sapCemPayloadSize 1.3.6.1.4.1.6527.3.1.2.4.3.40.1.5

This object specifies the payload size (in bytes) of packets transmitted to the Packet Service Network (PSN) by the CEM SAP. This determines the size of the data that will be transmitted over the service. As well, if the size of the data received is not consistent with the payload size then the packet is considered malformed. The default value depends on the CEM SAP endpoint type (sapCemEndpointType), and if applicable, the number of timeslots (sapCemBitrate): --------------------------------------------------------- | Endpoint Type | Timeslots | Default payload size | ---------------------+-----------+----------------------- | 'unstructuredE1' | n/a | 256 bytes | ---------------------+-----------+----------------------- | 'unstructuredT1' | n/a | 192 bytes | ---------------------+-----------+----------------------- | 'unstructuredE3' | n/a | 1024 bytes | ---------------------+-----------+----------------------- | 'unstructuredT3' | n/a | 1024 bytes | ---------------------+-----------+----------------------- | 'nxDS0' (E1/T1) | N = 1 | 64 bytes | | +-----------+----------------------- | | N = 2..4 | N x 32 bytes | | +-----------+----------------------- | | N = 5..15 | N x 16 bytes | | +-----------+----------------------- | | N >= 16 | N x 8 bytes | ---------------------+-----------+----------------------- | 'nxDS0WithCas' (E1)| N | N x 16 bytes | ---------------------+-----------+----------------------- | 'nxDS0WithCas' (T1)| N | N x 24 bytes | --------------------------------------------------------- For 'nxDS0WithCas', the sapCemPayloadSize cannot be changed away from the default value. For '1xDS0', sapCemPayloadSize must be a multiple of 2. For 'NxDS0', where N > 1, sapCemPayloadSize must be a multiple of the number of timeslots (sapCemBitrate). For 'unstructuredE1', 'unstructuredT1', 'unstructuredE3' and 'unstructuredT3', sapCemPayloadSize must be a multiple of 32 bytes. Configuring sapCemPayloadSize and sapCemJitterBuffer to values that result in less than 2 packet buffers or greater than 32 packet buffers is not allowed. For all endpoint types except for 'nxDS0WithCas', the minimum payload size is given below: --------------------------------------------------------- | Endpoint Type | Timeslots | Minimum payload size | ---------------------+-----------+----------------------- | 'unstructuredE1' | n/a | 256 bytes | ---------------------+-----------+----------------------- | 'unstructuredT1' | n/a | 192 bytes | ---------------------+-----------+----------------------- | 'unstructuredE3' | n/a | 1024 bytes | ---------------------+-----------+----------------------- | 'unstructuredT3' | n/a | 1024 bytes | ---------------------+-----------+----------------------- | 'nxDS0' (E1) | N = 1..4 | N x 16 bytes | ---------------------+-----------+----------------------- | 'nxDS0' (T1) | N = 1..4 | N x 24 bytes | ---------------------+-----------+----------------------- | 'nxDS0' (E1/T1) | N = 5..15 | N x 16 bytes | | +-----------+----------------------- | | N >= 16 | N x 8 bytes | ---------------------+-----------+----------------------- For all endpoints types except for 'nxDS0WithCas', the maximum payload size is 2048 bytes. Setting this object to 0 sets it back to the default value.