Hi,
I'm currently studdying for JNCIP-SP exam, and I'm also pretty new with all L2/L3 VPN stuff....
For my studdy I'm using Juniper V-lab, for the current lab I used the lab named "BGP - Multi-AS with Dual Route Reflectors". (I have attached the configuration and diagram with my own configuration.
I used vMX4 and vMX6 as customer network device, they there interface configured as bridge interface in VLAN 500 in access mode on either side. Both router has IRB.0 set as routing interface for vlan 500 and set respectively to 192.168.3.4/24 and 1492.168.3.6/24.
If I configure vMX1 and vMX2 facing interface to vMX4 and vMX6 with ip address 192.168.3.4/24 and 192.168.3.6/24 I can successfully ping the attached router IRB. (So vMX2 can ping vMX6 irb.0 and vMX1 can ping vMX4 irb.0) Making my bridge domain configuration on either vMX4 and 6 be validated.
After to have reconfigured ge-0/0/2.0 on vMX1 and ge-0/0/3.0 with the only configuration "encapsulation ethernet-ccc" and IP address been removed. I was expecting to be able to ping 192.168.3.6 from vMX4 sourcing ping request from 192.168.3.4. but it doesn't work.
I would like to understand why.
The router VMX5 in this configuration is not not involved yet. And the path redundancy over VMX3 is not supposed to work as well. Vmx1 and 2 do not have direct BGP relationship, the NLRI information is transmitted via the RR1 and RR2.
I also enable some traceoptions on both router vMX1&2 for the L2VPN. I have cleared tboth of them and power cycle vmx2 to make sure that you get clean traceoptions log.
I'm seeing the L2VPN connection on either vmx (1 & 2) as in UP state...
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Xine
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