Category Archive Nexus

VDC_MGR-2-VDC_BAD: vdc_mgr: There has been a failure at res_mgr

Error Message: VDC_MGR-2-VDC_BAD: vdc_mgr: There has been a failure at res_mgr Explanation: You cannot create a VDC because not enough resources are available based on the template configuration. If no template is used, a default template is applied. Reco…

Switch Profiles in Nexus 5000

Information About Switch Profiles Several applications require consistent configuration across Cisco Nexus 5000 Series switches in the network. For example, with a Virtual Port Channel (vPC), you must have identical configurations. Mismatched configuratio…

Link pause (flow control) not enabled on back to back Nexus 5000 switch links

When link pause (flow control) is not enabled on back-to-back Nexus 5000 switch links, packets are dropped while sending traffic on a no-drop class. ======================================================================================================= Po…

Traffic not queued or prioritized correctly on Nexus 2148, Nexus 2232, and Nexus 2248

After configuring all three types of policy maps (QoS, Network-QoS, and Queuing), the traffic is not queued or prioritized correctly on Nexus 2148, Nexus 2232, and Nexus 2248 switches. =================================================== Possible Cause The…

MTU for “class-default” value is 1500 when jumbo MTU configured

When the configuration for the network-qos policy-map sets the class-default to jumbo MTU, the show queuing interface command indicates that the MTU for class-default is 1500. ===================================================================== Possible …

Cannot pass frame size larger than 2300 bytes through switch

Although the jumbo MTU has been configured for class-default, you cannot pass a frame size larger than 2300 bytes through the Nexus 5000 switch and the Nexus 2000 FEX. ============================================================ Possible Cause The CoS val…

Licensing Installation Issues

Error Message: LICMGR-3-LOG_LIC_INVALID_HOSTID: Explanation: The feature has a license with an invalid license Host ID. This can happen if a supervisor module with licensed features for one system is installed on another system. Recommended Action: Reinst…

Unable to configure vPC

In this blog you will see the solution when you are configuring the VPC , the Nexus not allow to configure the vPC. Some of the possible cause has been discussed here : Possible Cause vPC is not enabled or is not supported in the NX-OS release of software…

Configuring SNMP on Nexus Devices

Step1. Create object group for the interface used by SNMP server to poll the device. In this example we use the IP address of management interface. We have given the name snmp-Interface to management interface. It is basically a IP to name mapping.  …

Configuring Fabricpath

N7K1 ( config) # install feature-set fabric-path N7K1 ( config) # feature-set fabric-path   N7K1 ( config) # Interface vlan 10 N7K1 ( config-if) # mode fabric-path   N7K1 ( config) # Interface e1/4 ( on Fabric-path Core-ports) N7K1 ( config-if) # switch…