Release Notes for Cisco ME 2600X Series
Ethernet Access Switch, Cisco IOS Release
15.2(2)SA2
These release notes include important information about the Cisco IOS Release 15.2(2)SA2 that runs on the
Cisco ME 2600X series ethernet access switches. Use this document in conjunction with the previous Release
Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(2)SA.
These release notes also include the limitations, restrictions, and caveats that apply to these releases.
You can verify that these release notes apply to your switch as follows:
• If you are installing a new switch, see the Cisco IOS release label on the rear panel of your switch.
• If your switch is on, use the show version privileged EXEC command. See the Determining the Software
Version section.
For the complete list of Cisco ME 2600X switch documentation, see the Related Documentation section.
You can download the switch software from this site (registered Cisco.com users with a login password):
http://www.cisco.com/cisco/software/navigator.html?a=ahttp://www.cisco.com/cisco/web/download/
index.htmli=rpm
• New and Changed Information, page 2
• Determining the Software Version, page 2
• Upgrading to a New Software Release, page 2
• Downloading The Software Image File, page 3
• Limitations and Restrictions, page 3
• Using the Bug Toolkit, page 4
• Caveat List for Cisco IOS Release 15.2(2)SA, page 7
• Related Documentation, page 10
• Obtaining Documentation and Submitting a Service Request, page 10
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Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(2)SA2
New and Changed Information
New and Changed Information
The following sections list new features:
New Hardware Features in Release 15.2(2)SA2
There are no new hardware features in this release.
New Software Features in Release 15.2(2)SA2
IP Version 6 Support for the Management Port
IP version 6 (IPv6) increases the number of network address bits from 32 bits (in IPv4) to 128 bits. IPv6 is
based on IPv4 but it includes a much larger address space and other improvements such as a simplified main
header and extension headers. The larger IPv6 address space allows networks to scale and provide global
reachability.
For more information about IPv6 support for the management port, see the Cisco ME 2600X Series Ethernet
Access Switch Software Configuration Guide, Release 15.2(02)SA2.
SSH
Secure Shell (SSH) is an application; a protocol that provides secure replacement for the suite of Berkeley
r-tools such as rsh, rlogin and rcp (Cisco IOS supports the rlogin tool.) The protocol secures the sessions using
standard cryptographic mechanisms. The application can be used in the same way as the Berkeley rexec and
rsh tools.
For more information about SSH, see the Cisco ME 2600X Series Ethernet Access Switch Software
Configuration Guide, Release 15.2(02)SA2.
Determining the Software Version
To determine the version of Cisco IOS software that is running on your Cisco router, log in to the router and
enter the show version EXEC command:
Router# show version
Cisco IOS Software, ME2600X Software (ME-UNIVERSALK9-M), Version 15.2(2)SA,
RELEASE SOFTWARE (fc5)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2013 by Cisco Systems, Inc.
Upgrading to a New Software Release
For information about choosing a new Cisco IOS software release, see How to Choose a Cisco IOS Software
Release at this URL:
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Downloading The Software Image File
http://www.cisco.com/en/US/products/sw/iosswrel/ps1834/products_tech_note09186a00800fb9d9.shtml
For information about upgrading the Cisco ME 2600X series ethernet access switches, see the document at
this URL:
http://cisco.com/en/US/docs/switches/metro/me2600x/config/guide/b_ME2600X_config_guide_BookMap.html
Note
The following warning message that displays when upgrading the Cisco ME 2600X IOS image using the
copy tftp: sdflash command can be ignored without any impact:
%Warning: File not a valid executable for this system Abort Copy?
[confirm]
Use Cisco Feature Navigator to find information about platform support and software image support. Cisco
Feature Navigator enables you to determine which Cisco IOS and Catalyst OS software images support a
specific software release, feature set, or platform. To access Cisco Feature Navigator, go to http://
www.cisco.com/go/cfn. An account on Cisco.com is not required.
To choose a new Cisco IOS software release based on information about defects that affect that software, use
the Bug Toolkit at this URL:
http://www.cisco.com/pcgi-bin/Support/Bugtool/launch_bugtool.pl
Downloading The Software Image File
To download the software image file for your device, complete these steps:
Procedure
Step 1
If you are a registered customer, go to this URL and log in.
http://www.cisco.com/cisco/software/navigator.html?a=a&i=rpm
Step 2
Step 3
Step 4
Navigate to Switches > Service Provider Switches - Ethernet Access.
Navigate to your switch model.
Click IOS Software, and select me2600x-universalk9-mz.152-2.SA.fc5.
Step 5
To download the selected software image, click Download.
Limitations and Restrictions
For limitations and restrictions applicable to a particular feature supported on Cisco ME 2600X, see the Cisco
ME 2600X Series Ethernet Access Switch Software Configuration Guide, Release 15.2(02)SA at http://cisco.com/
en/US/products/ps12951/tsd_products_support_series_home.html
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Using the Bug Toolkit
Using the Bug Toolkit
This chapter describes how you can use the bug toolkit to search for bugs in a Cisco IOS release.
Searching Bugs
This section explains how to use the Bug ToolKit to search for a specific bug.
Procedure
Step 1
Go to https://tools.cisco.com/Support/BugToolKit.
You are prompted to log into Cisco.com. After successful login, the Bug Toolkit page opens.
Step 2
Click Launch Bug Toolkit.
To search for bugs in a specific release, enter the following search criteria:
Step 3
To search for a specific bug, enter the bug ID in the Search for Bug ID field and click Go in the Search Bugs
tab.
To search for bugs in a specific release, enter the following search criteria:
• Select Product Category—Select Switches.
• Select Products—Select the required product from the list. For example, to view bugs for Cisco ME
2600X Series Ethernet Access Switch, choose Cisco ME 2600X Series Ethernet Access Switch from
the list.
• Software Version—Choose the required Cisco IOS version from the drop-down lists. For example, to
view the list of outstanding and resolved bugs in Cisco IOS Release 15.2(02)SA, choose 15.2 from the
first drop-down list, 02 from the second drop-down list, and SA from the third drop-down list.
• Search for Keyword(s)—Use separate search phrases with boolean expressions (AND, NOT, OR) to
search within the bug title and details.
• Advanced Options—You can either perform a search using the default search criteria or define custom
criteria for an advanced search. To customize the advanced search, select Use custom settings for
severity, status, and others and provide the following information:
◦Severity—Select the severity level.
◦Status—Select Open, Fixed, or Terminated.
Select Open to view all the open bugs. To filter the open bugs, clear the Open check box and
select the appropriate sub-options that appear below the Open check box. The sub-options are
New, Held, More, Open, Waiting, Assigned, Forwarded, Postponed, Submitted, and
Information Required. For example, if you want to view only new bugs in Cisco IOS Release
15.2(02)SA, select New.
Select Fixed to view fixed bugs. To filter fixed bugs, clear the Fixed check box and select the
appropriate sub-options that appear below the Fixed check box. The sub-options are Resolved or
Verified.
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Saving Bugs
Select Terminated to view terminated bugs. To filter terminated bugs, clear the Terminated check
box and select the appropriate sub-options that appear below the Terminated check box. The
sub-options are Closed, Junked, and Unreproducible. Select multiple options as required.
◦Advanced—Select the Show only bugs containing bug details check box to view only those bugs
that contain detailed information, such as symptoms and workarounds.
◦Modified Date—Select this option if you want to filter bugs based on the date on which the bugs
were last modified.
◦Results Displayed Per Page—Select the appropriate option from the list to restrict the number of
results that appear per page.
Step 4
Click Search. The Bug Toolkit displays the list of bugs based on the specified search criteria.
Saving Bugs
Procedure
Step 1
Step 2
Perform a search.
Select the check boxes next to the bug you want to save in the Search Results page and click Save Checked.
The Save Bug Settings area appears under the Search Bugs tab.
Step 3
Specify group settings in the Place in Group field:
• Existing Group—Select an existing group.
• Create New Group—Enter a new group name.
Repeat Step 1 through Step 3 in the "Searching Bugs" section.
Existing groups have their group notification options already set. If you selected an existing group, go to Step
5.
Step 4
Specify the following email update (group notification) options.
• No email updates
• Yes, email updates to—Enter your email address.
◦On a schedule—Specify the frequency of email delivery.
Step 5
Click Save Bug.
The Bug ToolKit saves the selected bugs in the specified group.
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Saving Search
Saving Search
This section explains how to use the Bug ToolKit to save your search after searching for the bugs in a specific
release.
Procedure
Step 1
Perform a search.
Repeat Step 1 through Step 3 in the "Search Bugs" section.
Step 2
Click Save Search in the Search Results page to save your search with the specified criteria.
The Save Search Settings area appears under the My Notifications tab.
Step 3
Enter a name for your search in the Search Name field.
Step 4
Specify group settings in the Place in Group field.
• Existing Group—Select an existing group.
• Create New Group—Enter a new group name.
Existing groups have their group notification options already set. If you select an existing group, go to Step
6.
Step 5
Specify the following email update (group notification) options.
• No emailed updates
• Yes, email updates to—Enter your email address.
◦On a schedule—Specify the frequency of email delivery.
Step 6
Click Save Search.
The Bug ToolKit saves your search in the specified group.
Retrieving Saved Search or Bugs
This section explains how to use the Bug ToolKit to retrieve a saved search or bugs.
Procedure
Step 1
Go to https://tools.cisco.com/Support/BugToolKit and click Launch Bug Toolkit.
You are prompted to log into Cisco.com.
Step 2
Click My Notifications tab.
The My Notifications tab displays the Group Name, Summary, and Actions.
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Exporting Bugs to Spreadsheet
Step 3
Click the group in the Group Name column. The group contains saved search and bugs.
Step 4
Retrieve saved search or bugs.
• Click the saved search name to display the Search Results page.
• Click the saved bug to display details or move your mouse pointer over the Info link.
The My Notifications tab also provides option to delete a bug, delete search, delete group, edit group
notifications (in the Actions column), move selected saved search or bugs to different group, and to export
saved bugs in all the groups to a spreadsheet.
Exporting Bugs to Spreadsheet
The Bug ToolKit provides the following options to export bugs to a spreadsheet:
• Click the Export All to Spreadsheet link in the Search Results page under the Search Bugs tab. Specify
file name and folder name to save the spreadsheet. All the bugs retrieved by the search is exported.
• Click the Export All to Spreadsheet link in the My Notifications tab. Specify file name and folder
name to save the spreadsheet. All the saved bugs in all the groups is exported.
If you are unable to export the spreadsheet, log into the Technical Support Website at http://www.cisco.com/
cisco/web/support/index.html for more information or call Cisco TAC (1-800-553-2447).
Caveat List for Cisco IOS Release 15.2(2)SA
This chapter describes the open severity 1 and 2 caveats, and select severity 3 caveats:
The "Open Caveats" sections list open caveats that apply to the current release and may apply to previous
releases. A caveat that is open for an earlier release and is still unresolved, applies to all future releases until
it is resolved.
The bug IDs are sorted alphanumerically.
Note
The Caveats section includes the bug ID and a short description of the bug. For details on the symptoms,
conditions, and workaround for a specific caveat you must use the Bug ToolKit. For more details, see
Using the Bug Toolkit.
Open Caveats—Cisco IOS Release 15.2(2)SA2
Bug ID
Description
CSCum11578
show rep topology command limits hostname to first
16 characters.
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Resolved Caveats—Cisco IOS Release 15.2(2)SA
Bug ID
Description
CSCuc00376
Ethernet Virtual Circuit (EVC) Access Control List
(ACL) counters are not updated in the show ethernet
service instance detail command output.
CSCuc99941
When using the device at 10 Mbps, after reload, one
out of the eight link aggregation members sometimes
goes to a passive state.
CSCuh98244
The round trip time (RTT) for some intermittent
packets is more than 300 milliseconds when pinging
the device.
Resolved Caveats—Cisco IOS Release 15.2(2)SA
Bug ID
Description
CSCub65391
When VLAN Load balancing configuration is applied and removed, the provider
edge (PE) port remains alternate (ALT) with the neighbor port flag set as preferred.
At this point, the port with the preferred flag is expected to go into the ALT state;
however the access point (AP) election leads to the PE port being elected as the
blocked port.
CSCub76755
When either link aggregation control protocol (LACP) is fast-switchover configured
or when port and system priority are changed, the convergence time is high
(approximately two seconds).
CSCub77186
When the convergence time with copper optics varies between 400 ms to 700 ms,
the switching time is high on link flaps for copper interface with fast hellos enabled.
CSCub77294
When a resilient ethernet protocol (REP) configuration is removed from the PE
port, more than one alternate port appear on the REP edge no-neighbor segment.
CSCub91657
High switching time (10 seconds to 14 seconds) in Edge-NN segment with 10K
media access control (MAC) entries.
CSCub96737
When the write memory operation with scaled ethernet flow points reaches 3000
EFPs or more, CPU utilization is high.
CSCuc29856
When a static IP source address is removed and then DHCP client IP address is
renewed, the IP source guard table shows a stale entry.
CSCuc33153
When MAC security is enabled, time displayed since the last violation is not
accurate.
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Resolved Caveats—Cisco IOS Release 15.2(2)SA
Bug ID
Description
CSCuc51564
When you enable IP source guard over an interface which has DHCP binding for
scaled number of clients, DHCP snooping binding table and IP source guard table
show duplicate entries.
CSCuc74632
When a port channel is untrusted and a physical interface to be added is trusted,
the physical interface is allowed to be added to the port channel.
CSCud04134
When scaled DHCP bindings are present on the system, reload on the switch may
cause the address resolution protocol (ARP) rate limiting to show a false error
disable status.
CSCud11745
The IP application control engine (ACE) is limited to 512 ACE. When you configure
more than 512 IP ACE, the node goes to CPUHOG state.
CSCud14111
When you manually delete a bridge-domain (BD) or bridge-domain interface (BDI)
and add them again without issuing the no ip dhcp snooping bridge-domain
command, binding does not occur.
CSCud34634
Dynamic MAC entries are blocked when clearing the MAC with a sticky MAC
address.
CSCud59128
When you configure an IP ACL with the values Not-equal to, Greater than , Less
than , Range , each filter is considered as 1 range value per ethernet flow point
(EFP). The maximum supported ACL configuration range check is 60.
CSCud61044
An user can log in successfully after being locked.
CSCud79145
When you enable MAC security and change the link status layer (LSL) timer below
default value, MAC security on user-network interface (UNI) port causes high CPU
utilization and LSL messages are lost.
CSCud79259
• Enabling MAC security on resilient ethernet protocol (REP) ports on the same
interface is not supported; it causes high switching time (around 30 seconds).
• Enabling MAC security and REP is not supported, when on the same interface:
◦EFP is configured under the bridge-domain and
◦MAC security (limit) is enabled on the bridge-domain
CSCud97739
IP source static entry with the DHCP database enabled is not supported and after
reload causes a loss of binding information.
CSCue29873
MAC security enabled ethernet flow point (EFP) does not limit the MAC add to
maximum count.
CSCue30384
When the traffic flows with a static MAC as the source MAC on a servive instance
level of an interface, the static MAC moves to another interface.
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Related Documentation
Bug ID
Description
CSCue35420
When configuring or reconfiguring 128 bit Internet Group Management Protocol
(IGMP) snooping, bridge-domain memory leaks.
CSCue79988
IPv6 is not supported on inbound ports.
Related Documentation
User documentation in HTML format includes the latest documentation updates and might be more current
than the complete book PDF available on Cisco.com.
These documents provide information about the switch and are available from this Cisco.com site:
http://cisco.com/en/US/products/ps12951/tsd_products_support_series_home.html
• Regulatory Compliance and Safety Information for the Cisco ME 2600X Series Ethernet Access Switch
• Cisco ME 2600X Series Ethernet Access Switch Hardware Installation Guide
• Cisco ME 2600X Series Ethernet Access Switch Software Configuration Guide, Release 15.2(02)SA
Obtaining Documentation and Submitting a Service Request
For information on obtaining documentation, submitting a service request, and gathering additional information,
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
Subscribe to the What's New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed
and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free
service and Cisco currently supports RSS version 2.0.
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