This describes configuration commands provided by ricd, in addition to
MRT's basic commands.

1. Interactive commands

o show (ip|ipv6) srsvp neighbor [<if-name>] -- Shows SRSVP neighbors detected.
o show (ip|ipv6) flows -- Shows flows created by the daemon.
o [ip|ipv6] flow (send|recv) <dest> port <num> (udp|tcp) <req-qos> --
        Requests the daemon to create a flow for send or receive.
o clear (ip|ipv6) flow <num> -- Removes the flow created.
o show (ip|ipv6) hqlip neighbor [<if-name>] -- Shows HQLIP neighbors detected.
o show (ip|ipv6) hqlip areas -- Shows all areas created by HQLIP.

2. Configuration commands

o link-qos <name> <pri> <pps> <dly> [<loh>] -- Defines a link-qos.
o no link-qos <name> -- Removes the link-qos.
o req-qos <name> <pri> <mtu> <pps> <sec> <cd> <cf> <rdly> <rfee> --
        Defines a request-qos.
o no req-qos <name> -- Removes the request-qos.
o rvp <prefix> <address> -- Defines a hint of RVP.
o no rvp <prefix> <address> -- Removes the hint.

o router ric [ipv6] -- Enables RIC routing protocols (HQLIP/SRSVP).
o no router ric [ipv6] -- Disables RIC routing protocols (HQLIP/SRSVP).

The followings are available within "router ric" mode.

o network <if-name> qos <link-qos> [prefix <prefix>] --
    Turns ON RIC routing on the interface with the qos.
    Specifies a prefix if multiple addresses are assigned to the interface.
o no network <if-name> -- Turns OFF RIC routing on the interface.
o network <if-name> keep-alive <sec> -- Sets keep-alive interval to <num>.
o no network <if-name> keep-alive --
    Resets keep-alive interval to default (10 seconds).

o network <if-name> metric <num> -- Sets interface metric to <num>.
o no network <if-name> metric -- Resets interface metric to default (1).

o network <if-name> center <pri> <pps> level <level> --
    Makes the area at the <level> a center candidate.
o no network <if-name> center -- Withdraws from a center candidate.

o area <name> level <level> id <id> -- Defines an area at the level with id.
o no area <name> level <level> -- Undefines the area.
o area <name> aggregate <prefix> -- Specifies which sub areas are included.
o no area <name> aggregate <prefix> -- Excludes the sub areas.
o area <name> aggregate <if-name> masklen <len> -- Specifies sub areas with
    their if-name. Masklen <len> will be applied to form the prefix..
o no area <name> aggregate <if-name> -- Excludes the sub areas.
o area <name> center <pri> <pps> -- Makes the area a center candidate.
o no area <name> center -- Withdraws from a center candidate.


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