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N7K Type-2 consistency

alanjbrown
Level 2
Level 2

Can anyone tell me what this incompatible message means, impact and how to resolve ?

Version: n7000-s1-dk9.4.2.4.bin

MYN7K# show vpc brief
Legend:
                (*) - local vPC is down, forwarding via vPC peer-link

vPC domain id                            : 20 
Peer status                               : peer adjacency formed ok     
vPC keep-alive status                 : peer is alive                
Configuration consistency status: success
Type-2 consistency status         : failed
Type-2 consistency reason        : SVI type-2 configuration incompatible

thanks,

Al

1 Accepted Solution

Accepted Solutions

Chad Peterson
Cisco Employee
Cisco Employee

Hi Al,


Can you send "show vpc consistency-parameters global".  Type-2 error like this should refer to a configuration mismatch.  Likely you are either missing an SVI on 1 switch, or an SVI is in a down state on one where other is up.

Chad

View solution in original post

5 Replies 5

Chad Peterson
Cisco Employee
Cisco Employee

Hi Al,


Can you send "show vpc consistency-parameters global".  Type-2 error like this should refer to a configuration mismatch.  Likely you are either missing an SVI on 1 switch, or an SVI is in a down state on one where other is up.

Chad

Chad,

As requested:

MYN7Kr1# show vpc consistency-parameters global

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

Name                        Type  Local Value            Peer Value            
-------------               ----  ---------------------- -----------------------
STP Mode                    1     Rapid-PVST             Rapid-PVST           
STP Disabled                1     None                   None                 
STP MST Region Name         1     ""                     ""                   
STP MST Region Revision     1     0                      0                    
STP MST Region Instance to  1                                                 
VLAN Mapping                                                                 
STP Loopguard               1     Disabled               Disabled             
STP Bridge Assurance        1     Enabled                Enabled              
STP Port Type, Edge         1     Normal, Disabled,      Normal, Disabled,    
BPDUFilter, Edge BPDUGuard        Disabled               Disabled             
STP MST Simulate PVST       1     Enabled                Enabled              
Interface-vlan admin up     2     101-103,115-116,130-13 100-103,115-116,130-13
                                  5,140-142,145-146,150- 5,140-142,145-146,150-
                                  153,160,165,170,175,18 153,160,165,170,175,18
                                  0,190-197,201,241,400- 0,190-197,201,241,400-
                                  407,420,997            407,420,997          
Allowed VLANs               -     1,100-104,115-116,130- 1,100-104,115-116,130-
                                  135,140-142,145-146,15 135,140-142,145-146,15
                                  0-153,160,165,170,175, 0-153,160,165,170,175,
                                  180,190-197,200-201,24 180,190-197,200-201,24
                                  1,302,400-407,420,500- 1,302,400-407,420,500-
                                  504,997,999            504,997,999          
Local suspended VLANs       -     -                      -                

Sorry about the format!

The only difference is the Vlans 100 and 101

MYN7Kr1# show int vlan 100
Vlan100 is administratively down, line protocol is down  

MYN7Kr1# show int vlan 101
Vlan101 is up, line protocol is up

MYN7Kr2# show int vlan 100
Vlan100 is up, line protocol is up

MYN7Kr2# show int vlan 101
Vlan101 is up, line protocol is up

If we enable the Vlan 100 then we have had some routing issues so it has remained shutdown with everthing working. So that's probably the cause but is it important and does it affect my network that we are in this inconsistency state?

thks

Al

hello Alan ,

I have remarked the same issue when I was adding some new VLAN-ids to the VPC config and then configured the SVIs on top of it.

The missing SVIs are only the VL226 and VL126  from the VPC point of view ( i.e. configured only on one of the peer VPC switches ),  even if we still have other SVIs ( VL100 and VL200 ) that are enabled on one of the peer vpc switches.  We can note also that in terms of the forwording it works fine. If you want to establish OSPF adjacency with the 3rd party switch-router then the adjacency will also come up ( at least in the 5.1.2 NX-OS ) .

Cheers ,

Michal

##########################################################################################


NX7K-2-edge-2-2# sh vpc consistency-parameters global


    Legend:

        Type 1 : vPC will be suspended in case of mismatch


Name                        Type  Local Value            Peer Value            

-------------               ----  ---------------------- -----------------------

STP Mode                    1     Rapid-PVST             Rapid-PVST           

STP Disabled                1     None                   None                 

STP MST Region Name         1     ""                     ""                   

STP MST Region Revision     1     0                      0                    

STP MST Region Instance to  1                                                 

VLAN Mapping                                                                 

STP Loopguard               1     Disabled               Disabled             

STP Bridge Assurance        1     Disabled               Disabled             

STP Port Type, Edge         1     Normal, Disabled,      Normal, Disabled,    

BPDUFilter, Edge BPDUGuard        Disabled               Disabled             

STP MST Simulate PVST       1     Enabled                Enabled              

Interface-vlan admin up     2     100,122,200,226        100,122,126,200      

Interface-vlan routing      2     100,122,200,226        100,122,126,200      

capability                                                                    

Allowed VLANs               -     100,122,126,200,226,30 100,122,126,200,226,30

                                  0                      0                    

Local suspended VLANs       -     -                      -                    

NX7K-2-edge-2-2#

NX7K-2-edge-2-2# sh ip int brief

IP Interface Status for VRF "default"(1)

Interface            IP Address      Interface Status

Vlan100              100.100.100.22  protocol-up/link-up/admin-up      

Vlan122              122.122.122.22  protocol-up/link-up/admin-up      

Vlan226              26.26.26.22     protocol-up/link-up/admin-up      

NX7K-2-edge-2-2#

NX7K-1-edge-1-2(config)# sh vpc consistency-parameters global


    Legend:

        Type 1 : vPC will be suspended in case of mismatch


Name                        Type  Local Value            Peer Value            

-------------               ----  ---------------------- -----------------------

STP Mode                    1     Rapid-PVST             Rapid-PVST           

STP Disabled                1     None                   None                 

STP MST Region Name         1     ""                     ""                   

STP MST Region Revision     1     0                      0                    

STP MST Region Instance to  1                                                 

VLAN Mapping                                                                 

STP Loopguard               1     Disabled               Disabled             

STP Bridge Assurance        1     Disabled               Disabled             

STP Port Type, Edge         1     Normal, Disabled,      Normal, Disabled,    

BPDUFilter, Edge BPDUGuard        Disabled               Disabled             

STP MST Simulate PVST       1     Enabled                Enabled              

Interface-vlan admin up     2     100,122,126,200        100,122,200,226      

Interface-vlan routing      2     100,122,126,200        100,122,200,226      

capability                                                                    

Allowed VLANs               -     100,122,126,200,226,30 100,122,126,200,226,30

                                  0                      0                    

Local suspended VLANs       -     -                      -                    

NX7K-1-edge-1-2(config)# sh ip int brief

IP Interface Status for VRF "default"(1)

Interface            IP Address      Interface Status

Vlan122              122.122.122.12  protocol-up/link-up/admin-up      

Vlan126              126.126.126.12  protocol-up/link-up/admin-up      

Vlan200              200.200.200.12  protocol-up/link-up/admin-up      

NX7K-1-edge-1-2(config)#

Chad,

Thanks for the help. We just match the SVI status the same on both vPC peers and everything resolved.

MYN7Kr2# show vpc brief

Legend:

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

vPC domain id                   : 20 

Peer status                     : peer adjacency formed ok     

vPC keep-alive status           : peer is alive                

Configuration consistency status: success

Type-2 consistency status       : success

vPC role                        : secondary                    

Number of vPCs configured       : 6  

Peer Gateway                    : Disabled

thks

ank.narang
Community Member

Hi All,

one quick question. May be its related this post.

We have 2 box with VPC config  N5K (5.0)  . we are planning to add Vlan on box. what is best practice for this.is there any thing break when we add on one box. and then other.  in time between do we find any abnormal behaviour in switch ?

Thanks &  Regards

A.N