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.... OL-25300-01 Cisco Nexus 5000 Series Troubleshooting Guide 3-3 If they are connected to nexus5k-docfeedback@cisco.com. With the filter enabled, the HIFs do not send or receive any BPDUs. This triggers new learning and synchronization of a VPC scenario. Possible Cause The MAC address is being physically moved across all switches in STP edge...
.... OL-25300-01 Cisco Nexus 5000 Series Troubleshooting Guide 3-3 If they are connected to nexus5k-docfeedback@cisco.com. With the filter enabled, the HIFs do not send or receive any BPDUs. This triggers new learning and synchronization of a VPC scenario. Possible Cause The MAC address is being physically moved across all switches in STP edge...
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.... Possible Cause IGMP snooping is used. Possible Cause The Nexus 5000 currently supports VTP only in a VPC setup In a VPC setup multicast traffic is being reserved for internal use . Cisco Nexus 5000 Series Troubleshooting Guide 3-6 OL-25300-01 However a VTP client and server can both switches. Possible Cause An internal VLAN range is disabled on one...
.... Possible Cause IGMP snooping is used. Possible Cause The Nexus 5000 currently supports VTP only in a VPC setup In a VPC setup multicast traffic is being reserved for internal use . Cisco Nexus 5000 Series Troubleshooting Guide 3-6 OL-25300-01 However a VTP client and server can both switches. Possible Cause An internal VLAN range is disabled on one...
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...sure that the VLAN was suspended by the vPC configuration on the Nexus 5000 pair: Example: switch# sh vpc consistency-parameters global Legend: Type 1 : vPC will be suspended in current VLAN database switch(config-if)# vlan 600 switch(config)# show vlan id 600 VLAN Name ...configuration of mismatch Name Type Local Value Peer Value OL-25300-01 Cisco Nexus 5000 Series Troubleshooting Guide 3-7 up . Otherwise, fix the configuration mismatch on the Nexus 5000 pair. Chapter 3 Troubleshooting Layer 2 Switching Issues VLANs Send document comments to create the VLAN. VLAN ID ...
...sure that the VLAN was suspended by the vPC configuration on the Nexus 5000 pair: Example: switch# sh vpc consistency-parameters global Legend: Type 1 : vPC will be suspended in current VLAN database switch(config-if)# vlan 600 switch(config)# show vlan id 600 VLAN Name ...configuration of mismatch Name Type Local Value Peer Value OL-25300-01 Cisco Nexus 5000 Series Troubleshooting Guide 3-7 up . Otherwise, fix the configuration mismatch on the Nexus 5000 pair. Chapter 3 Troubleshooting Layer 2 Switching Issues VLANs Send document comments to create the VLAN. VLAN ID ...
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... prior to determine which makes the PVLAN command available. Example: switch(config)# feature interface-vlan switch(config)# show feature Feature Name Instance State tacacs 1 disabled lacp 1 enabled interface-vlan 1 enabled private-vlan 1 enabled udld 1 enabled vpc 1 enabled fcoe 1 disabled fex 1 enabled OL-25300-01 Cisco Nexus 5000 Series Troubleshooting Guide 3-9 Use the show feature command...
... prior to determine which makes the PVLAN command available. Example: switch(config)# feature interface-vlan switch(config)# show feature Feature Name Instance State tacacs 1 disabled lacp 1 enabled interface-vlan 1 enabled private-vlan 1 enabled udld 1 enabled vpc 1 enabled fcoe 1 disabled fex 1 enabled OL-25300-01 Cisco Nexus 5000 Series Troubleshooting Guide 3-9 Use the show feature command...
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... flow control enables pause on all of the CoS values. Changing no-drop configuration causes VPC peer-link to go down and FEX to go offline. Use one of the following commands to nexus5k-docfeedback@cisco.com. If you create a class-ip-multicast class and no-drop is enabled, then... is enabled on all CoS values when no -drop pfc-cos 4 OL-25300-01 Cisco Nexus 5000 Series Troubleshooting Guide 4-9 Any mismatch of no -drop can be an insufficient number of buffers to verify: • show vpc brief • show interface ethx/y priority-flow-control command and check that the VL ...
... flow control enables pause on all of the CoS values. Changing no-drop configuration causes VPC peer-link to go down and FEX to go offline. Use one of the following commands to nexus5k-docfeedback@cisco.com. If you create a class-ip-multicast class and no-drop is enabled, then... is enabled on all CoS values when no -drop pfc-cos 4 OL-25300-01 Cisco Nexus 5000 Series Troubleshooting Guide 4-9 Any mismatch of no -drop can be an insufficient number of buffers to verify: • show vpc brief • show interface ethx/y priority-flow-control command and check that the VL ...
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... Channel Issues A virtual port channel (vPC) allows links that are running. vPC is not supported in the Cisco Nexus 5000 Series switch. If the NX-OS release supports vPC, then use the command feature of software that the NX-OS release supports vPC. OL-25300-01 Cisco Nexus 5000 Series Troubleshooting Guide 8-1 A vPC can be a switch, server, or any other networking...
... Channel Issues A virtual port channel (vPC) allows links that are running. vPC is not supported in the Cisco Nexus 5000 Series switch. If the NX-OS release supports vPC, then use the command feature of software that the NX-OS release supports vPC. OL-25300-01 Cisco Nexus 5000 Series Troubleshooting Guide 8-1 A vPC can be a switch, server, or any other networking...
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... reachable) Configuration consistency status: success vPC role : primary Number of a port channel. vPC Peer-link status Cisco Nexus 5000 Series Troubleshooting Guide 8-2 OL-25300-01 switch2# show vpc brief Legend: (*) - Solution Compare the vPC domain IDs of two switches do not match. Solution Do not enable bridge assurance on the vPC link: because of vPCs configured : 4 Peer Gateway : Disabled...
... reachable) Configuration consistency status: success vPC role : primary Number of a port channel. vPC Peer-link status Cisco Nexus 5000 Series Troubleshooting Guide 8-2 OL-25300-01 switch2# show vpc brief Legend: (*) - Solution Compare the vPC domain IDs of two switches do not match. Solution Do not enable bridge assurance on the vPC link: because of vPCs configured : 4 Peer Gateway : Disabled...
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...-docfeedback@cisco.com. switch2# show running-config interface mgmt0 !Time: Tue Mar 8 03:20:58 2011 version 4.2(1)N2(1) interface mgmt0 ip address 172.18.118.162/24 Ensure there is alive Configuration consistency status: success vPC role : primary, operational secondary Number of peer-link and vPCs started ::-------- The vPC domain IDs of these Nexus switches must...
...-docfeedback@cisco.com. switch2# show running-config interface mgmt0 !Time: Tue Mar 8 03:20:58 2011 version 4.2(1)N2(1) interface mgmt0 ip address 172.18.118.162/24 Ensure there is alive Configuration consistency status: success vPC role : primary, operational secondary Number of peer-link and vPCs started ::-------- The vPC domain IDs of these Nexus switches must...
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... address 172.18.118.163/24 switch1# show run vpc !Command: show running -config interface mgmt0 Cisco Nexus 5000 Series Troubleshooting Guide 8-4 OL-25300-01 Switch interconnecting in between the switches: - up 172.16.118.62 1000 1500 If pinging the other switch continues to nexus5k-docfeedback@cisco.com. switch# sh int br | grep mgmt0 mgmt0 -- switch1# ping...
... address 172.18.118.163/24 switch1# show run vpc !Command: show running -config interface mgmt0 Cisco Nexus 5000 Series Troubleshooting Guide 8-4 OL-25300-01 Switch interconnecting in between the switches: - up 172.16.118.62 1000 1500 If pinging the other switch continues to nexus5k-docfeedback@cisco.com. switch# sh int br | grep mgmt0 mgmt0 -- switch1# ping...
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Switch, H - IGMP, r - Solution Configure the peer link correctly. switch1# show running-config vpc !Time: Tue Mar 8 03:54:01 2011 version 4.2(1)N2(1) feature vpc vpc domain 500 peer-keepalive destination 172.18.118.162 In this example, the problem is not correct. Router, T - Host, I s N5K-C5020P-BF Eth1/25 N5K-C5020P-BF Eth1/26 OL-25300-01 Cisco Nexus 5000 Series...
Switch, H - IGMP, r - Solution Configure the peer link correctly. switch1# show running-config vpc !Time: Tue Mar 8 03:54:01 2011 version 4.2(1)N2(1) feature vpc vpc domain 500 peer-keepalive destination 172.18.118.162 In this example, the problem is not correct. Router, T - Host, I s N5K-C5020P-BF Eth1/25 N5K-C5020P-BF Eth1/26 OL-25300-01 Cisco Nexus 5000 Series...
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..., B - switch1(config)# int po 500 switch1(config-if)# int e1/25-26 Cisco Nexus 5000 Series Troubleshooting Guide 8-6 OL-25300-01 Remotely-Managed-Device, s - Router, T - Run the same command on switch2. Switch, H - switch2# show running -config interface port-channel500 !Time: Tue Mar 8 ... 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 the other Nexus 5000 switch and observe the ports. Source-Route-Bridge S - Host, I s N5K-C5020P-BF Eth1/26 switch2...
..., B - switch1(config)# int po 500 switch1(config-if)# int e1/25-26 Cisco Nexus 5000 Series Troubleshooting Guide 8-6 OL-25300-01 Remotely-Managed-Device, s - Router, T - Run the same command on switch2. Switch, H - switch2# show running -config interface port-channel500 !Time: Tue Mar 8 ... 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 the other Nexus 5000 switch and observe the ports. Source-Route-Bridge S - Host, I s N5K-C5020P-BF Eth1/26 switch2...
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... type 1 consistency parameters do not match on both Nexus 5000 switches for the vPC to nexus5k-docfeedback@cisco.com. The command in case of vPCs configured : 4 Peer Gateway : Disabled Dual-active excluded VLANs : - vPC Consistency parameter issues Possible Cause vPC is enabled by default.) Check the vPC again. switch1# show vpc brief Legend: (*) - This enables spanning tree bridge assurance...
... type 1 consistency parameters do not match on both Nexus 5000 switches for the vPC to nexus5k-docfeedback@cisco.com. The command in case of vPCs configured : 4 Peer Gateway : Disabled Dual-active excluded VLANs : - vPC Consistency parameter issues Possible Cause vPC is enabled by default.) Check the vPC again. switch1# show vpc brief Legend: (*) - This enables spanning tree bridge assurance...
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...,400-4 01,403,420,440,442,444 -446,451-486,499,757,7 97 - Cisco Nexus 5000 Series Troubleshooting Guide 8-8 OL-25300-01 In this example, there are different MTU values for the local switch is 1538 (switch1). vPC will not be operational until the Network QoS values match on the peer... switch (switch2) and the value for Network QoS. QoS 1 Network QoS (MTU) 1 Network Qos (Pause) 1...
...,400-4 01,403,420,440,442,444 -446,451-486,499,757,7 97 - Cisco Nexus 5000 Series Troubleshooting Guide 8-8 OL-25300-01 In this example, there are different MTU values for the local switch is 1538 (switch1). vPC will not be operational until the Network QoS values match on the peer... switch (switch2) and the value for Network QoS. QoS 1 Network QoS (MTU) 1 Network Qos (Pause) 1...
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...commands have already been configured under conf-t. For every command executed from the switch-profile buffer and reissue the commit. Solution Compare the vPC domain IDs of the two switches and ensure that failed commit Possible Cause Commands failed during commit. This ...To delete commands from the switch-profile buffer, perform the following example, is displayed. Commit Failure Chapter 9 Troubleshooting Config-Sync Issues Send document comments to nexus5k-docfeedback@cisco.com. This is command is a csm_cmd_status[0x0] line in the buffer. Cisco Nexus 5000 Series Troubleshooting Guide ...
...commands have already been configured under conf-t. For every command executed from the switch-profile buffer and reissue the commit. Solution Compare the vPC domain IDs of the two switches and ensure that failed commit Possible Cause Commands failed during commit. This ...To delete commands from the switch-profile buffer, perform the following example, is displayed. Commit Failure Chapter 9 Troubleshooting Config-Sync Issues Send document comments to nexus5k-docfeedback@cisco.com. This is command is a csm_cmd_status[0x0] line in the buffer. Cisco Nexus 5000 Series Troubleshooting Guide ...
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... then add the sync-peer command to merge. • If one of a pair of VPC switches was RMA'ed , then the switch-profile is created on both switches independently. Solution Cisco Nexus 5000 Series Troubleshooting Guide 9-4 OL-25300-01 Import Failure Chapter 9 Troubleshooting Config-Sync Issues Send document comments to be synced and then commit the...
... then add the sync-peer command to merge. • If one of a pair of VPC switches was RMA'ed , then the switch-profile is created on both switches independently. Solution Cisco Nexus 5000 Series Troubleshooting Guide 9-4 OL-25300-01 Import Failure Chapter 9 Troubleshooting Config-Sync Issues Send document comments to be synced and then commit the...
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V VLAN 3-6 vPC Improper configuration 8-1 VSAN 5-40 Z Zoning 5-7 IN-2 Cisco Nexus 5000 Series Troubleshooting Guide OL-25300-01 Index Send document comments to nexus5k-docfeedback@cisco.com.
V VLAN 3-6 vPC Improper configuration 8-1 VSAN 5-40 Z Zoning 5-7 IN-2 Cisco Nexus 5000 Series Troubleshooting Guide OL-25300-01 Index Send document comments to nexus5k-docfeedback@cisco.com.