Telefonaktiebolaget Lm Ericsson (Publ)

Baifeng Cui

Jiang He

Ying Lu

Qingfeng Yang

The disclosure relates to a method of LSP number planning in an inter-chassis device comprising a plurality of peers. In one embodiment, the method comprises steps of generating an LSP and transmitting the generated LSP outside at a peer. The LSP number in the generated LSP is a number in a number range assigned to that peer. The number ranges assigned to different peers of the inter-chassis device do not overlap with each other. By the LSP number planning method, the peer may discover automatically other peers in the same inter-chassis, and announce itself independently.

Inter-chassis peer and method used therein

A method and apparatus for managing a media access control address are provided. The method comprises assigning a priority to the MAC address. The method also comprises managing the MAC address in a forwarding database based on the priority. With the method and apparatus, a MAC flooding attack can be efficiently avoided and communication performance would be improved in a secure manner.

Method and apparatus for managing media access control addresses

A method and system for maintaining clock synchronization in a communication network having multiple clocks are disclosed. According to one aspect, the invention provides a first precision time protocol (PTP) instance and second PTP service instance. Dynamic PTP parameters and tuning PTP parameters are periodically cloned from the first PTP service instance to the second PTP service instance substantially in real time.

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Beijing, China

Baifeng Cui