В целом настройка как в мануале, за исключением одного.

В этом примере "mode" и далее - лишнее

Правильная настройка: 

Interface Ethernet1/0/1
xconnect nvi 1

xconnect nvi 1 - это будет по умолчанию mode ethernet , интерфейс будет ожидать нетегированный трафик.

Если же использовать mode vlan svid <X>, то нужно отдавать с конечного узла тегированный трафик с vlan <X>.

Ниже конфиги с ошибкой.


vector-199_7200_VTEP1#sh run
!!
switch convert mode stand-alone
vsf member 1
vsf port-group 1
 vsf port-group Interface Ethernet1/31/1
!
vsf port-group 2
 vsf port-group Interface Ethernet1/32/1
!
!!
!
no service password-encryption
!
hostname vector-199_7200_VTEP1
sysLocation 302028, Orel, Razdolnaya, 76b3, 69, Russia
sysContact 8(800)302-42-57
!
authentication logging enable
!
username admin privilege 15 password 0 password
!
authentication line console login local
!
!
!
!
!
ssh-server enable
ssh-server timeout 300
!
info-center logfile 4 config count 40960 flash logfile.log
info-center logfile 4 output-enable
info-center logbuffer match level debugging 
info-center logfile 4 match level warnings 
!
!
!
lldp enable
spanning-tree
 spanning-tree mst 0 priority 24576
!
!
!
Interface Ethernet0
 ip address 192.168.72.2 255.255.255.0
!
!
!
!
vlan 1;10-11;21;100 
!
nvi 11
 vxlan-id 11
 description VM1
!
nvi 21
 vxlan-id 21
 description VM2
!
!
Interface Ethernet1/1/1
 speed-duplex force10g-full
 description VM1
 transceiver-monitoring enable
 switchport access vlan 11
 xconnect nvi 11 mode vlan svid 11 
!
Interface Ethernet1/1/2
 speed-duplex force10g-full
 description VM2
 switchport access vlan 21
 xconnect nvi 21 mode vlan svid 21 
!
Interface Ethernet1/1/3
 speed-duplex force10g-full
!
Interface Ethernet1/1/4
 speed-duplex force10g-full
!
Interface Ethernet1/2/1
!
Interface Ethernet1/3/1
!
Interface Ethernet1/4/1
!
Interface Ethernet1/5/1
!
Interface Ethernet1/6/1
!
Interface Ethernet1/7/1
!
Interface Ethernet1/8/1
!
Interface Ethernet1/9/1
!
Interface Ethernet1/10/1
!
Interface Ethernet1/11/1
!
Interface Ethernet1/12/1
!
Interface Ethernet1/13/1
!
Interface Ethernet1/14/1
!
Interface Ethernet1/15/1
 description 7200-to-7200 (WAN)
 switchport access vlan 10
!
Interface Ethernet1/16/1
 description connect_to_7200_(.3)
 shutdown
!
Interface Ethernet1/17/1
!
Interface Ethernet1/18/1
!
Interface Ethernet1/19/1
!
Interface Ethernet1/20/1
!
Interface Ethernet1/21/1
!
Interface Ethernet1/22/1
!
Interface Ethernet1/23/1
!
Interface Ethernet1/24/1
!
Interface Ethernet1/25/1
!
Interface Ethernet1/26/1
!
Interface Ethernet1/27/1
!
Interface Ethernet1/28/1
!
Interface Ethernet1/29/1
!
Interface Ethernet1/30/1
!
Interface Ethernet1/31/1
 description Stack_Port
 shutdown
!
Interface Ethernet1/32/1
 description Stack_Port
 shutdown
!
interface Vlan1
 ip address 192.168.1.1 255.255.255.0
!
interface Vlan10
 description 7200-to-7200 (WAN)
 ip address 100.1.1.1 255.255.255.0
!
interface Vlan100
 ip address 192.168.100.72 255.255.255.0
!
interface Nve1
 description VTEP1
 nve mode vxlan
 source 100.1.1.1
 destination 100.1.1.2
 join nvi 11
 join nvi 21
!
!
no login
!
end

vector-199_7200_VTEP2#sh run
!!
switch convert mode stand-alone
vsf member 2
vsf priority 32
vsf port-group 1
 vsf port-group Interface Ethernet1/32/1
!
vsf port-group 2
 vsf port-group Interface Ethernet1/31/1
!
!!
!
no service password-encryption
!
hostname vector-199_7200_VTEP2
sysLocation 302028, Orel, Razdolnaya, 76b3, 69, Russia
sysContact 8(800)302-42-57
!
authentication logging enable
!
username admin privilege 15 password 0 password
!
authentication line console login local
!
!
!
!
!
ssh-server enable
ssh-server timeout 300
!
info-center logfile 4 config count 40960 flash logfile.log
info-center logfile 4 output-enable
info-center logfile 4 match level warnings 
!
!
!
lldp enable
spanning-tree
!
!
!
Interface Ethernet0
 ip address 192.168.72.3 255.255.255.0
!
!
!
!
vlan 1;10-11;21;100 
!
nvi 11
 vxlan-id 11
 description VM3
!
nvi 21
 vxlan-id 21
 description VM4
!
!
Interface Ethernet1/1/1
 speed-duplex force10g-full
!
Interface Ethernet1/1/2
 speed-duplex force10g-full
!
Interface Ethernet1/1/3
 speed-duplex force10g-full
 description VM3
 switchport access vlan 11
 xconnect nvi 11 mode vlan svid 11 
!
Interface Ethernet1/1/4
 speed-duplex force10g-full
 description VM4
 switchport access vlan 21
 xconnect nvi 21 mode vlan svid 21 
!
Interface Ethernet1/2/1
!
Interface Ethernet1/2/2
!
Interface Ethernet1/2/3
!
Interface Ethernet1/2/4
!
Interface Ethernet1/3/1
!
Interface Ethernet1/4/1
!
Interface Ethernet1/5/1
!
Interface Ethernet1/6/1
!
Interface Ethernet1/7/1
!
Interface Ethernet1/8/1
!
Interface Ethernet1/9/1
!
Interface Ethernet1/10/1
!
Interface Ethernet1/11/1
!
Interface Ethernet1/12/1
!
Interface Ethernet1/13/1
!
Interface Ethernet1/14/1
!
Interface Ethernet1/15/1
 description 7200-to-7200 (WAN)
 switchport access vlan 10
!
Interface Ethernet1/16/1
 description connect_to_7200_(.2)
 shutdown
!
Interface Ethernet1/17/1
!
Interface Ethernet1/18/1
!
Interface Ethernet1/19/1
!
Interface Ethernet1/20/1
!
Interface Ethernet1/21/1
!
Interface Ethernet1/22/1
!
Interface Ethernet1/23/1
!
Interface Ethernet1/24/1
!
Interface Ethernet1/25/1
!
Interface Ethernet1/26/1
!
Interface Ethernet1/27/1
!
Interface Ethernet1/28/1
!
Interface Ethernet1/29/1
!
Interface Ethernet1/30/1
!
Interface Ethernet1/31/1
 description Stack_Port
 shutdown
!
Interface Ethernet1/32/1
 description Stack_Port
 shutdown
!
interface Vlan1
 ip address 192.168.1.1 255.255.255.0
!
interface Vlan10
 description 7200-to-7200 (WAN)
 ip address 100.1.1.2 255.255.255.0
!
interface Vlan100
 ip address 192.168.100.73 255.255.255.0
!
interface Nve1
 description VTEP2
 nve mode vxlan
 source 100.1.1.2
 destination 100.1.1.1
 join nvi 11
 join nvi 21
!
!
no login
!
end