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In Multiprotocol Label Switching (MPLS), a P router or provider router is a label switch router (LSR) that functions as a transit router of the core network. [1] The P router is typically connected to one or more PE routers. Here's one scenario: A customer who has facilities in LA and Atlanta wants to connect these sites over an MPLS VPN ...
The Assigned field contains a number assigned by the service provider. Normally the Border Gateway Protocol (BGP) used by the provider's routers only looks at the four-octet IP address, but the BGP Multiprotocol Extensions allow BGP to view the entire 12-octet VPN-IPv4 address, and carry routes from multiple "address families". If the route ...
Locator/ID Separation Protocol (LISP) (RFC 6830) is a "map-and-encapsulate" protocol which is developed by the Internet Engineering Task Force LISP Working Group. [1] The basic idea behind the separation is that the Internet architecture combines two functions, routing locators (where a client is attached to the network) and identifiers (who ...
Each internal router within an area The link-state ID of the type 1 LSA is the originating router ID. Router-LSAs, describe the following types of interfaces: Point-to-point connection to another router; Connection to a transit network; Connection to a stub network (Reserved in v3) Virtual link; 2 Network-LSAs The DR
A provider edge router (PE router) is a router between one network service provider's area and areas administered by other network providers. [1] A network provider is usually an Internet service provider as well (or only that). The term PE router covers equipment capable of a broad range of routing protocols, notably:
A circuit ID is a company-specific identifier assigned to a data or voice network connection between two locations. This connection, often called a circuit, may then be leased to a customer referring to that ID. In this way, the circuit ID is similar to a serial number on any product sold from a retailer to a customer.
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IEEE 802.1ah is an amendment to the IEEE 802.1Q networking standard which adds support for Provider Backbone Bridges. It includes an architecture and a set of protocols for routing over a provider's network, allowing interconnection of multiple provider bridge networks without losing each customer's individually defined VLANs .