Juniper Networks, Inc.

Timothy Noel Thathapudi

Siddharth Tuli

Srinivasa Dharwad Satyanarayana

Srinivasa Satyanarayana

A system is configured to: transmit requests to a first device and a second device; receive a first reply from the first device in response to one of the requests; determine an address of the first device based on the first reply; assign a first port to a first network when the first device is a first one of one or more devices that replied to the requests and have a same address as the first device; receive a second reply from the second device in response to another one of the requests; assign a second port to a second network when the address of the second device is the same as the address of the first device; and reassign the second port, from the second network, to the first network when a failure of the first device occurs.

Switch provided failover

In general, the invention is directed to techniques for identifying memory overruns. For example, as described herein, a device includes a main memory that enables an addressable memory space for the device. A plurality of memory pages each comprises a separate, contiguous block of addressable memory locations within the addressable memory space. The device also includes a memory manager comprising a secure pool allocator that assigns a secure pool size value to a first one of the plurality of memory pages. The secure pool size value defines a plurality of protected memory spaces in the first memory page that partition the first memory page into a plurality of secure objects. The device also includes a memory management unit comprising secure pool logic that determines, based on the secure pool size value, whether a memory address is an address of one of the protected memory spaces in the first memory page.

Secure pool memory management

Intermediate network devices, such as routers, are configured to discover a maximum transmission unit (MTU) for a path between two network endpoints by removing data from packets when the packet size exceeds a link MTU to a next hop. An example intermediate network device includes a forwarding engine to determine an interface card through which to forward a received packet and to determine a link MTU for a link corresponding to the interface card, wherein the received packet comprises a header and a payload, the header indicating not to fragment the packet, and a PMTU determination module to determine whether a size of the received packet exceeds the link MTU, and to remove a portion of data from the payload of the packet, discard the removed portion, and adjust the header of the packet according to the removed portion when the size of the received packet exceeds the link MTU.

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Bengaluru, India

Timothy Noel Thathapudi