Abstract: The disclosure provides a method for dynamically adjusting a switching loop. The method comprises the following steps: a network equipment in the switching loop determines current link costs of all links connected with the network equipment, wherein the network equipment determines the current link costs of the links according to initial link costs and link adjustment parameters of the links (S201); then the network equipment acquires the current link costs of all the links in the switching loop, and determines a main link of the switching loop, wherein the current link cost of the main link is less than or equal to a preset link cost (S203). The disclosure also provides a network equipment.

Abstract: The present invention provides a service type auto-negotiation method and an aggregation device. The method comprises: comparing a service type capability set of a local device with that of a peer device to select a communal service type capability set; configuring a service type on an optical transmission network chip using the highest priority service type in the communal capability set; the service type capability sets including various service types supported by the devices and their corresponding priorities. The method negotiates automatically service types supported by both interconnected devices through a protocol and configures device hardware based on the negotiation result such that service interworking can be achieved without network management, thereby greatly decreasing the complexity of service development.

Abstract: The disclosure provides a method for dynamically adjusting a switching loop. The method comprises the following steps: a network equipment in the switching loop determines current link costs of all links connected with the network equipment, wherein the network equipment determines the current link costs of the links according to initial link costs and link adjustment parameters of the links (S201); then the network equipment acquires the current link costs of all the links in the switching loop, and determines a main link of the switching loop, wherein the current link cost of the main link is less than or equal to a preset link cost (S203). The disclosure also provides a network equipment.

Abstract: The present invention provides a service type auto-negotiation method and an aggregation device. The method comprises: comparing a service type capability set of a local device with that of a peer device to select a communal service type capability set; configuring a service type on an optical transmission network chip using the highest priority service type in the communal capability set; the service type capability sets including various service types supported by the devices and their corresponding priorities. The method negotiates automatically service types supported by both interconnected devices through a protocol and configures device hardware based on the negotiation result such that service interworking can be achieved without network management, thereby greatly decreasing the complexity of service development.