Cisco Catalyst Express 520-24LC Instruction Manual

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Release Notes for the Catalyst Express 520
Switches, Cisco IOS Release 12.2(37)EX and
Later
September 27, 2007
Cisco IOS Release 12.2(37)EX runs on all Catalyst Express 520 switches.
These release notes include important information about this Cisco IOS release and any limitations,
restrictions, and caveats that apply to it. Verify that these release notes are correct for your switch. To
find the release number of the Cisco IOS image running on your switch:
•On a new or unconfigured switch, see the Cisco IOS release label on the rear panel of your switch.
•On a configured switch, see the Switch Information area on the device manager Dashboard window.
The key features are described in the User Guide for the Catalyst Express 520 Switches. For the complete
list of Catalyst Express 520 switch documentation, see the “Switch Documentation Set” section on
page 5.
Contents
This information is in the release notes:
•“System Requirements” section on page 2
•“Upgrading the Switch Software” section on page 3
•“Limitations and Restrictions” section on page 3
•“Important Notes” section on page 4
•“Open Caveats” section on page 4
•“Update to the Catalyst Express 520 User Guide” section on page 5
•“Switch Documentation Set” section on page 5
•“Obtaining Documentation, Obtaining Support, and Security Guidelines” section on page 5

2
Release Notes for the Catalyst Express 520 Switches, Cisco IOS Release 12.2(37)EX and Later
OL-14615-01
System Requirements
System Requirements
The system requirements are described in these sections:
•“Hardware Supported” section on page 2
•“Device Manager System Requirements” section on page 2
Hardware Supported
Table 1 lists the supported hardware.
Device Manager System Requirements
The device manager hardware and software requirements are described in the User Guide for the
Catalyst Express 520 Switches.
Table 1 Supported Hardware
Switch Description Supported by Minimum Cisco IOS Release
Catalyst Express 520-8PC-K9 8 10/100 PoE1ports
1 dual-purpose port2
1. PoE = Power over Ethernet.
2. Dual-purpose port = one 10/100/1000BASE-T copper port and one small form-factor pluggable [SFP] module slot.
Cisco IOS Release 12.2(35)EX
Catalyst Express 520-24LC-K9 20 10/100 Ethernet ports
4 10/100 PoE ports
2 dual-purpose ports
Cisco IOS Release 12.2(37)EX
Catalyst Express 520-24PC-K9 24 10/100 PoE ports
2 dual-purpose ports
Cisco IOS Release 12.2(37)EX
Catalyst Express 520-24TT-K9 24 10/100 Ethernet ports
2 10/100/1000 Ethernet ports
Cisco IOS Release 12.2(37)EX
Catalyst Express 520G-24TC 24 10/100/1000 Ethernet ports
2 dual-purpose ports
Cisco IOS Release 12.2(37)EX
SFP3modules
3. SFP = small form-factor pluggable.
100BASE-BX-10D, -BX-10U, -FX-FE,
-FX-GE, -LX,
1000BASE-LX/LH, -SX, -T
Cisco IOS Release 12.2(35)EX
Redundant power systems Cisco RPS 675 Redundant Power System
Cisco Redundant Power System 2300
Cisco IOS Release 12.2(35)EX
Cisco IOS Release 12.2(37)EX

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Release Notes for the Catalyst Express 520 Switches, Cisco IOS Release 12.2(37)EX and Later
OL-14615-01
Upgrading the Switch Software
Upgrading the Switch Software
The software upgrade procedure is described in the Cisco Configuration Assistant online help. To
upgrade the switch, you must download and use Cisco Configuration Assistant.
Limitations and Restrictions
You should review this section before you begin working with the switch. These are known limitations
that will not be fixed, and there is not always a workaround. Some features might not work as
documented, and some features could be affected by recent changes to the switch hardware or software.
These are the device manager limitations:
•CSCei30778
When a PC is connected directly to a switch port, the username password dialog appears twice
before the device manager appears.
The workaround is to enter the username and the password in both dialogs.
•CSCsd48669
The PC must have a network interface card (NIC) driver that supports IEEE 802.1Q packet tagging
if either:
– The PC is directly connected to a Catalyst Express 520 switch port that is configured with the Switch
port role
– The PC is connected to a switch that is connected through an access port to a Catalyst
Express 520 switch port that is configured with the Switch port role.
•CSCsh93742
You cannot configure the copper interface of the dual-purpose port if an SFP module is installed in
it.
The workaround is to first remove the SFP module and then to connect the copper cable.
•CSCsi40050
You cannot set up the switch for the first time if the switch is connected to an upstream DHCP server
and to your management station at the same time. (You can set up the switch by using a PC
connected to one of the switch Ethernet ports or by connecting the switch to a DHCP server, but not
both.)
The workaround is to disconnect the switch from the uplink DHCP server, connect a PC to one of
the switch Ethernet ports, and configure the switch by using the Express Setup program.
•CSCsi70143
A port fails under these conditions:
– The port speed is configured at either 10Mb/s or 100Mb/s (instead of auto), and it is connected
to another port that also has the speed configured as 10Mb/s or 100Mb/s.
– The ports are connected by a straight-through cable.
The workaround is to use a crossover cable to connect the two ports, regardless of the speed settings.

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Release Notes for the Catalyst Express 520 Switches, Cisco IOS Release 12.2(37)EX and Later
OL-14615-01
Important Notes
•CSCsj52489
When you start the device manager from a Firefox browser session, an invalid certificate error
appears.
The workaround is to delete the certificate(s) in Firefox and then close and restart the browser.
Follow these steps to delete the certificate(s):
– In Firefox version 1.5, select Tools > Options > Advanced > Security > View Certificates >
Web Sites. Select the certificate(s), and click Delete to delete the certificate(s).
– In Firefox version 2.0, select Tools > Options > Advanced > Encryption > View
Certificates > Web Sites. Select the certificate(s), and click Delete to delete the certificate(s).
When you start the device manager from Internet Explorer 7.0, a certificate error page appears.
The workaround is to click the Continue to this website (not recommended) link and continue to start
the device manager.
Important Notes
When you start the device manager in secured mode from Internet Explorer 6.0 or from FireFox1.5,
several security certificates appear. Accept all of the certificates. The device manager then appears.
For a complete list of supported browsers and operating systems, see the User Guide for the Catalyst
Express 520 Switches.
Open Caveats
This section describes the open caveats with possible unexpected activity in this software release. Unless
otherwise noted, these severity 3 Cisco IOS configuration caveats apply to all of the Catalyst Express
switches:
•CSCsj60518 (Catalyst 520-24LC, 520-24PC, and 520-24TT switches)
The port configuration is lost if you press the Admin button repeatedly when the switch is entering
and exiting direct managed mode.
The workaround is to not repeatedly press the Admin button when entering and exiting direct
managed mode. Wait at least five seconds before each press of the Admin button.
•CSCsj77293
You might not be able to complete the switch initial setup if you interrupt the process by either
disconnecting your PC from the switch or by changing your PC IP address settings.
The workaround is to restart the entire initial setup procedure, as described in the switch user guide.
•CSCsk22971
If you end your browser session without saving changes to the setup parameters during initial setup
or in direct managed mode, and then open a new browser session, the Express Setup window or the
device manager page might not appear in the new browser session.
The workaround is to type in any URL (for example, www.cisco.com). The browser then displays
the Express Setup window or the device manager.

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Release Notes for the Catalyst Express 520 Switches, Cisco IOS Release 12.2(37)EX and Later
OL-14615-01
Update to the Catalyst Express 520 User Guide
Update to the Catalyst Express 520 User Guide
The Catalyst Express 520-24PC-K9 switch supports the RPS 675 and RPS 2300 redundant power
systems.
Switch Documentation Set
These documents provide complete information about the switch and are available from this Cisco.com
site:
http://www.cisco.com/en/US/products/ps7238/tsd_products_support_series_home.html
These documents are also available on the Cisco Smart Business Communications System Software and
Documentation CD-ROM that ships with the switch.
You can order printed copies of documents with a DOC-xxxxxx= number from the Cisco.com sites and
from the telephone numbers listed in the URL referenced in the “Obtaining Documentation, Obtaining
Support, and Security Guidelines” section on page 5.
•Release Notes for the Catalyst Express 520 Switches (not orderable but available on Cisco.com)
•Getting Started Guide for the Catalyst Express 520 Switches (order number DOC-7818063=)
•User Guide for the Catalyst Express 520 Switches (not orderable but available on Cisco.com)
•Device manager online help (available on the switch)
•Regulatory Compliance and Safety Information for the Catalyst Express 520 Switches (not orderable
but available on Cisco.com)
•Cisco Limited Lifetime Hardware Warranty Terms for the Catalyst Express 520 Switches (not
orderable but available on Cisco.com)
For other information about related products, see these documents:
•Getting Started with Cisco Network Assistant (not orderable but available on Cisco.com)
•Release Notes for Cisco Network Assistant (not orderable but available on Cisco.com)
•Cisco Small Form-Factor Pluggable Modules Installation Notes (not orderable but available on
Cisco.com)
•Cisco RPS 675 Redundant Power System Hardware Installation Guide (order number
DOC-7815201=)
•Cisco Redundant Power System 2300 Hardware Installation Guide (order number DOC-7817647=)
Obtaining Documentation, Obtaining Support, and Security
Guidelines
For information on obtaining documentation, obtaining support, providing documentation feedback,
security guidelines, and also recommended aliases and general Cisco documents, see the monthly
What’s New in Cisco Product Documentation, which also lists all new and revised Cisco technical
documentation, at:
http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html

6
Release Notes for the Catalyst Express 520 Switches, Cisco IOS Release 12.2(37)EX and Later
OL-14615-01
Obtaining Documentation, Obtaining Support, and Security Guidelines
This document is to be used in conjunction with the documents listed in the “These documents provide complete information about the switch and
are available from this Cisco.com site:” section.
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© 2007 Cisco Systems, Inc. All rights reserved.