Due to a ransomware attack, the wiki was reverted to a July 2022 version. . We apologize for the lack of a more recent valid backup.
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Topology information model elements, relevant to transport network, consist from of Device, Port, and Link.
- Device represents network infrastructure devices, such as (Packet) switch, ROADM, etc.
- Port represents a port on a Device.
- Link represents a the connectivity between Portstwo Port objects.
Each elements has fixed basic attributes common across variant of its kind. (e.g., Port's portspeed)
Additional information about elements can also be added as String-String annotations by each ProvidersProvider.
This mechanism should be used to add relatively read-heavy information specific to certain technology , or domain.
Two
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representations of Port
There are two representation representations of an optical Port.
- Storage format (DefaultPort),
which is a format ONOS distributed core, etc. will deal with for state distribution etc. - Application friendly format (e.g., OchPort),
which is an instance generated on the fly, by translating additional attributes stored as Annotations on storage format port.
In order to retrieve Port in application friendly format, the Device , to which the port is attached to, must be equipped with OpticalDevice behaviour.
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Blue circular Device is the packet-layer device and red octagon Device represent optical Devices.
Initially, packet-layer Link, represented by solid blue lines, between packet-layer Device does not exist in the ONOS topology.
Once Optical Intent is installed, packet-layer connectivity will be established between s5-s6, which will show up as a link between packet-layer side of cross-connect links.
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