filterPktStatus

RMON-MIB · .1.3.6.1.2.1.16.7.1.1.7

Object

column r/w SNMPv2-SMIInteger32

The status that is to be matched with the input packet.
The only bits relevant to this match algorithm are those that
have the corresponding filterPktStatusMask bit equal to one.
The following two rules are then applied to every packet:
              
(1) For each relevant bit from the packet status with the
    corresponding filterPktStatusNotMask bit set to zero, if
    the bit from the packet status is not equal to the
              
    corresponding bit from the filterPktStatus, then the
    packet will fail this status match.
              
(2) If for every relevant bit from the packet status with the
    corresponding filterPktStatusNotMask bit set to one, the
    bit from the packet status is equal to the corresponding
    bit from the filterPktStatus, then the packet will fail
    this status match.
              
Any packets that have not failed either of the two matches
above have passed this status match.  In particular, a zero
length status filter will match any packet's status.
              
The value of the packet status is a sum.  This sum
initially takes the value zero.  Then, for each
error, E, that has been discovered in this packet,
2 raised to a value representing E is added to the sum.
The errors and the bits that represent them are dependent
on the media type of the interface that this channel
is receiving packets from.
              
The errors defined for a packet captured off of an
Ethernet interface are as follows:
              
    bit #    Error
        0    Packet is longer than 1518 octets
        1    Packet is shorter than 64 octets
        2    Packet experienced a CRC or Alignment error
              
For example, an Ethernet fragment would have a
value of 6 (2^1 + 2^2).
              
As this MIB is expanded to new media types, this object
will have other media-specific errors defined.
              
For the purposes of this status matching algorithm, if the
packet status is longer than this filterPktStatus object,
this object is conceptually extended with '0' bits until it
reaches the size of the packet status.
              
This object may not be modified if the associated
filterStatus object is equal to valid(1).

Context

MIB: RMON-MIB
OID: .1.3.6.1.2.1.16.7.1.1.7
Type: column
Access: readwrite
Status: current
Parent: filterEntry
Table: filterTable
Siblings: 10

Syntax

SNMPv2-SMIInteger32

Source: SNMPv2-SMIInteger32
Base type: Integer32

Values & Constraints

Type Constraints

range: -2147483648..2147483647

Related Objects

Sibling Objects

Object	Type	Syntax	OID
filterIndex An index that uniquely identifies an entry in the filter table. Each such entry defines one filter that is to be applied to every packet received on an interface.	column	Integer32	`.1.3.6.1.2.1.16.7.1.1.1`
filterOwner The entity that configured this entry and is therefore using the resources assigned to it.	column	OwnerString	`.1.3.6.1.2.1.16.7.1.1.10`
filterStatus The status of this filter entry.	column	EntryStatus	`.1.3.6.1.2.1.16.7.1.1.11`
filterChannelIndex This object identifies the channel of which this filter is a part. The filters identified by a particular value of this object are associated with the same channel as identified …	column	Integer32	`.1.3.6.1.2.1.16.7.1.1.2`
filterPktDataOffset The offset from the beginning of each packet where a match of packet data will be attempted. This offset is measured from the point in the physical layer packet after the framing…	column	Octets SNMPv2-SMIInteger32	`.1.3.6.1.2.1.16.7.1.1.3`
filterPktData The data that is to be matched with the input packet. For each packet received, this filter and the accompanying filterPktDataMask and filterPktDataNotMask will be adjusted for th…	column	OctetString	`.1.3.6.1.2.1.16.7.1.1.4`
filterPktDataMask The mask that is applied to the match process. After adjusting this mask for the offset, only those bits in the received packet that correspond to bits set in this mask are releva…	column	OctetString	`.1.3.6.1.2.1.16.7.1.1.5`
filterPktDataNotMask The inversion mask that is applied to the match process. After adjusting this mask for the offset, those relevant bits in the received packet that correspond to bits cleared in t…	column	OctetString	`.1.3.6.1.2.1.16.7.1.1.6`
filterPktStatusMask The mask that is applied to the status match process. Only those bits in the received packet that correspond to bits set in this mask are relevant for further processing by the st…	column	SNMPv2-SMIInteger32	`.1.3.6.1.2.1.16.7.1.1.8`
filterPktStatusNotMask The inversion mask that is applied to the status match process. Those relevant bits in the received packet status that correspond to bits cleared in this mask must all be equal t…	column	SNMPv2-SMIInteger32	`.1.3.6.1.2.1.16.7.1.1.9`