#Mac atm network registration

In the SunATM software package, ILMI service is provided by an address registration daemon, ilmid.ДЄddress registration with a switch is controlled by ilmid. The ILMI service interface is based on the use of SNMP over AAL5. The UNI specification specifies the Interim Local Management Interface ( ILMI) service interface for a client to learn and register its ATM address. Its value is obtained by the system at configuration time. On a SunATM host, the prefix associated with the local switch fabric is represented by the $prefix variable. Every ATM switch fabric is configured with a 13 octet prefix. The 13 octets that make up the rest of the ATM address are called the Network Prefix, and are derived from the ATM switch fabric to which the interface is connected.

#Mac atm network mac

The End System Identifier (ESI) field within the ATM address is a unique 6 octet value this can be the IEEE hardware MAC address conventionally associated with every network interface. Every ATM interface has an ATM address in addition to its IP address.ДЄTM addresses, like Network Service Access Point (NSAP) addresses, are 20 octets long. UNI signalling uses ATM addresses for signalling. This chapter contains the following sections: This signalling, called Q.2931, runs on top of QSAAL and uses VC 5 for signalling as specified in the Forum specification. Versions 3.0, 3.1, and 4.0 of that specification are supported. SunATM signalling conforms to the user network interface (UNI) specification of the ATM Forum. Those differences will be discussed in later sections of this chapter. The transparency to IP is enabled in different ways in Classical IP and LAN Emulation. IP treats the ATM interface as a subnet, choosing the interface used to send a packet out based on the IP address of the destination and on the IP address and netmask of the interface itself. The atmifconfig(1M) command must be used to plumb and unplumb ATM interfaces. Because of the different plumbing of the ATM modules, the plumb and unplumb options of ifconfig will not work on ATM interfaces. UDP/IP applications run without modifications over these modules, and all the utilities associated with the network interfaces also run without modification and display similar results (for example, netstat and ifconfig utilities), with one exception.

#Mac atm network drivers

As an ATM interface starts up, appropriate modules and drivers are plumbed. Every SunATM interface has a subnet IP address. Thus IP itself sees the ATM interface just as it sees any traditional network interface. This chapter discusses some of the key ideas of these two methods.Д«oth methods allow IP to run transparently over the ATM interface. The SunATM architecture supports all of these methods. There are two standard ways of doing this: Classical IP, standardized in RFC 1577, and LAN Emulation, standardized in the LAN Emulation 1.0 specification from the ATM Forum. The implementation on the host must therefore reconcile the differences in these two paradigms. ATM is a connection-oriented network protocol, which means that a connection must be established between two communicating entities before data transfer can begin.