公开(公告)号：US20180019947A1

公开(公告)日：2018-01-18

申请号：US15626135

申请日：2017-06-18

Applicant: MELLANOX TECHNOLOGIES TLV LTD.

Inventor： Alexander Shpiner ,  Eitan Zahavi ,  Vladimir Zdornov ,  Tal Anker ,  Matty Kadosh

IPC: H04L12/801 ,  H04L12/707 ,  H04L12/863 ,  H04L12/873

CPC classification number: H04L47/10 ,  H04L45/18 ,  H04L45/22 ,  H04L45/28 ,  H04L47/39 ,  H04L47/524 ,  H04L47/627

Abstract: A credit loop that produces a deadlock is identified in a network of switches that are interconnected for packet traffic flows therethrough. The identification is carried out by periodically transmitting respective credit loop control messages from the loop-participating switches via their deadlock-suspected egress ports to respective next-hop switches. The CLCMs has switch port-unique identifiers (SPUIDs). The loop is identified when in one of the next-hop switches the SPUID of a received CLCM is equal to the SPUID of a transmitted CLCM thereof. A master switch is selected for resolving the deadlock.