When the Peeredge Switches are SBC is directly connected to the a service provider or customer’s MPLS network, every MPLS connected SIP Trunking customer is assigned we assign each customer a dedicated MPLS VRF and unique VLANs in the Peeredge datacenters which are connected to this VRF. The datacenter subnets Virtual Routing and Forwarding (VRF) instance.
If there is a network-to-network interface (NNI) connection directly into the 46 Labs data centers, then a dedicated VLAN in the Peeredge data center is connected to each customer’s VRF. The 46 Labs data center subnets (hosting Peeredge SBCs) are advertised into the customer’s VRF via multi-protocol BGP. The customer’s MPLS VRF must contain the IP routes necessary to reach the SIP Trunking endpoints. If If a media flow-around design is used, then the IP routes for all IP endpoints (i.e. Phonesphones) must also be advertised and reachable in the customer’s MPLS VRF. Since Since each MPLS customer has a dedicated VRF, MPLS networks are typically considered to be a secure network. As such, use the TCP or UDP protocols can be used to communicate with the Peeredge Switches.
MPLS circuit at each customer location
This is the most deployed MPLS network topology.
Pros
EndSBC.
If there is no NNI connection directly into the 46 Labs data centers, then the Peeredge SBC can be placed in the Service Provider or Customer network to access the MPLS network.
If there in no NNI connection directly into the 46 Labs data centers, an additional network topology is required to reach the 46 Labs cloud.
Pros
Use end-to-end quality of service (
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QoS) configurations
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to guarantee high-quality voice calls across the MPLS network.
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Support a media flow-around (anchor media disabled) design to optimize the routing of RTP/SRTP media between the customer’s endpoints (i.e. IP Phones) and the Peeredge
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SBC.
Cons
More expensive than most other network topologies
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There is usually an additional cost to directly terminate third party MPLS circuits in the 46Labs datacenters.
MPLS circuit at the customer headquarters or datacenters
This topology is typically used when a customer used another third-party WAN transport provider.
Pros
End-to-end quality of service (QOS) configurations can be used to guarantee high quality voice calls across the MPLS portion of the network.
Cons
In this design all the signaling and media traffic must transit the one or two MPLS circuits at the customer headquarters or datacenters. These circuits must be properly sized to handle all the voice traffic.
These circuits must be properly sized to handle all the signaling and media traffic.
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.