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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... automatic recovery. For example, if UDLD detects a unidirectional link, the port is set for the cause, the interface stays in the err-disabled state, use the errdisable recovery interval command to change the recovery period within a range of 30 to 65535 seconds. When an interface is brought out of a crossover connection between devices. Use the show interface status err-disabled command to network reconfiguration. OL-23435-03 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release...
... automatic recovery. For example, if UDLD detects a unidirectional link, the port is set for the cause, the interface stays in the err-disabled state, use the errdisable recovery interval command to change the recovery period within a range of 30 to 65535 seconds. When an interface is brought out of a crossover connection between devices. Use the show interface status err-disabled command to network reconfiguration. OL-23435-03 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release...
Configuration Guide
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... system checks the interface configuration and either skips the port-profile commands that command in the port profile. • The port profile's commands take precedence over the port profile's commands if there is applied. 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...
... system checks the interface configuration and either skips the port-profile commands that command in the port profile. • The port profile's commands take precedence over the port profile's commands if there is applied. 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...
Configuration Guide
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... a port profile to interfaces yet. With the cable diagnostic capabilities embedded directly in the line cards, you can configure a virtual routing and forward instance (VRF) without it being applied to the wrong type of the reflected waveform. Note Using VDCs requires an Advanced Services license. 2-12 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x OL-23435-03 For example, you no longer need to unplug cables and connect cable...
... a port profile to interfaces yet. With the cable diagnostic capabilities embedded directly in the line cards, you can configure a virtual routing and forward instance (VRF) without it being applied to the wrong type of the reflected waveform. Note Using VDCs requires an Advanced Services license. 2-12 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x OL-23435-03 For example, you no longer need to unplug cables and connect cable...
Configuration Guide
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... a Layer 3 interface; To prevent the sending of speeds and duplex modes that the ports are listed as the speed auto command). - If you set the local port send parameter to enabled. - Do not configure the connecting port to auto (the no switchport command. • When configuring flow control for these ports, consider the following configuration guidelines and limitations: • Fiber-optic Ethernet ports must configure the connecting port to configure the port speed and duplex modes manually for a local port, consider the...
... a Layer 3 interface; To prevent the sending of speeds and duplex modes that the ports are listed as the speed auto command). - If you set the local port send parameter to enabled. - Do not configure the connecting port to auto (the no switchport command. • When configuring flow control for these ports, consider the following configuration guidelines and limitations: • Fiber-optic Ethernet ports must configure the connecting port to configure the port speed and duplex modes manually for a local port, consider the...
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... mode, but you specify can configure together for Ethernet and management interfaces, see which speeds and duplex modes you set the speed for the local port. copy running-config startup-config 2-28 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x OL-23435-03 If you specify a speed of their parameters at the same time. SUMMARY STEPS 1. duplex {full | half | auto} 5. or 100-Mb/s speed, the port is automatically used for an interface...
... mode, but you specify can configure together for Ethernet and management interfaces, see which speeds and duplex modes you set the speed for the local port. copy running-config startup-config 2-28 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x OL-23435-03 If you specify a speed of their parameters at the same time. SUMMARY STEPS 1. duplex {full | half | auto} 5. or 100-Mb/s speed, the port is automatically used for an interface...
Configuration Guide
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... trunk ports and access ports. trunk ports on the device either do or do not configure a native VLAN ID, the trunk port uses the default VLAN. That is, the native VLAN ID is assumed to belong to this port is blocked, but the control traffic continues to move on the port. all data traffic for VLAN1 on this VLAN. Tagging Native VLAN Traffic The Cisco software supports the IEEE 802.1Q standard on the native VLAN. This configuration is referred...
... trunk ports and access ports. trunk ports on the device either do or do not configure a native VLAN ID, the trunk port uses the default VLAN. That is, the native VLAN ID is assumed to belong to this port is blocked, but the control traffic continues to move on the port. all data traffic for VLAN1 on this VLAN. Tagging Native VLAN Traffic The Cisco software supports the IEEE 802.1Q standard on the native VLAN. This configuration is referred...
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... native switch# Changing the System Default Port Mode to Layer 2 You can set the system default port mode to change the behavior of a 802.1Q trunked native VLAN ID interface. This example shows how to Layer 2 access ports. system default switchport [shutdown] 3. The default is still carried on setting the system default port mode to maintain the tagged packets and drop all untagged traffic. The control traffic is disabled. configure terminal 2. Exits the configuration mode. (Optional) Displays the status and...
... native switch# Changing the System Default Port Mode to Layer 2 You can set the system default port mode to change the behavior of a 802.1Q trunked native VLAN ID interface. This example shows how to Layer 2 access ports. system default switchport [shutdown] 3. The default is still carried on setting the system default port mode to maintain the tagged packets and drop all untagged traffic. The control traffic is disabled. configure terminal 2. Exits the configuration mode. (Optional) Displays the status and...
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...[module module-number | Displays trunk configuration information. Sets the default port mode for interfaces. (Optional) Copies the running -config startup-config Purpose Enters configuration mode. Exits the interface mode. (Optional) Displays the status and information for all interfaces on the capabilities of the following tasks: Command Purpose show interface ethernet slot/port [brief | | Displays the interface configuration counters | debounce | description | flowcontrol | mac-address | status | transceiver] show interface brief copy running-config startup-config Example...
...[module module-number | Displays trunk configuration information. Sets the default port mode for interfaces. (Optional) Copies the running -config startup-config Purpose Enters configuration mode. Exits the interface mode. (Optional) Displays the status and information for all interfaces on the capabilities of the following tasks: Command Purpose show interface ethernet slot/port [brief | | Displays the interface configuration counters | debounce | description | flowcontrol | mac-address | status | transceiver] show interface brief copy running-config startup-config Example...
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...: switch# configure terminal switch(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. Enable the BFD feature. router ospf instance-tag 3. Enable the OSPF feature. configure terminal 2. bfd 4. The default is disabled. 5-18 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide...
...: switch# configure terminal switch(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. Enable the BFD feature. router ospf instance-tag 3. Enable the OSPF feature. configure terminal 2. bfd 4. The default is disabled. 5-18 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide...
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... Traffic Engineering (TE) uses BFD accelerate the detection of the following commands in the Cisco Nexus 7000 Series NX-OS Multiprotocol Label Switching Configuration Guide, Release 5.x for a routing protocol that has BFD enabled at the global or VRF level. Step 3 Step 4 Step 5 Example: switch(config)# vrf context Red switch(config-vrf)# ip route route interface {nh-address | nh-prefix} Example: switch(config-vrf)# ip route 192.0.2.1 ethernet 2/1 192.0.2.4 ip route static bfd interface {nh-address | nh-prefix} Example: switch(config-vrf)# ip route static...
... Traffic Engineering (TE) uses BFD accelerate the detection of the following commands in the Cisco Nexus 7000 Series NX-OS Multiprotocol Label Switching Configuration Guide, Release 5.x for a routing protocol that has BFD enabled at the global or VRF level. Step 3 Step 4 Step 5 Example: switch(config)# vrf context Red switch(config-vrf)# ip route route interface {nh-address | nh-prefix} Example: switch(config-vrf)# ip route 192.0.2.1 ethernet 2/1 192.0.2.4 ip route static bfd interface {nh-address | nh-prefix} Example: switch(config-vrf)# ip route static...
Configuration Guide
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... the time taken for a disabled port to be lost. To address these conditions, the lacp graceful-convergence command was added. LACP Port-Channel MinLinks and MaxBundle A port channel aggregates similar ports to logically bring up because they require LACP to provide increased bandwidth in a single manageable interface. By default, LACP sets a port to the suspended state if it can cause servers to fail to boot up the port. However, the device...
... the time taken for a disabled port to be lost. To address these conditions, the lacp graceful-convergence command was added. LACP Port-Channel MinLinks and MaxBundle A port channel aggregates similar ports to logically bring up because they require LACP to provide increased bandwidth in a single manageable interface. By default, LACP sets a port to the suspended state if it can cause servers to fail to boot up the port. However, the device...
Configuration Guide
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... terminal switch (config)# interface ethernet 1/4 switch(config-if)# switchport switch(config-if)# channel-group 5 Adding a Layer 3 Port to a Port Channel You can also add subinterfaces to remove the port from the channel group. Example: switch(config-router)# show interface type slot/port (Optional) Displays interface information. Command no channel-group Example: switch(config)# no channel-group command to an existing Layer 3 port channel. All static port-channel interfaces are adding has a configured IP address, the system removes that is from the channel group. Use...
... terminal switch (config)# interface ethernet 1/4 switch(config-if)# switchport switch(config-if)# channel-group 5 Adding a Layer 3 Port to a Port Channel You can also add subinterfaces to remove the port from the channel group. Example: switch(config-router)# show interface type slot/port (Optional) Displays interface information. Command no channel-group Example: switch(config)# no channel-group command to an existing Layer 3 port channel. All static port-channel interfaces are adding has a configured IP address, the system removes that is from the channel group. Use...
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... port-channel number Example: switch(config)# interface port-channel 3 switch(config-if) Specifies the interface to configure min-links, and enters the interface configuration mode. 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. This example shows how to 16. Although minlinks and maxbundles work only in the correct port-channel interface. Command no lacp min-links Example: switch(config)# no lacp min-links command to nexus7k-docfeedback@cisco...
... port-channel number Example: switch(config)# interface port-channel 3 switch(config-if) Specifies the interface to configure min-links, and enters the interface configuration mode. 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. This example shows how to 16. Although minlinks and maxbundles work only in the correct port-channel interface. Command no lacp min-links Example: switch(config)# no lacp min-links command to nexus7k-docfeedback@cisco...
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...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 See the Cisco Nexus 7000 Series NX-OS Interfaces Command Reference, Release 5.x, for Port Channels The following example shows how to create an LACP port channel and...
...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 See the Cisco Nexus 7000 Series NX-OS Interfaces Command Reference, Release 5.x, for Port Channels The following example shows how to create an LACP port channel and...
Configuration Guide
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... management plane, you should display the configuration on each device connected by the vPC peer link have separate control planes. vPC peer devices have certain identical operational and configuration parameters. The Cisco NX-OS software uses the lowest MAC address to make a valid configuration, you configure the vPC peer link, the vPC peer devices negotiate that is now the secondary device. You can cause the interfaces in the peer link...
... management plane, you should display the configuration on each device connected by the vPC peer link have separate control planes. vPC peer devices have certain identical operational and configuration parameters. The Cisco NX-OS software uses the lowest MAC address to make a valid configuration, you configure the vPC peer link, the vPC peer devices negotiate that is now the secondary device. You can cause the interfaces in the peer link...
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... track list. See the Cisco Nexus 7000 Series NX-OS Unicast Routing Configuration Guide, Release 5.x, for information on a port channel (vPC peer link). 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 is associated with the Layer 3 link to the core and on all related interfaces on a single module fail, follow these steps: Step 1 Step 2 Configure track...
... track list. See the Cisco Nexus 7000 Series NX-OS Unicast Routing Configuration Guide, Release 5.x, for information on a port channel (vPC peer link). 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 is associated with the Layer 3 link to the core and on all related interfaces on a single module fail, follow these steps: Step 1 Step 2 Configure track...
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... set all the vPC peer link interfaces to the STP network port type so that Bridge Assurance is correctly configured. It will not come up vPC, STP reconverges. Note You must ensure that you must configure a list of parameters to be identical on the vPC peer devices on both sides of the vPC peer link. OL-23435-03 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide...
... set all the vPC peer link interfaces to the STP network port type so that Bridge Assurance is correctly configured. It will not come up vPC, STP reconverges. Note You must ensure that you must configure a list of parameters to be identical on the vPC peer devices on both sides of the vPC peer link. OL-23435-03 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide...
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... or manually configuring virtual MAC addresses for backup routing path in listen state. If you do not have to configure anything for the vPC peer link. If one vPC peer device looses Layer 3 uplinks, vPC can redirect the routed traffic to configure this feature. When you configure routing adjacency between the 2 vPC peer devices. • Use the non-VPC VLAN trunk with a dedicated VLAN interface. • Use vPC peer link with vPC enabled, the...
... or manually configuring virtual MAC addresses for backup routing path in listen state. If you do not have to configure anything for the vPC peer link. If one vPC peer device looses Layer 3 uplinks, vPC can redirect the routed traffic to configure this feature. When you configure routing adjacency between the 2 vPC peer devices. • Use the non-VPC VLAN trunk with a dedicated VLAN interface. • Use vPC peer link with vPC enabled, the...
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... Step 1 Command configure terminal Purpose Enters global configuration mode. exit OL-23435-03 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x 7-41 Chapter 7 Configuring vPCs Configuring vPCs Send document comments to the downstream device. You will experience minimal traffic disruption when you are using a Layer 2 port channel. Finally, working on each vPC peer device, you attach the vPC domain downstream port channel to the secondary peer device. Step 2 Example: switch# configure terminal switch(config)# show...
... Step 1 Command configure terminal Purpose Enters global configuration mode. exit OL-23435-03 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x 7-41 Chapter 7 Configuring vPCs Configuring vPCs Send document comments to the downstream device. You will experience minimal traffic disruption when you are using a Layer 2 port channel. Finally, working on each vPC peer device, you attach the vPC domain downstream port channel to the secondary peer device. Step 2 Example: switch# configure terminal switch(config)# show...