page_title: PAROLI
hierarchical_section_title: PAROLI
context_page_description: PAROLI is a proprietary protocol used inside a multi-shelf Carrier Routing System from Cisco and stands for "parallel optical link."
context_section_description: PAROLI is a proprietary protocol used inside a multi-shelf Carrier Routing System from Cisco and stands for "parallel optical link."
caption: Three chassis of a CSR system
  if these shelves would be interconnected it would use PAROLI
exif: {}