ROHC-MIB Table View

Table-centric layout grouping table, row, and column objects.

Tables
4
Rows
4
Columns
49
.1.3.6.1.2.1.112.1.1.1 · 1 row entry · 5 columns
This table lists and describes all ROHC channels
per interface.
rohcChannelEntry entry .1.3.6.1.2.1.112.1.1.1.1
An entry describing a particular script. Every script that
is stored in non-volatile memory is required to appear in

this script table.

Note, that the rohcChannelID identifies the channel
uniq…
Indexes
IF-MIBifIndex rohcChannelID
Column Syntax OID
rohcChannelID
The locally arbitrary, but unique identifier associated
with this channel. The value is REQUIRED to be unique
per ROHC MIB implementation independent of the associated
interface.

The value is REQUIRED to…
RohcChannelIdentifier
Textual Convention: RohcChannelIdentifier Unsigned32
Type Constraints:
range: 1..4294967295
.1.3.6.1.2.1.112.1.1.1.1.2
rohcChannelType
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 f…
Enumeration
Enumerated Values:
1notInUse
2rohc
3dedicatedFeedback
.1.3.6.1.2.1.112.1.1.1.1.3
rohcChannelFeedbackFor
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 …
RohcChannelIdentifierOrZero
Textual Convention: RohcChannelIdentifierOrZero Unsigned32
Type Constraints:
range: 0..4294967295
.1.3.6.1.2.1.112.1.1.1.1.4
rohcChannelDescr
A textual description of the channel.
SNMP-FRAMEWORK-MIBSnmpAdminString
Textual Convention: SNMP-FRAMEWORK-MIBSnmpAdminString OctetString
Type Constraints:
range: 0..255
.1.3.6.1.2.1.112.1.1.1.1.5
rohcChannelStatus
Status of the channel.
Enumeration
Enumerated Values:
1enabled
2disabled
.1.3.6.1.2.1.112.1.1.1.1.6
.1.3.6.1.2.1.112.1.1.2 · 1 row entry · 18 columns
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.
rohcInstanceEntry entry .1.3.6.1.2.1.112.1.1.2.1
An entry describing a particular instance
of a robust header compressor or decompressor.
Indexes
IF-MIBifIndex rohcInstanceType rohcChannelID
Column Syntax OID
rohcInstanceType
Type of the instance of ROHC. It is either a
compressor instance or a decompressor instance.
Enumeration
Enumerated Values:
1compressor
2decompressor
.1.3.6.1.2.1.112.1.1.2.1.2
rohcInstanceFBChannelID
Identifier of the channel used for feedback.
If no feedback channel is used, the value of
this object is 0 .
RohcChannelIdentifierOrZero
Textual Convention: RohcChannelIdentifierOrZero Unsigned32
Type Constraints:
range: 0..4294967295
.1.3.6.1.2.1.112.1.1.2.1.4
rohcInstanceVendor
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
{…
ObjectIdentifier .1.3.6.1.2.1.112.1.1.2.1.5
rohcInstanceVersion
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 c…
OctetString
Constraints:
range: 0-32
.1.3.6.1.2.1.112.1.1.2.1.6
rohcInstanceDescr
A textual description of the implementation.
SNMP-FRAMEWORK-MIBSnmpAdminString
Textual Convention: SNMP-FRAMEWORK-MIBSnmpAdminString OctetString
Type Constraints:
range: 0..255
.1.3.6.1.2.1.112.1.1.2.1.7
rohcInstanceClockRes
This object indicates the system clock resolution in
units of milliseconds. A zero (0) value means that there
is no clock available.
millisecondsSNMPv2-SMIUnsigned32
Textual Convention: SNMPv2-SMIUnsigned32 Unsigned32
Type Constraints:
range: 0..4294967295
.1.3.6.1.2.1.112.1.1.2.1.8
rohcInstanceMaxCID
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.
Unsigned32
Constraints:
range: 1-16383
.1.3.6.1.2.1.112.1.1.2.1.9
rohcInstanceLargeCIDs
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
SNMPv2-TCTruthValue
Textual Convention: SNMPv2-TCTruthValue Enumeration
Type Values:
1true
2false
.1.3.6.1.2.1.112.1.1.2.1.10
rohcInstanceMRRU
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 inclu…
SNMPv2-SMIUnsigned32
Textual Convention: SNMPv2-SMIUnsigned32 Unsigned32
Type Constraints:
range: 0..4294967295
.1.3.6.1.2.1.112.1.1.2.1.11
rohcInstanceContextStorageTime
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…
centi-secondsSNMPv2-TCTimeIntervalr/w
Textual Convention: SNMPv2-TCTimeInterval Integer32
Type Constraints:
range: 0..2147483647
.1.3.6.1.2.1.112.1.1.2.1.12
rohcInstanceStatus
Status of the instance of ROHC.
Enumeration
Enumerated Values:
1enabled
2disabled
.1.3.6.1.2.1.112.1.1.2.1.13
rohcInstanceContextsTotal
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 ifCo…
SNMPv2-SMICounter32
Textual Convention: SNMPv2-SMICounter32 Unsigned32
Type Constraints:
range: 0..4294967295
.1.3.6.1.2.1.112.1.1.2.1.14
rohcInstanceContextsCurrent
Number of currently active contexts created by this
instance.
SNMPv2-SMIUnsigned32
Textual Convention: SNMPv2-SMIUnsigned32 Unsigned32
Type Constraints:
range: 0..4294967295
.1.3.6.1.2.1.112.1.1.2.1.15
rohcInstancePackets
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 ifCounte…
SNMPv2-SMICounter32
Textual Convention: SNMPv2-SMICounter32 Unsigned32
Type Constraints:
range: 0..4294967295
.1.3.6.1.2.1.112.1.1.2.1.16
rohcInstanceIRs
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 …
SNMPv2-SMICounter32
Textual Convention: SNMPv2-SMICounter32 Unsigned32
Type Constraints:
range: 0..4294967295
.1.3.6.1.2.1.112.1.1.2.1.17
rohcInstanceIRDYNs
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…
SNMPv2-SMICounter32
Textual Convention: SNMPv2-SMICounter32 Unsigned32
Type Constraints:
range: 0..4294967295
.1.3.6.1.2.1.112.1.1.2.1.18
rohcInstanceFeedbacks
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 i…
SNMPv2-SMICounter32
Textual Convention: SNMPv2-SMICounter32 Unsigned32
Type Constraints:
range: 0..4294967295
.1.3.6.1.2.1.112.1.1.2.1.19
rohcInstanceCompressionRatio
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 l…
RohcCompressionRatio
Textual Convention: RohcCompressionRatio Unsigned32
.1.3.6.1.2.1.112.1.1.2.1.20
.1.3.6.1.2.1.112.1.1.3 · 1 row entry · 5 columns
This table lists a set of profiles supported by the
instance.
rohcProfileEntry entry .1.3.6.1.2.1.112.1.1.3.1
An entry describing a particular profile supported by
the instance. It is indexed by the rohcChannelID
identifying the instance and by the rohcProfile.
Indexes
rohcChannelID rohcProfile
Column Syntax OID
rohcProfile
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
Unsigned32
Constraints:
range: 0-65535
.1.3.6.1.2.1.112.1.1.3.1.2
rohcProfileVendor
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
{…
ObjectIdentifier .1.3.6.1.2.1.112.1.1.3.1.3
rohcProfileVersion
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 c…
OctetString
Constraints:
range: 0-32
.1.3.6.1.2.1.112.1.1.3.1.4
rohcProfileDescr
A textual description of the implementation.
SNMP-FRAMEWORK-MIBSnmpAdminString
Textual Convention: SNMP-FRAMEWORK-MIBSnmpAdminString OctetString
Type Constraints:
range: 0..255
.1.3.6.1.2.1.112.1.1.3.1.5
rohcProfileNegotiated
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.
SNMPv2-TCTruthValue
Textual Convention: SNMPv2-TCTruthValue Enumeration
Type Values:
1true
2false
.1.3.6.1.2.1.112.1.1.3.1.6
.1.3.6.1.2.1.112.1.2 · 1 row entry · 21 columns
This table lists and describes all compressor contexts
per instance.
rohcContextEntry entry .1.3.6.1.2.1.112.1.2.1
An entry describing a particular compressor context.
Indexes
rohcChannelID rohcContextCID
Column Syntax OID
rohcContextCID
The context identifier (CID) of this context.
Unsigned32
Constraints:
range: 0-16383
.1.3.6.1.2.1.112.1.2.1.2
rohcContextCIDState
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…
Enumeration
Enumerated Values:
1unused
2active
3expired
4terminated
.1.3.6.1.2.1.112.1.2.1.3
rohcContextProfile
Identifier of the profile for this context.
The profile is identified by its index in the
rohcProfileTable for this instance. There MUST exist a
corresponding entry in the rohcProfileTable using the
value of rohcContex…
Unsigned32
Constraints:
range: 0-65535
.1.3.6.1.2.1.112.1.2.1.4
rohcContextDecompressorDepth
This object indicates whether reverse decompression, for
example as described in RFC 3095, Section 6.1, is used
on this channel or not, and if used, to what extent.

Its value is only valid for decompresso…
SNMPv2-SMIUnsigned32
Textual Convention: SNMPv2-SMIUnsigned32 Unsigned32
Type Constraints:
range: 0..4294967295
.1.3.6.1.2.1.112.1.2.1.5
rohcContextStorageTime
The value of this object specifies how long this row
can exist in the rohcContextTable after the
rohcContextCIDState switched to expired(3) or
terminated(4). This object returns the remaining time
that the row may exi…
centi-secondsSNMPv2-TCTimeIntervalr/w
Textual Convention: SNMPv2-TCTimeInterval Integer32
Type Constraints:
range: 0..2147483647
.1.3.6.1.2.1.112.1.2.1.6
rohcContextActivationTime
The date and time when the context started to be able to
compress packets or decompress packets, respectively.
The value '0000000000000000'H is returned if the context
has not been activated yet.
SNMPv2-TCDateAndTime
Textual Convention: SNMPv2-TCDateAndTime OctetString
Type Constraints:
range: 8
range: 11
.1.3.6.1.2.1.112.1.2.1.7
rohcContextDeactivationTime
The date and time when the context stopped being able to
compress packets or decompress packets, respectively,
because it expired or was terminated for other reasons.
The value '0000000000000000'H is returned if the con…
SNMPv2-TCDateAndTime
Textual Convention: SNMPv2-TCDateAndTime OctetString
Type Constraints:
range: 8
range: 11
.1.3.6.1.2.1.112.1.2.1.8
rohcContextPackets
The number of all packets passing this context.

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 ifCoun…
SNMPv2-SMICounter32
Textual Convention: SNMPv2-SMICounter32 Unsigned32
Type Constraints:
range: 0..4294967295
.1.3.6.1.2.1.112.1.2.1.9
rohcContextIRs
The number of all IR packets sent or received,
respectively, by this context.

Discontinuities in the value of this counter can
occur at re-initialization of the management
system, and at other times as in…
SNMPv2-SMICounter32
Textual Convention: SNMPv2-SMICounter32 Unsigned32
Type Constraints:
range: 0..4294967295
.1.3.6.1.2.1.112.1.2.1.10
rohcContextIRDYNs
The number of all IR-DYN packets sent or received,
respectively, by this context.

Discontinuities in the value of this counter can
occur at re-initialization of the management
system, and at other times a…
SNMPv2-SMICounter32
Textual Convention: SNMPv2-SMICounter32 Unsigned32
Type Constraints:
range: 0..4294967295
.1.3.6.1.2.1.112.1.2.1.11
rohcContextFeedbacks
The number of all feedbacks sent or received,
respectively, by this context.

Discontinuities in the value of this counter can
occur at re-initialization of the management
system, and at other times as ind…
SNMPv2-SMICounter32
Textual Convention: SNMPv2-SMICounter32 Unsigned32
Type Constraints:
range: 0..4294967295
.1.3.6.1.2.1.112.1.2.1.12
rohcContextDecompressorFailures
The number of all decompressor failures so far in this
context. The number is only valid for decompressor
contexts, i.e., if rohcInstanceType has the value
decompressor(2).

Discontinuities in the value of…
SNMPv2-SMICounter32
Textual Convention: SNMPv2-SMICounter32 Unsigned32
Type Constraints:
range: 0..4294967295
.1.3.6.1.2.1.112.1.2.1.13
rohcContextDecompressorRepairs
The number of all context repairs so far in this
context. The number is only valid for decompressor
contexts, i.e., if rohcInstanceType has the value
decompressor(2).

Discontinuities in the value of this…
SNMPv2-SMICounter32
Textual Convention: SNMPv2-SMICounter32 Unsigned32
Type Constraints:
range: 0..4294967295
.1.3.6.1.2.1.112.1.2.1.14
rohcContextAllPacketsRatio
This object indicates the compression ratio so far over all
packets passing this context. The compression is computed
over all bytes of the IP packets including the IP header
but excluding all lower layer headers.
RohcCompressionRatio
Textual Convention: RohcCompressionRatio Unsigned32
.1.3.6.1.2.1.112.1.2.1.15
rohcContextAllHeadersRatio
This object indicates the compression ratio so far over all
packet headers passing this context. The compression is
computed over all bytes of all headers that are subject to
compression for the used profile.
RohcCompressionRatio
Textual Convention: RohcCompressionRatio Unsigned32
.1.3.6.1.2.1.112.1.2.1.16
rohcContextAllPacketsMeanSize
This object indicates the mean compressed packet size
of all packets passing this context. The packet size
includes the IP header and payload but excludes all lower
layer headers. The mean value is given in byte round…
SNMPv2-SMIUnsigned32
Textual Convention: SNMPv2-SMIUnsigned32 Unsigned32
Type Constraints:
range: 0..4294967295
.1.3.6.1.2.1.112.1.2.1.17
rohcContextAllHeadersMeanSize
This object indicates the mean compressed packet header size
of all packets passing this context. The packet header size
is the sum of the size of all headers of a packet that are
subject to compression for the used pr…
SNMPv2-SMIUnsigned32
Textual Convention: SNMPv2-SMIUnsigned32 Unsigned32
Type Constraints:
range: 0..4294967295
.1.3.6.1.2.1.112.1.2.1.18
rohcContextLastPacketsRatio
This object indicates the compression ratio
concerning the last 16 packets passing this context
or concerning all packets passing this context
if they are less than 16, so far. The compression is
computed over all byte…
RohcCompressionRatio
Textual Convention: RohcCompressionRatio Unsigned32
.1.3.6.1.2.1.112.1.2.1.19
rohcContextLastHeadersRatio
This object indicates the compression ratio concerning the
headers of the last 16 packets passing this context or
concerning the headers of all packets passing this context
if they are less than 16, so far. The compres…
RohcCompressionRatio
Textual Convention: RohcCompressionRatio Unsigned32
.1.3.6.1.2.1.112.1.2.1.20
rohcContextLastPacketsMeanSize
This object indicates the mean compressed packet size
concerning the last 16 packets passing this context or
concerning all packets passing this context if they are
less than 16, so far. The packet size includes the IP…
SNMPv2-SMIUnsigned32
Textual Convention: SNMPv2-SMIUnsigned32 Unsigned32
Type Constraints:
range: 0..4294967295
.1.3.6.1.2.1.112.1.2.1.21
rohcContextLastHeadersMeanSize
This object indicates the mean compressed packet header size
concerning the last 16 packets passing this context or
concerning all packets passing this context if they are
less than 16, so far. The packet header size i…
SNMPv2-SMIUnsigned32
Textual Convention: SNMPv2-SMIUnsigned32 Unsigned32
Type Constraints:
range: 0..4294967295
.1.3.6.1.2.1.112.1.2.1.22