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Cisco Systems DSC9148D8G48PK9 manual Enabling Restrictions on Oversubscription Ratios, Shut down

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Chapter 3 Configuring Fibre Channel Interfaces

Configuring Fibre Channel Interfaces

fc2/7	1	TE	--	up	swl	--	--
fc2/8	1	FX	--	down	swl	--	--
...
fc2/48	1	FX	--	down	sw1	--	--

Step 4 Disable restrictions on oversubscription ratios for the ports.

switch# config t

Enter configuration commands, one per line. End with CNTL/Z. switch(config)# no rate-modeoversubscription-limit module 2

Step 5	Bring up the ports that you shut down in step 2, and display their status to confirm that they are no longer
	shut down.
	switch(config)# interface fc2/1-2, fc2/4-5, fc2/8-38, fc2/43-48
	switch(config-if)# no shutdown
	switch(config-if)# end
	switch# show interface brief
	-------------------------------------------------------------------------------
	Interface	Vsan	Admin	Admin	Status	SFP	Oper	Oper	Port
			Mode	Trunk			Mode	Speed	Channel
				Mode				(Gbps)
	-------------------------------------------------------------------------------
	fc2/1	1	FX	--	up	swl	--		--
	fc2/2	1	FX	--	up	swl	--		--
	fc2/3	1	T	--	up	swl	--		--
	fc2/4	1	FX	--	up	swl	--		--
	fc2/5	1	FX	--	up	swl	--		--
	fc2/6	1	TE	--	up	swl	--		--
	fc2/7	1	TE	--	up	swl	--		--
	fc2/8	1	FX	--	up	swl	--		--
	...
	fc2/48	1	FX	--	up	sw1	--		--

Step 6 Confirm that the ports are now operating with no restrictions on oversubscription ratios.

switch# show running-config include oversubscription-limit

no rate-mode oversubscription-limit module 2 <---	indicates no restrictions on
	oversubscription ratios

Step 7 Save the new oversubscription ratio configuration to the startup configuration.

switch# copy running-config startup-config

Enabling Restrictions on Oversubscription Ratios

Prerequisites

•You must enable restrictions on oversubscription ratios before you can downgrade modules to a previous release.

•Before enabling restrictions on oversubscription ratios, ensure that you have explicitly configured shared ports to out-of-service mode.

		Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide
		Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide
	OL-29284-01, Release 6.x			3-39
	OL-29284-01, Release 6.x			3-39

Image 117

Cisco Systems DSC9148D8G48PK9 manual Enabling Restrictions on Oversubscription Ratios, Shut down, Oversubscription ratios

Contents

Americas Headquarters Cisco MDS 9000 Family NX-OS Interfaces Configuration GuidePage N T E N T S TL Ports Specifying a Port Owner Configuring Fibre Channel Interfaces Information About Interface Buffers Default Settings Deleting an Interface from a PortChannel Verifying NPV Monitoring Ports in a Vsan Xii Enhancements Monitor Policy Feature Port Monitor Port Guard Port Monitor Configuring Port Added information about 22aThree new counters for the port Monitor command About This GuideFlexAttach Monitoring Monitoring a selected port groupEnhancements Audience OrganizationChapter Title Description Boldface font Document ConventionsRelated Documentation Troubleshooting and Reference Command-Line InterfaceFibre Channel Port Rate Limiting Trunks and PortChannelsExtended Credits Port VirtualizationFlexAttach Interfaces Overview FlexAttach OL-29284-01, Release Information About Interfaces Configuring InterfacesInterface Modes Interface DescriptionPort FL PortNP Ports TL Port TE PortTF Port TNP Port Auto ModeSD Port ST PortInterface States Administrative StatesOperational States Reason CodesAdministrative Operational Configuration Status Reason Code NoneReason Codes for Interface States Applicable Reason Code long version Description ModesReason Codes for Nonoperational States Graceful Shutdown Port Administrative Speeds Frame EncapsulationAutosensing Cisco MDS 9000 Family Switch Interface Modes Bit Error ThresholdsBeacon LEDs Speed LEDsSFP Transmitter Types Extended transmitters assigned to Cisco-supported SFPsSFP Transmitter Acronym Definitions CWDM-1590 CWDM-1610 C1590 C1610 TL PortsTranslation from Translation to Example Supported TL Port TranslationsPort Guard TL Port Alpa CachesThreshold Interval Rising Falling Counter Type Seconds Event Port MonitorPort Monitor Port Guard Local SwitchingPort Group Monitor Rising ThresholdManagement Interfaces Slow Drain Device Detection and Congestion AvoidancePrerequisites for Interfaces Generation 1 Interface Configuration GuidelinesGuidelines and Limitations Vsan InterfacesVsan Interface Configuration Guidelines Private Loop Configuration GuidelinesConfiguring Interfaces Default Settings7lists the default settings for interface parameters Parameters DefaultCommand Purpose Configuring Fibre Channel InterfacesConfiguring Interface Modes Setting the Interface Administrative StateSets the administrative mode of Fibre Channel ports to Configuring System Default Port Mode FMode F if applicable Default unless user configuredConfiguring 10-Gbps FC Mode Configuring ISL between Two SwitchesConfiguring Port Administrative Speeds Configuring the Interface Description Configuring Port Speed GroupEnters configuration mode Configuring Beacon ModeInterface configuration submode Specifying a Port OwnerConfiguring Switch Port Attribute Default Values Disabling Bit Error ThresholdConfigures manual entries into the Alpa cache Configuring TL PortsManually Inserting Entries into the Alpa Cache Clearing the Alpa CacheConfiguring Port Guard To enable port monitor, follow these steps Configuring Port MonitorEnables default port monitoring Disables port monitoringConfiguring a Port Monitor Policy Specifies the delta signal loss poll interval Specifies the delta protocol error poll intervalReverts to the default policy for sync loss Reverts to the default policy for Tx performanceConfiguring a Port Monitor Port Guard Configuring Port Group MonitorActivating a Port Monitor Policy Enabling Port Group Monitor Configuring a Port Group Monitor PolicyTurning Off the Monitoring of Specific Counter Reverting to the Default Policy for a Specific CounterActivating a Port Group Monitor Policy Configuring Management InterfacesCreating Vsan Interfaces Configuring Congestion Frame Timeout Value Configuring Stuck Frame Timeout ValueConfiguring No-Credit Timeout Value Specifies the no-credit timeout value and port Configuring Credit Loss Recovery Threshold and ActionMode for the switch Specifies the default no-credit timeout value portConfiguring Interfaces Verifying Interfaces Configuration Verifying Interfaces ConfigurationDiscards, 0 errors Displaying Interface InformationExample 2-3 Displays All Interfaces Example 2-4 Displays Multiple, Specified Interfaces Interface fc1/1 5 , fc2/5Interface fc3/13 , fc3/16 Switch# show interface fc2/2 fc2/2 is trunking Example 2-5 Displays a Specific InterfaceFrames/sec Switch# show interface description Switch# show interface briefExample 2-6 Displays Port Description Example 2-8 Displays Interface Counters Switch# show interface counters fc3/1Example 2-9 Displays Interface Counters in Brief Format Switch# show interface counters briefExample 2-10 Displays Transceiver Information Switch# show running-configSystem default switchport mode F interface fc4/1 Switch# show running-config interface fc1/1Switch# show tlport list Displaying TL Port InformationExample 2-17 Displays the TL Ports in All VSANs Displaying Port Monitor Status and Policies Displaying the Alpa Cache ContentsPort-monitor active Switch# show port-monitorDisplaying Port Group Monitor Status and Policies Switch# show port-group-monitor statusDefault Switch# show port-group-monitorPgm1 Pgm2Displaying Management Interface Configuration Switch# show interface mgmt 0 mgmt0 is upDisplaying Vsan Interface Information OL-29284-01, Release Information About Fibre Channel Interfaces Generations of Modules and SwitchesPart Number Product Name and Description Generation 3 Fabric SwitchBackplane crossbar bandwidth Any-to-any connectivityPort Groups Generation 2 Fabric SwitchesMaximum Product NameDS-C9148-K9 Port 8-Gbps Cisco MDS Fabric switch Generation 3 Fabric SwitchesPart Number Description Per Port Group Gbps Generation 3 ModulesPort Rate Modes Supports Default Speed Product Name Mode and RateSwitches Part Number Description Mode Mode on All Ports Dedicated Rate ModeConfigured Speed Reserved Bandwidth Auto Gbps Auto with 4-Gbps maximumAuto Gbps Auto with 2-Gbps maximum Shared Rate ModeModules Dedicated Rate Mode Configurations for the 8-Gbps ModulesDynamic Bandwidth Management Port SpeedNegotiates to a maximum speed of 4 Gbps Negotiates to a maximum speed of 8 GbpsOversubscription Ratio Restrictions Out-of-Service InterfacesBandwidth Allocation for Oversubscribed Interfaces Switch# show port-resources module 8 ModuleSwitch# show port-resources module Fc5/12 Shared Port-Group Total bandwidth is 32.4 Gbps Fc5/31 Buffers Gbps Upgrade or Downgrade Scenario Switch# show module 2 bandwidth-fairnessBandwidth Fairness Guidelines and Limitations Local Switching Limitations Switch# show port index-allocationPort Index Limitations Number of Port Indexes Required Switch# show moduleGeneration 1 Module Supervisor-1 Module Supervisor-2 Module Port Index Requirements for Generation 1 ModulesPortChannel Limitations PortChannels have the following restrictionsShow port index-allocation startup Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide PortChannel Configuration and Addition Results PortChannelNew Member Members PortChannel Type Addition Type Result If resources are not available Speed mode Auto Auto1 Rate mode Shared Default Port 4-Gbps Port 10-Gbps Parameter Switching ModuleAuto Shared DedicatedConfiguring Fibre Channel Interfaces Port mode BBcredit buffers14 Default Generation 4 Interface Parameters Configure the rate mode dedicated or shared Configure the port modeConfigure the rate mode dedicated or shared to use Task Flow for Configuring 4-Port 10-Gbps Module Interfaces Task Flow for Configuring 12-Port 4-Gbps Module InterfacesConfiguring Port Speed Switch# show interface fc 9/1 fc9/1 is up Configuring Rate ModePort-resources command to Displaying the Rate Mode Configuration for InterfacesSwitch# show port-resource module 4 Module Fc4/1232 8.0 shared Port-Group Total bandwidth is 12.8 Gbps Switch# show port-resources module 7 Module Fc7/13 Configuring Local Switching Disabling Restrictions on Oversubscription Ratios Buffers Gbps Fc2/1 Shared Fc2/2 Fc2/3 Switch# copy running-config startup-config Switch# show running-config include oversubscription-limitEnabling Restrictions on Oversubscription Ratios Shut downEnabling Bandwidth Fairness Configuration submode Taking Interfaces Out of ServiceDisabling Bandwidth Fairness Selects the interface and enters interfaceTakes the interface out of service Disables the interfaceFc9/2 out-of-service Releasing Shared Resources in a Port GroupDisabling ACL Adjacency Sharing for System Image Downgrade Verifying Fibre Channel Interfaces ConfigurationSwitch# show interface fc 9/1 capabilities Switch# show interface fc 4/1 capabilitiesDisplaying Interface Capabilities Displaying SFP Diagnostic Information Configuration Examples for Fibre Channel InterfacesConfiguration Example for 24-Port 8-Gbps Module Interfaces Configuration Example for 48-Port 8-Gbps Module InterfacesEnable the interfaces and return to configuration mode Select the interfaces fc 4/3 through fc 4/4Return to configuration mode Disable the interfaces and take them out of serviceSelect interfaces fc 3/1 Select the interfaces fc 3/2 through fc 3/3Switchconfig# interface fc 4/2 Configuration Example for 48-Port 4-Gbps Module InterfacesSelect the interfaces fc 4/2 through fc 4/10 Select the interfaces fc 4/1 through fc 4/6Configuration Example for 24-Port 4-Gbps Module Interfaces Select the interfaces fc 4/7 through fc 4/10Select the interfaces fc 3/4 through fc 3/6 OL-29284-01, Release Buffer-to-Buffer Credits Information About Interface BuffersBuffer Pools Performance BuffersTotal BB credit buffers 189047 BBCredit Buffers for Switching Modules BBCredit Buffers Per Port Shared Rate ModeGbps Speed BBCredit Buffer Allocation Fx PortPort 8-Gbps Switching Module BBCredit Buffer Allocation Default BBcredit buffers 250 Maximum BBcredit buffers 50024-Port 8-Gbps Switching Module BBCredit Buffer Allocation Default BBcredit buffers 500 Maximum BBcredit buffersTotal Number of BBCredit Buffers per Module Ports 1 through Ports 13 through 60004/44-Port 8-Gbps Switching Module BBCredit Buffer Allocation Three ports with dedicated rate mode and 4-Gbps speedDedicated Rate Mode 48-Port 4-Gbps Switching Module BBCredit Buffer AllocationGbps Speed Gbps Port 4-Gbps Fibre Channel Module BBCredit Buffers 24-Port 4-Gbps Switching Module BBCredit Buffer AllocationPort 4-Gbps Switching Module BBCredit Buffers 12-Port 4-Gbps Switching Module BBCredit Buffer AllocationGbps Speed BBCredit Buffer Allocation Type ISL Fx Port ISL 4-Port 10-Gbps Switching Module BBCredit Buffer Allocation Port 10-Gbps Switching Module BBCredit BuffersGbps Speed BBCredit Buffer Allocation Type PortCisco MDS 9148 Fabric Switch BBCredit Buffers BBCredit Buffers for Fabric SwitchesCisco MDS 9134 Fabric Switch BBCredit Buffers Port 8-Gbps Fabric Switch BBCredit Buffer AllocationUser-configurable BBcredit buffers 4509 250 Cisco MDS 9124 Fabric Switch BBCredit BuffersMDS 9124 Fabric Switch BBCredit Buffer Allocation Defaults Extended BBCreditsPort Group Support for the Extended BBCredits Feature Extended BBcredits on Generation 1 Switching ModulesOL-29284-01, Release Buffer-to-Buffer State Change Number Buffer-to-Buffer Credit RecoveryConfiguring Interface Buffers Configuring Buffer-to-Buffer CreditsReceive Data Field Size Configuring Performance Buffers Configuring Extended BBcredits Enabling Buffer-to-Buffer Credit Recovery Configuring Receive Data Field SizeEnabling the Buffer-to-Buffer State Change Number Interface to 2000 bytes. The default is Verifying BBCredit ConfigurationReduces the data field size for the selected Bytes and the range is from 256 to 2112 bytesCisco MDS 9000 Family NX-OS Interfaces Configuration Guide Trunking E Ports Information About TrunkingTrunking F Ports Link Number Link Description1a and 1b Port trunk with N port Port trunk with NP port Key Concepts Trunking NP port with third-party core switch F portTrunking Protocols PortChannnel with NP portYour Trunk Mode Configuration Trunk Link DefaultPort Type Switch Trunking State Port Mode Port Type Core Switch NPV Switch Trunking State Link ModeVsan and VF-ID Reservations Trunk-Allowed Vsan Lists and VFIDsAre General Guidelines and Limitations Operational and Allowed Vsan ConfigurationSwitchconfig-if#switchport trunk allowed vsan Upgrade and Downgrade LimitationsSwitch# show interface fc2/15 Difference Between TE Ports and TF-TNP PortsW7# show interface fc1/13 Sw7# show interface fc1/13Vsan Mismatch Trunking Misconfiguration ExamplesEnabling the Cisco Trunking and Channeling Protocols Configuring TrunkingConfiguring Trunk Mode Configuring an Allowed-Active List of VSANsEnabling the F Port Trunking and Channeling Protocol Verifying Trunking Configuration Enable Npiv on the MDS core switch Configuration Example for F Port TrunkingConfigure the trunk mode to on on the MDS core switch Configure the port mode to NP on the NPV switchSwitchconfig# copy running-config startup-config Save the configurationOL-29284-01, Release Information About PortChannels Configuring PortChannelsPortChannels Overview PortChannelsPortChannel Flexibility TF PortChannels PortChanneling and TrunkingTrunking Only PortChanneling and Trunking Load BalancingSID1 and DID1-Based Load Balancing SID1, DID1, and Exchange-Based Load Balancing PortChannel ModesChannel Group Configuration Differences On Mode Active ModePortChannel Deletion Interfaces in a PortChannelCompatibility Check Interface Addition to a PortChannelPortChannel Protocols Forcing an Interface AdditionInterface Deletion from a PortChannel Autocreating Channel Groups Channel Group CreationAutocreation User-Configured Channel Group Autocreated Channel GroupPrerequisites for PortChannels Manually Configured Channel GroupsConfiguring PortChannels Guidelines and Limitations TF PortChannel Limitations Generation 1 PortChannel LimitationsValid and Invalid PortChannel Examples 7provides examples of valid PortChannel configurations3lists the default settings for PortChannels Misconfigured ConfigurationsDefault PortChannel Parameters Configuring the PortChannel Mode Configuring PortChannelsConfigures the specified PortChannel 1 using Default on modeAdding an Interface to a PortChannel Deleting PortChannelsDeleting an Interface from a PortChannel Forcing an Interface AdditionVerifying PortChannel Configuration Enabling and Configuring AutocreationConverting to Manually Configured Channel Groups Switch# show port-channel database port-channel Switch# show port-channel summaryExample 6-1 Displays the PortChannel Summary Port-channel databaseSwitch# show port-channel consistency detail Switch# show port-channel consistencyExample 6-4 Displays the Consistency Status without Details Example 6-5 Displays the Consistency Status with DetailsExample 6-7 Displays the PortChannel Compatibility Example 6-6 Displays the PortChannel UsageExample 6-8 Displays Autocreated PortChannels Example 6-9 Displays the Specified PortChannel InterfaceCreate the PortChannel on the MDS core switch Configuration Examples for F and TF PortChannelsCreate the PortChannel on the NPV switch Example 6-10 Displays the PortChannel SummarySwitchconfig# interface port-channel Create the PortChannel in dedicated mode on the NPV switchCisco MDS 9000 Family NX-OS Interfaces Configuration Guide NPV Overview Configuring N Port VirtualizationPort Identifier Virtualization Port VirtualizationNpiv Example Cisco NPV Fabric Configuration NPV Mode NP Ports NP LinksInternal Flogi Parameters Default Port Numbers Parameter Derived FromInternal Flogi Parameters NPV Traffic Management NPV CFS Distribution over IPAuto Traffic MapMultiple Vsan Support DisruptiveNPV Guidelines and Requirements NPV Traffic Management Guidelines Dpvm Configuration GuidelinesConfiguring NPV Configuring N Port VirtualizationNPV and Port Security Configuration Guidelines Enabling N Port Identifier VirtualizationOn the NPV core switch, enters configuration To configure NPV using the CLI, perform the following tasksEnables Npiv mode on the NPV core switch Disables Npiv mode on the NPV core switchConfiguring NPV Traffic Management Enabling the Global Policy for Disruptive Load Balancing Verifying NPV ConfigurationSwitch# show fcns database Switch# show fcns database detailVerifying NPV Switch# show npv flogi-table Switch# show npv internal info traffic-mapVerifying NPV Traffic Management OL-29284-01, Release FlexAttach Virtual pWWN Information About FlexAttach Virtual pWWNFlexAttach Virtual pWWN CFS Distribution SAN Device Virtualization SDV FlexAttach VirtualizationDifference Between SDV and FlexAttach Virtualization Configuring FlexAttach Virtual pWWN Security Settings for FlexAttach Virtual pWWNAutomatically Assigning FlexAttach Virtual pWWN Mapping pWWN to Virtual pWWN Manually Assigning FlexAttach Virtual pWWNCommits the configuration Verifying FlexAttach Virtual pWWN ConfigurationSpecified virtual pWWN and the real pWWN must not be logged To map pWWN to virtual pWWN, perform this taskError Description Workaround Monitoring FlexAttach Virtual pWWNVerifying the End Device Error Description Workaround OL-29284-01, Release Information About Port Tracking Configuring Port TrackingDefault Port Tracking Parameters 1lists the default settings for port tracking parametersConfiguring Port Tracking Information About Configuring Linked PortsEnabling Port Tracking Information About Tracking Multiple Ports Binding a Tracked Port OperationallyTracking Multiple Ports Information About Monitoring Ports in a VsanMonitoring Ports in a Vsan Information AboutForceful Shutdown Displaying Port Tracking InformationForcefully Shutting Down a Tracked Port Linked portSwitch# show interface fc1/1 Switch# show interface port-channelPort linked to interface fc1/1 Switch# show interface fc 1/5 Example 9-4 Displays a Forced Shutdown ConfigurationBandwidth fairness Default settings Example configurations Port 10-Gbps switching modulesAsterisk First operational port IN-2 IN-3 Deleting from PortChannelsMPS-14/2 modules Configuring extended BBcredits Configuring descriptionsIN-5 IN-6 TL ports Alpa caches Configuring Trunk mode Administrative default ConfiguringStatus Trunk ports Displaying information IN-8