Chinese
English
Problem Description
One end of an OSN 3500 device in a bureau, the host version is 5.21.18.50, and the cross-board configuration is SSN1SXCSA. after inserting the SSN1SLQ4 single board into slot 4 and slot 15 respectively, only the first two optical ports of the SSN1SLQ4 single board are available, and the last two ports cannot be displayed.
Alarm messageNone
Processing1, OSN3500 cross-board configuration for the SSN1SXCSA, its 5-slot and 14-slot access capacity of 5G, SSN1SLQ4 add up to the rate of 2.5G. to rule out the slot access capacity.
2. After analyzing, the single board installation slot is not only limited by the access capacity, but also by the cross-board and single board bus distribution, the SSN1GXCSA, SSN1EXCSA, SSN1UXCSA/B of the OSN 3500 only support 622M bus structure, the SSN1SXCSA, SSN1IXCSA cross-boards can be adapted to 622M and 2.5G bus structure. bus structure. If you add the logical board position of OSN 3500 slot 5 as SSN1SLQ4, the host informs the cross board through inter-board communication that board 5 is a 622M rate bus; after the cross board gets the message from the host, it sets all the buses of board 5 to 622M bus rate. If the logical board position in slot 5 is deleted and added as SSN1SL64 single board, the host informs the cross board that board 5 is 2.5G bus rate; after the cross board gets the message, it will change all the buses of board 5 to 2.5G bus rate.
3, from the above analysis, SSN1SLQ4 board is a 622M bus rate board, you need four 622M buses to fully support the four optical ports, and the 4-slot only supports two buses, so it can only display the first two optical ports. 5, 6, 13, 14 slots for the four buses, the board will be replaced to the 5-slot and 14-slot after the optical ports show normal.
2. After analyzing, the single board installation slot is not only limited by the access capacity, but also by the cross-board and single board bus distribution, the SSN1GXCSA, SSN1EXCSA, SSN1UXCSA/B of the OSN 3500 only support 622M bus structure, the SSN1SXCSA, SSN1IXCSA cross-boards can be adapted to 622M and 2.5G bus structure. bus structure. If you add the logical board position of OSN 3500 slot 5 as SSN1SLQ4, the host informs the cross board through inter-board communication that board 5 is a 622M rate bus; after the cross board gets the message from the host, it sets all the buses of board 5 to 622M bus rate. If the logical board position in slot 5 is deleted and added as SSN1SL64 single board, the host informs the cross board that board 5 is 2.5G bus rate; after the cross board gets the message, it will change all the buses of board 5 to 2.5G bus rate.
3, from the above analysis, SSN1SLQ4 board is a 622M bus rate board, you need four 622M buses to fully support the four optical ports, and the 4-slot only supports two buses, so it can only display the first two optical ports. 5, 6, 13, 14 slots for the four buses, the board will be replaced to the 5-slot and 14-slot after the optical ports show normal.
Root CauseCross-board bus problem.
(This case is the same as SC0000416004, but with detailed explanation on its basis)
(This case is the same as SC0000416004, but with detailed explanation on its basis)
Recommendations and Summary1. In addition to the access capacity of the slot, the bus rate of the cross-board and the single-board should also be taken into account when planning for the single-board slot.
2. The motherboard bus of OSN3500 has two specifications: 622M and 2.5G; OSN1500 and OSN2500 only support 622M bus structure; SSN1GXCSA, SSN1EXCSA, SSN1UXCSA/B of OSN 3500 only support 622M bus structure; the rest of the crossboards of OSN 3500 and OSN7500 can adapt to the 622M and 2.5G bus structure by themselves. adapt to 622M and 2.5G bus structures.
2. The motherboard bus of OSN3500 has two specifications: 622M and 2.5G; OSN1500 and OSN2500 only support 622M bus structure; SSN1GXCSA, SSN1EXCSA, SSN1UXCSA/B of OSN 3500 only support 622M bus structure; the rest of the crossboards of OSN 3500 and OSN7500 can adapt to the 622M and 2.5G bus structure by themselves. adapt to 622M and 2.5G bus structures.
Sales of OSN3500 SSN1SXCSA_Product Quotation_Sales Manufacturer_Product Characteristics_Product Description_Huawei SDH Transmission Equipment Sales
Supply OSN3500 SSN1SXCSA_Troubleshooting_Installation and Testing_Technical Specifications_Technical Parameters_Huawei SDH Transmission Equipment Sales
