Design of a Diversified Router: Project Assignments and Status Updates John DeHart jdd@arl.wustl.edu http://www.arl.wustl.edu/arl

People Dave Zar Mike Wilson Sailesh Kumar Amy Freestone Fred Kuhns Brandon Heller John DeHart Jing Lu Eric Lee Available for consultation: Ben Wun Haoyu Song Charlie Wiseman

Project Assignments Rx (LC and NPE) : Dave Tx (LC and NPE) : Dave Names in parentheses are staff who are to stay in touch with the work on that block to give us continuity after the student finishes work on the project, graduates or moves on to something else. Rx (LC and NPE) : Dave Tx (LC and NPE) : Dave QM/Scheduler (LC and NPE) : Sailesh and Amy (FredK) Lookup (LC and NPE) : John Parse (NPE: IPv4 and MPLS) : Brandon and Jing (John) Hdr Format (NPE: IPv4 and MPLS) : Jing and Brandon (John) Jing, Brandon and John will discuss how to divide up Parse and Hdr Format blocks: Brandon do both for IPv4 and Jing do both for MPLS or Brandon do Parse for both IPv4 and MPLS and Jing do Hdr Format for both IPv4 and MPLS. or … Hdr Format (LC) : Dave KeyExtractor (LC) : Mike (John) Loopback Block (If needed for Nov.) : John Control Plane : FredK + others as needed As we get a better sense of what needs to be done on the control side people who are working on individual blocks may work on the corresponding parts of the control infrastructure. Miscellaneous HW Details : Dave Blocks not needed for November 2006 Demo: RateMonitor (LC): Not needed by November Demo Demux (NPE): Not needed by November Demo

4/25/06 Update JDD had meetings with each person or group working on blocks in the designs (except Hdr Format on LC – Dave): Rx/Tx: Dave QM: Amy and Sailesh (with FredK) Parse and Hdr Format (MR): Jing and Brandon Key Extract: Mike Major Issues raised or outstanding: Having two TX blocks, one on each NP in a single blade trying to send to the same physical interface. How is flow control and rate control handled between the two? Handling of Flow Control between Tx and QM How does TX know that a Physical Interface on the RTM is overloaded? Can we modify the way the existing Tx indicates flow control to QM? GM Filter handling in Lookup for MRs TCAM Mask Registers will be a scarce resource for this, especially if we try to support general Transport Port ranges in GM-like keys. Per port scheduling structure for QM/Scheduler. Per Port rate control in QM/Scheduler Per Port flow control in QM/Scheduler Dequeue interrupted by flow control or rate control?

4/25/06 Update QM/Scheduler Status: Amy Sailesh Scheduling data structure block Sailesh Q_Structures Block and Overall Control code “Project” management