12-13-2011 04:09 PM - edited 03-01-2019 10:11 AM
Issue : VPC consistency failed and VPC status is down on some of port channels wher as some other is working . This issue is for po18 only . once this is resolved will work on other Portchannels.
Topology,:
5k1 5k2
| |
| |
| |
fex3 fex4
\ /
\ /
\ /
\ /
server
Log for 5k3
5K3# sh run int e103/1/18
!Command: show running-config interface Ethernet103/1/18
!Time: Tue Dec 13 22:31:37 2011
version 5.0(3)N1(1b)
interface Ethernet103/1/18
description *** Connected to GLARWI457-DATA1 ***
switchport access vlan 201
spanning-tree port type edge
channel-group 18 mode active
5K3#
5K3# sh run int po 18
!Command: show running-config interface port-channel18
!Time: Tue Dec 13 22:33:50 2011
version 5.0(3)N1(1b)
interface port-channel18
description ***Connected to GLAWI457***
switchport access vlan 201
vpc 18
5K3# sh vpc brief
Legend:
(*) - local vPC is down, forwarding via vPC peer-link
vPC domain id : 1
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 : 8
Peer Gateway : Disabled
Dual-active excluded VLANs : -
Graceful Consistency Check : Enabled
vPC Peer-link status
---------------------------------------------------------------------
id Port Status Active vlans
-- ---- ------ --------------------------------------------------
1 Po1 up 1-2,50-52,70-72,150,200-201,400,600,800
vPC status
----------------------------------------------------------------------------
id Port Status Consistency Reason Active vlans
------ ----------- ------ ----------- -------------------------- -----------
4 Po4 down* failed Consistency Check Not -
Performed
5 Po5 down* failed Consistency Check Not -
Performed
10 Po10 up success success 50-51,150,2
00-201,400
11 Po11 up success success 50-51,150,2
00-201,400
12 Po12 up success success 50-51,150,2
00-201,400
13 Po13 up success success 50-51,150,2
00-201,400
18 Po18 down* success success -
19 Po19 down* success success -
GLASW-5K3# sh vpc consistency-parameters vpc 18
Legend:
Type 1 : vPC will be suspended in case of mismatch
Name Type Local Value Peer Value
------------- ---- ---------------------- -----------------------
Shut Lan 1 No No
STP Port Type 1 Default Default
STP Port Guard 1 None None
STP MST Simulate PVST 1 Default Default
Allowed VLANs - 201 201 (check this local and peer vlan )
Local suspended VLANs - - -
GLASW-5K3#
GLASW-5K3#
Log for 5k4
5K4# sh run int eth 113/1/18
!Command: show running-config interface Ethernet113/1/18
!Time: Tue Dec 13 22:31:03 2011
version 5.0(3)N1(1b)
interface Ethernet113/1/18
description *** Connected to GLAWI457-DATA2 ***
switchport access vlan 201
spanning-tree port type edge
channel-group 18 mode active
5K4#
5K4# sh run int po 18
!Command: show running-config interface port-channel18
!Time: Tue Dec 13 22:34:09 2011
version 5.0(3)N1(1b)
interface port-channel18
description ****Connected to GLAWI457***
vpc 18
switchport access vlan 201
5K4#
5K4# sh vpc brief
Legend:
(*) - local vPC is down, forwarding via vPC peer-link
vPC domain id : 1
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 : 8
Peer Gateway : Disabled
Dual-active excluded VLANs : -
Graceful Consistency Check : Enabled
vPC Peer-link status
---------------------------------------------------------------------
id Port Status Active vlans
-- ---- ------ --------------------------------------------------
1 Po1 up 1-2,50-52,70-72,150,200-201,400,600,800
vPC status
----------------------------------------------------------------------------
id Port Status Consistency Reason Active vlans
------ ----------- ------ ----------- -------------------------- -----------
4 Po4 down* failed Consistency Check Not -
Performed
5 Po5 down* failed Consistency Check Not -
Performed
10 Po10 up success success 50-51,150,2
00-201,400
11 Po11 up success success 50-51,150,2
00-201,400
12 Po12 up success success 50-51,150,2
00-201,400
13 Po13 up failed Consistency Check Not 50-51,150,2
Performed 00-201,400
18 Po18 down* failed Consistency Check Not -
Performed
19 Po19 down* failed Consistency Check Not -
Performed
5K4# sh vpc consistency-parameters vpc 18
Legend:
Type 1 : vPC will be suspended in case of mismatch
Name Type Local Value Peer Value
------------- ---- ---------------------- -----------------------
Shut Lan 1 No No
STP Port Type 1 Default Default
STP Port Guard 1 None None
STP MST Simulate PVST 1 Default Default
Allowed VLANs - 201 1 (check here local and peer vlan )
Local suspended VLANs - - -
5K4#
12-14-2011 12:57 PM
Chandan,
What is the status of the physical interfaces and port-channel? Do you see these as up if you do a `sh int` and `sh port-channel summary`?
Chris
12-14-2011 02:39 PM
Port channel and physical ports are down [line protocol down , configured and administratively UP] as the device is yet to be connectted by the DC engineer .
12-14-2011 02:43 PM
BUT For a different port channel [po 13 ] the portchannel , and physical interface and PO is up still the VPC is failing the consistency.
5K4# sh vpc brief
Legend:
(*) - local vPC is down, forwarding via vPC peer-link
vPC domain id : 1
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 : 8
Peer Gateway : Disabled
Dual-active excluded VLANs : -
Graceful Consistency Check : Enabled
vPC Peer-link status
---------------------------------------------------------------------
id Port Status Active vlans
-- ---- ------ --------------------------------------------------
1 Po1 up 1-2,50-52,70-72,150,200-201,400,600,800
vPC status
----------------------------------------------------------------------------
id Port Status Consistency Reason Active vlans
------ ----------- ------ ----------- -------------------------- -----------
4 Po4 down* failed Consistency Check Not -
Performed
5 Po5 down* failed Consistency Check Not -
Performed
10 Po10 up success success 50-51,150,2
00-201,400
11 Po11 up success success 50-51,150,2
00-201,400
12 Po12 up success success 50-51,150,2
00-201,400
13 Po13 up failed Consistency Check Not 50-51,150,2
Performed 00-201,400
18 Po18 up success success 201
19 Po19 up success success 201
5K4# sh int po 13
port-channel13 is up
vPC Status: Down, vPC number: 13 [packets forwarded via vPC peer-link]
Hardware: Port-Channel, address: 0007.7dc9.fc4f (bia 0007.7dc9.fc4f)
Description: "Connected to GLAVM403"
MTU 1500 bytes, BW 2000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA
Port mode is trunk
full-duplex, 1000 Mb/s
Beacon is turned off
Input flow-control is off, output flow-control is on
Switchport monitor is off
EtherType is 0x8100
Members in this channel: Eth113/1/13, Eth113/1/14
Last clearing of "show interface" counters never
30 seconds input rate 106976 bits/sec, 13372 bytes/sec, 54 packets/sec
30 seconds output rate 2132520 bits/sec, 266565 bytes/sec, 561 packets/sec
Load-Interval #2: 5 minute (300 seconds)
input rate 173.32 Kbps, 36 pps; output rate 2.44 Mbps, 419 pps
RX
403285418 unicast packets 171096 multicast packets 161845 broadcast packets
403618359 input packets 275739294703 bytes
138861776 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
1612098077 unicast packets 186946046 multicast packets 117268953 broadcast packets
1916313076 output packets 947767205968 bytes
431627748 jumbo packets
0 output errors 0 collision 0 deferred 0 late collision
0 lost carrier 0 no carrier 0 babble
0 Tx pause
5 interface resets
5K4# sh port-c summary
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)
--------------------------------------------------------------------------------
Group Port- Type Protocol Member Ports
Channel
--------------------------------------------------------------------------------
1 Po1(SU) Eth LACP Eth4/15(P) Eth4/16(P)
4 Po4(SD) Eth LACP Eth4/13(I)
5 Po5(SD) Eth NONE Eth4/14(D)
10 Po10(SU) Eth NONE Eth113/1/33(P) Eth113/1/34(P)
11 Po11(SU) Eth NONE Eth113/1/26(P) Eth113/1/27(P)
12 Po12(SU) Eth NONE Eth113/1/8(P) Eth113/1/9(P)
13 Po13(SU) Eth NONE Eth113/1/13(P) Eth113/1/14(P)
18 Po18(SU) Eth LACP Eth113/1/18(P)
19 Po19(SU) Eth LACP Eth113/1/19(P)
112 Po112(SU) Eth NONE Eth4/1(P) Eth4/2(P)
113 Po113(SU) Eth NONE Eth4/3(P) Eth4/4(D)
GLASW-5K4#
5K4# sh vpc consistency-parameters vpc 13
Legend:
Type 1 : vPC will be suspended in case of mismatch
Name Type Local Value Peer Value
------------- ---- ---------------------- -----------------------
Shut Lan 1 No No
STP Port Type 1 Default Default
STP Port Guard 1 None None
STP MST Simulate PVST 1 Default Default
mode 1 - on
Speed 1 - 1000 Mb/s
Duplex 1 - full
Port Mode 1 - trunk
Native Vlan 1 - 1
MTU 1 - 1500
Admin port mode 1 -
Allowed VLANs - 50-51,150,200-201,400 50-51,150,200-201,400
Local suspended VLANs - - -
GLASW-5K4#
12-15-2011 06:22 AM
As you've probably seen now, until you have operational members in the port-channels, you'll see the vpc as failed and "consistency check not performed" on one of the switches.
Interestingly, the vpc consistency parameters are missing the local values for 5K4. Have you tried doing a shut/no shut of po13 on 5K4, or removing and re-adding the vpc command to the port-channel?
03-14-2018 02:27 AM
Hello Chandan,
Nexus 5K VPC Consistency issue
I had faced the same issue as VPC status down , I reconfigured VPC and it worked.
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