Juniper Networks, Inc.

Euan F Mowat

Shreeram Siddhaye

Jack W Kohn

Boris Reynov

Ben T Nitzan

Mahesh Nagarajan

Gunes Aybay

Kumaran Narayanan

Surendra Patel

Srinivas Gadgil

Venkata Duggirala

Dung Viet Nguyen

Venkata Penmetsa

Bruce Thompson

A line card includes a metal frame that includes a front section, and a bottom section connected to the front section via an angled section, where the angled section results in an opening between the line card and a second line card, when the line card is installed above the second line card in a rack, and where the opening allows directed air to enter the rack from a front direction; a printed circuit board attached to the metal frame; and a group of front panel connectors attached to the front section of the metal frame.

Chassis system with front cooling intake

A portable, self-powered, interface converter for converting between Ethernet over twisted pair cables and Ethernet over optical fiber is described. In one implementation, the device may include a first interface to a power-over-Ethernet connection and a second interface to provide a connection to receive fiber optic cabling. A power-over-Ethernet (PoE) circuit may derive power from the PoE connection and output a corresponding power signal. A transcoder may perform physical layer conversion between Ethernet communications over twisted pair cabling connected to the first interface and Ethernet communications over the fiber optic cabling. The transcoder may be powered by the power signal output by the PoE circuit.

Power over ethernet electrical to optical interface converter

This disclosure describes a more efficient and configurable power allocation scheme for redundant power supply (RPS) systems used in network switches. This allocation scheme allows the system owner to assign power from a shared RPS unit to higher priority devices in any network switch in the system. This permits more granularity in assigning the RPS with backup power available to devices such as ports residing within individual switches in a multiple switch network. An efficient power allocation scheme for RPS allows the user to define the system priority of various devices for backup power according to the user's preferences. The user may assign the RPS to user-defined high priority devices in any piece of equipment. This makes RPS power allocation more flexible by offering the user more setup options for backup power.

Efficient power allocation for redundant power supply with system priority

Power over Ethernet electrical to optical interface converter

A method for cooling a system having a midplane design in which the midplane includes holes to allow air to flow via the midplane. Cards connected to the midplane have a front face that includes holes to allow the air to flow. The air flows from front to back or back to front to cool the cards connected to the midplane. A multi-slot chassis includes rails to support the cards. The rails form spaces to permit access to sockets associated with the cards to which cables may be connected. Platforms associated with the cards may permit a user to manage cables connected to the cards.

Airflow system, cable access system, and cable management system based on midplane having holes, side access of chassis, and card configuration

A bandwidth management card includes a switch control unit and multiple ports connected to one or more line cards that are separate from the bandwidth management card. The bandwidth management card further includes at least one switch, and multiple network ports, where each of the multiple network ports is connected to a respective link to at least one external network. A first switch of the at least one switch receives instructions from the switch control unit, switches a first subset of the multiple network ports through to a first port of the multiple ports based on the received instructions, and switches a second subset of the multiple network ports through to a second port of the multiple ports based on the received first instructions.

Bandwidth management switching card

A device may include polling logic configured to store a table of received addresses, sequentially receive sensor data from each address in the table via a serial data bus, store the sensor data in a memory, receive an address from a processor via a high speed data bus, and provide stored sensor data from the memory to the processor via a parallel data bus.

Growing community of inventors

Concord, MA, United States of America

Euan F Mowat