# NAME

routerSendUnsolRaDefault2 - verify a host sending valid RSs

# TARGET

      Router Only

# SYNOPSIS

      routerSendUnsolRaDefault2.seq [-tooloption ...] -p routerSendUnsolRaDefault2.def

# INITIALIZATION

Start NUT advertising RAs whose parameters are as same as those except the followings:

- MaxRtrAdvInterval:7
- MinRtrAdvInterval:10

# TEST PROCEDURE

routerSendUnsolRaDefault2 verifies that a NUT send valid RAs by the rules. The interval of RAs is between 7 sec. and 10 sec.

# JUDGMENT

      1. NUT throw valid RAs:
         - whose parameter are as same as those.
         - that may contain a source link-layer option.
         - that may contain a MTU option.
         - that may contain a Prefix option.

      2. The interval of RAs is between 7 sec. and 10 sec.

# TERMINATION

      N/A

# NOTE

      TBD

# REFERENCE

    6.2.4.  Sending Unsolicited Router Advertisements

       Unsolicited Router Advertisements are not strictly periodic: the
       interval between subsequent transmissions is randomized to reduce the
       probability of synchronization with the advertisements from other
       routers on the same link [SYNC].  Each advertising interface has its
       own timer.  Whenever a multicast advertisement is sent from an
       interface, the timer is reset to a uniformly-distributed random value
       between the interface's configured MinRtrAdvInterval and
       MaxRtrAdvInterval; expiration of the timer causes the next
       advertisement to be sent and a new random value to be chosen.

       For the first few advertisements (up to
       MAX_INITIAL_RTR_ADVERTISEMENTS) sent from an interface when it
       becomes an advertising interface, if the randomly chosen interval is
       greater than MAX_INITIAL_RTR_ADVERT_INTERVAL, the timer SHOULD be set
       to MAX_INITIAL_RTR_ADVERT_INTERVAL instead.  Using a smaller interval
       for the initial advertisements increases the likelihood of a router
       being discovered quickly when it first becomes available, in the
       presence of possible packet loss.

# SEE ALSO

      perldoc V6evalTool
      perldoc V6evalRemote