New object: peering-set
peering-set: [mandatory] [single] [primary/look-up key]
descr: [mandatory] [multiple]
peering: [mandatory] [multiple]
remarks: [optional] [multiple]
tech-c: [mandatory] [multiple] [inverse key]
admin-c: [mandatory] [multiple] [inverse key]
notify: [optional] [multiple] [inverse key]
mnt-by: [mandatory] [multiple] [inverse key]
changed: [mandatory] [multiple]
source: [mandatory] [single]