STATEFUL CONNECTION OPTIMIZATION OVER STRETCHED NETWORKS USING SPECIFIC PREFIX ROUTES
First Claim
1. A computer-implemented method of optimizing connections over an extended network created by bridging a first network in a first computing system, a second network in a second computing system, and a wide area network using a first bridging appliance in the first computing system and a second bridging appliance in the second computing system, comprising:
- configuring the first bridging appliance to;
block packets with a source media access control (MAC) address belonging to a first router in the first computing system, andblock address resolution protocol (ARP) requests for a gateway Internet Protocol (IP) address from and to the first network;
configuring the first router in the first computing system to have a same gateway IP address as a second router in the second computing system that is a default gateway of the extended network;
injecting, into the first router, one or more specific prefix routes for one or more respective virtual computing instances on the first network; and
propogating the one or more specific prefix routes to the second router.
2 Assignments
0 Petitions
Accused Products
Abstract
Techniques for stateful connection optimization over stretched networks are disclosed. Such stretched networks may extend across both a data center and a cloud. In one embodiment, configuration changes are made to cloud layer 2 (L2) concentrators used by extended networks and a cloud router such that the L2 concentrators block packets with the cloud router'"'"'s source MAC address and block address resolution protocol (ARP) requests for a gateway IP address from/to cloud networks that are part of the extended networks. Further, the cloud router is configured with the same gateway IP address as that of a default gateway router in the data center and responds to ARP requests for the gateway IP address with its own MAC address. In addition, specific prefix routes (e.g., /32 routes) for virtual computing instances on route optimized networks in the cloud are injected into the cloud router and propagating to a data center router.
-
Citations
20 Claims
-
1. A computer-implemented method of optimizing connections over an extended network created by bridging a first network in a first computing system, a second network in a second computing system, and a wide area network using a first bridging appliance in the first computing system and a second bridging appliance in the second computing system, comprising:
-
configuring the first bridging appliance to; block packets with a source media access control (MAC) address belonging to a first router in the first computing system, and block address resolution protocol (ARP) requests for a gateway Internet Protocol (IP) address from and to the first network; configuring the first router in the first computing system to have a same gateway IP address as a second router in the second computing system that is a default gateway of the extended network; injecting, into the first router, one or more specific prefix routes for one or more respective virtual computing instances on the first network; and propogating the one or more specific prefix routes to the second router. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A non-transitory computer-readable storage medium containing a program which, when executed by one or more processors, performs operations for optimizing connections over an extended network created by bridging a first network in a first computing system, a second network in a second computing system, and a wide area network using a first bridging appliance in the first computing system and a second bridging appliance in the second computing system, the operations comprising:
-
configuring the first bridging appliance to; block packets with a source media access control (MAC) address belonging to a first router in the first computing system, and block address resolution protocol (ARP) requests for a gateway Internet Protocol (IP) address from and to the first network; configuring the first router in the first computing system to have a same gateway IP address as a second router in the second computing system that is a default gateway of the extended network; injecting, into the first router, one or more specific prefix routes for one or more respective virtual computing instances on the first network; and propogating the one or more specific prefix routes to the second router. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
-
-
19. A system, comprising:
-
a processor; and a memory, wherein the memory includes a program executable in the processor to perform operations for optimizing connections over an extended network created by bridging a first network in a first computing system, a second network in a second computing system, and a wide area network using a first bridging appliance in the first computing system and a second bridging appliance in the second computing system, the operations comprising; configuring the first bridging appliance to; block packets with a source media access control (MAC) address belonging to a first router in the first computing system; and block address resolution protocol (ARP) requests for a gateway Internet Protocol (IP) address from and to the first network, configuring the first router in the first computing system to have a same gateway IP address as a second router in the second computing system that is a default gateway of the extended network, injecting, into the first router, one or more specific prefix routes for one or more respective virtual computing instances on the first network, and propogating the one or more specific prefix routes to the second router. - View Dependent Claims (20)
-
Specification