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Feature #4910

Automatically set the A / alarm bits in Tx if no signal on Rx

Added by laforge 2 months ago.

Status:
New
Priority:
Low
Assignee:
Category:
-
Target version:
-
Start date:
12/16/2020
Due date:
% Done:

0%

Spec Reference:

Description

At least according to one of my German retronetworking books on PDH it is stated that an E1 interface must set the A[larm] bit in TS0 if no received signal is detected.

I expect we don't do that yet as we have no real concept of LOS.

Relying on the host software to insert that A bit is not really a good idea, as the host has the least idea of what's happening on the physical layer.

So I would guess, similar to the way how we automatically can generate the E bits in case of Rx CRC errors, it would be good to generate the A bits based on whether or not we see incoming Rx clock cycles.

Associated revisions

Revision 6760845d (diff)
Added by fixeria 4 months ago

vty/command: add CMD_ATTR_HIDDEN to CMD_ATTR_PUBLIC_MASK

Otherwise in the expert mode, hidden commands do not get the
associated attribute printed to the XML VTY reference.

Change-Id: I8ded973031beb6d8c7ad55f06641c9651b1d9e71
Related: OS#4910

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