Liaison statement
CCAMP Liaison to ITU-T SG15's Q6 and Q12 on Flexible Grid DWDM networks

State Posted
Posted Date 2013-10-10
From Group ccamp
From Contact Deborah Brungard
To Group ITU-T-SG-15
To Contacts jdrake@juniper.net
Cctsbsg15@itu.int
steve.trowbridge@alcatel-lucent.com
greg.jones@itu.int
peter.stassar@huawei.com
panslow@ciena.com
sshew@ciena.com
ccamp@ietf.org
lberger@labn.net
dbrungard@att.com
scott.mansfield@ericsson.com
adrian@olddog.co.uk
stbryant@cisco.com
jdrake@juniper.net
Response Contact dbrungard@att.com
Technical Contact dbrungard@att.com
Purpose For action
Deadline 2013-12-20 Action Taken
Attachments (None)
Body
The CCAMP Working Group would like to inform you that we have initiated control plane work on supporting Flexible Grid DWDM networks with the following document:
http://www.ietf.org/id/draft-ietf-ccamp-flexi-grid-fwk-00.txt

Our understanding of the n and m parameters, when used to describe a frequency slot, have to be integer, as per G.694.1.  From a signaling perspective, since we are signaling actual frequency slots on a hop per hop basis, we would use integer values. It is our understanding that typically a consistent value of n would be used for a path over multiple network elements, though the Recommendation does not constrain it.

The CCAMP WG would like to ask if our understanding is accurate.

We would appreciate if you would continue to keep us informed of your progress and development on capabilities for the data plane that may affect the control plane.

Best regards,
Lou Berger and Deborah Brungard
IETF CCAMP Working Group Co-Chairs