[j-nsp] JUNOS (undocumented) hardware diagnostics commands

[Chris Cappuccio]

The cluepon documentation isn't quite right, this tests the SDRAM on the slot 0 FPC, not the slot 0 SSB...

Martin T [m4rtntns at gmail.com] wrote:
> I found an unofficial guide on juniper.cluepon.net which describes
> following memory testing technique:
> 
> ? ?* ?start shell user root
> ? ?* vty ssb/feb
> ? ?* bringup chassis slot-state 0 diag
> ? ?* diagnostic set mode manufacturing
> ? ?* diag clear log
> ? ?* diag bchip 0 sdram
> 
> Example(Juniper M20):
> 
> SSB1(M20 vty)# diag bchip 0 sdram
> [Waiting for completion, a:abort, p:pause]
> B SDRAM (Slot 0) test
> phase 1, pass 1, B SDRAM (Slot 0) test: Address Test
> phase 2, pass 1, B SDRAM (Slot 0) test: Pattern Test
> phase 3, pass 1, B SDRAM (Slot 0) test: Walking 0 Test
> phase 4, pass 1, B SDRAM (Slot 0) test: Walking 1 Test
> phase 5, pass 1, B SDRAM (Slot 0) test: Mem Clear Test
> B SDRAM (Slot 0) test completed, 1 pass, ?0 errors
> 
> 
> SSB1(M20 vty)#
> 
> As I understand, I connected to SSB("vty ssb/feb"), then brought SSB
> to diagnostics mode, cleared the log(one is able to check the log with
> "show diagnostic log") and finally ran the RAM test. One interesting
> command for example is "diagnostic craft visual", which blinks all the
> leds on the craft interface :)
> 
> 
> I have never seen such commands in official documentation. What are
> they for? And are there any other known useful commands there? Is
> there a proper documentation for those commands?
> 
> 
> regards,
> martin
> 
> _______________________________________________
> juniper-nsp mailing list juniper-nsp at puck.nether.net
> https://puck.nether.net/mailman/listinfo/juniper-nsp

-- 
the preceding comment is my own and in no way reflects the opinion of the Joint Chiefs of Staff