Hi,
I have a strange issue that I'm not able to figure out by myself. I have 4 N3k, all the same models, all running the same software code 7.0(3)I4(7). First two I setup into vpc cluster in a blink of an eye without any issues. The other two, following the same steps, I'm not able to pair.
I have 2x10G ports connected back to back (as port-channel 2) inside vrf vpc as peer-keepalive and that works fine. Port-channel connected as Po1(RU).
interface port-channel2
no switchport
speed 10000
vrf member vpc
ip address 100.64.0.1/30
Then I have vpc domain coniguration as follow:
s-core-sdc-1# sh run vpc
version 7.0(3)I4(7)
feature vpc
vpc domain 1
peer-switch
system-priority 100
peer-keepalive destination 100.64.0.2 source 100.64.0.1 vrf vpc
peer-gateway
auto-recovery
ip arp synchronize
s-core-sdc-2# sh run vpc
version 7.0(3)I4(7)
feature vpc
vpc domain 1
peer-switch
system-priority 200
peer-keepalive destination 100.64.0.1 source 100.64.0.2 vrf vpc
peer-gateway
auto-recovery
ip arp synchronize
Next thing I have 2x40G ports connected back to back as L2 trunk (Port-channel 1) for vpc peer-link and this connection works perfectly fine ... untill I put vpc-peerlink command on it. Then I have error massage:
2017 Dec 19 10:34:44 s-core-sdc-2 %ETHPORT-3-IF_ERROR_VLANS_SUSPENDED: VLANs 1,10,42-44,50-51,997,999 on Interface port-channel1 are being suspended. (Reason: vPC peer is not reachable over cfs)
2017 Dec 19 10:34:45 s-core-sdc-2 %ETHPORT-3-IF_ERROR_VLANS_SUSPENDED: VLANs 1,10,42-44,50-51,997,999 on Interface port-channel1 are being suspended. (Reason: vPC domain/system id mismatch)
After that vpc is down and I can't do much about it ....
s-core-sdc-1# sh vpc consistency-parameters global
Legend:
Type 1 : vPC will be suspended in case of mismatch
Name Type Local Value Peer Value
------------- ---- ---------------------- -----------------------
Vlan to Vn-segment Map 1 No Relevant Maps No Relevant Maps
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
Nve Admin State, Src Admin 1 None None
State, Secondary IP, Host
Reach Mode
Nve Vni Configuration 1 None None
VTP domain 2 xxx.sdc xxx.sdc
VTP version 2 2 2
VTP mode 2 Transparent Transparent
VTP password 2
VTP pruning status 2 Disabled Disabled
Allowed VLANs - 1,10,42-44,50-51,997,9 -
99
Local suspended VLANs - 1,10,42-44,50-51,997,9 -
99
s-core-sdc-1# sh vpc consistency-parameters vlans
Name Type Reason Code Pass Vlans
------------- ---- ---------------------- -----------------------
Vlan to Vn-segment Map 1 success 0-4095
STP Mode 1 success 0-4095
STP Disabled 1 success 0-4095
STP MST Region Name 1 success 0-4095
STP MST Region Revision 1 success 0-4095
STP MST Region Instance to 1 success 0-4095
VLAN Mapping
STP Loopguard 1 success 0-4095
STP Bridge Assurance 1 success 0-4095
STP Port Type, Edge 1 success 0-4095
BPDUFilter, Edge BPDUGuard
STP MST Simulate PVST 1 success 0-4095
Nve Admin State, Src Admin 1 success 0-4095
State, Secondary IP, Host
Reach Mode
Nve Vni Configuration 1 success 0-4095
Pass Vlans - 0-4095
Any ideas ???
