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vpc port-channel 10 status is down (Nexus-9k)

rahimamir67623
Level 1
Level 1

Does anyone know how to bring the vpc port-channel 10 status up, i did what i could, and tried troubleshooting myself. My topology is a single sided vpc using two Nexus 9k with one vpc member switch as my downstream device.

 

Heres the configuration below.

 

*9K-NX1:

=~=~=~=~=~=~=~=~=~=~=~= PuTTY log 2020.09.05 16:26:28 =~=~=~=~=~=~=~=~=~=~=~=
do sh run

 

vlan 1

 

vrf context management

vpc domain 100
role priority 100
peer-keepalive destination 10.10.1.2 source 10.10.1.1

 

interface port-channel1
switchport mode trunk
spanning-tree port type network
vpc peer-link

 

interface port-channel10
switchport mode trunk
vpc 10

 

interface Ethernet1/1
switchport mode trunk
channel-group 1 mode active

 

interface Ethernet1/2
switchport mode trunk
channel-group 1 mode active

 

interface Ethernet1/3

 

interface Ethernet1/4
switchport mode trunk
channel-group 10 mode active


interface mgmt0
vrf member management
ip address 10.10.1.1/30
line console
line vty
boot nxos bootflash:/nxos.9.2.2.bin


switch(config)# do sh vpc brief

 

Legend:
(*) - local vPC is down, forwarding via vPC peer-link

vPC domain id : 100
Peer status : peer adjacency formed ok
vPC keep-alive status : peer is alive
Configuration consistency status : success
Per-vlan consistency status : success
Type-2 consistency status : success
vPC role : primary
Number of vPCs configured : 1
Peer Gateway : Disabled
Dual-active excluded VLANs : -
Graceful Consistency Check : Enabled
Auto-recovery status : Disabled
Delay-restore status : Timer is off.(timeout = 30s)
Delay-restore SVI status : Timer is off.(timeout = 10s)
Operational Layer3 Peer-router : Disabled

vPC Peer-link status
---------------------------------------------------------------------
id Port Status Active vlans
-- ---- ------ -------------------------------------------------
1 Po1 up 1

vPC status
----------------------------------------------------------------------------
Id Port Status Consistency Reason Active vlans
-- ------------ ------ ----------- ------ ---------------
10 Po10 down* success success -

Please check "show vpc consistency-parameters vpc <vpc-num>" for the
consistency reason of down vpc and for type-2 consistency reasons for
any vpc.


switch(config)#

 

 

 

*9K-NX2:

=~=~=~=~=~=~=~=~=~=~=~= PuTTY log 2020.09.05 16:23:28 =~=~=~=~=~=~=~=~=~=~=~=
do sh run

 

vlan 1

vrf context management
vpc domain 100
role priority 120
peer-keepalive destination 10.10.1.1 source 10.10.1.2

 

interface port-channel1
switchport mode trunk
spanning-tree port type network
vpc peer-link

 

interface port-channel10
switchport mode trunk
vpc 10

 

interface Ethernet1/1
switchport mode trunk
channel-group 1 mode active

 

interface Ethernet1/2

switchport mode trunk
channel-group 1 mode active

 

interface Ethernet1/3

 

interface Ethernet1/4
switchport mode trunk
channel-group 10 mode active


interface mgmt0
vrf member management
ip address 10.10.1.2/30
line console
line vty
boot nxos bootflash:/nxos.9.2.2.bin


switch(config)# do sh vpc brief

 

Legend:
(*) - local vPC is down, forwarding via vPC peer-link

vPC domain id : 100
Peer status : peer adjacency formed ok
vPC keep-alive status : peer is alive
Configuration consistency status : success
Per-vlan consistency status : success
Type-2 consistency status : success
vPC role : secondary
Number of vPCs configured : 1
Peer Gateway : Disabled
Dual-active excluded VLANs : -
Graceful Consistency Check : Enabled
Auto-recovery status : Disabled
Delay-restore status : Timer is off.(timeout = 30s)
Delay-restore SVI status : Timer is off.(timeout = 10s)
Operational Layer3 Peer-router : Disabled

vPC Peer-link status
---------------------------------------------------------------------
id Port Status Active vlans
-- ---- ------ -------------------------------------------------
1 Po1 up -

vPC status
----------------------------------------------------------------------------
Id Port Status Consistency Reason Active vlans
-- ------------ ------ ----------- ------ ---------------
10 Po10 down* success success -

Please check "show vpc consistency-parameters vpc <vpc-num>" for the
consistency reason of down vpc and for type-2 consistency reasons for
any vpc.


switch(config)#

 

 

 

SW1 (downstream catalyst switch):

!
!
interface Port-channel10
switchport trunk encapsulation dot1q
switchport mode trunk
!
interface GigabitEthernet0/0
media-type rj45
duplex full
no negotiation auto
channel-group 10 mode active
!
interface GigabitEthernet0/1
media-type rj45
duplex full
no negotiation auto
channel-group 10 mode active
!
interface GigabitEthernet0/2
media-type rj45
negotiation auto
!
interface GigabitEthernet0/3
media-type rj45
negotiation auto
!

 

1 Reply 1

Sergiu.Daniluk
VIP Alumni
VIP Alumni

Hi @rahimamir67623 

Can you share following outputs from Nexus switches:

show port-channel summary
show int po 10
show int e 1/4 status

Stay safe,

Sergiu