Can you try configuring the DWDM channel with frequency, instead
of channel. We run into a similar problem a while ago. Solution was to
configure with frequency.
Head of HBONE+ project
Network Engineer, Director Network and Multimedia
Co-chair of Hungarian IPv6 Forum
Key 70EF9882: DEC2 C685 1ED4 C95A 145F 4300 6F64 7B00 70EF 9882