The MSR5680 SPE-S3 10 Gigabit interface cannot be used by switching to 1 Gigabit

External networking is not involved

Device model: MSR5680 R821P13

Hardware environment: 

===============display device verbose=============== 

 Chassis No. Slot No. Board Type      Status   Primary   Local Primary  SubSlots

 -------------------------------------------------------------------------------

 1           0        RT-MPU-100-X1   Normal   Master    Master         0      

 1           3        RT-SPE-S3       Normal   N/A       Master         0      

 1           5        RT-SFE          Normal   N/A       N/A            8      

 1           6        RT-SFE          Normal   N/A       N/A            8      

 2           0        RT-MPU-100-X1   Normal   Standby   Master         0      

 2           3        RT-SPE-S3       Normal   N/A       Master         0      

 2           5        RT-SFE          Normal   N/A       N/A            8      

 2           6        RT-SFE          Normal   N/A       N/A            8     

The customer plans to switch the native 10 gigabit interface on SPE-S3 to 1 gigabit interface and use a 1 gigabit opto-power module.

However, the actual test shows that the 1/3/0/4 interface of SPE-S3 does not respond when it is connected to the opto-electrical module, and an error message is displayed when the interface is switched to 1 gigabit on the cli.

1. Query the optical module adaptation relationship and ensure that the SPE-S3 board supports optical to electrical modules.

2. Connect the SFP-GE-T-D module to the first four ports of RT-SPE-S3, and find that even if the opto-electrical module is not connected with the network cable, the interface can be directly switched to UP state.

3. The first four interfaces of SPE-S3 can normally use speed 1000 without error.

After the above test and analysis, it is preliminarily determined that the first four interfaces of SPE-S3 and the fifth interface are in different states, and there may be hardware differences or limitations due to some special conditions.

Further configuration analysis shows that the customer uses XG1/3/0/6, XG1/3/0/7, XG2/3/0/6, and XG2/3/0/7 for IRF deployment.

irf-port 1/1

port group interface Ten-GigabitEthernet1/3/0/6

port group interface Ten-GigabitEthernet1/3/0/7

This error occurs due to the nature of the product IRF interface.

Summary of product features:

1. The front and rear ports of SPE-S3 form a group, and there is no difference in hardware.

2. If a group of interfaces has stack ports, for the sake of device stability, this group of interfaces can only be used by 10 MBIT/s ports.In 10ge interface mode, service traffic can run normally.