Cisco Systems NME-16ES-1G manual Switch Stack Configuration Files

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Cisco EtherSwitch Service Modules Feature Guide

Information About the Cisco EtherSwitch Service Modules

Minor Incompatibility Between Cisco EtherSwitch Service Modules

Cisco EtherSwitch service modules or Catalyst 3750 switches with the same major version number but a different minor version number as the stack master are considered partially compatible. When connected to a switch stack, partially compatible modules enter into version mismatch (VM) mode and cannot join the stack. The stack master downloads the software version it is using to any

Cisco EtherSwitch service module in VM mode.

If there is a stack member that is not in VM mode and is running software that can also run on the Cisco EtherSwitch service module or Catalyst 3750 switch in VM mode, the stack master uses that software to upgrade (or downgrade) the software on the Cisco EtherSwitch service module or switch in VM mode. The Cisco EtherSwitch service module or switch in VM mode automatically reloads and joins the stack as a fully functioning member.

Note The stack master does not automatically install the IP services image on a Cisco EtherSwitch

service module or switch running an IP base image or an IP base image on a Cisco EtherSwitch service module or switch running an IP services image.

If none of the stack members are running software that can be installed on the Cisco EtherSwitch service module or switch in VM mode, the stack master scans the switch stack to see if there are any other recommended actions. Recommended actions appear in the system messages log. If there are no other actions to try, the stack master displays the recommended action to upgrade the software running on the switch stack.

The port LEDs on Cisco EtherSwitch service modules or switches in VM mode remain off, and pressing the Mode button does not change the LED mode.

You can also use the show switch privileged EXEC command to see if any stack members are in VM mode.

Switch Stack Configuration Files

The configuration files record the following items:

System-level (global) configuration settings—such as IP, STP, VLAN, and SNMP settings—that apply to all stack members

Stack member interface-specific configuration settings, which are specific for each stack member

The stack master has the saved and running configuration files for the switch stack. All stack members periodically receive synchronized copies of the configuration files from the stack master. If the stack master becomes unavailable, any stack member assuming the role of stack master has the latest configuration files.

Note We recommend that all stack members have Cisco IOS Release 12.1(14)EA1 or later installed to ensure that the interface-specific settings of the stack master are saved in case the stack master is replaced and the running configuration is not saved to the startup configuration.

When a new, out-of-box Cisco EtherSwitch service module or switch joins a switch stack, it uses the system-level settings of that switch stack. If a Cisco EtherSwitch service module or switch is moved to a different switch stack, that Cisco EtherSwitch service module loses its saved configuration file and uses the system-level configuration of the new switch stack.

Cisco IOS Release 12.2(25)SEC

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Contents Guide Release ModificationContents Network Modules Hardware Installation Guide Hardware OverviewSoftware Features and Benefits Ease-of-Use and Ease-of-Deployment Features Performance FeaturesManagement Options Manageability Features Availability FeaturesVlan Features Security Features QoS and CoS Features Power-over-Ethernet Features Monitoring FeaturesOverview of Switch Stacks Cisco StackWise ConceptsSwitch Stack Membership Stack Master Election and Re-Election Switch Stack Bridge ID and Router MAC Address Stack Member NumbersStack Member Priority Values Switch Stack Software Compatibility Recommendations Stack Protocol Version CompatibilitySwitch Stack Configuration Files Switch Stack Management Connectivity Accessing the CLI of a Specific Stack Member Clustering ConceptsManagement Connectivity to Specific Stack Members Command Device Characteristics Standby Command Device CharacteristicsCluster Compatibility Candidate and Member Characteristics Automatic Discovery of Candidates and MembersDiscovery of Candidates and Members Through CDP Hops Vlan Discovery of Candidates and Members Through Different VLANs Switch Discovery of Candidates and Members Through Routed PortsDiscovery of Newly Installed Switches in Clusters New out-of-boxHsrp and Standby Cluster Command Switches Virtual IP Addresses in Clusters Other Considerations for Cluster Standby GroupsAutomatic Recovery of Cluster Configuration IP Addresses in Clusters Hostnames in ClustersSwitch Stack Switch Cluster Passwords in ClustersSwitch Clusters and Switch Stacks Snmp Community Strings in ClustersSwitch Stack Switch Cluster Availability of Switch-Specific Features in Switch Clusters TACACS+ and Radius in ClustersCisco IOS Release 12.225SEC Using Interface Configuration Mode Example Command or Action PurposeBoot flash image-name Dir flashConfigure terminal EnableShow running configuration Service-module interface slot/port sessionShow ip interface brief Show power inlineOutput of the show service-module status command Control+shift+6Router boot flashc2800-adventerprisek9-mz Sample Output for the dir flash Command on the RouterSample Output for the boot flash Command on the Router ExamplesRouter# service-module gigabitethernet2/0 session Router# show running config interface gigabitethernet2/0Router# configure terminal Switch dir flashSwitch# show power inline Switch# show ip interface briefSwitch# ctrl+shift+6 Sample Output for Pressing Ctrl+Shift+6 Followed byFeature Default Setting DhcpSTP Prerequisites Clustering Concepts section on Return Sample Output for Entering an Interface Name Sample Output for Assigning the IP Address and Subnet MaskSample Output for Saving the Configuration to Nvram Command or Action PurposeRouter# service-module gigabitethernet1/0 shutdown Router# service-module gigabitethernet1/0 resetRouter# service-module gigabitethernet1/0 reload Cisco IOS Release 12.225SEC Default Switch Stack Configuration RestrictionsAssigning a Stack Member Number Show switch Sample Output for the switch renumber CommandSample Output for the reload slot Command Switchconfig# switch 6 renumberSetting the Stack Member Priority Value Sample Output for the show switch CommandSwitchconfig# switch 2 priority Verifying Information About the Switch StackSample Output for the switch priority Command Switch show switchSwitch# show platform stack-manager all Switchconfig# show switch neighbors Show switch stack-portsUsing the CLI to Manage Switch Clusters RcommandShow version Sample Output for the rcommand and show version Commands Sample Output for the show cluster members CommandChoose View Refresh Choose Cluster Add to Cluster or Password Cluster memberCreating a Cluster Standby Group Detailed Steps from the CLICluster standby-group HSRP-group-name Routing-redundancyNo switchport Sample Output for the ping tftpserver Command Switch# show flash Sample Output for the show flash CommandSample Output for the copy tftp flash Command Switch# copy tftp flashRecovering from a Corrupted Software Image Using Xmodem Service-module interface slot/port password-reset FlashinitFlashinit Service-module interface slot/portPassword-reset Control+6Troubleshooting Sample Output for the copy flash xmodem CommandRouter# copy flash xmodem Sample Output for the copy tftp xmodem Command Router# copy tftp xmodemRouter# service-module gigabitethernet1/0 session Router# service-module gigabitethernet2/0 password-resetRecovering from a Lost or Forgotten Password Optional loadhelper filesystem/file-url Rename Boot -x -v deviceimagenameEnable secret password Copy flashCopy running-configuration startup-configuration ReloadOptional set Service-module password-reset command BootSample Output for the set Command ExampleSet Scenario Action Result Current-stack-member-number Renumber new-stack-member-number Network Configuration Examples Network Demands Suggested Design Methods Cost-Effective Wiring Closet Redundant Gigabit Backbone Cisco SoftPhone Software 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