Subject: [Megaco] ";at-most-once" in the Megaco ABNF

From: "J.H. Kim" <[email-masked]>
Date: Mon, 10 Dec 2001 17:46:35 +0900

Hi, all

Could anybody tell me the meaning of the "; at-most-once" the ABNF description of Megaco?

================================
contextAudit	   = ContextAuditToken LBRKT contextAuditProperties *(COMMA  contextAuditProperties) RBRKT
; at-most-once
contextAuditProperties = ( TopologyToken / EmergencyToken / PriorityToken /  IndAudcontextAttrDescriptor /
                        ContextAttrDescriptorCapAud/IndAudContextAttrCap / ContextAttrPackages)
=================================

Does the above description mean that the TopologyToken can appear at most one time in the contextAudit?

Thanks forward for your help.

G'Day

---------------------------------------------------------
Jay H Kim 
R&D Center  XENER Systems Inc.
Office: +82-2-3482-4901. ext.411 
Fax: +82-2-3483-4902 
+mailto:[email-masked] 
Homepage: www.xener.com
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