Networks across L3VPN not Working.. HELP

[nakulvkumar]

All,

Attaching below the diagram of the network which I am trying to configure, the configuration is as follows: An L3VPN from a Service Provider has been configured and working fine, we are connecting to the Provider managed CE through a 2811 routers, which is connected to two 3750s with L3 functionality, this is further connected to a pair of two stacked 3750s with only L2 functionlity. On this L2 switch stack we have configured 4 Vlans - 2,3,4 and 5, which we want to interconnect with network in Country B across the L3 VPN.

In Country B, the setup is as shown, where "XY" are connected to 3750s country B via IP interfaces, and so on...

We are using only static routing... Vlan IP interfaces (gateways) are created on 3750s L3 country A, L2 country A and L3 Country A are connected thru Trunked interfaces..

Question is, why are we not able to make the Nodes in Country B communicate with Nodes in Country A...

Also I want to configure a IPSec tunnel as a backup for the L3VPN, suggest on that too...

Kindly write back for further clarifications...

Thanks,

Nakul Kumar

[alfredshum]

If you're connecting via your ISP's MPLS network but you're not running dynamic routing protocol with the MPLS network, then you'll have to ask your ISP to include your local subnets in all locations and include them in their routing tables in the MPLS network.

You'll also probably need a dynamic routing protocol to setup redundant paths between sites.