NLSR

# Routing Table Dataset

The routing table can be published as a [[NFD:StatusDataset|Status Dataset]] at `/$ROUTER_NAME/routing-table`:

## Routing Table Status

The routing table is organized and represented as a **RoutingTable** block:

    RoutingTable := ROUTING-TABLE-TYPE TLV-LENGTH

                      RoutingTableEntry*

Dry HR RoutingTableEntries will be present after LS RoutinTableEntries when NLSR is run in dry run mode.

In dry run mode, clients can check if a router name is repeated and assume the beginning of HR routing table entries.

## RouteTable

All routing table information in LS or HR mode is organized and represented as a **RoutingTableEntry** block.

    RoutingTableEntry := ROUTING-TABLE-ENTRY-TYPE TLV-LENGTH

                           Name

                           NextHop+

    NextHop := NEXT-HOP-TYPE TLV-LENGTH

                 Uri

                 Cost ; (double)

Note that Double is used here as HR routing costs do have floating points (However they are installed in NFD's FIB as adjusted integers).

Also note that currently in dry run mode, HR and LS routing table are printed consecutively with no separation.

## TLV-TYPE assignments

Type                                        | Assigned value    | Assigned value (hex)

------------------------------------------- | ----------------- | --------------------

Double                                      | 134               | 0x86

Uri                                         | 141               | 0x8D

NextHop                                     | 143               | 0x8F

RoutingTable                                | 144               | 0x90

RouteTableEntry                             | 145               | 0x91