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Cisco ME 2600X Series Ethernet Access Switches

Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(2)SA2

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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

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:

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   Navigate to Switches > Service Provider Switches - Ethernet Access.
    Step 3   Navigate to your switch model.
    Step 4   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

    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. 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   Perform a search.
        Step 2   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.


        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.

            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.

            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.

            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.

            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.