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Query on ILMI 4.0 address registration procedures.

  • From: "Ekpal Singh" <ekpal@tataelxsi.co.in>
  • Date: Thu, 28 Jun 2001 23:01:12 +0530

Hi everybody,
                    I am implementing the ILMI 4.0 protocol used by UNI for address registration and Auto configuration of PVCs.  I am implementing the User Side IME. The Specification says that for address registration procedures the Network side IME can register as many network prefixes as it wants. i have a few questions.
 
1. How many network prefixes can be registered for an atm interface by the switch?  In what scenario more than one network prefixes are registerd by the switch.  And if more than one network prefixes are available, while registration of an ATM address which network prefix will be used.
 
2. Two types of ATM addresses exist in ATM. Individual and Group addresses.  These are distinguished by the AFI value in the ATM address.  From UNI 4.0 specs ANYCAST service uses the group addresses.  For the address registeration of the ANYCAST address does the switch provide with a different Network prefix. meaning the AFI value is different. Or if the user wants to register an anycast atm address it just replaces the  AFI value for an Individual address with the AFI value for Group address.
 
3. According to ILMI specification 4.0. "The Network prefix for  private atm address provided by the switch has 13 octets. But in case of Native E.164 address structures the network prefix is a mere 8 octets".  Then in that case who provides the 4 bytes for the HO DSP part or do we have to set them to zero. 
 
thanks
regards
ekpal