Arrcus Inc.

Telefonaktiebolaget Lm Ericsson (publ)

Sridhar Pitchai

Keyur Patel

Nalinaksh Pai

Lalit Kumar

Kalyani Rajaraman

Vikram Ragukumar

Robert Austein

Ebben Aries

Randall Bush

Rajkumar Gurusamy

Ashutosh Shanker

Mark Hlady

Selvam Ramanathan

A logical router includes disaggregated network elements that function as a single router and that are not coupled to a common backplane. The logical router includes spine elements and leaf elements implementing a network fabric with front panel ports being defined by leaf elements. Control plane elements program the spine units and leaf to function a logical router. The control plane may define operating system interfaces mapped to front panel ports of the leaf elements and referenced by tags associated with packets traversing the logical router. Redundancy and checkpoints may be implemented for a route database implemented by the control plane elements. The logical router may include a standalone fabric and may implement label tables that are used to label packets according to egress port and path through the fabric.

Logical router comprising disaggregated network elements

A method is described in a network element for supporting flexible lookup keys in a software-defined network. The method includes receiving a packet to be forwarded and determining a next hop for the packet, which includes parsing the packet to identify a superkey comprising a plurality of header field values of the packet; identifying a superkey mask value and a superkey offset value for a first lookup table of a set of one or more lookup tables; generating a table key for the first lookup table based upon the superkey mask value, the superkey offset value, and the superkey; and performing a lookup in the first lookup table using the table key. The lookup identifies an entry of the first lookup table indicating the next hop for the packet. The packet may then be forwarded to the next hop.

Method, apparatus, and system for supporting flexible lookup keys in software-defined networks

A method is implemented by a network device for a fast traffic recovery process for the virtual redundant router protocol (VRRP), where improved speed in a switchover from a master VRRP router to a backup VRRP router is obtained by synchronizing an address resolution protocol (ARP) cache between the master VRRP router and the backup VRRP router such that after the switchover the backup VRRP router functions as a new master VRRP router and does not need to relearn media access control (MAC) address to Internet Protocol (IP) mappings of hosts using the new master VRRP as a gateway. The process involves receiving an ARP entry on an interface of the network device and checking whether the network device is configured as the master VRRP router. The process then sends a gratuitous ARP message to the backup VRRP router in response to the network device being the master VRRP router.

Fast traffic recovery in VRRP based routers

Growing community of inventors

San Jose, CA, United States of America

Sridhar Pitchai