FibMgmt » History » Revision 30
Revision 29 (Junxiao Shi, 03/18/2014 11:34 AM) → Revision 30/44 (Junxiao Shi, 03/25/2014 02:40 PM)
# FIB Management **FIB Management** is a module of [[Management|NFD Management protocol]]. It provides: * commands to insert, update, and delete FIB entries and nexthop records * a dataset of FIB entries and nexthop records FIB Management commands and datasets are published in namespace `ndn:/localhost/nfd/fib`. ## Control Commands [[ControlCommand]] **management-module**: `fib` ### Add a nexthop **command-verb**: `add-nexthop` This command adds a nexthop to a FIB entry. If the FIB entry does not exist, it is inserted automatically. ControlParameters fields: * Name (required) * FaceId (required) * Cost (optional) FaceId is the FaceId returned in [[FaceMgmt|Face Management]]. If FaceId is set to zero, it is implied as the requesting face. face of the entity sending this command. If face does not exist, the command fails with code 410. Cost defaults to zero. If a nexthop of same FaceId exists on the FIB entry, its cost is updated. If the command succeeds, \<Body> in ControlResponse block contains updated ControlParameters: * Name: unchanged * FaceId: unchanged if request specifies non-zero; requesting FaceId if request specifies zero * Cost: unchanged if request has this field; zero if request omits this field ### Remove a nexthop **command-verb**: `remove-nexthop` This command removes a nexthop from a FIB entry. If the last nexthop record in a FIB entry is removed, the FIB entry is deleted automatically. ControlParameters fields: * Name (required) * FaceId (required) FaceId is the FaceId returned in [[FaceMgmt|Face Management]]. If FaceId is set to zero, it is implied as the requesting face. face of the entity sending this command. If face or the FIB entry does not exist, the command fails with code 404. If face or nexthop record does not exist, this command does nothing, but is still considered successful. If the command succeeds, \<Body> in ControlResponse block contains updated ControlParameters: * Name: unchanged * FaceId: unchanged if request specifies non-zero; requesting FaceId if request specifies zero ## FIB Dataset FIB entries and nexthop records are published as a [[StatusDataset|Status Dataset]] at `ndn:/localhost/nfd/fib/list`. Each FIB entry is represented by a **FibEntry** blocks: FibEntry := FIB-ENTRY-TYPE TLV-LENGTH Name NextHopRecord+ NextHopRecord := NEXT-HOP-RECORD TLV-LENGTH FaceId Cost ## TLV-TYPE assignments Type | Assigned value | Assigned value (hex) ------------------------------------------- | ----------------- | -------------------- FibEntry | 128 | 0x80 NextHopRecord | 129 | 0x81