Release Notes for the Cisco ME 3400 Ethernet Access Switch, Cisco IOS Release 12.2(44)SE January 11, 2008 Cisco IOS Release 12.2(44)SE runs on the Cisco ME 3400 Series Ethernet Access switches. These release notes include important information about Cisco IOS Release 12.2(44)SE and any limitations, restrictions, and caveats that apply to the release.
Hardware Supported • “New Features” section on page 5 • “Minimum Cisco IOS Release for Major Features” section on page 6 • “Limitations and Restrictions” section on page 8 • “Open Caveats” section on page 13 • “Resolved Caveats” section on page 15 • “Documentation Updates” section on page 18 • “Related Documentation” section on page 25 • “Obtaining Documentation, Obtaining Support, and Security Guidelines” section on page 25 Hardware Supported Table 1 lists the hardware supported on Cisco I
Upgrading the Switch Software Finding the Software Version and Feature Set The Cisco IOS image is stored as a bin file in a directory that is named with the Cisco IOS release. The image is stored on the system board flash device (flash:). You can use the show version privileged EXEC command to see the software version that is running on your switch. The second line of the display shows the version.
Upgrading the Switch Software You can copy the bin software image file on the flash memory to the appropriate TFTP directory on a host by using the copy flash: tftp: privileged EXEC command. You can also configure the switch as a TFTP server to copy files from one switch to another without using an external TFTP server by using the tftp-server global configuration command.
Installation Notes For more information about assigning an IP address and default gateway to the switch, refer to the software configuration guide for this release. Step 6 Download the image file from the TFTP server to the switch. If you are installing the same version of software that is currently on the switch, overwrite the current image by entering this privileged EXEC command: Switch# archive download-sw /overwrite /reload tftp:[[//location]/directory]/image-name.
Minimum Cisco IOS Release for Major Features New Hardware Features For a list of all supported hardware, see the “Hardware Supported” section on page 2. New Software Features These are the new software features for Cisco IOS Release 12.
Minimum Cisco IOS Release for Major Features Table 3 Features Introduced After the First Release and the Minimum Cisco IOS Release Required (continued) Feature Minimum Cisco IOS Release Required Configurable control plane security (support for ENIs) 12.2(44)SE Configuration rollback and replacement 12.2(40)SE EEM (metro IP access image only) 12.2(40)SE Note EEM support was added to the metro IP access image in 12.2(44)SE IGMP Helper (metro IP access image only) 12.
Limitations and Restrictions 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.
Limitations and Restrictions The workaround is to reconfigure the static IP address. (CSCea71176 and CSCdz11708) • The DHCP snooping binding database is not written to flash memory or a remote file in any of these situations: – When the Network Time Protocol (NTP) is configured, but the NTP clock is not synchronized. You can check the clock status by entering the show NTP status privileged EXEC command and verifying that the network connection to the NTP server and the peer work correctly.
Limitations and Restrictions IP These are the IP limitations: • Subnetwork Access Protocol (SNAP) encapsulated IP packets are dropped without an error message being reported at the interface. The switch does not support SNAP-encapsulated IP packets. There is no workaround. (CSCdz89142) • The switch does not create an adjacent table entry when the ARP timeout value is 15 seconds and the ARP request times out. The workaround is to not set an ARP timeout value lower than 120 seconds.
Limitations and Restrictions • If an IGMP report packet has two multicast group records, the switch removes or adds interfaces depending on the order of the records in the packet: – If the ALLOW_NEW_SOURCE record is before the BLOCK_OLD_SOURCE record, the switch removes the port from the group. – If the BLOCK_OLD_SOURCE record is before the ALLOW_NEW_SOURCE record, the switch adds the port to the group. There is no workaround.
Limitations and Restrictions • Although visible in the command-line help, the conform-action color policy-map class police configuration command is not supported. Entering the command has no affect. There is no workaround. (CSCsk00594) SPAN and RSPAN These are the SPAN and Remote SPAN (RSPAN) limitations. • The egress SPAN data rate might degrade when multicast routing is enabled. The amount of degradation depends on the processor loading.
Open Caveats VLAN These are the VLAN limitations: • If the number of VLANs times the number of trunk ports exceeds the recommended limit of 13,000, the switch can fail. The workaround is to not configure more than the recommended number of VLANs and trunks. (CSCeb31087) • A CPUHOG message sometimes appears when you configure a private VLAN. Enable port security on one or more of the ports affected by the private VLAN configuration. There is no workaround.
Open Caveats • CSCsk53850 If you enter the no ip vrf vrf-name global configuration command to delete a VPN routing/forwarding instance on the switch when routing is not enabled on the switch, the VRF instance is held in the delete queue. The VRF entry does not appear in the output when you enter the show running-config privileged EXEC command, but it is shown when you enter the show ip vrf privileged EXEC command.
Resolved Caveats Resolved Caveats These caveats have been resolved in this release: • CSCsd01180 The switch no longer reloads when you use a Kron command scheduler routine to automatically copy configuration data using the Secure Copy Protocol (SCP). (Kron is a Cisco IOS utility for scheduling non-prompting CLI commands to execute at a later time.
Resolved Caveats • CSCsi78737 The cpmCPURisingThreshold traps on the switch are no longer missing the cpmProcExtUtil5SecRev and cpmProcessTimeCreated trap components. Note that although the components were missing from the traps, the PROCESS MIB was still populating the objects. • CSCsi79504 OSPF hello packets now have the correct CoS value of 7. • CSCsi85257 A Cisco IP Phone now works correctly when it is connected to a port that is configured with CDP bypass and multidomain authentication (MDA).
Resolved Caveats • CSCsk61854 When two metro Ethernet switches are indirectly connected and the link status of two interfaces that have Resilient Ethernet Protocol (REP) enabled goes down, when one of the links recovers, the port status now correctly changes to open, and traffic resumes through the ring topology. • CSCsk62010 A switch no longer fails when you enter the show interfaces vlan vlan-id switchport privileged EXEC command.
Documentation Updates Documentation Updates This section contains these documentation updates: • “Updates to the Software Configuration Guide” section on page 18 • “Updates to the Command Reference” section on page 19 • “Updates to the System Message Guide” section on page 20 • “Update to the Regulatory Compliance and Safety Information” section on page 22 • “Updates to the Hardware Installation Guide” section on page 23 Updates to the Software Configuration Guide These are the updates to the sof
Documentation Updates Updates to the Command Reference These are updates to the command reference: • Although visible in the command-line help, the conform-action color policy-map class police configuration command is not supported. Entering the command has no affect. • The usage guidelines for the set and unset bootloader commands in the command reference are incorrect.
Documentation Updates Updates to the System Message Guide These sections include messages that have been added to or changed in the system message guide. New System Messages These new messages have been added to the system message guide: Error Message DOT1X_SWITCH-5-ERR_ADDING_ADDRESS: Unable to add address [enet] on [chars] Explanation The client MAC address could not be added to the MAC address table because the hardware memory is full or the address is a secure address on another port.
Documentation Updates Error Message PLATFORM_UCAST-6-PREFIX: One or more, more specific prefixes could not be programmed into TCAM and are being covered by a less specific prefix Explanation A more specific prefix could not be programmed into Ternary Content Addressable Memory (TCAM) and is covered by a less specific prefix. This could be a temporary condition. The output of the show platform ip unicast failed route privileged EXEC command lists the failed prefixes.
Documentation Updates Update to the Regulatory Compliance and Safety Information The Regulatory Compliance Standards section of the Regulatory Compliance and Safety Information for the Cisco ME 3400 and Cisco ME 2400 Ethernet Access Switches includes this new section: Cautions and Regulatory Compliance Statements for NEBS This section includes the cautions and regulatory compliance statements for the Network Equipment-Building System (NEBS) certification from the Telcordia Electromagnetic Compatibility an
Documentation Updates Table 4 NEBS Compliance Statements (continued) The grounding architecture of this product is DC-isolated (DC-I). DC-powered products have a nominal operating DC voltage of 48 VDC. Minimal steady state DC operating voltage is 40 VDC. Reference American National Standards Institute (ANSI) T1.315, Table 1.
Documentation Updates Figure 1 Connecting Separate Feeds to Each of the DC Power Terminal Blocks SYSTEM + A INPUT -3 B CURRE 6 – -72 V NT 2 – 1A 1 1 + PS 1 PS 2 + A INPUT -3 B CURRE 6 – -72 V NT 2 – 1A CONSO 2 Primary power feed LE 191863 + 2 Secondary (redundant) power feed If you want an alert if an external power supply fails, do not connect feeds to one terminal block and from there connect feeds to the second terminal block. (See the example in Figure 2.
Related Documentation Related Documentation These documents provide complete information about the switch and are available from this Cisco.com site: http://www.cisco.com/en/US/products/ps6580/tsd_products_support_series_home.
Obtaining Documentation, Obtaining Support, and Security Guidelines This document is to be used in conjunction with the documents listed in the “Related Documentation” section. CCVP, the Cisco logo, and Welcome to the Human Network are trademarks of Cisco Systems, Inc.; Changing the Way We Work, Live, Play, and Learn is a service mark of Cisco Systems, Inc.
