Cisco Systems NME-16ES-1G manual Vlan

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Cisco EtherSwitch Service Modules Feature Guide

Information About the Cisco EtherSwitch Service Modules

Figure 1

Discovery Through CDP Hops

Command device

VLAN 16			VLAN 62
Member				Member
device 8				device 10
Member				Device 12
device 9				Device 12
device 9
Device 11				Device 13 Candidate
candidate
candidate
device				devices
device				devices

Edge of
cluster	Device 14
	Device 14

Device 15

101321

Discovery of Candidates and Members Through Non-CDP-Capable and Noncluster-Capable Devices

If a cluster command switch is connected to a non-CDP-capablethird-party hub (such as a non-Cisco hub), it can discover cluster-enabled devices connected to that third-party hub. However, if the cluster command switch is connected to a noncluster-capable Cisco device, it cannot discover a cluster-enabled device connected beyond the noncluster-capable Cisco device.

Figure 2 shows that the cluster command switch discovers the switch that is connected to a third-party hub. However, the cluster command switch does not discover the switch that is connected to a Catalyst 5000 switch.

Figure 2

Discovery Through Non-CDP-Capable and Noncluster-Capable Devices

Command device

Third-party hub (non-CDP-capable)

Candidate device

Catalyst 5000 switch (noncluster-capable)

Candidate device	89377

Cisco IOS Release 12.2(25)SEC

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Contents Release Modification GuideContents Hardware Overview Network Modules Hardware Installation GuideSoftware Features and Benefits Performance Features Ease-of-Use and Ease-of-Deployment FeaturesManagement Options Availability Features Manageability FeaturesVlan Features Security Features QoS and CoS Features Monitoring Features Power-over-Ethernet FeaturesCisco StackWise Concepts Overview of Switch StacksSwitch Stack Membership Stack Master Election and Re-Election Stack Member Numbers Switch Stack Bridge ID and Router MAC AddressStack Member Priority Values Stack Protocol Version Compatibility Switch Stack Software Compatibility RecommendationsSwitch 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 Discovery of Candidates and Members Through Routed Ports SwitchNew out-of-box Discovery of Newly Installed Switches in ClustersHsrp and Standby Cluster Command Switches Other Considerations for Cluster Standby Groups Virtual IP Addresses in ClustersAutomatic Recovery of Cluster Configuration Hostnames in Clusters IP Addresses in ClustersSnmp Community Strings in Clusters Passwords in ClustersSwitch Clusters and Switch Stacks Switch Stack Switch ClusterSwitch Stack Switch Cluster TACACS+ and Radius in Clusters Availability of Switch-Specific Features in Switch ClustersCisco IOS Release 12.225SEC Using Interface Configuration Mode Dir flash Command or Action PurposeBoot flash image-name ExampleService-module interface slot/port session EnableShow running configuration Configure terminalControl+shift+6 Show power inlineOutput of the show service-module status command Show ip interface briefExamples Sample Output for the dir flash Command on the RouterSample Output for the boot flash Command on the Router Router boot flashc2800-adventerprisek9-mzSwitch dir flash Router# show running config interface gigabitethernet2/0Router# configure terminal Router# service-module gigabitethernet2/0 sessionSample Output for Pressing Ctrl+Shift+6 Followed by Switch# show ip interface briefSwitch# ctrl+shift+6 Switch# show power inlineDhcp Feature Default SettingSTP Prerequisites Clustering Concepts section on Return Sample Output for Assigning the IP Address and Subnet Mask Sample Output for Entering an Interface NameCommand or Action Purpose Sample Output for Saving the Configuration to NvramRouter# service-module gigabitethernet1/0 reload Router# service-module gigabitethernet1/0 shutdownRouter# service-module gigabitethernet1/0 reset Cisco IOS Release 12.225SEC Restrictions Default Switch Stack ConfigurationAssigning a Stack Member Number Switchconfig# switch 6 renumber Sample Output for the switch renumber CommandSample Output for the reload slot Command Show switchSample Output for the show switch Command Setting the Stack Member Priority ValueSwitch show switch Verifying Information About the Switch StackSample Output for the switch priority Command Switchconfig# switch 2 prioritySwitch# show platform stack-manager all Show switch stack-ports Switchconfig# show switch neighborsShow version Using the CLI to Manage Switch ClustersRcommand Sample Output for the show cluster members Command Sample Output for the rcommand and show version CommandsChoose View Refresh Choose Cluster Add to Cluster or Cluster member PasswordDetailed Steps from the CLI Creating a Cluster Standby GroupRouting-redundancy Cluster standby-group HSRP-group-nameNo switchport Sample Output for the ping tftpserver Command Switch# copy tftp flash Sample Output for the show flash CommandSample Output for the copy tftp flash Command Switch# show flashService-module interface slot/port password-reset Flashinit Recovering from a Corrupted Software Image Using XmodemControl+6 Service-module interface slot/portPassword-reset FlashinitRouter# copy flash xmodem TroubleshootingSample Output for the copy flash xmodem Command Router# copy tftp xmodem Sample Output for the copy tftp xmodem CommandRouter# service-module gigabitethernet2/0 password-reset Router# service-module gigabitethernet1/0 sessionRecovering from a Lost or Forgotten Password Optional loadhelper filesystem/file-url Copy flash Boot -x -v deviceimagenameEnable secret password RenameReload Copy running-configuration startup-configurationOptional set Boot Service-module password-reset commandSet 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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