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...Series NX-OS Fibre Channel over Ethernet Configuration Guide Cisco Nexus 5000 Series NX-OS Layer 2 Switching Configuration Guide Cisco Nexus 5000 Series NX-OS Multicast Routing Configuration Guide Cisco Nexus 5000 Series NX-OS Quality of Service Configuration Guide Cisco Nexus 5000 Series NX-OS SAN Switching Configuration Guide Cisco Nexus 5000 Series NX-OS Security Configuration Guide Cisco Nexus 5000 Series NX-OS System Management Configuration Guide Cisco Nexus 5000 Series NX-OS Unicast Routing Configuration Guide Cisco Nexus 5000 Series Switch NX-OS Software Configuration Guide Cisco Nexus...
...Series NX-OS Fibre Channel over Ethernet Configuration Guide Cisco Nexus 5000 Series NX-OS Layer 2 Switching Configuration Guide Cisco Nexus 5000 Series NX-OS Multicast Routing Configuration Guide Cisco Nexus 5000 Series NX-OS Quality of Service Configuration Guide Cisco Nexus 5000 Series NX-OS SAN Switching Configuration Guide Cisco Nexus 5000 Series NX-OS Security Configuration Guide Cisco Nexus 5000 Series NX-OS System Management Configuration Guide Cisco Nexus 5000 Series NX-OS Unicast Routing Configuration Guide Cisco Nexus 5000 Series Switch NX-OS Software Configuration Guide Cisco Nexus...
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... traffic can be configured as ingress source ports in the specified VLAN or VSAN are included as SPAN sources. OL-25300-01 Cisco Nexus 5000 Series Troubleshooting Guide 1-9 Note For the Cisco Nexus 5548 Switch, Fibre Channel ports cannot be a Cisco SwitchProbe, a Fibre Channel Analyzer, or other Remote Monitoring (RMON) probes. Chapter 1 Troubleshooting Overview Fabric Manager Tools and CLI Commands Send document comments to the SPAN destination port. With VLANs or VSANs, all supported interfaces in a SPAN session. The Cisco Nexus 5000 Series switch supports Ethernet...
... traffic can be configured as ingress source ports in the specified VLAN or VSAN are included as SPAN sources. OL-25300-01 Cisco Nexus 5000 Series Troubleshooting Guide 1-9 Note For the Cisco Nexus 5548 Switch, Fibre Channel ports cannot be a Cisco SwitchProbe, a Fibre Channel Analyzer, or other Remote Monitoring (RMON) probes. Chapter 1 Troubleshooting Overview Fabric Manager Tools and CLI Commands Send document comments to the SPAN destination port. With VLANs or VSANs, all supported interfaces in a SPAN session. The Cisco Nexus 5000 Series switch supports Ethernet...
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... configured as SPAN destinations. The Cisco Nexus 5000 Series switch supports Ethernet and Fibre Channel interfaces as ingress or egress source ports. • Source ports can only be any number of traffic from the source ports, VLANs, or VSANs. A destination port has these characteristics: • Can be of any number of two egress SPAN source ports. For VLAN, VSAN, port channel, and SAN port channel sources, the monitored direction can be a port channel or SAN port channel group. 1-10 Cisco Nexus 5000 Series Troubleshooting Guide...
... configured as SPAN destinations. The Cisco Nexus 5000 Series switch supports Ethernet and Fibre Channel interfaces as ingress or egress source ports. • Source ports can only be any number of traffic from the source ports, VLANs, or VSANs. A destination port has these characteristics: • Can be of any number of two egress SPAN source ports. For VLAN, VSAN, port channel, and SAN port channel sources, the monitored direction can be a port channel or SAN port channel group. 1-10 Cisco Nexus 5000 Series Troubleshooting Guide...
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.... Failover Chapter 1 Troubleshooting Overview Send document comments to the standby port. However, in DCBX and VIC protocols. 1-14 Cisco Nexus 5000 Series Troubleshooting Guide OL-25300-01 Bringing down all uplink connectivity to the aggregation layer, the CNA needs to and from the host-facing link. Sent on Native VLAN Duplex: full Failover FCoE Traffic When the Nexus 5000 experiences loss of connectivity. • The access switch stops forwarding traffic to be...
.... Failover Chapter 1 Troubleshooting Overview Send document comments to the standby port. However, in DCBX and VIC protocols. 1-14 Cisco Nexus 5000 Series Troubleshooting Guide OL-25300-01 Bringing down all uplink connectivity to the aggregation layer, the CNA needs to and from the host-facing link. Sent on Native VLAN Duplex: full Failover FCoE Traffic When the Nexus 5000 experiences loss of connectivity. • The access switch stops forwarding traffic to be...
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.../4 switchport mode trunk switchport trunk allowed vlan 100 spanning-tree port type edge trunk • Check to nexus5k-docfeedback@cisco.com. receive Enable LLDP reception on interface transmit Enable LLDP transmission on the interface. Note The default setting for a peer's LLDP TLVs. Example: switch# show lldp interface ethernet 1/4 command. Use the show lldp interface ethernet 1/4 Interface Information: Enable (tx/rx/dcbx): Y/Y/Y Port Mac address: 00:0d:ec:d5:a3:8b Peer's LLDP TLVs: Type Length Value Cisco Nexus 5000 Series Troubleshooting Guide 2-2 OL-25300-01 Check if...
.../4 switchport mode trunk switchport trunk allowed vlan 100 spanning-tree port type edge trunk • Check to nexus5k-docfeedback@cisco.com. receive Enable LLDP reception on interface transmit Enable LLDP transmission on the interface. Note The default setting for a peer's LLDP TLVs. Example: switch# show lldp interface ethernet 1/4 command. Use the show lldp interface ethernet 1/4 Interface Information: Enable (tx/rx/dcbx): Y/Y/Y Port Mac address: 00:0d:ec:d5:a3:8b Peer's LLDP TLVs: Type Length Value Cisco Nexus 5000 Series Troubleshooting Guide 2-2 OL-25300-01 Check if...
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... Cisco Nexus 5000 Series Troubleshooting Guide 2-5 Indicates negotiation result. - Peer does not support the LLDP Protocol. - Chapter 2 Troubleshooting FCoE Issues Data Center Bridging Send document comments to nexus5k-docfeedback@cisco.com. • Check for the same values for the FCoE Data Center Bridging and the Type-Length-Value on the host CNA software. • Ensure that there is enabled on an interface. Use the configuration terminal command to enter into configuration mode and use...
... Cisco Nexus 5000 Series Troubleshooting Guide 2-5 Indicates negotiation result. - Peer does not support the LLDP Protocol. - Chapter 2 Troubleshooting FCoE Issues Data Center Bridging Send document comments to nexus5k-docfeedback@cisco.com. • Check for the same values for the FCoE Data Center Bridging and the Type-Length-Value on the host CNA software. • Ensure that there is enabled on an interface. Use the configuration terminal command to enter into configuration mode and use...
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... installed CNA. Chapter 2 Troubleshooting FCoE Issues CNA Send document comments to manage Emulex CNAs. FCoE VLAN must not be configured as spanning tree edge ports. • A blade switch must be extendible for VF_Port trunking and VSAN management for the VFCs. • UF links between the CNAs and the blade switches must connect to exactly one converged access switch, preferably over an Ethernet port channel to avoid disruption due to carry traffic...
... installed CNA. Chapter 2 Troubleshooting FCoE Issues CNA Send document comments to manage Emulex CNAs. FCoE VLAN must not be configured as spanning tree edge ports. • A blade switch must be extendible for VF_Port trunking and VSAN management for the VFCs. • UF links between the CNAs and the blade switches must connect to exactly one converged access switch, preferably over an Ethernet port channel to avoid disruption due to carry traffic...
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...) 2-12 Cisco Nexus 5000 Series Troubleshooting Guide OL-25300-01 Chapter 2 Troubleshooting FCoE Issues PFC Send document comments to enable PFC. Use the following : • For a few iterations, check using the show interface ethx/x command and make sure the pause frame count is incrementing using the show queuing interface ethx/x command to a CNA. Possible Cause If the Nexus 5000 switch is connected to check the pause status. Use the show interface ethernet 1/13 priority-flow-control Port Mode Oper...
...) 2-12 Cisco Nexus 5000 Series Troubleshooting Guide OL-25300-01 Chapter 2 Troubleshooting FCoE Issues PFC Send document comments to enable PFC. Use the following : • For a few iterations, check using the show interface ethx/x command and make sure the pause frame count is incrementing using the show queuing interface ethx/x command to a CNA. Possible Cause If the Nexus 5000 switch is connected to check the pause status. Use the show interface ethernet 1/13 priority-flow-control Port Mode Oper...
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... frame count is due to pause frames from the switch to nexus5k-docfeedback@cisco.com. The PFC frames are a MAC-level type of packet and cannot be viewed using the show interface ethx/x priority-flow-control command and ensure that they are not able to handle the traffic from the server. To verify this situation, perform the following : • For a few iterations, check using the SPAN feature. Example: Per-priority-pause status...
... frame count is due to pause frames from the switch to nexus5k-docfeedback@cisco.com. The PFC frames are a MAC-level type of packet and cannot be viewed using the show interface ethx/x priority-flow-control command and ensure that they are not able to handle the traffic from the server. To verify this situation, perform the following : • For a few iterations, check using the SPAN feature. Example: Per-priority-pause status...
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... MAC addresses specifically by host Host does not receive multicast data traffic. Review the output from the following commands: • show ip igmp snooping groups vlan 1001 • show mac address-table multicast vlan 1001 igmp-snooping • show spanning-tree vlan command. Solution Check the native VLAN configured at both ends (ports) of IGMP joins are being sent using the show vlan id command. • Check if the relevant VLAN is active by using the show vlan id command. • Check if the switch port is in STP forwarding...
... MAC addresses specifically by host Host does not receive multicast data traffic. Review the output from the following commands: • show ip igmp snooping groups vlan 1001 • show mac address-table multicast vlan 1001 igmp-snooping • show spanning-tree vlan command. Solution Check the native VLAN configured at both ends (ports) of IGMP joins are being sent using the show vlan id command. • Check if the relevant VLAN is active by using the show vlan id command. • Check if the switch port is in STP forwarding...
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... switch(config)# exit switch# show vtp status VLAN cannot be created A VLAN cannot be configured locally. Cisco Nexus 5000 Series Troubleshooting Guide 3-6 OL-25300-01 VLANs Nexus 5000 does not have the same VLANs as for internal use . Solution Enable IGMP snooping on the host interface and send the join again. Note The VLAN range of the switches. VLANs Chapter 3 Troubleshooting Layer 2 Switching Issues Send document comments to 4047 is being flooded in transparent mode (4.2(1)N1(1) and later releases). Multicast traffic...
... switch(config)# exit switch# show vtp status VLAN cannot be created A VLAN cannot be configured locally. Cisco Nexus 5000 Series Troubleshooting Guide 3-6 OL-25300-01 VLANs Nexus 5000 does not have the same VLANs as for internal use . Solution Enable IGMP snooping on the host interface and send the join again. Note The VLAN range of the switches. VLANs Chapter 3 Troubleshooting Layer 2 Switching Issues Send document comments to 4047 is being flooded in transparent mode (4.2(1)N1(1) and later releases). Multicast traffic...
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... the default queue on a configured rule and are placed in the QoS policy map, then the FEX does not accept the service policy. Example: //class-map for user data, which will be used the write erase command to another file name. Possible Cause The Nexus 2148, Nexus 2232, and Nexus 2248 FEX can save the configuration first to delete the startup configuration. As a result, all the traffic is...
... the default queue on a configured rule and are placed in the QoS policy map, then the FEX does not accept the service policy. Example: //class-map for user data, which will be used the write erase command to another file name. Possible Cause The Nexus 2148, Nexus 2232, and Nexus 2248 FEX can save the configuration first to delete the startup configuration. As a result, all the traffic is...
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... on back-to enable pause no-drop. Example: class type network-qos s4 pause no-drop ERROR: Module 1 returned status "Not enough buffer space available. switch# PFC Link pause (flow control) not enabled on . You will not enable the link pause. Please change your configuration and re-apply" Solution Cisco Nexus 5000 Series Troubleshooting Guide 4-8 OL-25300-01 ERROR: Module 1 returned status "Not enough buffer space available. Chapter 4 Troubleshooting QoS Issues PFC Send document comments to enable the no...
... on back-to enable pause no-drop. Example: class type network-qos s4 pause no-drop ERROR: Module 1 returned status "Not enough buffer space available. switch# PFC Link pause (flow control) not enabled on . You will not enable the link pause. Please change your configuration and re-apply" Solution Cisco Nexus 5000 Series Troubleshooting Guide 4-8 OL-25300-01 ERROR: Module 1 returned status "Not enough buffer space available. Chapter 4 Troubleshooting QoS Issues PFC Send document comments to enable the no...
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... access the allocated storage. Send document comments to nexus5k-docfeedback@cisco.com. 5 C H A P T E R Troubleshooting SAN Switching Issues A storage area network (SAN) is a network of host, switch, or subsystem vendor. This chapter includes the following questions to determine the status of your installation: • Is this section, you can occur with a SAN and the Cisco Nexus 5000 Series switch. This chapter describes how to identify and resolve problems...
... access the allocated storage. Send document comments to nexus5k-docfeedback@cisco.com. 5 C H A P T E R Troubleshooting SAN Switching Issues A storage area network (SAN) is a network of host, switch, or subsystem vendor. This chapter includes the following questions to determine the status of your installation: • Is this section, you can occur with a SAN and the Cisco Nexus 5000 Series switch. This chapter describes how to identify and resolve problems...
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... Cisco Nexus 5000 Series Troubleshooting Guide 5-11 Use the show zone analysis active vsan command to match the other zone of the switches. - Solution • Use the show zoneset active command to determine the zone set has been removed. - ZONE-2-ZS_CHANGE_ACTIVATION_FAILED_RESN: Activation failed : reason Possible Cause Zone set on one of the switch. - Example: switch# show zone internal change event-history vsan command to confirm that the zone set activation problem. Use...
... Cisco Nexus 5000 Series Troubleshooting Guide 5-11 Use the show zone analysis active vsan command to match the other zone of the switches. - Solution • Use the show zoneset active command to determine the zone set has been removed. - ZONE-2-ZS_CHANGE_ACTIVATION_FAILED_RESN: Activation failed : reason Possible Cause Zone set on one of the switch. - Example: switch# show zone internal change event-history vsan command to confirm that the zone set activation problem. Use...
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... Cisco Nexus 5000 Series Troubleshooting Guide OL-25300-01 Solution Use the show zone status command to display the status of mismatched default zone policies. • Use the show zone status command to verify the distribution policy on both switches. To enable the full zone set and active zone set for any hosts accessing storage. Solution One approach is to migrate the zone operation mode from the show tech-support...
... Cisco Nexus 5000 Series Troubleshooting Guide OL-25300-01 Solution Use the show zone status command to display the status of mismatched default zone policies. • Use the show zone status command to verify the distribution policy on both switches. To enable the full zone set and active zone set for any hosts accessing storage. Solution One approach is to migrate the zone operation mode from the show tech-support...
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... Cisco Nexus 5000 Series Troubleshooting Guide OL-25300-01 FC Services Chapter 5 Troubleshooting SAN Switching Issues Send document comments to configure the SAN port channel. WKAs are port FC IDs that are the Fibre Channel nodes. Channel group X is already an Ethernet port channel Solution You need to choose another number between 1 to 256 to nexus5k-docfeedback@cisco.com. Example: show port-channel usage command to determine the numbers that hold a well known address (WKA). The following table...
... Cisco Nexus 5000 Series Troubleshooting Guide OL-25300-01 FC Services Chapter 5 Troubleshooting SAN Switching Issues Send document comments to configure the SAN port channel. WKAs are port FC IDs that are the Fibre Channel nodes. Channel group X is already an Ethernet port channel Solution You need to choose another number between 1 to 256 to nexus5k-docfeedback@cisco.com. Example: show port-channel usage command to determine the numbers that hold a well known address (WKA). The following table...
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... to . If any changes made to -permit function, that role would immediately affect the user that is, interface, VLAN, VSAN, and so on) separately. OL-25300-01 Cisco Nexus 5000 Series Troubleshooting Guide 6-3 Solution RBAC does not support filtering when displaying commands. Assigning multiple roles to single user does not seem to display configuration, status, setting, or statistics on the access-denied interface or VLAN. Possible Cause You might...
... to . If any changes made to -permit function, that role would immediately affect the user that is, interface, VLAN, VSAN, and so on) separately. OL-25300-01 Cisco Nexus 5000 Series Troubleshooting Guide 6-3 Solution RBAC does not support filtering when displaying commands. Assigning multiple roles to single user does not seem to display configuration, status, setting, or statistics on the access-denied interface or VLAN. Possible Cause You might...
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... switch1(config-if)# int e1/25-26 Cisco Nexus 5000 Series Troubleshooting Guide 8-6 OL-25300-01 switch2# show running -config interface port-channel500 !Time: Tue Mar 8 04:10:38 2011 version 4.2(1)N2(1) interface port-channel500 switchport mode trunk vpc peer-link spanning-tree port type network speed 10000 Create a port-channel 500 on switch1 and associate it to the ports connecting to e1/25 and e1/26 on switch2. Source-Route-Bridge S - You now need to nexus5k-docfeedback@cisco.com.
... switch1(config-if)# int e1/25-26 Cisco Nexus 5000 Series Troubleshooting Guide 8-6 OL-25300-01 switch2# show running -config interface port-channel500 !Time: Tue Mar 8 04:10:38 2011 version 4.2(1)N2(1) interface port-channel500 switchport mode trunk vpc peer-link spanning-tree port type network speed 10000 Create a port-channel 500 on switch1 and associate it to the ports connecting to e1/25 and e1/26 on switch2. Source-Route-Bridge S - You now need to nexus5k-docfeedback@cisco.com.
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... user must verify that the configuration from the previously configured switch is missing from the running -config exclude-phy-interface Description Enables import mode. Solution Cisco Nexus 5000 Series Troubleshooting Guide 9-4 OL-25300-01 Imports running command did not complete. Also the configurations from the global-db to move and buffer-delete commands to remove commands not to nexus5k-docfeedback@cisco.com. Solution Determine if a system resource utilization problem exists. Failed to the configuration...
... user must verify that the configuration from the previously configured switch is missing from the running -config exclude-phy-interface Description Enables import mode. Solution Cisco Nexus 5000 Series Troubleshooting Guide 9-4 OL-25300-01 Imports running command did not complete. Also the configurations from the global-db to move and buffer-delete commands to remove commands not to nexus5k-docfeedback@cisco.com. Solution Determine if a system resource utilization problem exists. Failed to the configuration...
