value persist across such re-initializations."
REFERENCE
"RFC 3095, Section 5.1.1"
::= { rohcChannelEntry 2 }
rohcChannelType OBJECT-TYPE
SYNTAX INTEGER {
notInUse(1),
rohc(2),
dedicatedFeedback(3)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Type of usage of the channel. A channel might be currently
not in use for ROHC or feedback, it might be in use as
a ROHC channel carrying packets and optional piggy-backed
feedback, or it might be used as a dedicated feedback
channel exclusively carrying feedback."
::= { rohcChannelEntry 3 }
rohcChannelFeedbackFor OBJECT-TYPE
SYNTAX RohcChannelIdentifierOrZero
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The index of another channel of this interface for which
the channel serves as feedback channel.
If no feedback information is transferred on this channel,
then the value of this ID is 0. If the channel type is set
to notInUse(1), then the value of this object must be 0.
If the channel type is rohc(2) and the value of this object
is a valid channel ID, then feedback information is
piggy-backed on the ROHC channel. If the channel type is
dedicatedFeedback(3), then feedback is transferred on this
channel and the value of this object MUST be different from
0 and MUST identify an existing ROHC channel."
REFERENCE
"RFC 3095, Section 5.1.1"
::= { rohcChannelEntry 4 }
rohcChannelDescr OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A textual description of the channel."
::= { rohcChannelEntry 5 }
rohcChannelStatus OBJECT-TYPE
SYNTAX INTEGER {
enabled(1),
disabled(2)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Status of the channel."
::= { rohcChannelEntry 6 }
--
-- Instances of ROHC
--
-- This table lists properties of running instances of ROHC
-- compressors and decompressors at the managed node.
--
rohcInstanceTable OBJECT-TYPE
SYNTAX SEQUENCE OF RohcInstanceEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table lists properties of running instances
of robust header compressors and decompressors
at IP interfaces. It is indexed by interface number,
the type of instance (compressor or decompressor),
and the ID of the channel used by the instance as
ROHC channel.
Note that the rohcChannelID uniquely identifies an
instance. The ifIndex and rohcInstanceType are part
of the index, because it simplifies accessing instances
per interface and for addressing either compressors or
decompressors only."
::= { rohcInstanceObjects 2 }
rohcInstanceEntry OBJECT-TYPE
SYNTAX RohcInstanceEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry describing a particular instance
of a robust header compressor or decompressor."
INDEX { ifIndex, rohcInstanceType, rohcChannelID }
::= { rohcInstanceTable 1 }
RohcInstanceEntry ::= SEQUENCE {
rohcInstanceType INTEGER,
rohcInstanceFBChannelID RohcChannelIdentifierOrZero,
rohcInstanceVendor OBJECT IDENTIFIER,
rohcInstanceVersion SnmpAdminString,
rohcInstanceDescr SnmpAdminString,
rohcInstanceClockRes Unsigned32,
rohcInstanceMaxCID Unsigned32,
rohcInstanceLargeCIDs TruthValue,
rohcInstanceMRRU Unsigned32,
rohcInstanceContextStorageTime TimeInterval,
rohcInstanceStatus INTEGER,
rohcInstanceContextsTotal Counter32,
rohcInstanceContextsCurrent Unsigned32,
rohcInstancePackets Counter32,
rohcInstanceIRs Counter32,
rohcInstanceIRDYNs Counter32,
rohcInstanceFeedbacks Counter32,
rohcInstanceCompressionRatio RohcCompressionRatio
}
rohcInstanceType OBJECT-TYPE
SYNTAX INTEGER {
compressor(1),
decompressor(2)
}
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Type of the instance of ROHC. It is either a
compressor instance or a decompressor instance."
::= { rohcInstanceEntry 2 }
rohcInstanceFBChannelID OBJECT-TYPE
SYNTAX RohcChannelIdentifierOrZero
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Identifier of the channel used for feedback.
If no feedback channel is used, the value of
this object is 0 ."
REFERENCE
"RFC 3095, Section 5.1.1"
::= { rohcInstanceEntry 4 }
rohcInstanceVendor OBJECT-TYPE
SYNTAX OBJECT IDENTIFIER
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"An object identifier that identifies the vendor who
provides the implementation of robust header description.
This object identifier SHALL point to the object identifier
directly below the enterprise object identifier
{1 3 6 1 4 1} allocated for the vendor. The value must be
the object identifier {0 0} if the vendor is not known."
::= { rohcInstanceEntry 5 }
rohcInstanceVersion OBJECT-TYPE
SYNTAX SnmpAdminString (SIZE (0..32))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The version number of the implementation of robust header
compression. The zero-length string shall be used if the
implementation does not have a version number.
It is suggested that the version number consist of one or
more decimal numbers separated by dots, where the first
number is called the major version number."
::= { rohcInstanceEntry 6 }
rohcInstanceDescr OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A textual description of the implementation."
::= { rohcInstanceEntry 7 }
rohcInstanceClockRes OBJECT-TYPE
SYNTAX Unsigned32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object indicates the system clock resolution in
units of milliseconds. A zero (0) value means that there
is no clock available."
::= { rohcInstanceEntry 8 }
rohcInstanceMaxCID OBJECT-TYPE
SYNTAX Unsigned32 (1..16383)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The highest context ID number to be used by the
compressor. Note that this parameter is not coupled to,
but in effect further constrained by,
rohcChannelLargeCIDs."
REFERENCE
"RFC 3095, Section 5.1.1"
::= { rohcInstanceEntry 9 }
rohcInstanceLargeCIDs OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"When retrieved, this boolean object returns false if
the short CID representation (0 bytes or 1 prefix byte,
covering CID 0 to 15) is used; it returns true, if the
embedded CID representation (1 or 2 embedded CID bytes
covering CID 0 to 16383) is used."
REFERENCE
"RFC 3095, Section 5.1.1"
::= { rohcInstanceEntry 10 }
rohcInstanceMRRU OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Maximum reconstructed reception unit. This is the
size of the largest reconstructed unit in octets that
the decompressor is expected to reassemble from
segments (see RFC 3095, Section 5.2.5). Note that this
size includes the CRC. If MRRU is negotiated to be 0,
no segment headers are allowed on the channel."
REFERENCE
"RFC 3095, Section 5.1.1"
::= { rohcInstanceEntry 11 }
rohcInstanceContextStorageTime OBJECT-TYPE
SYNTAX TimeInterval
UNITS "centi-seconds"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object indicates the default maximum amount of time
information on a context belonging to this instance is kept
as entry in the rohcContextTable after the context is
expired or terminated. The value of this object is used
to initialize rohcContexStorageTime object when a new
context is created.
Changing the value of an rohcInstanceContextStorageTime
instance does not affect any entry of the rohcContextTable
created previously.
ROHC-MIB implementations SHOULD store the set value of this
object persistently."
DEFVAL { 360000 }
::= { rohcInstanceEntry 12 }
rohcInstanceStatus OBJECT-TYPE
SYNTAX INTEGER {
enabled(1),
disabled(2)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Status of the instance of ROHC."
::= { rohcInstanceEntry 13 }
rohcInstanceContextsTotal OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Counter of all contexts created by this instance.
Discontinuities in the value of this counter can
occur at re-initialization of the management
system, and at other times as indicated by the
value of ifCounterDiscontinuityTime."
::= { rohcInstanceEntry 14 }
rohcInstanceContextsCurrent OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of currently active contexts created by this
instance."
::= { rohcInstanceEntry 15 }
rohcInstancePackets OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Counter of all packets passing this instance.
Discontinuities in the value of this counter can
occur at re-initialization of the management
system, and at other times as indicated by the
value of ifCounterDiscontinuityTime."
::= { rohcInstanceEntry 16 }
rohcInstanceIRs OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of all IR packets that are either sent
or received by this instance.
Discontinuities in the value of this counter can
occur at re-initialization of the management
system, and at other times as indicated by the
value of ifCounterDiscontinuityTime."
REFERENCE
"RFC 3095, Section 5.7.7.1"
::= { rohcInstanceEntry 17 }
rohcInstanceIRDYNs OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of all IR-DYN packets that are either sent
or received by this instance.
Discontinuities in the value of this counter can
occur at re-initialization of the management
system, and at other times as indicated by the
value of ifCounterDiscontinuityTime."
REFERENCE
"RFC 3095, Section 5.7.7.2"
::= { rohcInstanceEntry 18 }
rohcInstanceFeedbacks OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of all feedbacks that are either sent
or received by this instance.
Discontinuities in the value of this counter can
occur at re-initialization of the management
system, and at other times as indicated by the
value of ifCounterDiscontinuityTime."
::= { rohcInstanceEntry 19 }
rohcInstanceCompressionRatio OBJECT-TYPE
SYNTAX RohcCompressionRatio
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object indicates the compression ratio so far over all
packets on the channel served by this instance. The
compression is computed over all bytes of the IP packets
including the IP header but excluding all lower layer
headers."
::= { rohcInstanceEntry 20 }
--
-- Profile Table
--
rohcProfileTable OBJECT-TYPE
SYNTAX SEQUENCE OF RohcProfileEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table lists a set of profiles supported by the
instance."
REFERENCE
"RFC 3095, Section 5.1.1"
::= { rohcInstanceObjects 3 }
rohcProfileEntry OBJECT-TYPE
SYNTAX RohcProfileEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry describing a particular profile supported by
the instance. It is indexed by the rohcChannelID
identifying the instance and by the rohcProfile."
INDEX { rohcChannelID, rohcProfile }
::= { rohcProfileTable 1 }
RohcProfileEntry ::= SEQUENCE {
rohcProfile Unsigned32,
rohcProfileVendor OBJECT IDENTIFIER,
rohcProfileVersion SnmpAdminString,
rohcProfileDescr SnmpAdminString,
rohcProfileNegotiated TruthValue
}
rohcProfile OBJECT-TYPE
SYNTAX Unsigned32 (0..65535)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Identifier of a profile supported. For a listing of
possible profile values, see the IANA registry for
’RObust Header Compression (ROHC) Profile Identifiers’
at http://www.iana.org/assignments/rohc-pro-ids"
::= { rohcProfileEntry 2 }
rohcProfileVendor OBJECT-TYPE
SYNTAX OBJECT IDENTIFIER
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"An object identifier that identifies the vendor who
provides the implementation of robust header description.
This object identifier SHALL point to the object identifier
directly below the enterprise object identifier
{1 3 6 1 4 1} allocated for the vendor. The value must be
the object identifier {0 0} if the vendor is not known."
::= { rohcProfileEntry 3 }
rohcProfileVersion OBJECT-TYPE
SYNTAX SnmpAdminString (SIZE (0..32))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The version number of the implementation of robust header
compression. The zero-length string shall be used if the
implementation does not have a version number.
It is suggested that the version number consist of one or
more decimal numbers separated by dots, where the first
number is called the major version number."
::= { rohcProfileEntry 4 }
rohcProfileDescr OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A textual description of the implementation."
::= { rohcProfileEntry 5 }
rohcProfileNegotiated OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"When retrieved, this boolean object returns true
if the profile has been negotiated to be used at
the instance, i.e., is supported also be the
corresponding compressor/decompressor."
::= { rohcProfileEntry 6 }
--
-- Context Table
--
rohcContextTable OBJECT-TYPE
SYNTAX SEQUENCE OF RohcContextEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table lists and describes all compressor contexts
per instance."
::= { rohcObjects 2 }
rohcContextEntry OBJECT-TYPE
SYNTAX RohcContextEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry describing a particular compressor context."
INDEX {
rohcChannelID,
rohcContextCID
}
::= { rohcContextTable 1 }
RohcContextEntry ::= SEQUENCE {
rohcContextCID Unsigned32,
rohcContextCIDState INTEGER,
rohcContextProfile Unsigned32,
rohcContextDecompressorDepth Unsigned32,
rohcContextStorageTime TimeInterval,
rohcContextActivationTime DateAndTime,
rohcContextDeactivationTime DateAndTime,
rohcContextPackets Counter32,
rohcContextIRs Counter32,
rohcContextIRDYNs Counter32,
rohcContextFeedbacks Counter32,
rohcContextDecompressorFailures Counter32,
rohcContextDecompressorRepairs Counter32,
rohcContextAllPacketsRatio RohcCompressionRatio,
rohcContextAllHeadersRatio RohcCompressionRatio,
rohcContextAllPacketsMeanSize Unsigned32,
rohcContextAllHeadersMeanSize Unsigned32,
rohcContextLastPacketsRatio RohcCompressionRatio,
rohcContextLastHeadersRatio RohcCompressionRatio,
rohcContextLastPacketsMeanSize Unsigned32,
rohcContextLastHeadersMeanSize Unsigned32
}
rohcContextCID OBJECT-TYPE
SYNTAX Unsigned32 (0..16383)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The context identifier (CID) of this context."
REFERENCE
"RFC 3095, Sections 5.1.1 and 5.1.3"
::= { rohcContextEntry 2 }
rohcContextCIDState OBJECT-TYPE
SYNTAX INTEGER {
unused(1),
active(2),
expired(3),
terminated(4)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"State of the CID. When a CID is assigned to a context,
its state changes from `unused’ to `active’. The active
context may stop operation due to some explicit
signalling or after observing no packet for some specified
time. In the first case then the CID state changes to
`terminated’, in the latter case it changes to `expired’.
If the CID is re-used again for another context, the
state changes back to `active’."
::= { rohcContextEntry 3 }
rohcContextProfile OBJECT-TYPE
SYNTAX Unsigned32 (0..65535)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Identifier of the profile for this context.
The profile is identified by its index in the