Host's behavior when Router Lifetime expired

[Interoperability Test Scenario]

Last Update: July 27, 2000

This scenario verifies interoperability when the target HOST is attached to the model network.

• Subjects:

  Verification of host's behavior when Router Lifetime expired.

  Verification Points:
  

  At the target HOST, expired router is removed from default router list and destination cache. When the HOST tries to transmit packets to a certain destination behind the expired router via different router and then the host receives Redirect message from it, a target HOST gets reachability via the expired router.

• Physical Network Configuration:

                 HOST-3
                   |
         -+--------+------------------ (Net-x) (Prefix 3ffe:501:481d:f003::/64)
          |                                    (Prefix fec0:0:0:f003::/64)
          |(I/F-2x)
       ROUTER-2
          |(I/F-2y)
          |
         -+--------+-----------+------ (Net-y) (Prefix 3ffe:501:481d:f002::/64)
                   |           |               (Prefix fec0:0:0:f002::/64)
                   |(I/F-1y) HOST-2
                ROUTER-1
                   |(I/F-1z)
                   |
         ----------+-----------+------ (Net-z) (Prefix 3ffe:501:481d:f001::/64)
                               |               (Prefix fec0:0:0:f001::/64)
                             HOST-1

Network	Prefix	Network media
Net-x	3ffe:501:481d:f003::/64 fec0:0:0:f003::/64	Ethernet 10BASE-T
Net-y	3ffe:501:481d:f002::/64 fec0:0:0:f002::/64	Ethernet 10BASE-T
Net-z	3ffe:501:481d:f001::/64 fec0:0:0:f001::/64	Ethernet 10BASE-T

• Test Machine:

Machine	Comments	Initial status
HOST-1	Reference Machine	Is attached to Net-z with power turned off.
ROUTER-1	Reference Machine	Power is turned off. I/F-z is attached to Net-z while I/F-y attached to Net-y. Sends RA to Net-z (Router Lifetime=1800), and Net-y (Router Lifetime=1800). Transmits and receives RIPng.
HOST-2	Target Machine	Is attached to Net-y with power turned off.
ROUTER-2	Reference Machine	Power is turned off. I/F-y is attached to Net-y,  I/F-x attached to Net-x. Sends RA to Net-y (Router Lifetime=1800), and Net-x (Router Lifetime=1800). Transmits and receives RIPng.
HOST-3	Reference Machine	Is attached to Net-x with power turned off.

• Check Protocol:

  ICMP

• Applications:

  Interoperability is checked using ping application program.

• Interoperability check

	Action	Criteria	Comments
1	Boot HOST-2.	-	-
2	Boot ROUTER-1.	-	-
3	Boot ROUTER-2.	-	-
4	Boot HOST-1.	-	-
5	Boot HOST-3.	-	-
6	At HOST-2, run "ping" to HOST-1's site-local address.	*HOST-2 sends ICMP Echo Request to HOST-1. *HOST-2 receives ICMP Echo Reply from HOST-1.	Availability Confirmation. HOST-2 communicates with HOST-1 via ROUTER-1.
7	At HOST-2, run "ping" to HOST-1's global address.	*HOST-2 sends ICMP Echo Request to HOST-1. *HOST-2 receives ICMP Echo Reply from HOST-1.	Availability Confirmation. HOST-2 communicates with HOST-1 via ROUTER-1.
8	Stop rtadvd of ROUTER-1	-	Make ROUER-1 to stop advertising to Net-y.
9	Wait until 28 minutes have passed since the booting of ROUTER-1.	-	By default, Router Lifetime expires about 30min.
10	At HOST-2, begin to run "ping" to HOST-1's site-local address.	*HOST-2 sends ICMP Echo Request to HOST-1. *HOST-1 receives ICMP Echo Reply from HOST-2.	Step 10 and Step 11 should be done concurrently. And continue to run "ping".
11	At HOST-2, begin to run "ping" to HOST-1's global address.	*HOST-2 sends ICMP Echo Request to HOST-1. *HOST-1 receives ICMP Echo Reply from HOST-2.	Step 10 and Step 11 should be done concurrently. And continue to run "ping".
12	Wait until 32 minutes has passed since the booting of ROUTER-1.	*HOST-2 sends ICMP Echo Request to HOST-1. *HOST-2 receives ICMP Echo Reply from HOST-1.	At HOST-2, the entry of ROUTER-1 is removed from default router list and destination cache, then HOST-2 changes the next hop router to ROUTER-2, ROUTER-2 sends Redirect message to HOST-2. Then HOST-2 get reachability to HOST-1.

Mark"*"with no number means that we are going to judge that subject.