ACI leaf switch vPC showing vpcPeerLinkDown

[Madura Malwatte]

I have a vPC interface from two leaf nodes, one node shows its vPC interface port as up and operational but the other node shows its interface as down / vpcPeerLinkDown.

I have tried to reset the interface but keeps going into this state. I have other vPC interfaces configured from the same two nodes working fine. Do you know what could be the issue?

[micgarc2]

This still an issue? If so please get the following output from one of the leafs in the pair:

show port-channel extended

show vpc extended  <-- will give you vpc ID for next command as well

show vpc consistency-parameters interface port-channel <vPCid>

Thanks,

Michael G.

[ravalmiteshraval1]

FROM LEAF 1

CORDCLEF-1# show port-channel extended
Flags: D - Down P - Up in port-channel (members)
I - Individual H - Hot-standby (LACP only)
s - Suspended r - Module-removed
S - Switched R - Routed
U - Up (port-channel)
M - Not in use. Min-links not met
F - Configuration failed
-----------------------------------------------------------------------------
Group Port- BundleGrp Protocol Member Ports
Channel
-----------------------------------------------------------------------------
3 Po3(SU) Fex121-122 NONE Eth1/5(P) Eth1/7(P)
9 Po9(SU) L101-102-L3out_IPG LACP Eth1/25(P)
13 Po13(SU) UCS_SAP_IPG_FIB LACP Eth121/1/2(P)
15 Po15(SU) UCS_SAP_IPG LACP Eth121/1/1(P)
19 Po19(SU) FEX111 NONE Eth1/9(P) Eth1/10(P)
20 Po20(SU) FEX113 NONE Eth1/11(P) Eth1/12(P)
1 Po1(SU) FEX115 NONE Eth1/13(P) Eth1/14(P)
2 Po2(SU) FEX123 NONE Eth1/6(P) Eth1/8(P)
5 Po5(SD) MitAni-Test_23-13 LACP Eth1/29(D)
7 Po7(SD) L101-102_1_33_IPG_DM LACP Eth1/28(D)
Z
CORDCLEF-1# show vpc extended
Legend:
(*) - local vPC is down, forwarding via vPC peer-link

vPC domain id : 112
Peer status : peer adjacency formed ok
vPC keep-alive status : Disabled
Configuration consistency status : success
Per-vlan consistency status : success
Type-2 consistency status : success
vPC role : primary, operational secondary
Number of vPCs configured : 5
Peer Gateway : Disabled
Dual-active excluded VLANs : -
Graceful Consistency Check : Enabled
Auto-recovery status : Enabled (timeout = 240 seconds)
Operational Layer3 Peer : Disabled

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

vPC status
-------------------------------------------------------------------------------- -
id Port Status Consistency Reason Active vlans Bndl Grp Name
-- ---- ------ ----------- ------ -------------------- --------------- -
344 Po9 up success success 230 L101-102-L3out_
IPG
345 Po5 down* success success - MitAni-Test_23-
13
5 Po13 up success success 600-606 UCS_SAP_IPG_FIB

6 Po15 up success success 600-606 UCS_SAP_IPG

7 Po7 down* success success - L101-102_1_33_I
PG_DMZ
CORDCLEF-1# show vpc consistency-parameters interface port-channel 7

Legend:
Type 1 : vPC will be suspended in case of mismatch

Name Type Local Value Peer Value
------------- ---- ---------------------- -----------------------
lag-id 1 [(7f9b,
0-23-4-ee-be-70, 8007,
0, 0), (8000,
78-bc-1a-47-65-0, 30,
0, 0)]
mode 1 active
Speed 1 10 Gb/s
Duplex 1 full
Port Mode 1 trunk
Native Vlan 1 0
MTU 1 9000
vPC card type 1 Empty Empty
Allowed VLANs - - -
Local suspended VLANs - - -
CORDCLEF-1#

FROM LEAF-2

CORDCLEF-2# show port-channel extended
Flags: D - Down P - Up in port-channel (members)
I - Individual H - Hot-standby (LACP only)
s - Suspended r - Module-removed
S - Switched R - Routed
U - Up (port-channel)
M - Not in use. Min-links not met
F - Configuration failed
-----------------------------------------------------------------------------
Group Port- BundleGrp Protocol Member Ports
Channel
-----------------------------------------------------------------------------
5 Po5(SU) Fex121-122 NONE Eth1/5(P) Eth1/7(P)
9 Po9(SU) L101-102-L3out_IPG LACP Eth1/25(P)
13 Po13(SU) UCS_SAP_IPG_FIB LACP Eth121/1/2(P)
15 Po15(SU) UCS_SAP_IPG LACP Eth121/1/1(P)
19 Po19(SU) FEX112 NONE Eth1/9(P) Eth1/10(P)
20 Po20(SU) FEX114 NONE Eth1/11(P) Eth1/12(P)
1 Po1(SU) FEX116 NONE Eth1/13(P) Eth1/14(P)
2 Po2(SU) FEX124 NONE Eth1/6(P) Eth1/8(P)
4 Po4(SD) MitAni-Test_23-13 LACP Eth1/29(D)
7 Po7(SU) L101-102_1_33_IPG_DM LACP Eth1/28(P)
Z
CORDCLEF-2# show vpc extended
Legend:
(*) - local vPC is down, forwarding via vPC peer-link

vPC domain id : 112
Peer status : peer adjacency formed ok
vPC keep-alive status : Disabled
Configuration consistency status : success
Per-vlan consistency status : success
Type-2 consistency status : success
vPC role : secondary, operational primary
Number of vPCs configured : 5
Peer Gateway : Disabled
Dual-active excluded VLANs : -
Graceful Consistency Check : Enabled
Auto-recovery status : Enabled (timeout = 240 seconds)
Operational Layer3 Peer : Disabled

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

vPC status
-------------------------------------------------------------------------------- -
id Port Status Consistency Reason Active vlans Bndl Grp Name
-- ---- ------ ----------- ------ -------------------- --------------- -
344 Po9 up success success 230 L101-102-L3out_
IPG
345 Po4 down* success success - MitAni-Test_23-
13
5 Po13 up success success 600-606 UCS_SAP_IPG_FIB

6 Po15 up success success 600-606 UCS_SAP_IPG

7 Po7 up success success - L101-102_1_33_I
PG_DMZ
CORDCLEF-2# show vpc consistency-parameters interface port-channel 7

Legend:
Type 1 : vPC will be suspended in case of mismatch

Name Type Local Value Peer Value
------------- ---- ---------------------- -----------------------
lag-id 1 [(7f9b,
0-23-4-ee-be-70, 8007,
0, 0), (8000,
78-bc-1a-47-65-0, 30,
0, 0)]
mode 1 active
Speed 1 10 Gb/s
Duplex 1 full
Port Mode 1 trunk
Native Vlan 1 0
MTU 1 9000
vPC card type 1 Empty Empty
Allowed VLANs - - -
Local suspended VLANs - - -
CORDCLEF-2#

Please check and give suggestion.