AGENT IS UNREACHABLE

=== Agent Configuration Problem Description ===
Target Name=<https://kpdbps07.jewelry.acn:1159/em/redirect?encoded=FALSE&targetType=host&pageType=TARGET_HOMEPAGE&targetName=kpdbps03.j
ewelry.acn>kpdbps03.jewelry.acn
Target Type=Host
Host=kpdbps03.jewelry.acn
Metric=<https://kpdbps07.jewelry.acn:1159/em/redirect?targetType=host&pageType=METRIC
_DETAILS&timePeriod=byDay&targetName=kpdbps03.jewelry.acn&metricColumn=Status&me
tric=Response&keyValue=>Status
Timestamp=Jun 24, 2008 6:41:44 AM EDT
Severity=Unreachable Start
Message=Agent is Unreachable (REASON = IOException in sending Request :: Connection establishment timed out) but the host is UP.
Notification Rule Name=JTV_HOST_WARNINGS
Notification Rule wner=RBALA
metalink give me solution as follow:

ACTION PLAN
===========
1.Stop the agent on the target node
$AGENT_HOME/bin/emctl stop agent

2.Delete any pending upload files from the agent home

rm -r $ORACLE_HOME/sysman/emd/state/*
rm -r $ORACLE_HOME/sysman/emd/upload/*
rm $ORACLE_HOME/sysman/emd/lastupld.xml
rm $ORACLE_HOME/sysman/emd/agntstmp.txt


3.Move all the files from $AGENT_HOME/sysman/log to different location

4. Start the agent
$AGENT_HOME/bin/emctl start agent

6. Force an upload to the OMS
$AGENT_HOME/bin/emctl upload

7.$AGENT_HOME/bin/emctl upload

8.Check the status of Agent in Agent Home page on Grid Console

9.Upload the output of each command and files in $AGENT_HOME/sysman/log