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SFLOW-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY, OBJECT-TYPE, Integer32, enterprises
FROM SNMPv2-SMI
SnmpAdminString
FROM SNMP-FRAMEWORK-MIB
OwnerString
FROM RMON-MIB
InetAddressType, InetAddress
FROM INET-ADDRESS-MIB
MODULE-COMPLIANCE, OBJECT-GROUP
FROM SNMPv2-CONF;
sFlowMIB MODULE-IDENTITY
LAST-UPDATED "200105150000Z" -- May 15, 2001
ORGANIZATION "InMon Corp."
CONTACT-INFO
"Peter Phaal
InMon Corp.
http://www.inmon.com/
Tel: +1-415-661-6343
Email: peter_phaal@inmon.com"
DESCRIPTION
"The MIB module for managing the generation and transportation
of sFlow data records."
--
-- Revision History
--
REVISION "200105150000Z" -- May 15, 2001
DESCRIPTION
"Version 1.2
Brings MIB into SMI v2 compliance."
REVISION "200105010000Z" -- May 1, 2001
DESCRIPTION
"Version 1.1
Adds sFlowDatagramVersion."
::= { enterprises 4300 1 }
sFlowAgent OBJECT IDENTIFIER ::= { sFlowMIB 1 }
sFlowVersion OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Uniquely identifies the version and implementation of this MIB.
The version string must have the following structure:
<MIB Version>;<Organization>;<Software Revision>
where:
<MIB Version> must be '1.2', the version of this MIB.
<Organization> the name of the organization responsible
for the agent implementation.
<Revision> the specific software build of this agent.
As an example, the string '1.2;InMon Corp.;2.1.1' indicates
that this agent implements version '1.2' of the SFLOW MIB, that
it was developed by 'InMon Corp.' and that the software build
is '2.1.1'.
The MIB Version will change with each revision of the SFLOW
MIB.
Management entities must check the MIB Version and not attempt
to manage agents with MIB Versions greater than that for which
they were designed.
Note: The sFlow Datagram Format has an independent version
number which may change independently from <MIB Version>.
<MIB Version> applies to the structure and semantics of
the SFLOW MIB only."
DEFVAL { "1.2;;" }
::= { sFlowAgent 1 }
sFlowAgentAddressType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The address type of the address associated with this agent.
Only ipv4 and ipv6 types are supported."
::= { sFlowAgent 2 }
sFlowAgentAddress OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The IP address associated with this agent. In the case of a
multi-homed agent, this should be the loopback address of the
agent. The sFlowAgent address must provide SNMP connectivity
to the agent. The address should be an invariant that does not
change as interfaces are reconfigured, enabled, disabled,
added or removed. A manager should be able to use the
sFlowAgentAddress as a unique key that will identify this
agent over extended periods of time so that a history can
be maintained."
::= { sFlowAgent 3 }
sFlowTable OBJECT-TYPE
SYNTAX SEQUENCE OF SFlowEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A table of the sFlow samplers within a device."
::= { sFlowAgent 4 }
sFlowEntry OBJECT-TYPE
SYNTAX SFlowEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Attributes of an sFlow sampler."
INDEX { sFlowDataSource }
::= { sFlowTable 1 }
SFlowEntry ::= SEQUENCE {
sFlowDataSource OBJECT IDENTIFIER,
sFlowOwner OwnerString,
sFlowTimeout Integer32,
sFlowPacketSamplingRate Integer32,
sFlowCounterSamplingInterval Integer32,
sFlowMaximumHeaderSize Integer32,
sFlowMaximumDatagramSize Integer32,
sFlowCollectorAddressType InetAddressType,
sFlowCollectorAddress InetAddress,
sFlowCollectorPort Integer32,
sFlowDatagramVersion Integer32
}
sFlowDataSource OBJECT-TYPE
SYNTAX OBJECT IDENTIFIER
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Identifies the source of the data for the sFlow sampler.
The following data source types are currently defined:
- ifIndex.<I>
DataSources of this traditional form are called 'port-based'.
Ideally the sampling entity will perform sampling on all flows
originating from or destined to the specified interface.
However, if the switch architecture only permits input or
output sampling then the sampling agent is permitted to only
sample input flows input or output flows. Each packet must
only be considered once for sampling, irrespective of the
number of ports it will be forwarded to.
Note: Port 0 is used to indicate that all ports on the device
are represented by a single data source.
- sFlowPacketSamplingRate applies to all ports on the
device capable of packet sampling.
- sFlowCounterSamplingInterval applies to all ports.
- smonVlanDataSource.<V>
A dataSource of this form refers to a 'Packet-based VLAN'
and is called a 'VLAN-based' dataSource. <V> is the VLAN
ID as defined by the IEEE 802.1Q standard. The
value is between 1 and 4094 inclusive, and it represents
an 802.1Q VLAN-ID with global scope within a given
bridged domain.
Sampling is performed on all packets received that are part
of the specified VLAN (no matter which port they arrived on).
Each packet will only be considered once for sampling,
irrespective of the number of ports it will be forwarded to.
- entPhysicalEntry.<N>
A dataSource of this form refers to a physical entity within
the agent (e.g., entPhysicalClass = backplane(4)) and is called
an 'entity-based' dataSource.
Sampling is performed on all packets entering the resource (e.g.
If the backplane is being sampled, all packets transmitted onto
the backplane will be considered as single candidates for
sampling irrespective of the number of ports they ultimately
reach).
Note: Since each DataSource operates independently, a packet
that crosses multiple DataSources may generate multiple
flow records."
::= { sFlowEntry 1 }
sFlowOwner OBJECT-TYPE
SYNTAX OwnerString
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The entity making use of this sFlow sampler. The empty string
indicates that the sFlow sampler is currently unclaimed.
An entity wishing to claim an sFlow sampler must make sure
that the sampler is unclaimed before trying to claim it.
The sampler is claimed by setting the owner string to identify
the entity claiming the sampler. The sampler must be claimed
before any changes can be made to other sampler objects.
In order to avoid a race condition, the entity taking control
of the sampler must set both the owner and a value for
sFlowTimeout in the same SNMP set request.
When a management entity is finished using the sampler,
it should set its value back to unclaimed. The agent
must restore all other entities this row to their
default values when the owner is set to unclaimed.
This mechanism provides no enforcement and relies on the
cooperation of management entities in order to ensure that
competition for a sampler is fairly resolved."
DEFVAL { "" }
::= { sFlowEntry 2 }
sFlowTimeout OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The time (in seconds) remaining before the sampler is released
and stops sampling. When set, the owner establishes control
for the specified period. When read, the remaining time in the
interval is returned.
A management entity wanting to maintain control of the sampler
is responsible for setting a new value before the old one
expires.
When the interval expires, the agent is responsible for
restoring all other entities in this row to their default
values."
DEFVAL { 0 }
::= { sFlowEntry 3 }
sFlowPacketSamplingRate OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The statistical sampling rate for packet sampling from this
source.
Set to N to sample 1/Nth of the packets in the monitored flows.
An agent should choose its own algorithm introduce variance
into the sampling so that exactly every Nth packet is not
counted. A sampling rate of 1 counts all packets. A sampling
rate of 0 disables sampling.
The agent is permitted to have minimum and maximum allowable
values for the sampling rate. A minimum rate lets the agent
designer set an upper bound on the overhead associated with
sampling, and a maximum rate may be the result of hardware
restrictions (such as counter size). In addition not all values
between the maximum and minimum may be realizable as the
sampling rate (again because of implementation considerations).
When the sampling rate is set the agent is free to adjust the
value so that it lies between the maximum and minimum values
and has the closest achievable value.
When read, the agent must return the actual sampling rate it
will be using (after the adjustments previously described). The
sampling algorithm must converge so that over time the number
of packets sampled approaches 1/Nth of the total number of
packets in the monitored flows."
DEFVAL { 0 }
::= { sFlowEntry 4 }
sFlowCounterSamplingInterval OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The maximum number of seconds between successive samples of the
counters associated with this data source. A sampling interval
of 0 disables counter sampling."
DEFVAL { 0 }
::= { sFlowEntry 5 }
sFlowMaximumHeaderSize OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The maximum number of bytes that should be copied from a
sampled packet. The agent may have an internal maximum and
minimum permissible sizes. If an attempt is made to set this
value outside the permissible range then the agent should
adjust the value to the closest permissible value."
DEFVAL { 128 }
::= { sFlowEntry 6 }
sFlowMaximumDatagramSize OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The maximum number of data bytes that can be sent in a single
sample datagram. The manager should set this value to avoid
fragmentation of the sFlow datagrams."
DEFVAL { 1400 }
::= { sFlowEntry 7 }
sFlowCollectorAddressType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The type of sFlowCollectorAddress."
DEFVAL { ipv4 }
::= { sFlowEntry 8 }
sFlowCollectorAddress OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The IP address of the sFlow collector.
If set to 0.0.0.0 all sampling is disabled."
DEFVAL { "0.0.0.0" }
::= { sFlowEntry 9 }
sFlowCollectorPort OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The destination port for sFlow datagrams."
DEFVAL { 6343 }
::= { sFlowEntry 10 }
sFlowDatagramVersion OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The version of sFlow datagrams that should be sent.
When set to a value not support by the agent, the agent should
adjust the value to the highest supported value less than the
requested value, or return an error if no such values exist."
DEFVAL { 4 }
::= { sFlowEntry 11 }
--
-- Compliance Statements
--
sFlowMIBConformance OBJECT IDENTIFIER ::= { sFlowMIB 2 }
sFlowMIBGroups OBJECT IDENTIFIER ::= { sFlowMIBConformance 1 }
sFlowMIBCompliances OBJECT IDENTIFIER ::= { sFlowMIBConformance 2 }
sFlowCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"Compliance statements for the sFlow Agent."
MODULE -- this module
MANDATORY-GROUPS { sFlowAgentGroup }
OBJECT sFlowAgentAddressType
SYNTAX InetAddressType { ipv4(1) }
DESCRIPTION
"Agents need only support ipv4."
OBJECT sFlowCollectorAddressType
SYNTAX InetAddressType { ipv4(1) }
DESCRIPTION
"Agents need only support ipv4."
::= { sFlowMIBCompliances 1 }
sFlowAgentGroup OBJECT-GROUP
OBJECTS { sFlowVersion, sFlowAgentAddressType, sFlowAgentAddress,
sFlowDataSource, sFlowOwner, sFlowTimeout,
sFlowPacketSamplingRate, sFlowCounterSamplingInterval,
sFlowMaximumHeaderSize, sFlowMaximumDatagramSize,
sFlowCollectorAddressType, sFlowCollectorAddress,
sFlowCollectorPort, sFlowDatagramVersion }
STATUS current
DESCRIPTION
"A collection of objects for managing the generation and
transportation of sFlow data records."
::= { sFlowMIBGroups 1 }
END