Not able to do an snmp walk on the solaris system

When we try the snmp walk on the solaris system I get an error as snmpdx: [ID 102292 daemon.error] agent snmpd not respondingHowever snmpdx is seen in the process list.Please advise.
[210 byte] By [roly_r] at [2007-11-26 5:53:48]
# 1
do you see it listed in netstat ? # netstat -an |grep 161*.161 IdleHow are you using the command ? # snmpwalk localhost private tcp.tcpConnTable.tcpConnEntry
sh26931 at 2007-7-6 13:06:10 > top of Java-index,Administration Tools,Solstice Enterprise Agents...