NAME

sendUcastNS2 - Verify that NUT sends unicast NSs by RetransTimer=3sec.

TARGET

Host and Router

Host only

SYNOPSIS

  sendUcastNS2.seq [-tooloption ...] -p sendUcastNS2.def

INITIALIZATION

A CASE OF A HOST

Send RA with RetransTimer=3sec to initiate NUT's retrans timer.
Clear NC state for TN

  TN                   NUT
  ------------------------
  ==== unsolicited RA ===>
        src=X's link-local
        dst=all-node
        M=0, O=0
        Lifetime=600, ReachableTime=0, RetransTimer=3000

A CASE OF A ROUTER

  Clear NC state for TN

TEST PROCEDURE

sendUcastNS2 verifies NUT send unicast NSs by the rules that are configured by RA (in host case) or manual (in router cast).

  TN(or X)	  NUT
  ---------------------


  State: NONCE


  ==== echo-request ===>
  	src=TN's link-local
  	dst=NUT's link-local


  State: INCOMPLETE


  <=== Judgment #1: multicast NS ===
  	src=NUT's link-local
  	dst=solicited-node[TN's link-local]
  	w/ SLLA
  	timeout: 3 sec * MAX_MULTICAST_SOLICIT


  ==== solicited NA ===>
  	src=TN's link-local
  	dst=NUT's link-local
  	R=0, S=1, O=1
  	w/ TLLA


  State: REACHABLE


  <=== Judgment #2: echo-reply   ====
  	src=NUT's link-local
  	dst=TN's link-local


  Wait (REACHABLE_TIME * MAX_RANDOM_FACTOR)


  State: STALE


  ==== echo-request ===>
  	src=TN's link-local
  	dst=NUT's link-local


  <=== Judgment #3: echo-reply   ====
  	src=NUT's link-local
  	dst=TN's link-local


  Wait (DELAY_FIRST_PROBE_TIME)


  State: PROBE


  <=== Judgment #4: unicast NS   ====
  	src=NUT's link-local
  	dst=TN's link-local
  	w/ or w/o SLLA


  <=== Judgment #4: unicast NS   ====
  	src=NUT's link-local
  	dst=TN's link-local
  	w/ or w/o SLLA


  <=== Judgment #4: unicast NS   ====
  	src=NUT's link-local
  	dst=TN's link-local
  	w/ or w/o SLLA

JUDGMENT


  1. NUT must send at the least one multicast NS:
     src=NUT's link-local, dst=solicited-node[TN's link-local], w/ SLLA

  2. NUT must send an echo-reply:
     src=NUT's link-local, dst=TN's link-local

  3. NUT must send an echo-reply:
     src=NUT's link-local, dst=TN's link-local

  4. NUT must send multicast NSs:
     src=NUT's link-local, dst=TN's link-local, w/ or w/o SLLA


     4.1. The Number of the unicast NSs <= MAX_UNICAST_SOLICIT(3)


     4.2. Intervals between the unicast NSs >= 3.0 sec.

TERMINATION

A CASE OF A HOST

Set NUT's retrans time to the default (1 sec) with RA with RetransTimer=1sec.
Send RA with RouterLifetime=0 to flush the Default Router List.

  X                    NUT
  ------------------------
  ==== unsolicited RA ===>
        src=X's link-local
        dst=all-node
        M=0, O=0
        Lifetime=600, ReachableTime=0, RetransTimer=1000

  ==== unsolicited RA ===>
        src=X's link-local
        dst=all-node
        M=0, O=0
        Lifetime=0, ReachableTime=0, RetransTimer=0

A CASE OF A ROUTER

N/A

NOTE

  The test does not invoke any remote command.