Nexus 9372 Vxlan VNI number limitation

[C3H5N3O9]

Hello all,

We use somes Nexus 9372PX switches in VXLAN/MP-BGP EVPN topology and we are facing a strange limitation with VNI Number selection can't below 4096, invalid message look like this :

switch(config-evpn)# vni 20 l2
                        ^
% Invalid number, range is (4096:16777215) at '^' marker.

 
We used VNI number under 4096 in our IP Fabric and we don't have this limitation with Nexus 9236C. So i have two questions :

1) is it possible to deactivate this limitation by some magical CLI keyword ?
2) is it just NX-OS version limitation ?

Software
BIOS: version 07.51
NXOS: version 7.0(3)I4(6)
BIOS compile time: 02/15/2016
NXOS image file is: bootflash:///nxos.7.0.3.I4.6.bin
NXOS compile time: 3/9/2017 22:00:00 [03/10/2017 07:05:18]


Hardware
cisco Nexus9000 C9372PX chassis

[Andrea Testino · Accepted solution]

Hi there,

I believe the full range was added in 7.0(3)I7(x) -- Sample from my lab:

##########################
NXOS: version 7.0(3)I4(7)    
##########################

N9K-VTEP(config)# vlan 10
N9K-VTEP(config-vlan)# vn-segment ?
  <0-0>            Segment-id
  <4096-16777214>  Segment-id     <<<<<

N9K-VTEP(config-vlan)# vn-segment 1000
                              ^
% Invalid number, range is (4096:16777214) at '^' marker.

N9K-VTEP(config)# evpn
N9K-VTEP(config-evpn)# vni ?
  <4096-16777215>  Specify VNI ID    <<<<<

N9K-VTEP(config-evpn)# vni 1000 l2
                       ^
% Invalid number, range is (4096:16777215) at '^' marker.

########################
NXOS: version 7.0(3)I7(6)    
#########################

N9K-VTEP(config)# vlan 10
N9K-VTEP(config-vlan)# vn-segment ?
  <0-0>         Segment-id
  <1-16777214>  Segment-id    <<<<<

N9K-VTEP(config-vlan)# vn-segment 1000
N9K-VTEP(config-vlan)# exit

N9K-VTEP(config)# evpn
N9K-VTEP(config-evpn)# vni ?
  <1-16777214>  Specify VNI ID    <<<<<

N9K-VTEP(config-evpn)# vni 1000 l2
N9K-VTEP(config-evpn-evi)#     rd auto

N9K-VTEP(config-evpn-evi)# route-target import auto
N9K-VTEP(config-evpn-evi)# route-target export auto
<snip>

NX-OS 7.0(3)I7(6) is our current long-lived and recommended release as well.

Hope that helps.

[C3H5N3O9]

Thanks Andrea for this useful and quick answer.