Not getting IP from DHCP on 2950

Dear all,
access switch is connected to base switch and base switch is connected to DHCP server, however users are connected to access switch are not getting IP address. Hence i would like to know the solution from experts.
I remember there is a command in CATOS "set port host" by this way we can enhance port to get IP quickly..if there is any command similiar in IOS?
Your assistance will be highly appreciated.
Regards,
Khan.

Khan,
The problem of users not getting IP from the DHCP usually happens when 'spanning-tree portfast' is not enabled on access ports. PCs don't wait long enough for DHCP responses and time out.
Can you make sure all the access ports, to which the users are connected to, have spanning tree portfast enabled.
HTH,
Sundar

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         at com.thortech.xl.adapterGlue.ScheduleItemEvents.adpLNCREATEUSER.implementation(adpLNCREATEUSER.java:160)
         at com.thortech.xl.client.events.tcBaseEvent.run(Unknown Source)
         at com.thortech.xl.dataobj.tcDataObj.runEvent(Unknown Source)
         at com.thortech.xl.dataobj.tcScheduleItem.runMilestoneEvent(Unknown Source)
         at com.thortech.xl.dataobj.tcScheduleItem.eventPostInsert(Unknown Source)
         at com.thortech.xl.dataobj.tcDataObj.insert(Unknown Source)
         at com.thortech.xl.dataobj.tcDataObj.save(Unknown Source)
         at com.thortech.xl.ejb.beansimpl.tcProvisioningOperationsBean.retryTasks(Unknown Source)
         at com.thortech.xl.ejb.beans.tcProvisioningOperationsSession.retryTasks(Unknown Source)
         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
         at java.lang.reflect.Method.invoke(Method.java:585)
         at com.evermind.server.ejb.interceptor.joinpoint.EJBJoinPointImpl.invoke(EJBJoinPointImpl.java:35)
         at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)
         at com.evermind.server.ejb.interceptor.system.DMSInterceptor.invoke(DMSInterceptor.java:52)
         at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)
         at com.evermind.server.ejb.interceptor.system.TxRequiredInterceptor.invoke(TxRequiredInterceptor.java:50)
         at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)
         at com.evermind.server.ejb.interceptor.system.SecurityRoleInterceptor.invoke(SecurityRoleInterceptor.java:47)
         at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)
         at com.evermind.server.ejb.interceptor.system.DMSInterceptor.invoke(DMSInterceptor.java:52)
         at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)
         at com.evermind.server.ejb.InvocationContextPool.invoke(InvocationContextPool.java:55)
         at com.evermind.server.ejb.StatelessSessionEJBObject.OC4J_invokeMethod(StatelessSessionEJBObject.java:87)
         at tcProvisioningOperations_RemoteProxy_6ocop18.retryTasks(Unknown Source)
         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
         at java.lang.reflect.Method.invoke(Method.java:585)
         at com.evermind.server.rmi.RmiMethodCall.run(RmiMethodCall.java:53)
         at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)
         at java.lang.Thread.run(Thread.java:595)
    Caused by: java.lang.NullPointerException
         at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:781)
         at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:669)
         at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:913)
         ... 46 more

    check if DIIOP service is turned on at the Lotus Domino side...
    Oleg.

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