BRI Idle State channel

[LaKiks]

Hello,
I'm facing a behaviour that I don't understand dealing with BRI accesses.
I have a QUAD-BRI card on a 3300 ICP MXe-III.
I want to perform some tests about the BRI external access which are working well for a few years (I didn't install the system). The thing is when I unplugged one of the four BRI access cable from the QUAD-BRI card, the channel are still seen in Idle state using the maintenance command STATE TRUNK GROUP.
I expected to see the channels down because the channel are still used even if there is no cable plugged.
Do you have any idea what I do not see?
Thanks!
Nico

[Dutch]

Hi Nico,

If you want to check link status for BRI I Always use:

EDT SHOW LINK STATUS BRI

As far as I know in Europe if you have a point-to-point T(runk) configured BRI the channel should go down in the command when you remove it.

[LaKiks]

Hi,
yes you're right!
BRI Framer cannot differentiate between Network forcing layer 1 down (power saving) and layer 1 being down due to fault. As you said, the command EDT SHOW LINK STATUS BRI permits to check LED status.
Thanks!
Nico