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IEEE Std 802.16-2001

LOCAL AND METROPOLITAN AREA NETWORKS—PART 16:

11.4.9.4.2 VPI classifier

This field defines the VPI on which to classify ATM cells for the service flow.

Type

Length

Value

 

 

 

[24/25].99.1

2

8 or 12-bit VPI field value

 

 

 

11.4.9.4.3 VCI classification

This field defines the VCI on which to classify ATM cells for the service flow.

This TLV shall immediately follow the VPI TLV with which it is associated.

Type

Length

Value

 

 

 

[24/25].99.2

2

16-bit VCI field value

 

 

 

11.4.10 HMAC Tuple

This parameter contains the HMAC Key Sequence Number concatenated with an HMAC digest used for message authentication. The HMAC Key Sequence Number is stored in the four least significant bits of the first byte of the HMAC Tuple, and the most significant four bits are reserved. The HMAC-Tuple attribute format is shown in Table 142 and Table 143.

Table 142—HMAC Tuple definition

Type

Length

Value

Scope

 

 

 

 

27

21

SeeTable 143.

DSx-REQ, DSx-RSP,

 

 

 

DSx-ACK, REG-REQ,

 

 

 

REG-RSP, RES-CMD,

 

 

 

DREG-CMD, TFTP-CPLT

 

 

 

 

Table 143—HMAC Tuple value field

Field

Length

Note

 

 

 

reserved

4 bits

 

 

 

 

HMAC Key Sequence Number

4 bits

 

 

 

 

HMAC digest

160 bits

HMAC with SHA-1

 

 

 

318

Copyright © 2002 IEEE. All rights reserved.

AIR INTERFACE FOR FIXED BROADBAND WIRELESS ACCESS SYSTEMS

IEEE Std 802.16-2001

11.4.11 Vendor-specific information

Vendor-specific information for SSs, if present, shall be encoded in the vendor specific information field (VSIF) (type 43) using the Vendor ID field (11.4.3) to specify which tuples apply to which vendor’s products. The Vendor ID shall be the first TLV embedded inside VSIF. If the first TLV inside VSIF is not a Vendor ID, then the TLV shall be discarded.

This configuration setting may appear multiple times. The same Vendor ID may appear multiple times. This configuration setting may be nested inside a Packet Classification Configuration Setting, a Service Flow Configuration Setting, or a Service Flow Response. However, there shall not be more than one Vendor ID TLV inside a single VSIF.

Type

Length

Value

 

 

 

43

n

Per vendor definition

 

 

 

Example:

Configuration with vendor A specific fields and vendor B specific fields:

VSIF (43) + n (number of bytes inside this VSIF)

8 (Vendor ID Type) + 3 (length field) + Vendor ID of Vendor A Vendor A Specific Type #1 + length of the field + Value #1 Vendor A Specific Type #2 + length of the field + Value #2

VSIF (43) + n (number of bytes inside this VSIF)

8 (Vendor ID Type) + 3 (length field) + Vendor ID of Vendor B Vendor B Specific Type + length of the field + Value

Copyright © 2002 IEEE. All rights reserved.

319

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