RA w/ Preference=HIGH vs.
RA w/ Preference=LOW, Route Information Option (Link1:Preference=MED)
Host
raHIGH_rtinfoMED.seq [-tooloption ...] -pkt RTINFO.def
-tooloption: v6eval tool option
HOST2
|
---------------+-----------+--- Link2
|
RT3 HOST1
| |
-------+-------+-------+---+--- Link1
| |
RT2 RT1
| |
-------+-------+-------+------- Link0
|
NUT
| Link0 |
global |
3ffe:501:ffff:100::/64 |
Testing link |
| Link1 |
global |
3ffe:501:ffff:101::/64 |
other link |
| Link2 |
global |
3ffe:501:ffff:102::/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 |
| HOST2 |
global |
3ffe:501:ffff:102::1 |
Host on Link2 |
Flush Default Router List
Flush Routing Table
Flush Neighbor Cache
Flush Prefix List
NUT RT1 RT2 HOST1 HOST2
| | | | |
==================(INITIALIZE)===================
| | | | |
| Pref=HIGH| | | |
|<--------------+ | | | RA from RT1
| | Link1Pref=MED| | |
| | Pref=LOW| | |
|<------------------------------+ | | RA from RT2
| | | | |
|<--------------#-----------------------+ | Echo Request (via RT1)
+-------------------------------#------>| | Echo Reply (via RT2)(*1)
| | | | |
|<--------------#-------------------------------+ Echo Request (via RT1)
+---------------#------------------------------>| Echo Reply (via RT1)(*2)
| | | | |
| | | | |
==================(INITIALIZE)===================
| | | | |
| Link1Pref=MED| | | |
| Pref=LOW| | | |
|<--------------+ | | | RA from RT1
| | Pref=HIGH| | |
|<------------------------------+ | | RA from RT2
| | | | |
|<--------------#-----------------------+ | Echo Request (via RT1)
+---------------#---------------------->| | Echo Reply (via RT1)(*3)
| | | | |
|<--------------#-------------------------------+ Echo Request (via RT1)
+-------------------------------#-------------->| Echo Reply (via RT2)(*4)
| | | | |
| | | | |
(INITIALIZATION)
1. RT1 Sends RA w/ Preference=HIGH
2. RT2 Sends RA w/ Preference=LOW, RouteInfoOption(Link1:Preference=MED)
3. HOST1 Sends Echo Request
4. NUT Sends Echo Reply to HOST1 via RT2(*1)
5. HOST2 Sends Echo Request
6. NUT Sends Echo Reply to HOST2 via RT1(*2)
(INITIALIZATION)
2. RT1 Sends RA w/ Preference=LOW, RouteInfoOption(Link1:Preference=MED)
8. RT2 Sends RA w/ Preference=HIGH
9. HOST1 Sends Echo Request
10. NUT Sends Echo Reply to HOST1 via RT1(*3)
11. HOST2 Sends Echo Request
12. NUT Sends Echo Reply to HOST2 via RT2(*4)
(*1)
PASS: HOST1 receives Echo Reply via RT2
(*2)
PASS: HOST2 receives Echo Reply via RT1
(*3)
PASS: HOST1 receives Echo Reply via RT1
(*4)
PASS: HOST2 receives Echo Reply via RT2
ROUTE.pm
RTINFO.def