[c-nsp] c-delay/pos trig delay/dwdm link with bgp

[hjan]

Hi all,
one of our customer have two 7600 with 2XOC48 pos interface connected
over dwdm protected link.

 -----                    -----
|     | <--------------> |     |
| RA  |                  |  RB |
|     | <--------------> |     |
 -----                    -----

They use bgp over those link, while testing dwdm protection with
manually issued fault on wdm link, they noticed an up/down of about ten
second on pos interface.
I suggest to use *pos delay triggers line n* on link to avoid interface
up/down as consequence of micro line los triggered by wdm protection.
I have some doubt about carrier-delay.
If a low carrier delay is certain useful with igp i'm not sure it's a
good choice for bgp.

Any hints ?
Regards,
Gianluca