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US 7,804,839 B2Granted
Interconnecting multiple MPLS networks
AssigneeVerizon Patent and Licensing Inc.
InventorsScott Purvis, Scott J. Hoover
Life of this patent
Estimating the term…
Abstract
A network may include a first customer edge (CE) router and a second CE router. The first CE router may run an external border gateway protocol (EBGP) to exchange routing information with a first provider edge (PE) router that is in a first multi-protocol label switching (MPLS) network and may run an interior gateway protocol (IGP) to exchange routing information with the second CE router. The second CE router may run the IGP to exchange routing information with the first CE router and may run the EBGP to exchange routing information with a second PE router in a second MPLS network.
Claims16
A method comprising:
- configuring a first customer edge (CE) router to run external border gateway protocol (EBGP) to exchange routing information with a first provider edge (PE) router that is in a first multi-protocol label switching (MPLS) network;
- setting the first CE router and a second CE router as enhanced interior gateway route protocol (EIGRP) peers;
- configuring the first CE router to run an EIGRP to exchange routing information with the second CE router;
- configuring the first CE router to perform auto-summarization of routes;
- configuring the second CE router to run the EIGRP to exchange routing information with the first CE router;
- creating, at the first CE router, quality-of-service (QoS) egress policies that convert a packet arriving at the first CE router and bearing indications of a first type of QoS to a packet bearing indications of a second type of QoS;
- configuring the second CE router to run the EBGP to exchange routing information with a second PE router in a second MPLS network;
- and
- exchanging routing information between the first CE router and the second CE router in accordance with EIGRP.
6 more elements
A network comprising:
- a first customer edge (CE) router that is connected to a first provider edge (PE) router in a first multi-protocol label switch (MPLS) network and is configured to:
- enforce, quality-of-service (QoS) egress policies that convert a packet arriving at the first CE router and bearing indications of a first type of QoS to a packet bearing a second type of QoS;
- communicate with the first PE router using an external border gateway protocol (EBGP) and to perform auto-summarization of routes;
- and
- a second CE router that is connected to a second PE router in a second MPLS network, the second CE router configured to:
- exchange routes with the second PE router based on the EBGP;
- and
- redistribute routes to the first CE router in accordance with an enhanced interior gateway route protocol (EIGRP).
5 more elements
A network comprising:
- means for configuring a first CE router to run an external border gateway protocol (EBGP) to exchange routing information with a first provider edge (PE) router that is in a first multi-protocol label switching (MPLS) network;
- means for setting the first CE router and a second CE router as enhanced interior gateway route protocol (EIGRP) peers;
- means for configuring the first CE router to run an EIGRP to exchange routing information with the second CE router;
- means for configuring the first CE router to perform auto-summarization of routes;
- means for enforcing, at the first CE router, quality-of-service (QoS) egress policies that convert a packet arriving at the first CE router and bearing indications of a first type of QoS to a packet bearing a second type of QoS;
- means for configuring the second CE router to run the EBGP to exchange routing information with a second PE router in a second MPLS network;
- and
- a line interface for exchanging routing information between the first CE router and the second CE router in accordance with the EIGRP.
5 more elements
A method comprising:
- configuring a first customer edge (CE) router to run external border gateway protocol (EBGP) to exchange routing information with a first provider edge (PE) router that is in a first multi-protocol label switching (MPLS) network;
- setting the first CE router and a second CE router as enhanced interior gateway route protocol (EIGRP) peers;
- configuring the first CE router to run an EIGRP to exchange routing information with the second CE router;
- configuring the second CE router to run the EIGRP to exchange routing information with the first CE router;
- creating, at the first CE router, quality-of-service (QoS) egress policies that convert a packet arriving at the first CE router and bearing indications of a first type of QoS to a packet bearing a second type of QoS;
- configuring the second CE router to run the EBGP to exchange routing information with a second PE router in a second MPLS network;
- and
- exchanging routing information between the first CE router and the second CE router in accordance with EIGRP.
5 more elements
Dependencies are inferred from the claim text.