TypeP

  • Base type OctetString
  • Range 0 — 512

This textual convention is a display string used to describe the protocol encapsulation list of a packet, and is used as the value of the SYNTAX clause for the type of the Src and Dst of a measure. The RFC2895 specifies a macro named PROTOCOL-IDENTIFIER for the definition of protocol identifiers, while its companion document, the RFC2896 defines a set of protocol identifiers. TypeP is defined as a display string. It consists of a list of dot separated protocol names. Each protocol name has been previously defined using the macro PROTOCOL-IDENTIFIER of the RFC 2895. Examples: The RFC2896 defines the protocol identifiers 'ether2', 'ip', 'ipip4', 'udp', 'tcp', 'telnet'... The TypeP of the source address corresponding to telnet is the string 'ip.tcp.telnet'. The TypeP of the source address corresponding to UDP packets sent in an IP tunnel is the string 'ip.ipip4.udp'. Note: A performance measure is active, so generally a TypeP value does not describe the link layer (i.e. ether2...). Valid Internet packets are sent from Src to Dst. Then the choice of the link layer relies on the Internet stack.