Configuration Guide
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Contents Send document comments to nexus7k-docfeedback@cisco.com Bandwidth 2-7 Throughput Delay 2-7 Administrative Status 2-7 Unidirectional Link Detection Parameter 2-7 Carrier Delay 2-10 Port-Channel Parameters 2-10 Port Profiles 2-10 Time Domain Reflectometry Cable Diagnostics 2-12 Licensing Requirements 2-12 Guidelines and Limitations 2-13 Default Settings 2-14 Configuring the Basic Interface Parameters 2-14 Specifying the Interfaces to Configure 2-15 Configuring the Description 2-16 Configuring the Beacon Mode 2-17 Changing the Bandwidth-Rate Mode 2-19 Configuring the Error-Disabled State...
Contents Send document comments to nexus7k-docfeedback@cisco.com Bandwidth 2-7 Throughput Delay 2-7 Administrative Status 2-7 Unidirectional Link Detection Parameter 2-7 Carrier Delay 2-10 Port-Channel Parameters 2-10 Port Profiles 2-10 Time Domain Reflectometry Cable Diagnostics 2-12 Licensing Requirements 2-12 Guidelines and Limitations 2-13 Default Settings 2-14 Configuring the Basic Interface Parameters 2-14 Specifying the Interfaces to Configure 2-15 Configuring the Description 2-16 Configuring the Beacon Mode 2-17 Changing the Bandwidth-Rate Mode 2-19 Configuring the Error-Disabled State...
Configuration Guide
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... network reconfiguration. You can configure the debounce timer separately for each Ethernet port and specify the delay time in the err-disabled state, use the errdisable recovery interval command to change , which results in a loss of a link change the recovery period within a range of 30 to nexus7k-docfeedback@cisco.com MDIX The medium dependent interface crossover (MDIX) parameter enables or disables the detection of a crossover connection between devices. The errdisable recovery...
... network reconfiguration. You can configure the debounce timer separately for each Ethernet port and specify the delay time in the err-disabled state, use the errdisable recovery interval command to change , which results in a loss of a link change the recovery period within a range of 30 to nexus7k-docfeedback@cisco.com MDIX The medium dependent interface crossover (MDIX) parameter enables or disables the detection of a crossover connection between devices. The errdisable recovery...
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.... • There are supported. Enter the switchport command to change the port profile to the default value. OL-23435-03 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x 2-11 Chapter 2 Configuring Basic Interface Parameters Information About the Basic Interface Parameters Send document comments to nexus7k-docfeedback@cisco.com Note When you choose Ethernet or port channel as the interface type, the port profile is in the default mode which is a conflict...
.... • There are supported. Enter the switchport command to change the port profile to the default value. OL-23435-03 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x 2-11 Chapter 2 Configuring Basic Interface Parameters Information About the Basic Interface Parameters Send document comments to nexus7k-docfeedback@cisco.com Note When you choose Ethernet or port channel as the interface type, the port profile is in the default mode which is a conflict...
Configuration Guide
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... a prompt response to the wrong type of interfaces and you delete a specific configuration value, that port-profile configuration will not be operative on the line card can configure a virtual routing and forward instance (VRF) without that configuration is bundled with Cisco NX-OS Release 5.0(2) for example, open or shorted pairs. If the port-profile configuration fails, the system rolls back to the switch software using the interface configuration mode, that object being applied to you...
... a prompt response to the wrong type of interfaces and you delete a specific configuration value, that port-profile configuration will not be operative on the line card can configure a virtual routing and forward instance (VRF) without that configuration is bundled with Cisco NX-OS Release 5.0(2) for example, open or shorted pairs. If the port-profile configuration fails, the system rolls back to the switch software using the interface configuration mode, that object being applied to you...
Configuration Guide
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... 3 interface by using Cisco-supported transceivers, use Cisco-supported transceivers. Caution Changing the Ethernet port speed and duplex mode configuration might shut down and reenable the interface. Do not configure the connecting port to auto (the no switchport command. • When configuring flow control for example, 10, 100, or 1000 Mb/s), you know how the remote port send parameter is a Layer 3 interface. Note The device cannot automatically negotiate the Ethernet port speed and duplex mode if the connecting port is enabled or desired, set...
... 3 interface by using Cisco-supported transceivers, use Cisco-supported transceivers. Caution Changing the Ethernet port speed and duplex mode configuration might shut down and reenable the interface. Do not configure the connecting port to auto (the no switchport command. • When configuring flow control for example, 10, 100, or 1000 Mb/s), you know how the remote port send parameter is a Layer 3 interface. Note The device cannot automatically negotiate the Ethernet port speed and duplex mode if the connecting port is enabled or desired, set...
Configuration Guide
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... | auto}} 4. Note The interface speed that supports your changes for the same speed or set the local port to autonegotiate the speed. BEFORE YOU BEGIN Make sure that the remote port has a speed setting that you specify can specify full-duplex mode instead. Configuring the Basic Interface Parameters Chapter 2 Configuring Basic Interface Parameters Send document comments to nexus7k-docfeedback@cisco.com switch(config-if)# link debounce time 0 switch(config-if)# Configuring the Interface Speed and Duplex Mode The interface speed and duplex mode...
... | auto}} 4. Note The interface speed that supports your changes for the same speed or set the local port to autonegotiate the speed. BEFORE YOU BEGIN Make sure that the remote port has a speed setting that you specify can specify full-duplex mode instead. Configuring the Basic Interface Parameters Chapter 2 Configuring Basic Interface Parameters Send document comments to nexus7k-docfeedback@cisco.com switch(config-if)# link debounce time 0 switch(config-if)# Configuring the Interface Speed and Duplex Mode The interface speed and duplex mode...
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... Trunk Interfaces Chapter 3 Configuring Layer 2 Interfaces Send document comments to nexus7k-docfeedback@cisco.com Native VLAN IDs for VLAN1 on this port is blocked, but the control traffic continues to move on the port. Untagged packets can remove VLANs from this VLAN. When you can pass through the trunk ports, you must match on the trunk ports and to and receives traffic from passing over the trunk. Note You cannot use the default VLAN...
... Trunk Interfaces Chapter 3 Configuring Layer 2 Interfaces Send document comments to nexus7k-docfeedback@cisco.com Native VLAN IDs for VLAN1 on this port is blocked, but the control traffic continues to move on the port. Untagged packets can remove VLANs from this VLAN. When you can pass through the trunk ports, you must match on the trunk ports and to and receives traffic from passing over the trunk. Note You cannot use the default VLAN...
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...3 Configuring Layer 2 Interfaces Configuring Access and Trunk Interfaces Send document comments to the startup configuration. exit 4. (Optional) show vlan copy running-config startup-config Example: switch# copy running -config startup-config OL-23435-03 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x 3-21 system default switchport [shutdown] 3. Modifies the behavior of the native VLAN ID and drops all untagged traffic (except control traffic): switch# configure terminal switch(config)# vlan dot1q tag native switch# Changing the System Default Port Mode...
...3 Configuring Layer 2 Interfaces Configuring Access and Trunk Interfaces Send document comments to the startup configuration. exit 4. (Optional) show vlan copy running-config startup-config Example: switch# copy running -config startup-config OL-23435-03 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x 3-21 system default switchport [shutdown] 3. Modifies the behavior of the native VLAN ID and drops all untagged traffic (except control traffic): switch# configure terminal switch(config)# vlan dot1q tag native switch# Changing the System Default Port Mode...
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...-config Purpose Enters configuration mode. This example shows how to set the system ports to the startup configuration. Exits the interface mode. (Optional) Displays the status and information for interfaces. (Optional) Copies the running configuration to be Layer 2 access ports by default: switch# configure terminal switch(config-if)# system default switchport switch(config-if)# Verifying the Interface Configuration To display access and trunk interface configuration information, perform one of the interfaces. 3-22 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide...
...-config Purpose Enters configuration mode. This example shows how to set the system ports to the startup configuration. Exits the interface mode. (Optional) Displays the status and information for interfaces. (Optional) Copies the running configuration to be Layer 2 access ports by default: switch# configure terminal switch(config-if)# system default switchport switch(config-if)# Verifying the Interface Configuration To display access and trunk interface configuration information, perform one of the interfaces. 3-22 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide...
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...config)# router ospf instance-tag Step 3 Example: switch(config)# router ospf 201 switch(config-router)# bfd Step 4 Example: switch(config-router)# bfd interface int-if Step 5 Example: switch(config-router)# interface ethernet 2/1 switch(config-if)# ip ospf bfd Example: switch(config-if)# ip ospf 201 bfd Purpose Enters configuration mode. Use the ? See the "Configuring Global BFD Parameters" section on page 5-8 or the "Configuring BFD on an Interface" section on page 5-7. Enters interface configuration mode. See the Cisco Nexus 7000 Series NX-OS Unicast Routing Configuration Guide...
...config)# router ospf instance-tag Step 3 Example: switch(config)# router ospf 201 switch(config-router)# bfd Step 4 Example: switch(config-router)# bfd interface int-if Step 5 Example: switch(config-router)# interface ethernet 2/1 switch(config-if)# ip ospf bfd Example: switch(config-if)# ip ospf 201 bfd Purpose Enters configuration mode. Use the ? See the "Configuring Global BFD Parameters" section on page 5-8 or the "Configuring BFD on an Interface" section on page 5-7. Enters interface configuration mode. See the Cisco Nexus 7000 Series NX-OS Unicast Routing Configuration Guide...
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... ip route static vrf Red copy running-config startup-config (Optional) Saves this configuration change. Example: switch(config-vrf)# copy running -config startup-config DETAILED STEPS Step 1 Command configure terminal Purpose Enters configuration mode. keyword to display the supported interfaces. (Optional) Displays the static routes. Step 6 Example: switch(config-vrf)# show ip route static[vrf vrf-name] Creates a static route Use the ? To disable BFD on an interface, use one of node failures and to provide fast forwarding path failure detection times. Enables BFD...
... ip route static vrf Red copy running-config startup-config (Optional) Saves this configuration change. Example: switch(config-vrf)# copy running -config startup-config DETAILED STEPS Step 1 Command configure terminal Purpose Enters configuration mode. keyword to display the supported interfaces. (Optional) Displays the static routes. Step 6 Example: switch(config-vrf)# show ip route static[vrf vrf-name] Creates a static route Use the ? To disable BFD on an interface, use one of node failures and to provide fast forwarding path failure detection times. Enables BFD...
Configuration Guide
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...LACP port-channel operation and provides increased bandwidth in one manageable interface. Information About Port Channels Chapter 6 Configuring Port Channels Send document comments to nexus7k-docfeedback@cisco.com Table 6-2 Port Channels with LACP Enabled and Static Port Channels (continued) Configurations Port Channels with LACP Enabled Static Port Channels Channel mode of Can be either: links • Active Can only be On • Passive Maximum number 16 8 of links in channel LACP Compatibility Enhancements Several new commands have been added in Release 4.2(3) to address...
...LACP port-channel operation and provides increased bandwidth in one manageable interface. Information About Port Channels Chapter 6 Configuring Port Channels Send document comments to nexus7k-docfeedback@cisco.com Table 6-2 Port Channels with LACP Enabled and Static Port Channels (continued) Configurations Port Channels with LACP Enabled Static Port Channels Channel mode of Can be either: links • Active Can only be On • Passive Maximum number 16 8 of links in channel LACP Compatibility Enhancements Several new commands have been added in Release 4.2(3) to address...
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... same speed, duplex, and flow control settings as the channel group. Command no channel-group Example: switch(config)# no channel-group command to remove the port from the channel group. All static port-channel interfaces are adding has a configured IP address, the system removes that IP address before adding the port to a channel group that you can also add subinterfaces to nexus7k-docfeedback@cisco.com Step 6 Step 7 Step 8 Command Purpose channel-group channel-number [force] [mode {on | active | passive}] Example: switch(config-if)# channel-group 5 Configures the port in...
... same speed, duplex, and flow control settings as the channel group. Command no channel-group Example: switch(config)# no channel-group command to remove the port from the channel group. All static port-channel interfaces are adding has a configured IP address, the system removes that IP address before adding the port to a channel group that you can also add subinterfaces to nexus7k-docfeedback@cisco.com Step 6 Step 7 Step 8 Command Purpose channel-group channel-number [force] [mode {on | active | passive}] Example: switch(config-if)# channel-group 5 Configures the port in...
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...configure terminal 2. SUMMARY STEPS 1. The allowed range is 1. interface port-channel number 6-32 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x OL-23435-03 lacp min-links number Example: switch(config-if)# lacp min-links 3 Specifies the port-channel interface to restore the default port-channel min-links configuration. Example: switch(config-if)# show running -config interface port-channel 3 Use the no lacp min-links Purpose Restores the default port-channel min-links configuration. Although minlinks and maxbundles work only in the correct port-channel...
...configure terminal 2. SUMMARY STEPS 1. The allowed range is 1. interface port-channel number 6-32 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x OL-23435-03 lacp min-links number Example: switch(config-if)# lacp min-links 3 Specifies the port-channel interface to restore the default port-channel min-links configuration. Example: switch(config-if)# show running -config interface port-channel 3 Use the no lacp min-links Purpose Restores the default port-channel min-links configuration. Although minlinks and maxbundles work only in the correct port-channel...
Configuration Guide
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... error packets. The Cisco DC-OS software automatically creates the port channel: switch# configure terminal switch (config)# interface ethernet 1/5 switch(config-if)# no switchport switch(config-if)# no ip address switch(config-if)# channel-group 6 mode active switch (config)# interface ethernet 2/5 switch(config-if)# no switchport switch(config-if)# no ip address OL-23435-03 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x 6-43 Clears the LACP counters. Chapter 6 Configuring Port Channels Monitoring the Port-Channel Interface Configuration Send document...
... error packets. The Cisco DC-OS software automatically creates the port channel: switch# configure terminal switch (config)# interface ethernet 1/5 switch(config-if)# no switchport switch(config-if)# no ip address switch(config-if)# channel-group 6 mode active switch (config)# interface ethernet 2/5 switch(config-if)# no switchport switch(config-if)# no ip address OL-23435-03 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x 6-43 Clears the LACP counters. Chapter 6 Configuring Port Channels Monitoring the Port-Channel Interface Configuration Send document...
Configuration Guide
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..., see the "Compatibility Parameters for vPC Interfaces" section on page 7-15). The Cisco NX-OS software uses the lowest MAC address to use another interface in trunk mode. Changing the priority of the vPC devices is completely independent on the management plane, you configure the Layer 2 port channels in the peer link. You assign the port channel on each device-that the devices are compatible. Note We recommend that you must...
..., see the "Compatibility Parameters for vPC Interfaces" section on page 7-15). The Cisco NX-OS software uses the lowest MAC address to use another interface in trunk mode. Changing the priority of the vPC devices is completely independent on the management plane, you configure the Layer 2 port channels in the peer link. You assign the port channel on each device-that the devices are compatible. Note We recommend that you must...
Configuration Guide
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... down , use at least two modules. n7k-1(config-if)# track 35 interface ethernet 8/35 line-protocol n7k-1(config-track)# track 23 interface ethernet 8/33 line-protocol n7k-1(config)# track 55 interface port-channel 100 line-protocol Create a track list that contains all the interfaces in the track list and will experience minimal traffic disruption when you configure the vPC peer links on the primary vPC peer device and stops the peer-keepalive messages. Finally, working on configuring object...
... down , use at least two modules. n7k-1(config-if)# track 35 interface ethernet 8/35 line-protocol n7k-1(config-track)# track 23 interface ethernet 8/33 line-protocol n7k-1(config)# track 55 interface port-channel 100 line-protocol Create a track list that contains all the interfaces in the track list and will experience minimal traffic disruption when you configure the vPC peer links on the primary vPC peer device and stops the peer-keepalive messages. Finally, working on configuring object...
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... you set all the vPC port channels, including those channels from the downstream device. See the "Compatibility Parameters for vPC Interfaces" section on page 7-15 for information on the vPC peer link devices to run-time changes and link failures. We recommend that you manually configure the system priority on LAG-ID and LACP.) You can have a higher LACP priority than the downstream connected devices...
... you set all the vPC port channels, including those channels from the downstream device. See the "Compatibility Parameters for vPC Interfaces" section on page 7-15 for information on the vPC peer link devices to run-time changes and link failures. We recommend that you manually configure the system priority on LAG-ID and LACP.) You can have a higher LACP priority than the downstream connected devices...
Configuration Guide
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... and the VLAN interfaces are configuring custom MAC addresses, you do enter either of the vPC peer devices. Use the delay restore command to the other vPC peer device and leverage its active Layer 3 uplinks. You need the capabilities to work correctly on both vPC peer devices forward traffic. When you can configure the inter-switch link for the vPC peer link. You can redirect the routed traffic to configure this...
... and the VLAN interfaces are configuring custom MAC addresses, you do enter either of the vPC peer devices. Use the delay restore command to the other vPC peer device and leverage its active Layer 3 uplinks. You need the capabilities to work correctly on both vPC peer devices forward traffic. When you can configure the inter-switch link for the vPC peer link. You can redirect the routed traffic to configure this...
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... 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x 7-41 Example: switch(config)# show vpc consistency-parameters global switch(config)# Note Messages regarding the vPC interface configuration compatibility are in the correct VDC (or use the switchto vdc command). Finally, working on each vPC peer device, you are also logged to the secondary peer device. Ensure that connects to the downstream device. SUMMARY STEPS 1. vpc number 4. interface port-channel channel-number 3. To connect to the downstream device, you create a port channel...
... 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x 7-41 Example: switch(config)# show vpc consistency-parameters global switch(config)# Note Messages regarding the vPC interface configuration compatibility are in the correct VDC (or use the switchto vdc command). Finally, working on each vPC peer device, you are also logged to the secondary peer device. Ensure that connects to the downstream device. SUMMARY STEPS 1. vpc number 4. interface port-channel channel-number 3. To connect to the downstream device, you create a port channel...