摘要:
The embodiments of the present invention relate to the field of communications technologies, and disclose a lossless adjustment method of ODUflex channel bandwidth. The lossless adjustment method includes: adjusting, according to a bandwidth adjustment indication request information, the number of time slots occupied by an ODUflex frame in a higher order optical channel data unit of each network node on an ODUflex channel; and adjusting, according to a rate adjustment indication information, a transmission rate of the ODUflex frame of each network node on the ODUflex channel; the bandwidth adjustment indication request informatioin and the rate adjustment indication information are encapsulated into the HO ODU overhead. The embodiments of the present invention achieve a lossless adjustment of ODUflex channel bandwidth.
摘要:
The embodiments of the present invention relate to the field of communications technologies, and disclose a lossless adjustment method of ODUflex channel bandwidth and an ODUflex channel. The lossless adjustment method includes: respectively adjusting, according to bandwidth adjustment indication request information, a time slot occupied by an ODUflex frame in a higher order optical channel data unit at an egress side of each network node on an ODUflex channel; and adjusting, according to rate adjustment indication information, a transmission rate of the ODUflex frame of each network node on the ODUflex channel, to enable the transmission rate of each network node on the ODUflex channel to be unified. The embodiments of the present invention achieve the lossless adjustment of ODUflex channel bandwidth by respectively adjusting a time slot occupied by an ODUflex frame in a Higher Order Optical Channel Data Unit at an egress side of each network node on an ODUflex channel, and adjusting a transmission rate of an ODUflex frame of each network node on the ODUflex channel.
摘要:
Embodiments of the present invention provide a data transmission method, which can meet a requirement for an Ethernet network with diversified rate levels. The method includes: performing grouping processing on at least one piece of media access control MAC layer data that comes from a MAC layer, to determine at least one MAC layer data group; allocating, according to target bandwidth required by a target MAC layer data group and preset reference bandwidth of a logical channel, at least one target logical channel from N logical channels to the target MAC layer data group, so that the target logical channel corresponds to only the target MAC layer data group; performing encoding processing on the target MAC layer data group according to the target logical channel to generate target physical layer data, where the target logical channel corresponds to only the target physical layer data; and sending the target physical layer data and first indication information, where the first indication information is used to indicate a mapping relationship between the target physical layer data and the target logical channel.
摘要:
The embodiments of the present invention relate to the field of communications technologies, and disclose a lossless adjustment method of ODUflex channel bandwidth. The lossless adjustment method includes: adjusting, according to a bandwidth adjustment indication request information, the number of time slots occupied by an ODUflex frame in a higher order optical channel data unit of each network node on an ODUflex channel; and adjusting, according to a rate adjustment indication information, a transmission rate of the ODUflex frame of each network node on the ODUflex channel; the bandwidth adjustment indication request information and the rate adjustment indication information are encapsulated into the HO ODU overhead. The embodiments of the present invention achieve a lossless adjustment of ODUflex channel bandwidth.
摘要:
The embodiments of the present invention relate to the field of communications technologies, and disclose a lossless adjustment method of ODUflex channel bandwidth. The lossless adjustment method includes: adjusting, according to a bandwidth adjustment indication request information, the number of time slots occupied by an ODUflex frame in a higher order optical channel data unit of each network node on an ODUflex channel; and adjusting, according to a rate adjustment indication information, a transmission rate of the ODUflex frame of each network node on the ODUflex channel; the bandwidth adjustment indication request informatioin and the rate adjustment indication information are encapsulated into the HO ODU overhead. The embodiments of the present invention achieve a lossless adjustment of ODUflex channel bandwidth.
摘要:
Embodiments of the present invention disclose a method for the generic mapping procedure GMP mapping, a method for GMP demapping, and an apparatus. The method for mapping includes: carrying, in an overhead GMP OH of the ith GMP block container, information about a TS that needs to be occupied by the (i+n)th GMP block container; adjusting the (i+n)th GMP block container according to the information about the TS that needs to be occupied by the (i+n)th GMP block container; performing, according to the adjusted (i+n)th GMP block container, the GMP mapping on customer service data to be sent, so that a receive end is capable of adopting a corresponding demapping manner according to a change of the block container, which implements lossless mapping and demapping processing by adopting a GMP for a variable block container.