Cisco Gigabit Ethernet Switch Module for HP BladeSystem p-Class Release Notes, Cisco IOS Release 12.2(40)SE August 28, 2007 These release notes include important information about this Cisco IOS release for the Cisco Gigabit Ethernet Switch Module (CGESM) for the HP BladeSystem p-Class. This document includes any limitations, restrictions, and caveats that apply to this release.
System Requirements • “Resolved Caveats” section on page 18 • “Documentation Updates” section on page 19 • “Related Documentation” section on page 22 • “Technical support” section on page 23 System Requirements The system requirements are described in these sections: • “Device Manager System Requirements” section on page 2 • “Cluster Compatibility” section on page 3 Device Manager System Requirements These sections describes the hardware and software requirements for using the device manager: •
Upgrading the Switch Software Table 2 Supported Operating Systems and Browsers Operating System Minimum Service Pack or Patch Microsoft Internet Explorer1 Netscape Navigator Windows 2000 None 5.5 or 6.0 7.1 Windows XP None 5.5 or 6.0 7.1 1. Service Pack 1 or higher is required for Internet Explorer 5.5. Cluster Compatibility You cannot create and manage switch clusters through the device manager. To create and manage switch clusters, use the command-line interface (CLI).
Upgrading the Switch Software Deciding Which Files to Use The upgrade procedures in these release notes describe how to perform the upgrade by using a tar file. This file contains the Cisco IOS image file and the files needed for the embedded device manager. You must use the tar file to upgrade the switch through the device manager. To upgrade the switch through the command-line interface (CLI), use the tar file and the archive download-sw privileged EXEC 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 9 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: archive download-sw /overwrite /reload tftp:[[//location]/directory]/image-name.
New Software Features New Software Features These are the new features in this release: • Configuration replacement and rollback to replace the running configuration on a switch with any saved Cisco IOS configuration file • IP Service Level Agreements (IP SLAs) responder support that allows the switch to be a target device for IP SLAs active traffic monitoring • Private VLANs to allow traffic to be segmented at the data-link layer (Layer 2), limiting the size of the broadcast domain • Support for th
Limitations and Restrictions Table 3 CGESM Switch Features and the Minimum Cisco IOS Release Required (continued) Feature Minimum Cisco IOS Release Required SFP module diagnostic-management interface 12.2(25)SE1 Smartports macros 12.2(25)SE1 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.
Limitations and Restrictions • A static IP address might be removed when the previously acquired DHCP IP address lease expires. This problem occurs under these conditions: – When the switch is booted up without a configuration (no config.text file in flash memory). – When the switch is connected to a DHCP server that is configured to give an address to it (the dynamic IP address is assigned to VLAN 1).
Limitations and Restrictions HSRP When the active switch fails in a switch cluster that uses HSRP redundancy, the new active switch might not contain a full cluster member list. The workaround is to ensure that the ports on the standby cluster members are not in the spanning-tree blocking state. To verify that these ports are not in the blocking state, see the “Configuring STP” chapter in the software configuration guide.
Limitations and Restrictions QoS These are the quality of service (QoS) limitations: • Some switch queues are disabled if the buffer size or threshold level is set too low with the mls qos queue-set output global configuration command. The ratio of buffer size to threshold level should be greater than 10 to avoid disabling the queue. The workaround is to choose compatible buffer sizes and threshold levels. (CSCea76893) • When auto-QoS is enabled on the switch, priority queuing is not enabled.
Limitations and Restrictions High CPU utilization can also occur with other conditions, such as when debug messages are logged at a high rate to the console. Use one of these workarounds: • Disable logging to the console. • Rate-limit logging messages to the console. (CSCsg91027) • Remove the logging event spanning-tree interface configuration command from the interfaces. Trunking These are the trunking limitations: • The switch treats frames received with mixed encapsulation (802.
Important Notes Hardware Limitations and Restrictions This is the hardware limitation and restriction: When using CLC-T SFPs in CGESM switches, the SFP module can be installed too far into the switch. This can prevent links from operating properly. The workaround is to slightly pull the SFP out of the module slot.
Important Notes Beginning in privileged EXEC mode, follow these steps to configure the HTTP server interface: Command Purpose Step 1 configure terminal Enter global configuration mode. Step 2 ip http authentication {enable | local | tacacs} Configure the HTTP server interface for the type of authentication that you want to use. • enable—Enable password, which is the default method of HTTP server user authentication, is used.
VLAN Interfaces and MAC Addresses VLAN Interfaces and MAC Addresses All VLAN interfaces have assigned MAC addresses that are derived from the base MAC address. The base MAC address is the hardware address that is on the switch label. It also appears when you enter the show version privileged EXEC command. On the first VLAN interface (VLAN 1), the MAC address is the base MAC address + 0 x 40.
Open Caveats Open IOS Caveats These severity 3 Cisco IOS configuration caveats apply to the CGESM switch: • CSCee08109 If a port-based ACL (PACL) is applied to an 802.1x-enabled port and the client is then disconnected from that port, the PACL is not removed from the port. There is no workaround. • CSCeg04311 When you power on or restart a switch that does not have a config.text file in flash memory, the switch tries to get configuration files from a TFTP server.
Open Caveats • CSCsc26726 Sometimes interfaces Gi0/23 & Gi0/24 will not link up with another switch when the interface speed is set to an explicit value instead of autonegotiated. This does not happen when a copper SFP is used with interfaces Gi0/17 - Gi0/20. The workaround is to autonegotiate the speed with the other device, or to use a different cable type. Use a straight through cable for switch to switch connection, or a cross-over cable for switch to any non switch device connection.
Open Caveats • CSCsg21537 When MAC addresses are learned on an Etherchannel port, the addresses are incorrectly deleted from the MAC address table even when the MAC address table aging timeout value is configured to be longer than the ARP timeout value. This causes intermittent unicast packet flooding in the network. The MAC address is automatically relearned after the ARP refresh.
Resolved Caveats • CSCsj77933 In Cisco IOS Release 12.2(35)SE and Cisco IOS Release 12.2(37)SE, if you enter a space before a comma in the define interface-range or the interface range global configuration command, the space before the comma is not saved in the switch configuration. There is no workaround. • CSCsj87991 A switch configured for Link Layer Discovery Protocol (LLDP) might not correctly report the enabled switch capabilities in the LLDP type, length, and value (TLV) attributes.
Documentation Updates • CSCsi75246 An address learned as a supplicant that is aged out by port security aging is now correctly relearned by port security under any of these conditions: –IEEE 802.1x authentication, port security, and port security aging are enabled on a port. –An address is cleared by port security. –You enter the clear port security privileged EXEC command.
Documentation Updates Configuring System Message Logging Chapter This caution was added to the “Configuring System Message Logging” chapter: Caution Logging messages to the console at a high rate can cause high CPU utilization and adversely affect how the switch operates. Command Reference Updates This is the documentation update for the command reference: • The usage guidelines for the set and unset bootloader commands in the command reference are incorrect.
Documentation Updates The CONFIG_FILE environment variable can also be reset by using the no boot config-file global configuration command. The HELPER_CONFIG_FILE environment variable can also be reset by using the no boot helper-config-file global configuration command. System Messages Guide These are the documentation updates for the system modesties guide: • New System Messages, page 21 • Changed System Messages, page 22 New System Messages The following system messages have been added.
Related Documentation Changed System Messages This system message has changed (both explanation and action). Error Message EC-5-CANNOT_BUNDLE1: Port-channel [chars] is down, port [chars] will remain stand-alone. Explanation The aggregation port is down. The port remains standalone until the aggregation port is up. The first [chars] is the EtherChannel. The second [chars] is the port number. Recommended Action Ensure that the other ports in the bundle have the same configuration.
Technical support Technical support Before you contact HP Be sure to have the following information available before you call HP: • Technical support registration number (if applicable) • Product serial number • Product model name and number • Applicable error messages • Add-on boards or hardware • Third-party hardware or software • Operating system type and revision level HP contact information For the name of the nearest HP authorized reseller: • In the United States, see the HP US service
Technical support Cisco Gigabit Ethernet Switch Module for HP BladeSystem p-Class Release Notes, Cisco IOS Release 12.
