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Link BD_EXT_VLAN to FD_VLAN on different leaf switches

FFT
Level 1
Level 1

Hi all,

I have an L3-out (with bgp enabled on two leaf switches) on vlan-600 that connects the fabric to the legacy part of the Data Center through a VPC. On the same VPC many other vlan pass through an L2 Domain.

Now I have to extend that vlan on a port of another leaf with an External Bridged Domain but I can't find out how.

Here's the vlan on the border leaf (in red):

 

module-1# show sys int eltmc info vlan br
VLAN-Info
VlanId  HW_VlanId       Type     Access_enc Access_enc Access_in_enc Access_in_enc Fabric_enc Fabric_enc BDVlan
                                  Type                  Type                      Type
============================================================================================================
      8        9         BD_VLAN   Unknown         0     Unknown         0            VXLAN    15466401       8
      9       11         FD_VLAN    802.1q         6     Unknown         0            VXLAN        9392       8
     10       10         BD_VLAN   Unknown         0     Unknown         0            VXLAN    14680065      10
     11       12         FD_VLAN    802.1q       228     Unknown         0            VXLAN        9492      10
     12       13         BD_VLAN   Unknown         0     Unknown         0            VXLAN    16416669      12
     13       14         FD_VLAN    802.1q      3009     Unknown         0            VXLAN       16293      12
     14       15         BD_VLAN   Unknown         0     Unknown         0            VXLAN    15630221      14
     15       16         FD_VLAN    802.1q       877     Unknown         0            VXLAN       12592      14
     16       17         BD_VLAN   Unknown         0     Unknown         0            VXLAN    15859680      16
     17       18         FD_VLAN    802.1q       774     Unknown         0            VXLAN       10892      16
     18       19         BD_VLAN   Unknown         0     Unknown         0            VXLAN    14680064      18
     19       20         FD_VLAN    802.1q       605     Unknown         0            VXLAN        9592      18
     20       21         BD_VLAN   Unknown         0     Unknown         0            VXLAN    15171524      20
     21       22         FD_VLAN    802.1q       703     Unknown         0            VXLAN        8992      20
     22       23         BD_VLAN   Unknown         0     Unknown         0            VXLAN    14778356      22
     23       24         FD_VLAN    802.1q       778     Unknown         0            VXLAN        9092      22
     26       27         BD_VLAN   Unknown         0     Unknown         0            VXLAN    15007706      26
     27       34         FD_VLAN    802.1q       766     Unknown         0            VXLAN        9692      26
     28       28         BD_VLAN   Unknown         0     Unknown         0            VXLAN    16023504      28
     29       35         FD_VLAN    802.1q       638     Unknown         0            VXLAN       16092      28
     30       29         BD_VLAN   Unknown         0     Unknown         0            VXLAN    15859684      30
     31       36         FD_VLAN    802.1q      3008     Unknown         0            VXLAN       16292      30
     32       30         BD_VLAN   Unknown         0     Unknown         0            VXLAN    14909412      32
     33       37         FD_VLAN    802.1q       637     Unknown         0            VXLAN       11492      32
     34       31         BD_VLAN   Unknown         0     Unknown         0            VXLAN    15040469      34
     35       38         FD_VLAN    802.1q       785     Unknown         0            VXLAN       12692      34
     36       32         BD_VLAN   Unknown         0     Unknown         0            VXLAN    15171525      36
     37       39         FD_VLAN    802.1q      3003     Unknown         0            VXLAN       13092      36
     38       33         BD_VLAN   Unknown         0     Unknown         0            VXLAN    15990734      38
     39       40         FD_VLAN    802.1q       776     Unknown         0            VXLAN        9792      38
     41       41         BD_VLAN   Unknown         0     Unknown         0            VXLAN    16089033      41
     42       42         FD_VLAN    802.1q      3010     Unknown         0            VXLAN       17092      41
     43       43         BD_VLAN   Unknown         0     Unknown         0            VXLAN    15925210      43
     44       44         FD_VLAN    802.1q       767     Unknown         0            VXLAN       17292      43
     45       45         BD_VLAN   Unknown         0     Unknown         0            VXLAN    14745596      45
     46       46         FD_VLAN    802.1q      3011     Unknown         0            VXLAN       18192      45
     48       48         BD_VLAN   Unknown         0     Unknown         0            VXLAN    15007709      48
     49       49         FD_VLAN    802.1q       601     Unknown         0            VXLAN       18393      48
     50       50         BD_VLAN   Unknown         0     Unknown         0            VXLAN    15204294      50
     51       51         FD_VLAN    802.1q       602     Unknown         0            VXLAN       18394      50
     54       26     BD_EXT_VLAN    802.1q      3099     Unknown         0            VXLAN    15630229      54
     55       25     BD_EXT_VLAN    802.1q       600     Unknown         0            VXLAN    15564697      55

I tried to create an EPG linked to a Bridge Domain (on the same VRF as the L3-out) with the vlan 600 statically bound to the VPC on the internal leaf but the fabric encapsulation is different, so the appliances connected can't see each other:

 

module-1# show sys int eltmc info vlan br
VLAN-Info
VlanId  HW_VlanId       Type     Access_enc Access_enc Access_in_enc Access_in_enc Fabric_enc Fabric_enc BDVlan
                                  Type                  Type                      Type
============================================================================================================
     11        9         BD_VLAN   Unknown         0     Unknown         0            VXLAN    14876653      11
     12       10         BD_VLAN   Unknown         0     Unknown         0            VXLAN    15761389      12
     14       11         BD_VLAN   Unknown         0     Unknown         0            VXLAN    14778356      14
     15       12         FD_VLAN    802.1q       778     Unknown         0            VXLAN        8692      14
     16       13         BD_VLAN   Unknown         0     Unknown         0            VXLAN    15007709      16
     18       15         BD_VLAN   Unknown         0     Unknown         0            VXLAN    15204294      18
     26       17         BD_VLAN   Unknown         0     Unknown         0            VXLAN    14876654      26
     27       14         FD_VLAN    802.1q       600     Unknown         0            VXLAN       13292      26

Leaf Policy Groups of both VPCs have a global-scope L2 interface policy.

 

Is it possible to achieve what I'm trying to do or this is a feature not supported?

 

Thanks in advance!

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