vpc trunk flapping

[JuannNino]

Hi I am trying to set up a new vpc between a pair of nexus 93180 and nexus 3172

I was planning to set it up as trunk with no vlans allowed (switchport trunk allowed vlan none) so that I can add vlans once the port channel is up, however it bounces up and down, then I tried creating a new dummy vlan to go through the link, however it doesn't have any traffic so I don't know if it makes any difference.

currently I don't know if it is failing because of the vlan or because of the sfps/fibres.

any clue as to what is happening?

logs below

here are the logs

2021 Mar 3 10:31:04.875 DEVICE %ETHPORT-5-SPEED: Interface Ethernet1/40, operational speed changed to 10 Gbps
2021 Mar 3 10:31:04.875 DEVICE %ETHPORT-5-IF_DUPLEX: Interface Ethernet1/40, operational duplex mode changed to Full
2021 Mar 3 10:31:04.875 DEVICE %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface Ethernet1/40, operational Receive Flow Control state changed to off
2021 Mar 3 10:31:04.875 DEVICE %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface Ethernet1/40, operational Transmit Flow Control state changed to off
2021 Mar 3 10:31:04.887 DEVICE %ETHPORT-5-SPEED: Interface port-channel1001, operational speed changed to 10 Gbps
2021 Mar 3 10:31:04.887 DEVICE %ETHPORT-5-IF_DUPLEX: Interface port-channel1001, operational duplex mode changed to Full
2021 Mar 3 10:31:04.887 DEVICE %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface port-channel1001, operational Receive Flow Control state changed to off
2021 Mar 3 10:31:04.887 DEVICE %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface port-channel1001, operational Transmit Flow Control state changed to off
2021 Mar 3 10:31:04.981 DEVICE %ETH_PORT_CHANNEL-5-PORT_UP: port-channel1001: Ethernet1/40 is up
2021 Mar 3 10:31:04.993 DEVICE %ETH_PORT_CHANNEL-5-FOP_CHANGED: port-channel1001: first operational port changed from none to Ethernet1/40
2021 Mar 3 10:31:04.000 DEVICE %ETHPORT-5-IF_UP: Interface Ethernet1/40 is up in mode trunk
2021 Mar 3 10:31:05.001 DEVICE %ETHPORT-3-IF_ERROR_VLANS_REMOVED: VLANs 3408 on Interface port-channel1001 are removed from suspended state.
2021 Mar 3 10:31:05.015 DEVICE %ETHPORT-5-IF_UP: Interface port-channel1001 is up in mode trunk
2021 Mar 3 10:31:05.480 DEVICE %ETH_PORT_CHANNEL-5-FOP_CHANGED: port-channel1001: first operational port changed from Ethernet1/40 to none
2021 Mar 3 10:31:05.482 DEVICE %ETH_PORT_CHANNEL-5-PORT_DOWN: port-channel1001: Ethernet1/40 is down
2021 Mar 3 10:31:05.600 DEVICE %ETHPORT-5-IF_DOWN_PORT_CHANNEL_MEMBERS_DOWN: Interface port-channel1001 is down (No operational members)
2021 Mar 3 10:31:05.627 DEVICE %ETHPORT-5-IF_DOWN_LINK_FAILURE: Interface Ethernet1/40 is down (Link failure)
2021 Mar 3 10:31:05.628 DEVICE %ETHPORT-5-IF_DOWN_PORT_CHANNEL_MEMBERS_DOWN: Interface port-channel1001 is down (No operational members)
2021 Mar 3 10:31:09.856 DEVICE last message repeated 1 time
2021 Mar 3 10:31:09.856 DEVICE %ETHPORT-5-SPEED: Interface Ethernet1/40, operational speed changed to 10 Gbps
2021 Mar 3 10:31:09.856 DEVICE %ETHPORT-5-IF_DUPLEX: Interface Ethernet1/40, operational duplex mode changed to Full
2021 Mar 3 10:31:09.856 DEVICE %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface Ethernet1/40, operational Receive Flow Control state changed to off
2021 Mar 3 10:31:09.856 DEVICE %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface Ethernet1/40, operational Transmit Flow Control state changed to off
2021 Mar 3 10:31:09.863 DEVICE %ETHPORT-5-SPEED: Interface port-channel1001, operational speed changed to 10 Gbps

here are the 4 transceivers

Ethernet1/40
transceiver is present
type is 10Gbase-SR
name is CISCO-FINISAR
part number is FTLX8574D3BCL-CS
revision is A
serial number is SOMESERIAL
nominal bitrate is 10300 MBit/sec
Link length supported for 50/125um OM2 fiber is 82 m
Link length supported for 62.5/125um fiber is 26 m
Link length supported for 50/125um OM3 fiber is 300 m
cisco id is 3
cisco extended id number is 4
cisco part number is 10-2415-03
cisco product id is SFP-10G-SR
cisco vendor id is V03

SFP Detail Diagnostics Information (internal calibration)
----------------------------------------------------------------------------
Current Alarms Warnings
Measurement High Low High Low
----------------------------------------------------------------------------
Temperature 37.41 C 75.00 C -5.00 C 70.00 C 0.00 C
Voltage 3.30 V 3.63 V 2.97 V 3.46 V 3.13 V
Current 9.02 mA 13.00 mA 4.00 mA 12.50 mA 5.00 mA
Tx Power -2.61 dBm 1.69 dBm -11.30 dBm -1.30 dBm -7.30 dBm
Rx Power -15.22 dBm -- 1.99 dBm -13.97 dBm -1.00 dBm -9.91 dBm
Transmit Fault Count = 0
----------------------------------------------------------------------------
Note: ++ high-alarm; + high-warning; -- low-alarm; - low-warning

Ethernet1/40
transceiver is present
type is 10Gbase-SR
name is CISCO-FINISAR
part number is FTLX8574D3BCL-CS
revision is A
serial number is SOMESERIAL
nominal bitrate is 10300 MBit/sec
Link length supported for 50/125um OM2 fiber is 82 m
Link length supported for 62.5/125um fiber is 26 m
Link length supported for 50/125um OM3 fiber is 300 m
cisco id is 3
cisco extended id number is 4
cisco part number is 10-2415-03
cisco product id is SFP-10G-SR
cisco vendor id is V03

SFP Detail Diagnostics Information (internal calibration)
----------------------------------------------------------------------------
Current Alarms Warnings
Measurement High Low High Low
----------------------------------------------------------------------------
Temperature 37.65 C 75.00 C -5.00 C 70.00 C 0.00 C
Voltage 3.32 V 3.63 V 2.97 V 3.46 V 3.13 V
Current 9.02 mA 13.00 mA 4.00 mA 12.50 mA 5.00 mA
Tx Power -2.66 dBm 1.69 dBm -11.30 dBm -1.30 dBm -7.30 dBm
Rx Power -18.23 dBm -- 1.99 dBm -13.97 dBm -1.00 dBm -9.91 dBm
Transmit Fault Count = 0
----------------------------------------------------------------------------
Note: ++ high-alarm; + high-warning; -- low-alarm; - low-warning

Ethernet1/34
transceiver is present
type is 10Gbase-SR
name is CISCO-FINISAR
part number is FTLX8574D3BCL-CS
revision is A
serial number is SOMESERIAL
nominal bitrate is 10300 MBit/sec
Link length supported for 50/125um OM2 fiber is 82 m
Link length supported for 62.5/125um fiber is 26 m
Link length supported for 50/125um OM3 fiber is 300 m
cisco id is 3
cisco extended id number is 4
cisco part number is 10-2415-03
cisco product id is SFP-10G-SR

SFP Detail Diagnostics Information (internal calibration)
----------------------------------------------------------------------------
Current Alarms Warnings
Measurement High Low High Low
----------------------------------------------------------------------------
Temperature 51.57 C 75.00 C -5.00 C 70.00 C 0.00 C
Voltage 3.30 V 3.63 V 2.97 V 3.46 V 3.13 V
Current 9.60 mA 13.00 mA 4.00 mA 12.50 mA 5.00 mA
Tx Power -2.76 dBm 1.69 dBm -11.30 dBm -1.30 dBm -7.30 dBm
Rx Power -20.96 dBm -- 1.99 dBm -13.97 dBm -1.00 dBm -9.91 dBm
Transmit Fault Count = 0
----------------------------------------------------------------------------
Note: ++ high-alarm; + high-warning; -- low-alarm; - low-warning

Ethernet1/34
transceiver is present
type is 10Gbase-SR
name is CISCO-FINISAR
part number is FTLX8574D3BCL-CS
revision is A
serial number is SOMESERIAL
nominal bitrate is 10300 MBit/sec
Link length supported for 50/125um OM2 fiber is 82 m
Link length supported for 62.5/125um fiber is 26 m
Link length supported for 50/125um OM3 fiber is 300 m
cisco id is 3
cisco extended id number is 4
cisco part number is 10-2415-03
cisco product id is SFP-10G-SR

SFP Detail Diagnostics Information (internal calibration)
----------------------------------------------------------------------------
Current Alarms Warnings
Measurement High Low High Low
----------------------------------------------------------------------------
Temperature 33.33 C 75.00 C -5.00 C 70.00 C 0.00 C
Voltage 3.28 V 3.63 V 2.97 V 3.46 V 3.13 V
Current 8.90 mA 13.00 mA 4.00 mA 12.50 mA 5.00 mA
Tx Power -2.62 dBm 1.69 dBm -11.30 dBm -1.30 dBm -7.30 dBm
Rx Power -13.97 dBm 1.99 dBm -13.97 dBm -1.00 dBm -9.91 dBm
Transmit Fault Count = 0
----------------------------------------------------------------------------
Note: ++ high-alarm; + high-warning; -- low-alarm; - low-warning

140) FSM:<Ethernet1/40> Transition at 968454 usecs after Wed Mar 3 11:06:06 2021
Previous state: [ETH_PORT_FSM_ST_WAIT_PRE_CFG]
Triggered event: [ETH_PORT_FSM_EV_PRE_CFG_DONE]
Next state: [ETH_PORT_FSM_ST_LINK_INIT]

141) FSM:<Ethernet1/40> Transition at 134588 usecs after Wed Mar 3 11:06:07 2021
Previous state: [ETH_PORT_FSM_ST_LINK_INIT]
Triggered event: [ETH_PORT_FSM_EV_ERRDISABLE_REQUEST]
Next state: [FSM_ST_NO_CHANGE]

142) Event:ESQ_START length:38, at 135235 usecs after Wed Mar 3 11:06:07 2021
Instance:0x1A027000, Seq Id:0x1, Ret:SUCCESS
Seq Type:SERIAL

143) Event:ESQ_REQ length:38, at 135245 usecs after Wed Mar 3 11:06:07 2021
Instance:0x1A027000, Seq Id:0x1, Ret:SUCCESS
Seq:Graceful shut steps to skip

144) Event:ESQ_REQ length:38, at 135250 usecs after Wed Mar 3 11:06:07 2021
Instance:0x1A027000, Seq Id:0x1, Ret:SUCCESS
[E_MTS_TX] Dst:MTS_SAP_REGISTRY(0), Opc:MTS_OPC_IM_L3_IF_GRACEFUL_DOWN(62520)
RRtoken:0x1CABF933

145) Event:ESQ_REQ length:38, at 135548 usecs after Wed Mar 3 11:06:07 2021
Instance:0x1A027000, Seq Id:0x1, Ret:SUCCESS
[E_MTS_TX] Dst:MTS_SAP_PORT_CLIENT(181), Opc:MTS_OPC_ETHPM_PORT_PHY_CLEANUP(61446)

146) Event:ESQ_RSP length:38, at 136547 usecs after Wed Mar 3 11:06:07 2021
Instance:0x1A027000, Seq Id:0x1, Ret:SUCCESS
[E_MTS_RX] Src:MTS_SAP_PORT_CLIENT(181), Opc:MTS_OPC_ETHPM_PORT_PHY_CLEANUP(61446)

147) Event:ESQ_REQ length:38, at 136552 usecs after Wed Mar 3 11:06:07 2021
Instance:0x1A027000, Seq Id:0x1, Ret:SUCCESS
[E_MTS_TX] Dst:MTS_SAP_ETH_SPAN(174), Opc:MTS_OPC_ETHPM_PORT_PHY_CLEANUP(61446)

148) Event:ESQ_REQ length:38, at 137014 usecs after Wed Mar 3 11:06:07 2021
Instance:0x1A027000, Seq Id:0x1, Ret:SUCCESS
Seq:send state change

149) FSM:<Ethernet1/40> Transition at 137063 usecs after Wed Mar 3 11:06:07 2021
Previous state: [ETH_PORT_FSM_ST_LINK_INIT]
Triggered event: [ETH_PORT_FSM_EV_PHY_DOWN]
Next state: [ETH_PORT_FSM_ST_WAIT_PHYSICAL_DOWN]

150) Event:ESQ_START length:38, at 137095 usecs after Wed Mar 3 11:06:07 2021
Instance:0x1A027000, Seq Id:0x1, Ret:SUCCESS
Seq Type:SERIAL

151) Event:ESQ_REQ length:38, at 137146 usecs after Wed Mar 3 11:06:07 2021
Instance:0x1A027000, Seq Id:0x1, Ret:SUCCESS
Seq:determine steps to skip

152) Event:ESQ_REQ length:38, at 137159 usecs after Wed Mar 3 11:06:07 2021
Instance:0x1A027000, Seq Id:0x1, Ret:SUCCESS
Seq:Send state change for shared intf if not sent in log down

153) Event:ESQ_REQ length:38, at 137162 usecs after Wed Mar 3 11:06:07 2021
Instance:0x1A027000, Seq Id:0x1, Ret:SUCCESS
[E_MTS_TX] Dst:MTS_SAP_REGISTRY(0), Opc:MTS_OPC_IM_PHY_LINK_STATE_CHANGE(62470)

154) Event:ESQ_REQ length:38, at 137224 usecs after Wed Mar 3 11:06:07 2021
Instance:0x1A027000, Seq Id:0x1, Ret:SUCCESS
[E_MTS_TX] Dst:MTS_SAP_PORT_CLIENT(181), Opc:MTS_OPC_ETHPM_PORT_PHY_CLEANUP(61446)
RRtoken:0x0E50E40A

155) Event:ESQ_RSP length:38, at 138439 usecs after Wed Mar 3 11:06:07 2021
Instance:0x1A027000, Seq Id:0x1, Ret:SUCCESS
[E_MTS_RX] Src:MTS_SAP_PORT_CLIENT(181), Opc:MTS_OPC_ETHPM_PORT_PHY_CLEANUP(61446)
RRtoken:0x0E50E40A

156) Event:ESQ_REQ length:38, at 138445 usecs after Wed Mar 3 11:06:07 2021
Instance:0x1A027000, Seq Id:0x1, Ret:SUCCESS
Seq:Wait for debounce logic

157) Event:ESQ_RSP length:38, at 238615 usecs after Wed Mar 3 11:06:07 2021
Instance:0x1A027000, Seq Id:0x1, Ret:SUCCESS
Seq:Wait for debounce logic

158) Event:ESQ_REQ length:38, at 238624 usecs after Wed Mar 3 11:06:07 2021
Instance:0x1A027000, Seq Id:0x1, Ret:SUCCESS
[E_MTS_TX] Dst:MTS_SAP_KIM(232), Opc:MTS_OPC_KIM_VPL_INFO_UPDATE(240645)

159) Event:ESQ_REQ length:38, at 238626 usecs after Wed Mar 3 11:06:07 2021
Instance:0x1A027000, Seq Id:0x1, Ret:SUCCESS
[E_MTS_TX] Dst:MTS_SAP_PIXM_LOCAL(153), Opc:MTS_OPC_PIXM_ALLOC_LTL(69635)

160) Event:ESQ_REQ length:38, at 238658 usecs after Wed Mar 3 11:06:07 2021
Instance:0x1A027000, Seq Id:0x1, Ret:SUCCESS
[E_MTS_TX] Dst:MTS_SAP_FCOE(473), Opc:MTS_OPC_ETHPM_PORT_PHY_CLEANUP(61446)

161) Event:ESQ_REQ length:38, at 238671 usecs after Wed Mar 3 11:06:07 2021
Instance:0x1A027000, Seq Id:0x1, Ret:SUCCESS
[E_MTS_TX] Dst:MTS_SAP_DOT1X(208), Opc:MTS_OPC_ETHPM_PORT_PHY_CLEANUP(61446)

162) Event:ESQ_REQ length:38, at 238683 usecs after Wed Mar 3 11:06:07 2021
Instance:0x1A027000, Seq Id:0x1, Ret:SUCCESS
[E_MTS_TX] Dst:MTS_SAP_CTS(400), Opc:MTS_OPC_ETHPM_PORT_PHY_CLEANUP(61446)

163) Event:ESQ_REQ length:38, at 238714 usecs after Wed Mar 3 11:06:07 2021
Instance:0x1A027000, Seq Id:0x1, Ret:SUCCESS
[E_MTS_TX] Dst:MTS_SAP_RPM_CTRL(348), Opc:MTS_OPC_ETHPM_PORT_PHY_CLEANUP(61446)
RRtoken:0x0E50E411

164) Event:ESQ_RSP length:38, at 239284 usecs after Wed Mar 3 11:06:07 2021
Instance:0x1A027000, Seq Id:0x1, Ret:SUCCESS
[E_MTS_RX] Src:MTS_SAP_RPM_CTRL(348), Opc:MTS_OPC_ETHPM_PORT_PHY_CLEANUP(61446)
RRtoken:0x0E50E411

165) Event:ESQ_REQ length:38, at 239315 usecs after Wed Mar 3 11:06:07 2021
Instance:0x1A027000, Seq Id:0x1, Ret:SUCCESS
[E_MTS_TX] Dst:MTS_SAP_ACLMGR(351), Opc:MTS_OPC_ETHPM_PORT_PHY_CLEANUP(61446)
RRtoken:0x0E50E413

166) Event:ESQ_RSP length:38, at 240779 usecs after Wed Mar 3 11:06:07 2021
Instance:0x1A027000, Seq Id:0x1, Ret:SUCCESS
[E_MTS_RX] Src:MTS_SAP_ACLMGR(351), Opc:MTS_OPC_ETHPM_PORT_PHY_CLEANUP(61446)
RRtoken:0x0E50E413

167) Event:ESQ_REQ length:38, at 240823 usecs after Wed Mar 3 11:06:07 2021
Instance:0x1A027000, Seq Id:0x1, Ret:SUCCESS
[E_MTS_TX] Dst:MTS_SAP_SPM(487), Opc:MTS_OPC_ETHPM_PORT_PHY_CLEANUP(61446)
RRtoken:0x0E50E415

168) Event:ESQ_RSP length:38, at 241291 usecs after Wed Mar 3 11:06:07 2021
Instance:0x1A027000, Seq Id:0x1, Ret:SUCCESS
[E_MTS_RX] Src:MTS_SAP_SPM(487), Opc:MTS_OPC_ETHPM_PORT_PHY_CLEANUP(61446)
RRtoken:0x0E50E415

169) Event:ESQ_REQ length:38, at 241313 usecs after Wed Mar 3 11:06:07 2021
Instance:0x1A027000, Seq Id:0x1, Ret:SUCCESS
[E_MTS_TX] Dst:MTS_SAP_ETH_PORT_SEC(191), Opc:MTS_OPC_ETHPM_PORT_PHY_CLEANUP(61446)

170) Event:ESQ_REQ length:38, at 241326 usecs after Wed Mar 3 11:06:07 2021
Instance:0x1A027000, Seq Id:0x1, Ret:SUCCESS
[E_MTS_TX] Dst:MTS_SAP_FLEXLINK(498), Opc:MTS_OPC_ETHPM_PORT_PHY_CLEANUP(61446)

171) Event:ESQ_REQ length:38, at 241378 usecs after Wed Mar 3 11:06:07 2021
Instance:0x1A027000, Seq Id:0x1, Ret:SUCCESS
[E_MTS_TX] Dst:MTS_SAP_L2FM(221), Opc:MTS_OPC_ETHPM_PORT_PHY_CLEANUP(61446)
RRtoken:0x0E50E419

172) Event:ESQ_RSP length:38, at 241523 usecs after Wed Mar 3 11:06:07 2021
Instance:0x1A027000, Seq Id:0x1, Ret:SUCCESS
[E_MTS_RX] Src:MTS_SAP_L2FM(221), Opc:MTS_OPC_ETHPM_PORT_PHY_CLEANUP(61446)
RRtoken:0x0E50E419

173) Event:ESQ_REQ length:38, at 241558 usecs after Wed Mar 3 11:06:07 2021
Instance:0x1A027000, Seq Id:0x1, Ret:SUCCESS
[E_MTS_TX] Dst:MTS_SAP_ELTM(192), Opc:MTS_OPC_ETHPM_PORT_PHY_CLEANUP(61446)
RRtoken:0x0E50E41B

174) Event:ESQ_RSP length:38, at 242649 usecs after Wed Mar 3 11:06:07 2021
Instance:0x1A027000, Seq Id:0x1, Ret:SUCCESS
[E_MTS_RX] Src:MTS_SAP_ELTM(192), Opc:MTS_OPC_ETHPM_PORT_PHY_CLEANUP(61446)
RRtoken:0x0E50E41B

175) Event:ESQ_REQ length:38, at 242686 usecs after Wed Mar 3 11:06:07 2021
Instance:0x1A027000, Seq Id:0x1, Ret:SUCCESS
[E_MTS_TX] Dst:MTS_SAP_ETH_SPAN(174), Opc:MTS_OPC_ETHPM_PORT_PHY_CLEANUP(61446)

176) Event:ESQ_REQ length:38, at 242712 usecs after Wed Mar 3 11:06:07 2021
Instance:0x1A027000, Seq Id:0x1, Ret:SUCCESS
[E_MTS_TX] Dst:MTS_SAP_ASSOC_MGR(714), Opc:MTS_OPC_ETHPM_PORT_PHY_CLEANUP(61446)

177) Event:ESQ_REQ length:38, at 242726 usecs after Wed Mar 3 11:06:07 2021
Instance:0x1A027000, Seq Id:0x1, Ret:SUCCESS
[E_MTS_TX] Dst:MTS_SAP_SFLOW(887), Opc:MTS_OPC_ETHPM_PORT_PHY_CLEANUP(61446)

178) FSM:<Ethernet1/40> Transition at 242770 usecs after Wed Mar 3 11:06:07 2021
Previous state: [ETH_PORT_FSM_ST_WAIT_PHYSICAL_DOWN]
Triggered event: [ETH_PORT_FSM_EV_PHY_DOWN_DONE]
Next state: [ETH_PORT_FSM_ST_WAIT_APPLY_CONFIG]

[balaji.bandi]

i would suggest checking the Physical cable - how far are this device?

is the port-channel have only 1 Link (physical or more ports)  - post below information both the nexus and connected nexus interface config.

show run inter port-channel1001

show run interface eth 1/40

show interface eth 1/40

show etherchannel 1001 summanry

[JuannNino]

there are 2 93180 connected to 2 3172, one port per device, 2 links.

after so many failures the 3172 disables the interface

2021 Mar 3 11:06:07.244 SYD1-SW-TOR-B-01 %ETHPORT-5-IF_DOWN_ERROR_DISABLED: Interface Ethernet1/40 is down (Error disabled. Reason:Too many link flaps)

same config for both devices so only showing one interface

2 x 93180

interface port-channel1014
switchport
switchport mode trunk
switchport trunk allowed vlan 3408
no lacp graceful-convergence
vpc 1014

interface Ethernet1/34
switchport
switchport mode trunk
switchport trunk allowed vlan 3408
channel-group 1014
no shutdown

Ethernet1/34 is down (Link not connected)
admin state is up, Dedicated Interface
Belongs to Po1014
Hardware: 100/1000/10000/25000 Ethernet, address: SOMEMAC
MTU 1500 bytes, BW 25000000 Kbit, DLY 10 usec
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, medium is broadcast
Port mode is trunk
auto-duplex, auto-speed, media type is 10G
Beacon is turned off
Auto-Negotiation is turned on FEC mode is Auto
Input flow-control is off, output flow-control is off
Auto-mdix is turned off
Rate mode is dedicated
Switchport monitor is off
EtherType is 0x8100
EEE (efficient-ethernet) : n/a
admin fec state is auto, oper fec state is auto
Last link flapped never
Last clearing of "show interface" counters 3w0d
0 interface resets
Load-Interval #1: 30 seconds
30 seconds input rate 0 bits/sec, 0 packets/sec
30 seconds output rate 0 bits/sec, 0 packets/sec
input rate 0 bps, 0 pps; output rate 0 bps, 0 pps
Load-Interval #2: 5 minute (300 seconds)
300 seconds input rate 0 bits/sec, 0 packets/sec
300 seconds output rate 0 bits/sec, 0 packets/sec
input rate 0 bps, 0 pps; output rate 0 bps, 0 pps
RX
0 unicast packets 0 multicast packets 0 broadcast packets
0 input packets 0 bytes
0 jumbo packets 0 storm suppression bytes
0 runts 0 giants 0 CRC 0 no buffer
0 input error 0 short frame 0 overrun 0 underrun 0 ignored
0 watchdog 0 bad etype drop 0 bad proto drop 0 if down drop
0 input with dribble 0 input discard
0 Rx pause
TX
0 unicast packets 0 multicast packets 0 broadcast packets
0 output packets 0 bytes
0 jumbo packets
0 output error 0 collision 0 deferred 0 late collision
0 lost carrier 0 no carrier 0 babble 0 output discard
0 Tx pause

2 X 3172

interface port-channel1001
switchport
switchport mode trunk
switchport trunk allowed vlan 3408
vpc 1001

interface Ethernet1/40
switchport
switchport mode trunk
switchport trunk allowed vlan 3408
channel-group 1001

Ethernet1/40 is down (Link not connected)
admin state is up, Dedicated Interface
Belongs to Po1001
Hardware: 100/1000/10000 Ethernet, address: SOMEMAC
MTU 1500 bytes, BW 10000000 Kbit, DLY 10 usec
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, medium is broadcast
Port mode is trunk
auto-duplex, auto-speed, media type is 10G
Beacon is turned off
Auto-Negotiation is turned on FEC mode is Auto
Input flow-control is off, output flow-control is off
Auto-mdix is turned off
Rate mode is dedicated
Switchport monitor is off
EtherType is 0x8100
EEE (efficient-ethernet) : n/a
Last link flapped 16week(s) 1day(s)
Last clearing of "show interface" counters 3w0d
0 interface resets
Load-Interval #1: 30 seconds
30 seconds input rate 0 bits/sec, 0 packets/sec
30 seconds output rate 0 bits/sec, 0 packets/sec
input rate 0 bps, 0 pps; output rate 0 bps, 0 pps
Load-Interval #2: 5 minute (300 seconds)
300 seconds input rate 0 bits/sec, 0 packets/sec
300 seconds output rate 0 bits/sec, 0 packets/sec
input rate 0 bps, 0 pps; output rate 0 bps, 0 pps
RX
0 unicast packets 0 multicast packets 0 broadcast packets
0 input packets 0 bytes
0 jumbo packets 0 storm suppression packets
0 runts 0 giants 0 CRC 0 no buffer
0 input error 0 short frame 0 overrun 0 underrun 0 ignored
0 watchdog 0 bad etype drop 0 bad proto drop 0 if down drop
0 input with dribble 0 input discard
0 Rx pause
TX
0 unicast packets 0 multicast packets 0 broadcast packets
0 output packets 0 bytes
0 jumbo packets
0 output error 0 collision 0 deferred 0 late collision
0 lost carrier 0 no carrier 0 babble 0 output discard
0 Tx pause

[balaji.bandi]

what is the nexus version of each device?

why you want to do the below config this is most time use non-nexus, since both nexus you do not require this line.

no lacp graceful-convergence

channel-group 1014  mode active is advise for LACP

Do you have VLAN created 3408 and allowed in both the vPC (between nexus 9K ) vPC (between 3K) ?