RAPID CONVERGENCE OF ACCESS NETWORK

摘要

The present disclosure describes rapid convergence of an Access Network (AN). A VLAN forwarder is allocated to a first Virtual Local Area Network (VLAN) and traffic for the first VLAN is forwarded to and from the AN via the VLAN forwarder. When detecting that the VLAN forwarder satisfies a VLAN reallocation condition, the VLAN forwarder blocks traffic of the first VLAN to and from the AN via the VLAN forwarder, and calculates a characteristic value of the VLAN forwarder. A packet carrying the characteristic value of the VLAN forwarder is transmitted to each neighbor VLAN forwarder such that VLAN reallocation is performed by a VLAN allocator if the characteristic value of the VLAN forwarder is the same as that of each neighbor VLAN forwarder. After receiving information that the VLAN forwarder is reallocated to a second VLAN, the VLAN forwarder allows the traffic of the second VLAN to and from the AN via the VLAN forwarder.

主权项

1. A method for rapid convergence of an Access Network (AN), wherein a VLAN forwarder is allocated to a first Virtual Local Area Network (VLAN) and traffic for the first VLAN is forwarded to and from the AN via the VLAN forwarder, the method comprising the VLAN forwarder:
when detecting that the VLAN forwarder satisfies a VLAN reallocation condition:
blocking traffic of the first VLAN to and from the AN via the VLAN forwarder,calculating a characteristic value of the VLAN forwarder, andtransmitting a packet carrying the characteristic value of the VLAN forwarder to each neighbor VLAN forwarder such that VLAN reallocation is performed by a VLAN allocator if the characteristic value of the VLAN forwarder is the same as that of each neighbor VLAN forwarder; and after receiving information that the VLAN forwarder is reallocated to a second VLAN, allowing the traffic of the second VLAN to and from the AN via the VLAN forwarder.