Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting vPCs - Revision history

Jeffrlee at 22:06, 13 March 2013

2013-03-13T22:06:10Z

← Older revision		Revision as of 22:06, 13 March 2013
Line 28:		Line 28:
	\|aling="center"\|'''Guide Contents'''		\|aling="center"\|'''Guide Contents'''
	\|-		\|-
-	\|[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Overview\|Troubleshooting Overview]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Installs, Upgrades, and Reboots\|Troubleshooting Installs, Upgrades, and Reboots]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Licensing\|Troubleshooting Licensing]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting VDCs\|Troubleshooting VDCs]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting CFS\|Troubleshooting CFS]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Ports\|Troubleshooting Ports]]<br>''Troubleshooting vPCs {this section}''<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting VLANs\|Troubleshooting VLANs]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting STP\|Troubleshooting STP]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Routing\|Troubleshooting Routing]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Unicast Traffic\|Troubleshooting Unicast Traffic]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting WCCP\|Troubleshooting WCCP]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Memory\|Troubleshooting Memory]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Packet Flow Issues\|Troubleshooting Packet Flow Issues]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Before Contacting Technical Support\|Before Contacting Technical Support]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Tools and Methodology\|Troubleshooting Tools and Methodology]]	+	\|[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Overview\|Troubleshooting Overview]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Installs, Upgrades, and Reboots\|Troubleshooting Installs, Upgrades, and Reboots]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Licensing\|Troubleshooting Licensing]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting VDCs\|Troubleshooting VDCs]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting CFS\|Troubleshooting CFS]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Ports\|Troubleshooting Ports]]<br>''Troubleshooting vPCs {this section}''<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting VLANs\|Troubleshooting VLANs]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting STP\|Troubleshooting STP]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Routing\|Troubleshooting Routing]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Unicast Traffic\|Troubleshooting Unicast Traffic]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting WCCP\|Troubleshooting WCCP]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Memory\|Troubleshooting Memory]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting FCoE\|Troubleshooting FCoE]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Packet Flow Issues\|Troubleshooting Packet Flow Issues]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Before Contacting Technical Support\|Before Contacting Technical Support]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Tools and Methodology\|Troubleshooting Tools and Methodology]]
	\|}		\|}

Sukumars at 21:27, 30 November 2011

2011-11-30T21:27:06Z

← Older revision		Revision as of 21:27, 30 November 2011
Line 1:		Line 1:
	{{Template:Required Metadata}}		{{Template:Required Metadata}}
-	This article describes how to ~~troubleshoot~~ virtual Port Channel(vPC) problems on a Cisco NX-OS device.	+
		+	This article describes how to do basic troubleshooting of virtual Port Channel(vPC) problems on a Cisco Nexus 7000 NX-OS device.
		+
		+
		+	Troubleshooting vPC on Nexus 7000 is covered in detail in Cisco-Live presentation. Sections of this presentation covers,
		+	both platform independent, and platform specific step by step troubleshooting for vPC, among other things. Access to
		+	this presentation is available FREE. Follow the below instructions to access the presentation
		+
		+
		+	1. Visit https://www.ciscolivevirtual.com/
		+
		+	2. Register for free.
		+
		+	3. Click on "Cisco Live Virtual" link.
		+
		+	4. Click on the ‘Sessions’ Tab on top, and select ‘2011 Sessions Catalog’
		+
		+	5. In the search box, type “BRKCRS-3144” and Submit search.
		+
		+	6. Select the session. You can either View the Session (or) download the pdf.
		+
		+	7. vPC troubleshooting is covered from slides 64 through 80.
		+
		+

	{\| align="right" border="1"		{\| align="right" border="1"

Sdurham at 18:00, 29 November 2010

2010-11-29T18:00:26Z

← Older revision		Revision as of 18:00, 29 November 2010
Line 5:		Line 5:
	\|aling="center"\|'''Guide Contents'''		\|aling="center"\|'''Guide Contents'''
	\|-		\|-
-	\|[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Overview\|Troubleshooting Overview]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Installs, Upgrades, and Reboots\|Troubleshooting Installs, Upgrades, and Reboots]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Licensing\|Troubleshooting Licensing]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting VDCs\|Troubleshooting VDCs]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting CFS\|Troubleshooting CFS]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Ports\|Troubleshooting Ports]]<br>''Troubleshooting vPCs {this section}''<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting VLANs\|Troubleshooting VLANs]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting STP\|Troubleshooting STP]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Routing\|Troubleshooting Routing]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting WCCP\|Troubleshooting WCCP]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Memory\|Troubleshooting Memory]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Packet Flow Issues\|Troubleshooting Packet Flow Issues]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Before Contacting Technical Support\|Before Contacting Technical Support]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Tools and Methodology\|Troubleshooting Tools and Methodology]]	+	\|[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Overview\|Troubleshooting Overview]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Installs, Upgrades, and Reboots\|Troubleshooting Installs, Upgrades, and Reboots]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Licensing\|Troubleshooting Licensing]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting VDCs\|Troubleshooting VDCs]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting CFS\|Troubleshooting CFS]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Ports\|Troubleshooting Ports]]<br>''Troubleshooting vPCs {this section}''<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting VLANs\|Troubleshooting VLANs]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting STP\|Troubleshooting STP]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Routing\|Troubleshooting Routing]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Unicast Traffic\|Troubleshooting Unicast Traffic]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting WCCP\|Troubleshooting WCCP]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Memory\|Troubleshooting Memory]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Packet Flow Issues\|Troubleshooting Packet Flow Issues]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Before Contacting Technical Support\|Before Contacting Technical Support]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Tools and Methodology\|Troubleshooting Tools and Methodology]]
	\|}		\|}

Sdurham at 15:28, 15 September 2010

2010-09-15T15:28:18Z

← Older revision		Revision as of 15:28, 15 September 2010
Line 5:		Line 5:
	\|aling="center"\|'''Guide Contents'''		\|aling="center"\|'''Guide Contents'''
	\|-		\|-
-	\|[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Overview\|Troubleshooting Overview]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Installs, Upgrades, and Reboots\|Troubleshooting Installs, Upgrades, and Reboots]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Licensing\|Troubleshooting Licensing]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting VDCs\|Troubleshooting VDCs]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting CFS\|Troubleshooting CFS]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Ports\|Troubleshooting Ports]]<br>''Troubleshooting vPCs {this section}''<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting VLANs\|Troubleshooting VLANs]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting STP\|Troubleshooting STP]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Routing\|Troubleshooting Routing]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting WCCP\|Troubleshooting WCCP]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Memory\|Troubleshooting Memory]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Before Contacting Technical Support\|Before Contacting Technical Support]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Tools and Methodology\|Troubleshooting Tools and Methodology]]	+	\|[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Overview\|Troubleshooting Overview]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Installs, Upgrades, and Reboots\|Troubleshooting Installs, Upgrades, and Reboots]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Licensing\|Troubleshooting Licensing]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting VDCs\|Troubleshooting VDCs]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting CFS\|Troubleshooting CFS]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Ports\|Troubleshooting Ports]]<br>''Troubleshooting vPCs {this section}''<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting VLANs\|Troubleshooting VLANs]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting STP\|Troubleshooting STP]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Routing\|Troubleshooting Routing]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting WCCP\|Troubleshooting WCCP]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Memory\|Troubleshooting Memory]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Packet Flow Issues\|Troubleshooting Packet Flow Issues]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Before Contacting Technical Support\|Before Contacting Technical Support]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Tools and Methodology\|Troubleshooting Tools and Methodology]]
	\|}		\|}

Sdurham: /* Cannot Enable the vPC Feature */ added more scenarios

2010-09-15T14:00:11Z

Cannot Enable the vPC Feature: added more scenarios

← Older revision		Revision as of 14:00, 15 September 2010
Line 204:		Line 204:
	2 4.1(5) 1.2		2 4.1(5) 1.2
	3 4.1(5) 1.0 '''>>> Must be 1.3 or later.'''		3 4.1(5) 1.0 '''>>> Must be 1.3 or later.'''
		+
		+
		+
		+	== vPC in Blocking State==
		+
		+
		+	vPC may be in the blocking state because of Bride Assurance (BA).
		+
		+
		+	{\| border = 1
		+	\|-
		+	!Symptom
		+	!Possible Cause
		+	!Solution
		+	\|-
		+	\|
		+
		+	vPC is in blocking state.
		+	\|
		+
		+	BPDU only sends on a single link of a port-channel. If BA dispute is detected, the entire vPC will be in the blocking state.
		+	\|
		+
		+	Do not enable BA on vPC.
		+	\|}
		+
		+
		+
		+	== VLANs on a vPC moved to suspend state==
		+
		+
		+	VLANs on a vPC may move to the suspend state.
		+
		+
		+	{\| border = 1
		+	\|-
		+	!Symptom
		+	!Possible Cause
		+	!Solution
		+	\|-
		+	\|
		+
		+	VLANs on a vPC moved to suspend state.
		+	\|
		+
		+	VLANs allowed on the vPC have not been allowed on the vPC peer=link.
		+	\|
		+
		+	All VLANs allowed on a vPC must also be allowed on the vPC peer-link. Also, it is recommended that only vPC VLANs are allowed on the vPC peer-link.
		+	\|}
		+
		+
		+
		+	== Hosts with an HSRP Gateway Cannot Access Beyond Their VLAN ==
		+
		+
		+	When HSRP is enabled on both vPC peer devices on a VLAN and hosts on that VLAN set the HSRP as their gateway, they may not able to reach anything outside their own VLAN.
		+
		+	{\| border = 1
		+	\|-
		+	!Symptom
		+	!Possible Cause
		+	!Solution
		+	\|-
		+	\|
		+
		+	Hosts with an HSRP gateway cannot access beyond their VLAN.
		+	\|
		+
		+	If the host gateway mac-address is mapped to the physical MAC address of any one of the vPC peer-devices, packets may get dropped due to the loop prevention mechanism in vPC.
		+	\|
		+
		+	Map the host gateway's mac-address to the HSRP MAC address and not the physical MAC address of any one of the vPC peer-devices. Peer-gateway can be a workaround for this scenario. Please read the configuration guide for peer-gateway for further information before implementing it.
		+	\|}
		+
		+
		+
		+	== Traffic Disrupted when the Primary vPC Device Goes Down ==
		+
		+
		+	Traffic may remain disrupted when the N7K-M132XP-12 module on the primary vpc device goes down.
		+
		+	{\| border = 1
		+	\|-
		+	!Symptom
		+	!Possible Cause
		+	!Solution
		+	\|-
		+	\|
		+
		+	Traffic disrupted when the primary vPC device goes down.
		+	\|
		+
		+	All core facing interfaces and vPC peer-links are configured on a single N7K-M132XP-12 module.
		+	\|
		+
		+	Enable object tracking. With object tracking enabled, all vPC on the primary will shut down. The vPC secondary will take over as the operational primary and all the vPC on the secondary will stay up. As a result, traffic will still be flowing thru the secondary which became operational primary.
		+	\|}

	== See Also ==		== See Also ==

Sdurham: /* Cannot Enable the vPC Feature */

2010-08-18T19:36:06Z

Cannot Enable the vPC Feature

← Older revision		Revision as of 19:36, 18 August 2010
Line 182:		Line 182:
	\|		\|

-	Use the ''' show module ''' command to determine the hardware version of each ~~10/100/1000~~ Ethernet module. The hardwere version must be 1.3 or later to enable the vPC feature.	+	Use the ''' show module ''' command to determine the hardware version of each N7K-M132XP-12 Ethernet module. The hardwere version must be 1.3 or later to enable the vPC feature.
	\|}		\|}

Line 204:		Line 204:
	2 4.1(5) 1.2		2 4.1(5) 1.2
	3 4.1(5) 1.0 '''>>> Must be 1.3 or later.'''		3 4.1(5) 1.0 '''>>> Must be 1.3 or later.'''
-

	== See Also ==		== See Also ==

Sdurham: /* Verifying vPCs Using the CLI */ review edits

2010-08-18T19:34:49Z

Verifying vPCs Using the CLI: review edits

← Older revision		Revision as of 19:34, 18 August 2010
Line 96:		Line 96:
	1. Use the '''show running-config vpc''' command to verify the vPC configuration.		1. Use the '''show running-config vpc''' command to verify the vPC configuration.

-	2. Use the '''show vpc ~~consistency-parameters interface~~''' to ~~verify that~~ the vPC ~~peers have the required identical configurations~~.	+	2. Use the '''show vpc ''' command to check the status of vPC.

-	3. Use the '''show vpc ~~brief~~ ''' command to ~~verify that none~~ of the vPC ~~interfaces are in suspend mode~~.	+	3. Use the '''show vpc peer-keepalive''' command to check the status of the vPC peer-keepalive link.

-	4. Use the '''show vpc ~~peer~~-~~keepalive~~''' command to verify ~~the status of~~ the vPC peers.	+	4. Use the '''show vpc consistency-parameters''' command to verify that both the vPC peers have the identical type-1 parameters.

-	5. Use the '''show ~~cfs status~~''' ~~commands~~ to ~~verify that distribution over Ethernet is enabled~~.	+	5. Use the '''show port-channel summary''' command toverify the members in the port channel are mapped to the vPC.

-	6. If you enable STP, use the '''show spanning-tree''' command on both sides of the vPC peer link to verify that the following STP parameters are identical:	+	6. Use the '''show cfs status''' commands to verify that distribution over Ethernet is enabled.
		+
		+	7. If you enable STP, use the '''show spanning-tree''' command on both sides of the vPC peer link to verify that the following STP parameters are identical:

	* BPDU Filter		* BPDU Filter

Sdurham: /* Initial Troubleshooting Checklist */ applied review edits

2010-08-18T19:30:23Z

Initial Troubleshooting Checklist: applied review edits

← Older revision		Revision as of 19:30, 18 August 2010
Line 44:		Line 44:
	\|		\|

-	~~Verify that~~ the vPC ~~peer~~ link ~~exists between two 10-Gigabit Ethernet ports in dedicated mode~~.	+	Is the vPC keepalive link mapped to a separate vrf? If not, it will be mapped to the management vrf by default. In this case, do you have a management switch connect to the management ports on both vPC peer devices?
	\|		\|
	\|-		\|-
	\|		\|

-	Verify that ~~you have attached all~~ vPC ~~devices using port channels~~ to ~~both vPC peer devices~~.	+	Verify that the vPC peer-link is configured on a N7K-M132XP-12. It is recommended to have at least two N7K-M132XP-12 for redundancy.
	\|		\|
	\|-		\|-
	\|		\|

-	Verify that ~~you have configured~~ the peer-keepalive ~~link before you configure~~ the vPC peer link ~~or the peer link will not come up~~.	+	Verify that both the source and destination IP addresses used for the peer-keepalive messages are reachable from the VRF associated with the vPC peer-keepalive link.
	\|		\|
	\|-		\|-
	\|		\|

-	Verify that ~~you have first configured a port channel on each device and then configure~~ the vPC ~~domain~~.	+	Verify that the peer-keepalive link is up or the vPC peer-link will not come up.
	\|		\|
	\|-		\|-
	\|		\|

-	Verify that ~~you have manually~~ configured ~~the STP root, the~~ Layer ~~3 VLAN network interface, and HSRP active (if required) to conform to the primary/secondary mapping of each of the~~ vPC ~~peer devices~~.	+	Verify that the vPC peer-link is configured as a Layer 2 Port Channel trunk which only allows vPC VLANs.
	\|		\|
	\|-		\|-
	\|		\|

-	Verify that ~~you have configured a VLAN network interface on each peer device and~~ that the ~~interface is connected~~ to the ~~same VLAN on each~~ device~~. Also, each VLAN interface must be in~~ the ~~same administrative and operational mode~~.	+	Verify that the vPC number that you assigned to the port channel that connects to the downstream device from the vPC peer device is identical on both vPC peer devices.
	\|		\|
	\|-		\|-
	\|		\|

-	~~Verify~~ that both ~~the source and destination IP addresses used for the peer-keepalive messages are unique in your network and these IP addresses are reachable from the VRF associated with the~~ vPC peer~~-keepalive link~~.	+	If you manually configured the system priority, verify that you assigned the same priority value on both vPC peer devices.
	\|		\|
	\|-		\|-
	\|		\|

-	~~If you manually configured~~ the ~~system priority,~~ verify that ~~you assigned the same priority value on~~ both ~~vPC peer devices. If the~~ vPC peer devices have ~~different system priority values, vPC will not come up~~.	+	Check the '''show vpc consistency-parameters''' command to verify that both vPC peer devices have identical type-1 parameters.
	\|		\|
	\|-		\|-
	\|		\|

-	Verify that the vPC ~~number that you assigned to~~ the ~~port channel that connects to the downstream device from~~ the vPC ~~peer device~~ is ~~identical on both vPC peer devices~~.	+	Verify that the primary vPC is the primary STP root and the secondary vPC is the secondary STP root.
	\|		\|
	\|-		\|-

Sdurham at 14:18, 14 July 2010

2010-07-14T14:18:48Z

← Older revision		Revision as of 14:18, 14 July 2010
Line 5:		Line 5:
	\|aling="center"\|'''Guide Contents'''		\|aling="center"\|'''Guide Contents'''
	\|-		\|-
-	\|[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Overview\|Troubleshooting Overview]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Installs, Upgrades, and Reboots\|Troubleshooting Installs, Upgrades, and Reboots]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Licensing\|Troubleshooting Licensing]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting VDCs\|Troubleshooting VDCs]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting CFS\|Troubleshooting CFS]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Ports\|Troubleshooting Ports]]<br>''Troubleshooting vPCs{this section}''<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting VLANs\|Troubleshooting VLANs]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting STP\|Troubleshooting STP]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Routing\|Troubleshooting Routing]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting WCCP\|Troubleshooting WCCP]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Before Contacting Technical Support\|Before Contacting Technical Support]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Tools and Methodology\|Troubleshooting Tools and Methodology]]	+	\|[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Overview\|Troubleshooting Overview]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Installs, Upgrades, and Reboots\|Troubleshooting Installs, Upgrades, and Reboots]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Licensing\|Troubleshooting Licensing]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting VDCs\|Troubleshooting VDCs]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting CFS\|Troubleshooting CFS]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Ports\|Troubleshooting Ports]]<br>''Troubleshooting vPCs {this section}''<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting VLANs\|Troubleshooting VLANs]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting STP\|Troubleshooting STP]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Routing\|Troubleshooting Routing]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting WCCP\|Troubleshooting WCCP]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Memory\|Troubleshooting Memory]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Before Contacting Technical Support\|Before Contacting Technical Support]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Tools and Methodology\|Troubleshooting Tools and Methodology]]
	\|}		\|}

Grrosser: fix links

2010-05-21T22:11:12Z

fix links

← Older revision		Revision as of 22:11, 21 May 2010
Line 5:		Line 5:
	\|aling="center"\|'''Guide Contents'''		\|aling="center"\|'''Guide Contents'''
	\|-		\|-
-	\|[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide~~, Release 4.x~~ -- Troubleshooting Overview\|Troubleshooting Overview]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide~~, Release 4.x~~ -- Troubleshooting Installs, Upgrades, and Reboots\|Troubleshooting Installs, Upgrades, and Reboots]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide~~, Release 4.x~~ -- Troubleshooting Licensing\|Troubleshooting Licensing]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide~~, Release 4.x~~ -- Troubleshooting VDCs\|Troubleshooting VDCs]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide~~, Release 4.x~~ -- Troubleshooting CFS\|Troubleshooting CFS]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide~~, Release 4.x~~ -- Troubleshooting Ports\|Troubleshooting Ports]]<br>''Troubleshooting vPCs{this section}''<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide~~, Release 4.x~~ -- Troubleshooting VLANs\|Troubleshooting VLANs]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide~~, Release 4.x~~ -- Troubleshooting STP\|Troubleshooting STP]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide~~, Release 4.x~~ -- Troubleshooting Routing\|Troubleshooting Routing]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide~~, Release 4.x~~ -- Troubleshooting WCCP\|Troubleshooting WCCP]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide~~, Release 4.x~~ -- Before Contacting Technical Support\|Before Contacting Technical Support]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide~~, Release 4.x~~ -- Troubleshooting Tools and Methodology\|Troubleshooting Tools and Methodology]]	+	\|[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Overview\|Troubleshooting Overview]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Installs, Upgrades, and Reboots\|Troubleshooting Installs, Upgrades, and Reboots]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Licensing\|Troubleshooting Licensing]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting VDCs\|Troubleshooting VDCs]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting CFS\|Troubleshooting CFS]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Ports\|Troubleshooting Ports]]<br>''Troubleshooting vPCs{this section}''<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting VLANs\|Troubleshooting VLANs]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting STP\|Troubleshooting STP]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Routing\|Troubleshooting Routing]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting WCCP\|Troubleshooting WCCP]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Before Contacting Technical Support\|Before Contacting Technical Support]]<br>[[Cisco Nexus 7000 Series NX-OS Troubleshooting Guide -- Troubleshooting Tools and Methodology\|Troubleshooting Tools and Methodology]]
	\|}		\|}