Cisco Systems NME-16ES-1G manual Discovery of Newly Installed Switches in Clusters, New out-of-box

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Cisco EtherSwitch Service Modules Feature Guide

Information About the Cisco EtherSwitch Service Modules

Figure 5

Discovery Through Routed Ports

Command device

VLAN 9

RP

RP

VLAN 62

VLAN

9

VLAN 62

(management VLAN 62)

VLAN 9

Member device 7

VLAN 4

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Discovery of Newly Installed Switches in Clusters

To join a cluster, the new, out-of-the-box switch must be connected to the cluster through one of its access ports. An access port (AP) carries the traffic of and belongs to only one VLAN. By default, the new switch and its access ports are assigned to VLAN 1.

When the new switch joins a cluster, its default VLAN changes to the VLAN of the immediately upstream neighbor. The new switch also configures its access port to belong to the VLAN of the immediately upstream neighbor.

The cluster command switch in Figure 6 belongs to VLANs 9 and 16. When new cluster-capable switches join the cluster, the following things happen:

•One cluster-capable switch and its access port are assigned to VLAN 9.

•The other cluster-capable switch and its access port are assigned to management VLAN 16.

Figure 6

Discovery of Newly Installed Switches

Command device

VLAN 9	VLAN 16
Device A	Device B
AP	AP
VLAN 9	VLAN 16
New (out-of-box)	New (out-of-box)
candidate device	candidate device

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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 Management Connectivity to Specific Stack Members Accessing the CLI of a Specific Stack MemberClustering Concepts Cluster Compatibility Command Device CharacteristicsStandby Command Device Characteristics Discovery of Candidates and Members Through CDP Hops Candidate and Member CharacteristicsAutomatic Discovery of Candidates and Members 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 reload Router# service-module gigabitethernet1/0 shutdownRouter# service-module gigabitethernet1/0 reset 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-portsShow version Using the CLI to Manage Switch ClustersRcommand 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+6Router# copy flash xmodem TroubleshootingSample Output for the copy flash xmodem Command 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 BootSet Sample Output for the set CommandExample 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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