4900 and 4500 Series Switches share system message information. Refer to the documentation at the locations below:

  • Catalyst 4500 Series Switch Cisco IOS System Message Guide, Cisco IOS Release 12.2(52)SG 20-May-2009
  • Catalyst 4500 Series Switch Cisco IOS System Message Guide, 12.2(50)SG 07-Jan-2009
  • Catalyst 4500 Series Switch Cisco IOS System Message Guide, 12.2(46)SG 03-Jul-2008
  • Catalyst 4500 Series Switch Cisco IOS System Message Guide, 12.2(44)SG 27-Mar-2008
  • Catalyst 4500 Series Switch Cisco IOS System Message Guide, 12.2(40)SG 15-Nov-2007
  • Catalyst 4500 Series Switch Cisco IOS System Message Guide, 12.2(37)SG 14-Sep-2007
  • Catalyst 4500 Series Switch Cisco IOS System Message Guide, 12.2(31)SG 04-May-2007
  • Catalyst 4500 Series Switch Cisco IOS System Message Guide, 12.2(31)SGA 04-May-2007
  • Catalyst 4500 Series Switch Cisco IOS System Message Guide, 12.2(25)SG 04-May-2007

Password Recovery

• Cisco Catalyst 4948 Switch

  • Recover Passwords for Catalyst 4500/4900 Switches with Supervisor Engine 19-Sep-2022

Troubleshooting TechNotes

• Recover Errdisable Port State on Cisco IOS Platforms 16-Jun-2022
• Understanding and Troubleshooting HSRP Problems in Catalyst Switch Networks 21-Aug-2019
• Understand Catalyst 2900 and Catalyst 4000 Naming Conventions 25-Feb-2019
• Connecting a Modem to the Console Port on Catalyst Switches 12-Feb-2019
• STP Problems and Related Design Considerations 05-Dec-2017
• Understand and Configure Backbone Fast on Catalyst Switches 19-Apr-2016
• Understanding VLAN Trunk Protocol (VTP) 29-Sep-2014
• Configuring VLAN Trunk Protocol (VTP) 24-Sep-2014
• Cisco Small Form-Factor Pluggable (SFP) Transceiver Modules Maintenance and Troubleshooting 23-Sep-2014 (PDF - 345 KB)
• Troubleshooting Cisco Catalyst Switches to NIC Compatibility Issues 19-Sep-2014 (PDF - 183 KB)
• WCCP negotiation fails with error: WCCP debug message: Here_I_Am packet from x.x.x.x w/bad fwd method 00000001, was offered 00000002 12-Aug-2014
• Troubleshoot Catalyst Switches to NIC Compatibility Issues 27-Oct-2009
• Managing Software Images and Working with Configuration Files on Catalyst Switches 15-Oct-2009
• Troubleshoot Hardware for Catalyst 4000 Series Switches 30-Sep-2009
• Understanding and Configuring the Cisco UplinkFast Feature 18-Aug-2008

Literature

Case Studies

• Microsoft Word - Cisco _ Customer _ Case _ Study _ PA Office of AG _ FORMATTED _ 27Jan10 . doc 17-Apr-2014 (PDF - 173 KB)

White Papers

• Latency Busters Messaging 3.3.9 with Cisco Catalyst 4900M 29-May-2009 (PDF - 1 MB)