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IEEE Std 802.16-2001 LOCAL AND METROPOLITAN AREA NETWORKS—PART 16:

6.2.9.10 Establish IP connectivity

At this point, the SS shall invoke Dynamic Host Configuration Protocol (DHCP) mechanisms [IETF RFC 2131] in order to obtain an IP address and any other parameters needed to establish IP connectivity. The DHCP response shall contain the name of a file which contains further configuration parameters. Establishment of IP connectivity shall be performed on the SS’s Secondary Management Connection; see Table 62.

Table 62—Establishing IP connectivity

SS

 

DHCP

send DHCP request to broad-

 

 

cast address

 

 

----------------

DHCP discover------------

>

 

 

check SS MAC address &

 

 

respond

<--------------

DHCP offer -----------------

 

choose server

 

 

----------------

DHCP request--------------

>

 

 

process request

<--------------

DHCP response--------------

 

set up IP parameters from

 

 

DHCP response

 

 

 

 

 

6.2.9.11 Establish time of day

The SS and BS need to have the current date and time. This is required for time-stamping logged events for retrieval by the management system. This need not be authenticated and need be accurate only to the nearest second.

The protocol by which the time of day shall be retrieved is defined in [IETF RFC 868]. Refer to Table 63. The request and response shall be transferred using user datagram protocol (UDP). The time retrieved from the server [Universal Coordinated Time (UTC)] shall be combined with the time offset received from the DHCP response to create the current local time. Establishment of time of day shall be performed on the SS’s Secondary Management Connection.

Table 63—Establishing time of day

SS

Time Server

send request to time server

----------------

time of day request------------

>

 

 

process request

<--------------

time of day response--------------

 

set up / correct time of day from response

114

Copyright © 2002 IEEE. All rights reserved.

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