Patents by Inventor Viswanathan Raman

Viswanathan Raman has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Multicast high availability enhancements for non-stop forwarding
    Patent number: 8345536
    Abstract: A distributed-forwarding router platform contains a master and a standby route processing manager (RPM). The master RPM uses dynamic internal routing codes to facilitate the replication of multicast packets within the router. As internal routing codes are assigned, the assignments are shared with the standby RPM. Should the standby RPM have to take over as the master RPM, the new master consults the internal routing codes assigned by the previous master as the new master builds multicast state, insuring that the internal routing codes the new master assigns are consistent with those used by the prior master. This allows the multicast forwarding plane to remain available during RPM failover, without a shutdown or unstable period while the new master RPM propagates internal routing codes. Other embodiments are also described and claimed.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: January 1, 2013
    Assignee: Force10 Networks, Inc.
    Inventors: Srikanth Rao, Viswanathan Raman