NAME

RA w/ Route Information Option (Link1:Preference=UNSPEC) vs.
RA w/ Route Information Option (Link1:Preference=MED)

TARGET

Host

SYNOPSIS

SamePX_UNSPEC_MED.seq [-tooloption ...] -pkt RTINFO.def

-tooloption: v6eval tool option

TOPOLOGY

                         HOST1
                           |
            -------+-------+-------+------- Link1
                   |               |
                  RT2             RT1
                   |               |
            -------+-------+-------+------- Link0
                           |
                          NUT

Link0	global	3ffe:501:ffff:100::/64	Testing link
Link1	global	3ffe:501:ffff:101::/64	other link
RT1(Link0)	global	3ffe:501:ffff:100::a0a0	Alternative router
	link-local	fe80::200:ff:fe00:a0a0
	ether	00:00:00:00:a0:a0
RT2(Link0)	global	3ffe:501:ffff:100::a1a1	Alternative router
	link-local	fe80::200:ff:fe00:a1a1
	ether	00:00:00:00:a1:a1
HOST1	global	3ffe:501:ffff:101::1	Host on Link1

INITIALIZATION

Flush Default Router List
Flush Routing Table
Flush Neighbor Cache
Flush Prefix List

TEST PROCEDURE

NUT              RT1              RT2    HOST1
 |                |                |       |
 ==================(INITIALIZE)=============
 |                |                |       |
 |Link1Pref=UNSPEC|                |       |
 |        Pref=MED|                |       |
 |<---------------+                |       | RA from RT1
 |                |   Link1Pref=MED|       |
 |                |        Pref=MED|       |
 |<--------------------------------+       | RA from RT2
 |                |                |       |
 |<---------------#------------------------+ Echo Request (via RT1)
 +---------------------------------#------>| Echo Reply   (via RT2)(*1)
 |                |                |       |
 ==================(INITIALIZE)=============
 |                |                |       |
 |   Link1Pref=MED|                |       |
 |        Pref=MED|                |       |
 |<---------------+                |       | RA from RT1
 |                |Link1Pref=UNSPEC|       |
 |                |        Pref=MED|       |
 |<--------------------------------+       | RA from RT2
 |                |                |       |
 |<---------------#------------------------+ Echo Request (via RT1)
 +----------------#----------------------->| Echo Reply   (via RT1)(*2)
 |                |                |       |

(INITIALIZATION)
1. RT1 Sends RA w/ Preference=MED, RouteInfoOption(Link1:Preference=UNSPEC)
2. RT2 Sends RA w/ Preference=MED, RouteInfoOption(Link1:Preference=MED)
3. HOST1 Sends Echo Request
4. NUT Sends Echo Reply to HOST1 via RT2(*1)
(INITIALIZATION)
5. RT1 Sends RA w/ Preference=MED, RouteInfoOption(Link1:Preference=MED)
6. RT2 Sends RA w/ Preference=MED, RouteInfoOption(Link1:Preference=UNSPEC)
7. HOST1 Sends Echo Request
8. NUT Sends Echo Reply to HOST1 via RT1(*2)

JUDGEMENT

(*1)
    PASS: HOST1 receives Echo Reply via RT2

(*2)
    PASS: HOST1 receives Echo Reply via RT1

SEE ALSO

ROUTE.pm
RTINFO.def