Efforts to get widespread carrier adoption of a multilayer control plane, spanning the optical network up through Ethernet and Layer 2, continue to be hindered by carrier reluctance to change key operating practices, it appears.
“If I hearken to my experiences with the carriers, there hasn’t been a lot of takeup of this application,” said Karl Horne, senior director of portfolio management at
GMPLS, which has been an IEEE Communications Society effort, isn’t the only control plane work that’s out there. The International Telecommunication Union and Optical Internetworking Forum have completed some specifications, too.
It’s also worth noting that a control-plane change is a complicated chore for a carrier, said Vishnu Shukla, a principal technologist at Verizon Communications.
“When we are going to change the control plane, we are changing the process. Changing the process in the network is slow, because there is already a process in place which works,” Shukla said. “One of the gating items is to convince our operations people that this technology works and that it makes life easier.”