Symptoms
Network flows are reset and following errors are found in /var/log/ltm:
Route domain not reachable (strict mode).
Impact
Traffic is not sent to the node that is in a route domain.
The iRule 'node' method and/or LTM policy 'node' specification require a route_domain to be specified in order for the traffic to be sent to a node that is assigned to a route domain.
Conditions
This might occur in either one of the following scenarios:
Scenario 1
==========
-- LTM with iRules configured.
-- The iRule directs traffic to a node that is in a route domain.
or
Scenario 2
==========
-- LTM with an LTM policy configured.
-- The policy directs traffic to a node that is in a route domain.
Other
=====
Tunnel scenario's such as IPSec where client and encrypted traffic are in different route domains.
Workaround
Specify the node along with Route Domain ID.
-- For iRules, change from this:
when HTTP_REQUEST {
node 10.10.10.10 80
}
To this (assuming route domain 1):
when HTTP_REQUEST {
node 10.10.10.10%1 80
}
-- For LTM policies, change from this:
actions {
0 {
forward
select
node 10.2.35.20
}
}
To this (assuming route domain 1):
actions {
0 {
forward
select
node 10.2.35.20%1
}
}
