LACP Nexus 9k Lab on Pnetlab

[VuongNguyen2903]

Hi everyone,

I practice the Lab on Pnetlab. Connect 2 Nexus and configuration Port channel.

I have issue with the information: I configure Channel Po10 for 2 Nexus on both e1/1 port. 

version 9.3(4) Bios:version

interface Ethernet1/1
switchport mode trunk
speed 10000
duplex full
channel-group 10 mode active

switch(config-if)# show run int po10

!Command: show running-config interface port-channel10
!Running configuration last done at: Tue Apr 4 03:17:11 2023
!Time: Tue Apr 4 03:21:57 2023

version 9.3(4) Bios:version

interface port-channel10
switchport mode trunk
speed 10000
duplex full

Group Port- Type Protocol Member Ports
Channel
--------------------------------------------------------------------------------
10 Po10(SD) Eth LACP Eth1/1(s)

2023 Apr 4 03:17:13 switch %ETHPORT-5-IF_ADMIN_UP: Interface port-channel10 is
admin up .
2023 Apr 4 03:17:13 switch %ETHPORT-5-IF_DOWN_PORT_CHANNEL_MEMBERS_DOWN: Interf
ace port-channel10 is down (No operational members)
2023 Apr 4 03:17:13 switch last message repeated 1 time
2023 Apr 4 03:17:13 switch %ETHPORT-5-SPEED: Interface Ethernet1/1, operational
speed changed to 1 Gbps
2023 Apr 4 03:17:13 switch %ETHPORT-5-IF_DUPLEX: Interface Ethernet1/1, operati
onal duplex mode changed to Full
2023 Apr 4 03:17:13 switch %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface Ethernet1/1
, operational Receive Flow Control state changed to off
2023 Apr 4 03:17:13 switch %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface Ethernet1/1
, operational Transmit Flow Control state changed to off
2023 Apr 4 03:17:13 switch %ETHPORT-5-SPEED: Interface port-channel10, operatio
nal speed changed to 1 Gbps
2023 Apr 4 03:17:13 switch %ETHPORT-5-IF_DUPLEX: Interface port-channel10, oper
ational duplex mode changed to Full
2023 Apr 4 03:17:13 switch %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface port-channe
l10, operational Receive Flow Control state changed to off
2023 Apr 4 03:17:13 switch %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface port-channe
l10, operational Transmit Flow Control state changed to off
2023 Apr 4 03:17:23 switch %ETH_PORT_CHANNEL-5-PORT_SUSPENDED: Ethernet1/1: Eth
ernet1/1 is suspended

You may give me the solution? Thank you for your support.

[TotallyTodd]

You totally need 2 or more interfaces on the same device to create a port-channel totally. 

[balaji.bandi]

that should work as expected on the version you using, (there are some issue on old version 9.3 is good to work)

try below commands (both the switches)

interface port-channel10

shutdown

no lacp suspend-individual

no shutdown

[VuongNguyen2903]

Tks. I will try to do it.

[TotallyTodd]

Totally hope it works!

[VuongNguyen2903]

If I used this command as  above. Interface Po will down: Po100 1 eth trunk down No operational members auto(D) lacp

[balaji.bandi]

Po100  - hope this is PO10

I just tested  and works as expected: below test results :

feature lacp

interface port-channel10
switchport
switchport mode trunk

interface Ethernet1/1
switchport
switchport mode trunk
channel-group 10 mode active
no shutdown

[VuongNguyen2903]

Nexus01:

Interface Ethernet1/1 is suspended
Channel group is 10 port channel is Po10
PDUs sent: 32
PDUs rcvd: 0
Markers sent: 0
Markers rcvd: 0
Marker response sent: 0
Marker response rcvd: 0
Unknown packets rcvd: 0
Illegal packets rcvd: 0
Lag Id: [ [(0, 0-0-0-0-0-0, 0, 0, 0), (0, 0-0-0-0-0-0, 0, 0, 0)] ]
Operational as aggregated link since Thu Jan 1 00:00:00 1970

Nexus02:

Interface Ethernet1/1 is suspended
Channel group is 10 port channel is Po10
PDUs sent: 44
PDUs rcvd: 0
Markers sent: 0
Markers rcvd: 0
Marker response sent: 0
Marker response rcvd: 0
Unknown packets rcvd: 0
Illegal packets rcvd: 0

Everyone can help me?

[MHM Cisco World]

The speed duplex is mismatch

Please hardcoded the value and try check again.

[VuongNguyen2903]

Tks for reply.

I have configure on int and po: speed 1000. and 2 device the same configure. But no effect.

[MHM Cisco World]

check my config above 

[MHM Cisco World]

start from zero do these steps 
do this in both NSK in same time i.e. when you config keepalive in NSK1 dont go to step2 but config keepalive in NSK2

1- CONNECT interface that use for keepalive 
2- config the keepalive interface 
3-
feature vpc
feature lacp 
feature inter-vlan 
4- config the spanning tree mode mst 
config spanning tree mst config 
revision 0 
instance 0 vlan 1-4094
5-
config the vpc domain 
config peer-keepalive and use vrf default in end of this command 
6-connect interface that use as vpc peer-link 
7- interface ex/x
channel-group 1 mode active  forces 
no shut
8- interface port-channel 1 
spanning-tree port type network 
switchport mode trunk 
switchport trunk allow vlan 1,.... <<- what you want other vlan specific here 
vpc peer-link 
no shut 


that all steps you need 
the issue is there is bug if you config peer-link before config the SPT MST the peer-link never go UP

[VuongNguyen2903]

Thank you very much, 

But I only configure the channel-port in this lab. 

[VuongNguyen2903]

You can give me your advice? Please

[VuongNguyen2903]

version 9.3(9) Bios:version

interface port-channel10
switchport mode trunk
speed 1000

01(config-if)# show run int e1/1

!Command: show running-config interface Ethernet1/1
!Running configuration last done at: Thu Apr 6 02:06:06 2023
!Time: Thu Apr 6 02:06:17 2023

version 9.3(9) Bios:version

interface Ethernet1/1
switchport mode trunk
speed 1000
channel-group 10 mode active

01(config-if)#

version 9.3(9) Bios:version

interface port-channel10
switchport mode trunk
speed 1000

02(config-if)# show run int e1/1

!Command: show running-config interface Ethernet1/1
!Running configuration last done at: Thu Apr 6 02:05:57 2023
!Time: Thu Apr 6 02:06:31 2023

version 9.3(9) Bios:version

interface Ethernet1/1
switchport mode trunk
speed 1000
channel-group 10 mode active

02(config-if)#