Shut down, Oversubscription ratios | Cisco Systems DSC9148D8G48PK9

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 Guide FlexAttach Monitoring Monitoring a selected port groupEnhancements Audience OrganizationChapter Title Description Boldface font Document Conventions Related Documentation Troubleshooting and Reference Command-Line Interface Fibre Channel Port Rate Limiting Trunks and PortChannels Extended Credits Port VirtualizationFlexAttach Interfaces Overview FlexAttach OL-29284-01, Release Information About Interfaces Configuring Interfaces Interface Modes Interface Description Port FL PortNP Ports TL Port TE PortTF Port TNP Port Auto ModeSD Port ST Port Interface States Administrative StatesOperational States Reason Codes Administrative 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 LEDs SFP 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 Translations Port Guard TL Port Alpa Caches Threshold Interval Rising Falling Counter Type Seconds Event Port Monitor Port Monitor Port Guard Local SwitchingPort Group Monitor Rising Threshold Management Interfaces Slow Drain Device Detection and Congestion Avoidance Prerequisites for Interfaces Generation 1 Interface Configuration GuidelinesGuidelines and Limitations Vsan Interfaces Vsan Interface Configuration Guidelines Private Loop Configuration Guidelines Configuring Interfaces Default Settings7lists the default settings for interface parameters Parameters Default Command Purpose Configuring Fibre Channel Interfaces Configuring Interface Modes Setting the Interface Administrative State Sets the administrative mode of Fibre Channel ports to Configuring System Default Port Mode FMode F if applicable Default unless user configured Configuring 10-Gbps FC Mode Configuring ISL between Two Switches Configuring Port Administrative Speeds Configuring the Interface Description Configuring Port Speed Group Enters configuration mode Configuring Beacon ModeInterface configuration submode Specifying a Port Owner Configuring Switch Port Attribute Default Values Disabling Bit Error Threshold Configures manual entries into the Alpa cache Configuring TL PortsManually Inserting Entries into the Alpa Cache Clearing the Alpa Cache Configuring Port Guard To enable port monitor, follow these steps Configuring Port MonitorEnables default port monitoring Disables port monitoring Configuring 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 performance Configuring a Port Monitor Port Guard Configuring Port Group MonitorActivating a Port Monitor Policy Enabling Port Group Monitor Configuring a Port Group Monitor Policy Turning Off the Monitoring of Specific Counter Reverting to the Default Policy for a Specific Counter Activating a Port Group Monitor Policy Configuring Management Interfaces Creating 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 port Configuring Interfaces Verifying Interfaces Configuration Verifying Interfaces Configuration Discards, 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 fc3/1 Example 2-9 Displays Interface Counters in Brief Format Switch# show interface counters brief Example 2-10 Displays Transceiver Information Switch# show running-config System default switchport mode F interface fc4/1 Switch# show running-config interface fc1/1 Switch# 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 Contents Port-monitor active Switch# show port-monitor Displaying Port Group Monitor Status and Policies Switch# show port-group-monitor status Default Switch# show port-group-monitorPgm1 Pgm2 Displaying 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 Switches Part Number Product Name and Description Generation 3 Fabric SwitchBackplane crossbar bandwidth Any-to-any connectivity Port Groups Generation 2 Fabric SwitchesMaximum Product Name DS-C9148-K9 Port 8-Gbps Cisco MDS Fabric switch Generation 3 Fabric SwitchesPart Number Description Per Port Group Gbps Generation 3 Modules Port 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 maximum Auto Gbps Auto with 2-Gbps maximum Shared Rate Mode Modules Dedicated Rate Mode Configurations for the 8-Gbps Modules Dynamic Bandwidth Management Port SpeedNegotiates to a maximum speed of 4 Gbps Negotiates to a maximum speed of 8 Gbps Oversubscription Ratio Restrictions Out-of-Service Interfaces Bandwidth Allocation for Oversubscribed Interfaces Switch# show port-resources module 8 Module Switch# 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 Modules PortChannel 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 Dedicated Configuring 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 Interfaces Configuring Port Speed Switch# show interface fc 9/1 fc9/1 is up Configuring Rate Mode Port-resources command to Displaying the Rate Mode Configuration for Interfaces Switch# 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 down Enabling Bandwidth Fairness Configuration submode Taking Interfaces Out of ServiceDisabling Bandwidth Fairness Selects the interface and enters interface Takes the interface out of service Disables the interfaceFc9/2 out-of-service Releasing Shared Resources in a Port Group Disabling ACL Adjacency Sharing for System Image Downgrade Verifying Fibre Channel Interfaces Configuration Switch# show interface fc 9/1 capabilities Switch# show interface fc 4/1 capabilitiesDisplaying Interface Capabilities Displaying SFP Diagnostic Information Configuration Examples for Fibre Channel Interfaces Configuration 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 4/4 Return to configuration mode Disable the interfaces and take them out of serviceSelect interfaces fc 3/1 Select the interfaces fc 3/2 through fc 3/3 Switchconfig# 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 4/6 Configuration 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 Buffers Buffer Pools Performance Buffers Total BB credit buffers 189047 BBCredit Buffers for Switching Modules BBCredit Buffers Per Port Shared Rate ModeGbps Speed BBCredit Buffer Allocation Fx Port Port 8-Gbps Switching Module BBCredit Buffer Allocation Default BBcredit buffers 250 Maximum BBcredit buffers 500 24-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 6000 4/44-Port 8-Gbps Switching Module BBCredit Buffer Allocation Three ports with dedicated rate mode and 4-Gbps speed Dedicated 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 Allocation Port 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 Port Cisco MDS 9148 Fabric Switch BBCredit Buffers BBCredit Buffers for Fabric SwitchesCisco MDS 9134 Fabric Switch BBCredit Buffers Port 8-Gbps Fabric Switch BBCredit Buffer Allocation User-configurable BBcredit buffers 4509 250 Cisco MDS 9124 Fabric Switch BBCredit BuffersMDS 9124 Fabric Switch BBCredit Buffer Allocation Defaults Extended BBCredits Port Group Support for the Extended BBCredits Feature Extended BBcredits on Generation 1 Switching Modules OL-29284-01, Release Buffer-to-Buffer State Change Number Buffer-to-Buffer Credit Recovery Configuring 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 bytes Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide Trunking E Ports Information About Trunking Trunking 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 port Your Trunk Mode Configuration Trunk Link DefaultPort Type Switch Trunking State Port Mode Port Type Core Switch NPV Switch Trunking State Link Mode Vsan and VF-ID Reservations Trunk-Allowed Vsan Lists and VFIDs Are General Guidelines and Limitations Operational and Allowed Vsan Configuration Switchconfig-if#switchport trunk allowed vsan Upgrade and Downgrade LimitationsSwitch# show interface fc2/15 Difference Between TE Ports and TF-TNP Ports W7# show interface fc1/13 Sw7# show interface fc1/13 Vsan Mismatch Trunking Misconfiguration Examples Enabling the Cisco Trunking and Channeling Protocols Configuring Trunking Configuring 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 switch Switchconfig# copy running-config startup-config Save the configuration OL-29284-01, Release Information About PortChannels Configuring PortChannels PortChannels Overview PortChannelsPortChannel Flexibility TF PortChannels PortChanneling and TrunkingTrunking Only PortChanneling and Trunking Load Balancing SID1 and DID1-Based Load Balancing SID1, DID1, and Exchange-Based Load Balancing PortChannel Modes Channel Group Configuration Differences On Mode Active ModePortChannel Deletion Interfaces in a PortChannel Compatibility Check Interface Addition to a PortChannel PortChannel Protocols Forcing an Interface AdditionInterface Deletion from a PortChannel Autocreating Channel Groups Channel Group Creation Autocreation User-Configured Channel Group Autocreated Channel Group Prerequisites for PortChannels Manually Configured Channel Groups Configuring PortChannels Guidelines and Limitations TF PortChannel Limitations Generation 1 PortChannel Limitations Valid and Invalid PortChannel Examples 7provides examples of valid PortChannel configurations 3lists the default settings for PortChannels Misconfigured ConfigurationsDefault PortChannel Parameters Configuring the PortChannel Mode Configuring PortChannelsConfigures the specified PortChannel 1 using Default on mode Adding an Interface to a PortChannel Deleting PortChannels Deleting an Interface from a PortChannel Forcing an Interface Addition Verifying 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 database Switch# 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 Details Example 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 Interface Create 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 Summary Switchconfig# interface port-channel Create the PortChannel in dedicated mode on the NPV switch Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide NPV Overview Configuring N Port Virtualization Port 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 Map Multiple Vsan Support DisruptiveNPV Guidelines and Requirements NPV Traffic Management Guidelines Dpvm Configuration Guidelines Configuring NPV Configuring N Port VirtualizationNPV and Port Security Configuration Guidelines Enabling N Port Identifier Virtualization On 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 switch Configuring NPV Traffic Management Enabling the Global Policy for Disruptive Load Balancing Verifying NPV Configuration Switch# 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 pWWN FlexAttach 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 pWWN Commits 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 task Error Description Workaround Monitoring FlexAttach Virtual pWWNVerifying the End Device Error Description Workaround OL-29284-01, Release Information About Port Tracking Configuring Port Tracking Default Port Tracking Parameters 1lists the default settings for port tracking parameters Configuring Port Tracking Information About Configuring Linked PortsEnabling Port Tracking Information About Tracking Multiple Ports Binding a Tracked Port Operationally Tracking 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 port Switch# 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 Configuration Bandwidth fairness Default settings Example configurations Port 10-Gbps switching modulesAsterisk First operational port IN-2 IN-3 Deleting from PortChannels MPS-14/2 modules Configuring extended BBcredits Configuring descriptions IN-5 IN-6 TL ports Alpa caches Configuring Trunk mode Administrative default ConfiguringStatus Trunk ports Displaying information IN-8