Patent ID: 7996594
Filing Date: 2011-08-09
Classification: H04L

Abstract:
1. A computer implemented method for propagating link status information in a blade server, the method comprising the computer implemented steps of: identifying a communication loss between an external switch module and a multi-port switch of a blade server, wherein the communication loss is identified by an intermediate bus controller; responsive to identifying the communication loss between the external switch module and the multi-port switch of the blade server, generating a link down interrupt wherein the link down interrupt is generated by the intermediate bus controller; responsive to generating the link down interrupt, broadcasting the link down interrupt from the intermediate bus controller to a server blade of the blade server; receiving the link down interrupt from the intermediate bus controller at a multi-port switch of the server blade; responsive to receiving the link down interrupt from the intermediate bus controller, generating a hardware link down interrupt, wherein the hardware link down interrupt is generated by the multi-port switch; and responsive to generating the hardware link down interrupt, forwarding the hardware link down interrupt from the multi-port switch to a connected unit.