ntnSystemClfrPatternData

Supports arbitrary pattern match classification. 
Up to 128 bytes of data within the first 128 bytes 
of a packet can be identified for pattern matching 
purposes. This object and the 
ntnSystemClfrPatternPosition object specify byte 
patterns and their position in a packet. When a 
packet is classified using this data, the appropriate 
bytes, or portions thereof, in the packet are compared 
against the byte patterns defined by the this 
attribute. If the data at the specified packet offset 
is the same, the packet is considered a match.
              
The byte patterns used for comparison purposes 
are specified using this attribute. The target 
data is placed in the octet string at the 
positions specified through the 
ntnSystemClfrPatternPosition attribute. All 
other bytes should be set to zero
              
For example, to specify that byte positions 5-8 
and the high-order nibble (4 bits) of bytes 13-16 
should be examined, the associated
ntnSystemClfrPatternPosition value would be set 
as follows:
              
ntnSystemClfrPatternPosition (size 16): 
00:00:00:00:FF:FF:FF:FF:00:00:00:00:0F:0F:0F:0F
              
The target byte patterns would then be placed 
in bytes 5-8 and in portions of bytes 13-16 of
this attribute:
              
ntnSystemClfrPatternData (size 16): 
00:00:00:00:XX:XX:XX:XX:00:00:00:00:0Y:0Y:0Y:0Y
              
Note that an implementation may not support pattern
matching, also know as offset filtering, for the
maximum number of bytes supported by the pattern
match attributes. The number of bytes that can 
contain data for comparison purposes and the position
of those bytes in relation to the start of a packet 
are thus implementation dependent.
              
Use of this object and the associated 
ntnSystemClfrPatternPosition object invalidates 
the use of any other classification data in 
this and related (through the ntnClfrComponentTable) 
classifier entries. In other words, providing 
an explicit pattern overrides the implicit 
patterns defined when classification data is 
specified for other fields, such as the IP source 
address or EtherType classification attributes.
              
A zero length string is used to indicate that 
explicit pattern matching is not requested.
              
Version 1/2 attribute.

MIB

NTN-QOS-POLICY-EVOL-PIB

OID

.1.3.6.1.4.1.45.4.7.1.5.6.1.8

Type

column

Access

readwrite

Status

current

Parent

ntnSystemClfrEntry