[j-nsp] MX304 reliability

[Andrey Kostin]

Hello, juniper-nsp readers.

 From the article 
https://www.juniper.net/documentation/us/en/software/junos26.1/chassis/topics/topic-map/chassis-guide-tm-fabric-plane-mngmnt.html 
:
Limitations

• MX304 routers have only one built-in SFB and one FPC. Hence there is 
no fabric redundancy support.

Does anybody encountered MX304 HW failures that required a chassis 
replacement and how real is the risk of such a failure?

Kind regards,
Andrey