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1078
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3
Helpful
7
Replies

no VTEP unicast reachability for VXLAN Flood and Learn

TheAnalyst
Level 1
Level 1

Hello everyone.

I am trying to configure VXLAN flood and learn but for some reason it doesn't work. In my verifications, unicast reachability between VTEPs are not there although I have full OSPF adjacency and PIM neighborship. Here is the configuration of one of the spines and one of the leafs. Other spines and leafs have quite similar configs with some changes in IP addressing. Also, phantom RP is configures and devices see the RP. L1 is a leaf and S1 is a spine.

What am I missing?

=======================================================

hostname L1

feature ospf
feature pim
feature interface-vlan
feature vn-segment-vlan-based
feature nv overlay


snmp-server enable traps link
ip pim ssm range 232.0.0.0/8
ip pim auto-rp listen
vlan 1,10
vlan 10
vn-segment 100010

vrf context management


interface Vlan1

interface Vlan10
no shutdown
ip address 10.0.10.254/24
ip router ospf 1 area 0.0.0.0
ip pim sparse-mode

interface nve1
no shutdown
source-interface loopback0
member vni 100010
mcast-group 239.1.1.10

interface Ethernet2/1
no switchport
mtu 9216
mac-address 0000.0000.002f
medium p2p
ip unnumbered loopback0
ip router ospf 1 area 0.0.0.0
ip pim sparse-mode
no shutdown

interface Ethernet2/2
no switchport
mtu 9216
mac-address 0000.0000.002f
medium p2p
ip unnumbered loopback0
ip router ospf 1 area 0.0.0.0
ip pim sparse-mode
no shutdown
interface loopback0
ip address 10.0.0.11/32
ip router ospf 1 area 0.0.0.0
ip pim sparse-mode
!
cli alias name wr copy run start
!
router ospf 1
router-id 10.0.0.11
==========================================================
==========================================================
hostname S1 


feature ospf
feature pim


ip pim send-rp-announce 1.1.1.2 group-list 224.0.0.0/4 scope 16 bidir
ip pim send-rp-discovery loopback1 scope 16
ip pim ssm range 232.0.0.0/8
vlan 1

vrf context management

interface mgmt0
vrf member management

interface Ethernet2/1
no switchport
mtu 9216
mac-address 0000.0000.002f
medium p2p
ip unnumbered loopback0
ip router ospf 1 area 0.0.0.0
ip pim sparse-mode
no shutdown

interface Ethernet2/2
no switchport
mtu 9216
mac-address 0000.0000.002f
medium p2p
ip unnumbered loopback0
ip router ospf 1 area 0.0.0.0
ip pim sparse-mode
no shutdown

interface Ethernet2/3
no switchport
mtu 9216
mac-address 0000.0000.002f
medium p2p
ip unnumbered loopback0
ip router ospf 1 area 0.0.0.0
ip pim sparse-mode
no shutdown

interface loopback0
ip address 10.0.0.21/32
ip router ospf 1 area 0.0.0.0
ip pim sparse-mode

interface loopback1
ip address 1.1.1.1/30
ip ospf network point-to-point
ip router ospf 1 area 0.0.0.0
ip pim sparse-mode

cli alias name wr copy run start

router ospf 1
router-id 10.0.0.21

1 Accepted Solution

Accepted Solutions

TheAnalyst
Level 1
Level 1

I finally figured it out! The config was OK and I didn't have IP reachability! I was originally using Titanium images on switches which have lots of bugs in EVE-NG!

I used nexus 9500 and 9300 images and everything is working just fine!

View solution in original post

7 Replies 7

all these feature need for VXLAN in NSK (if I am correct) add it and check again 

  1. feature vn-segment
  2. feature nv overlay
  3. feature vn-segment-vlan-based
  4. feature interface-vlan
  5. nv overlay evpn

Should I enable them on spines too?

all leaf and Spine, 

TheAnalyst
Level 1
Level 1

I finally figured it out! The config was OK and I didn't have IP reachability! I was originally using Titanium images on switches which have lots of bugs in EVE-NG!

I used nexus 9500 and 9300 images and everything is working just fine!

IP reachability between Leafs or between Leaf and Spine ? 

can I see 

show mac address-table dynamic vlan xx

 

The IP reachability between leafs and spines. Not because of the configs.

Also, now I have tenants mac address in my leaf's mac-address-table

thanks for clear first point 
for second point are the mac address add to NVE ?

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