Huawei switch s5735s-l24t4s-qa2 cannot be remotely accessed by telnet

It used to be in accordance with https://datutu.blog.csdn.net/article/details/106810113 Method Configure different network segments to realize interworking through static routing , Huawei S5700 Switch on telnet Remote designation IP Login configuration （ Strongly recommend ）, Now the newly purchased Huawei digital smart switch S5735S-L24T4S-QA2

Follow this step to configure , What's puzzling is that , Can't even telnet visit , After a careful look at the configuration, no problem was found , In huawei eNSP There is no problem with verification on the simulator ,

Check the running version of the device , It can be used display version, You can see the system version ：V200R021C00SPC600

I went to the official website of Huawei switch to inquire ：https://support.huawei.com/enterprise/zh/category/switches-pid-1482605678974?submodel=doc

Then select the switch model according to Huawei datacom ：S5735S-L24T4S-QA2, System version ：V200R021C00SPC600 Screening , Here's the picture ：