Reliable status delivery and request mechanism for static pseudowires

摘要

Various exemplary embodiments relate to a method for determining peer status in a pseudowire (PW) node, the method including: sending a first PW status request message to a peer node including a PW node local message ID, PW node remote message ID, and request flag; starting a first retry timer; starting a second retry timer when the first retry timer expires and no response to the first PW status request message is received; starting a first request timer when the second retry timer expires and no response to the first PW status request message is received; and starting a third retry timer when the first request timer expires and no response to the first PW status request message is received.

主权项

1. A method for determining peer status in a pseudowire (PW) node, the method comprising:
sending a first PW status request message to a peer node including a PW node local message ID, PW node remote message ID, and request flag; starting a first retry timer, wherein a retry timer determines the interval at which PW status messages are sent; starting a second retry timer when the first retry timer expires and no response to the first PW status request message is received; starting a first request timer when the second retry timer expires and no response to the first PW status request message is received, wherein a request timer is one which determines the timeout interval if no response to a PW status request message is received; and starting a third retry timer when the first request timer expires and no response to the first PW status request message is received.