Routing

Hi, 

I currently studdying for Junos certification exam.  For my studdy process, I'm using Juniper VLAB to test my knowledge and what I understood.

In the current issue, I'm trying to understand bridging process on MX platform.  For this lab session, I had used the topology named  "BGP - Multi-AS with Dual Route Reflectors".

All routeur been erased and I apply the configuration attached to this post.  I already post something about this before, but I was mixing some concept so it wasn't work at all.   Now, I have some interesting results, but it still not working completely.

For now I had only configured the following host : vMX1, vMX2, vRR1 & vRR2.

Right now vRR1 can :

• ping 10.100.111.111 sourcing 10.100.111.1
• ping 10.100.222.222 sourcing 10.100.222.1
• ping 10.100.111.2 sourcing 10.100.111.1
• ping 10.100.222.2 sourcing 10.100.222.1

The vRRx router were in place to try to undersand where the connectivity was failling at the beginning.

But not, noting involving routing through the trunk link GE-0/0/0, but since route to the other network is not configured this explanable.

Same as for vRR2.

But what is not explainable is : vMX1  can't ping any L3 interface on vMX2, and the reserve case is also true.

On both router I'm getting MAC address of the remote workstation when I ping the L2 interface from vRR1 to vRR2  and vice versa.

I past I was suspecting a compatibility issue on Juniper VLAB for L2 bridging fonction for vMX devices. 

Here their answer : 

"Thank you for reaching out! Yes, you should be able to do L2 with vMX's. I can see that you have VLAN configuration as well. On JCL however, the virtual devices are deployed on ESXi which drops frames with TPID value of 0x8100. We do have a workaround for this: you can configure a TPID value of 0x9100 which will not be dropped. I have attached a document that goes over an example of such configuration. Please let me know if you have any questions or face any issues!"

They provide me a workaround (attached to this post (vLabs L2 workaround.docx))  for some reason I wasn't to implement it as explained in the document.  As I understand, my case is like the "Config on vMX-A1" whith in the word document.

So my topology need this confuiguration based on the document :  (As I understand)

for Interface trunk configuration : 

set interfaces ge-0/0/0 gigether-options ethernet-switch-profile tag-protocol-id 0x9100
set interfaces ge-0/0/0 unit 100 vlan-tags outer 0x9100.100
set interfaces ge-0/0/0 unit 200 vlan-tags outer 0x9100.200
set interfaces ge-0/0/0 unit 0 family bridge interface-mode trunk
set interfaces ge-0/0/0 unit 0 family bridge vlan-id-list [ 100 200 ]

------------------------------
Xine
------------------------------