Network Working Group F. Baker
Request for Comments: 2213 Cisco Systems
Category: Standards Track J. Krawczyk
ArrowPoint Communications
A. Sastry
Integrated Services Management Information Base using SMIv2
This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited.
This memo defines a portion of the Management Information Base (MIB) for use with network management protocols in TCP/IP-based internets. In particular, it defines objects for managing the the interface attributes defined in the Integrated Services Model. Comments should be made to the Integrated Services Working Group, int-serv@isi.edu.
1 The SNMPv2 Network Management Framework
1.1 Object Definitions
2 Overview
2.1 Textual Conventions
2.2 Structure of MIB
3 Definitions
3.2 Interface Attributes Database
3.3 Integrated Services Interface Flows Database
4 Security Considerations
5 Authors' Addresses
6 Acknowledgements
7 References
The SNMPv2 Network Management Framework consists of four major components. They are:
The Framework permits new objects to be defined for the purpose of experimentation and evaluation.
Managed objects are accessed via a virtual information store, termed the Management Information Base or MIB. Objects in the MIB are defined using the subset of Abstract Syntax Notation One (ASN.1) defined in the SMI. In particular, each object type is named by an OBJECT IDENTIFIER, an administratively assigned name. The object type together with an object instance serves to uniquely identify a specific instantiation of the object. For human convenience, we often use a textual string, termed the descriptor, to refer to the object type.
Several new data types are introduced as a textual convention in this MIB document. These textual conventions enhance the readability of the specification and can ease comparison with other specifications if appropriate. It should be noted that the introduction of the these textual conventions has no effect on either the syntax nor the semantics of any managed objects. The use of these is merely an
artifact of the explanatory method used. Objects defined in terms of one of these methods are always encoded by means of the rules that define the primitive type. Hence, no changes to the SMI or the SNMP are necessary to accommodate these textual conventions which are adopted merely for the convenience of readers and writers in pursuit of the elusive goal of clear, concise, and unambiguous MIB documents.
The MIB is composed of the following sections:
Integrated Services
Interface Attributes Table
Interface Flow Table
IMPORTS
MODULE-IDENTITY, OBJECT-TYPE, Counter32,
Gauge32, Integer32, mib-2 FROM SNMPv2-SMI
TimeInterval, TEXTUAL-CONVENTION, RowStatus,
TruthValue FROM SNMPv2-TC
MODULE-COMPLIANCE, OBJECT-GROUP FROM SNMPv2-CONF
ifIndex, InterfaceIndex FROM IF-MIB;
" Fred Baker
Postal: Cisco Systems
519 Lado Drive
Santa Barbara, California 93111
Tel: +1 805 681 0115
E-Mail: fred@cisco.com
John Krawczyk
Postal: ArrowPoint Communications
235 Littleton Road
Westford, Massachusetts 01886
Tel: +1 508 692 5875
E-Mail: jjk@tiac.net"
DESCRIPTION
"The MIB module to describe the Integrated Services
Protocol"
::= { mib-2 52 }
SessionNumber ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"The Session Number convention is used for
numbers identifying sessions or saved PATH or
RESV information. It is a number in the range
returned by a TestAndIncr variable, having no
protocol meaning whatsoever but serving instead
as simple identifier.
The alternative was a very complex instance or
instance object that became unwieldy."
SYNTAX INTEGER (0..2147483647)
Protocol ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"The value of the IP Protocol field of an IP
Datagram Header. This identifies the protocol
layer above IP. For example, the value 6 is
used for TCP and the value 17 is used for UDP.
The values of this field are defined in the As-
signed Numbers RFC."
SYNTAX INTEGER (1..255)
SessionType ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"The value of the C-Type field of a Session ob-
ject, as defined in the RSVP specification.
This value determines the lengths of octet
strings and use of certain objects such as the
'port' variables. If the C-Type calls for an
IP6 address, one would expect all source, des-
tination, and next/previous hop addresses to be
16 bytes long, and for the ports to be UDP/TCP
port numbers, for example."
SYNTAX INTEGER (1..255)
Port ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"The value of the UDP or TCP Source or Destina-
tion Port field, a virtual destination port or
generalized port identifier used with the IPSEC
Authentication Header or Encapsulating Security
Payload, or other session discriminator. If it
is not used, the value should be of length 0.
This pair, when coupled with the IP Addresses
of the source and destination system and the IP
protocol field, uniquely identifies a data
stream."
SYNTAX OCTET STRING (SIZE(2..4))
MessageSize ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"The size of a message in bytes. This is used
to specify the minimum and maximum size of a
message along an integrated services route."
SYNTAX INTEGER (0..'7FFFFFFF'h)
BitRate ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"The rate, in bits/second, that data may move
in the context. Applicable contexts minimally
include the speed of an interface or virtual
circuit, the data rate of a (potentially aggre-
gated) data flow, or the data rate to be allo-
cated for use by a flow."
SYNTAX INTEGER (0..'7FFFFFFF'h)
BurstSize ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"The number of octets of IP Data, including IP
Headers, that a stream may send without concern
for policing."
SYNTAX INTEGER (0..'7FFFFFFF'h)
QosService ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"The class of service in use by a flow."
SYNTAX INTEGER {
bestEffort (1), -- Best Effort Service
guaranteedDelay (2), -- Guaranteed Delay
controlledLoad (5) -- Controlled Load
}
intSrvIfAttribTable OBJECT-TYPE
SYNTAX SEQUENCE OF IntSrvIfAttribEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The reservable attributes of the system's in-
terfaces."
::= { intSrvObjects 1 }
intSrvIfAttribEntry OBJECT-TYPE
SYNTAX IntSrvIfAttribEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The reservable attributes of a given inter-
face."
INDEX { ifIndex }
::= { intSrvIfAttribTable 1 }
intSrvIfAttribAllocatedBits BitRate,
intSrvIfAttribMaxAllocatedBits BitRate,
intSrvIfAttribAllocatedBuffer BurstSize,
intSrvIfAttribFlows Gauge32,
intSrvIfAttribPropagationDelay Integer32,
intSrvIfAttribStatus RowStatus
}
intSrvIfAttribAllocatedBits OBJECT-TYPE
SYNTAX BitRate
UNITS "Bits per second"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of bits/second currently allocated
to reserved sessions on the interface."
::= { intSrvIfAttribEntry 1 }
intSrvIfAttribMaxAllocatedBits OBJECT-TYPE
SYNTAX BitRate
UNITS "Bits per second"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The maximum number of bits/second that may be
allocated to reserved sessions on the inter-
face."
::= { intSrvIfAttribEntry 2 }
intSrvIfAttribAllocatedBuffer OBJECT-TYPE
SYNTAX BurstSize
UNITS "Bytes"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The amount of buffer space required to hold
the simultaneous burst of all reserved flows on
the interface."
::= { intSrvIfAttribEntry 3 }
intSrvIfAttribFlows OBJECT-TYPE
SYNTAX Gauge32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of reserved flows currently active
on this interface. A flow can be created ei-
ther from a reservation protocol (such as RSVP
or ST-II) or via configuration information."
::= { intSrvIfAttribEntry 4 }
intSrvIfAttribPropagationDelay OBJECT-TYPE
SYNTAX Integer32
UNITS "microseconds"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The amount of propagation delay that this in-
terface introduces in addition to that intro-
diced by bit propagation delays."
DEFVAL { 0 }-- by default, interfaces are presumed to add
-- no extra delays
::= { intSrvIfAttribEntry 5 }
intSrvIfAttribStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"'active' on interfaces that are configured for
RSVP."
::= { intSrvIfAttribEntry 6 }
intSrvFlowTable OBJECT-TYPE
SYNTAX SEQUENCE OF IntSrvFlowEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Information describing the reserved flows us-
ing the system's interfaces."
::= { intSrvObjects 2 }
intSrvFlowEntry OBJECT-TYPE
SYNTAX IntSrvFlowEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Information describing the use of a given in-
terface by a given flow. The counter
intSrvFlowPoliced starts counting at the in-
stallation of the flow."
INDEX { intSrvFlowNumber }
::= { intSrvFlowTable 1 }
IntSrvFlowEntry ::=
SEQUENCE {
intSrvFlowNumber SessionNumber,
intSrvFlowType SessionType,
intSrvFlowOwner INTEGER,
intSrvFlowDestAddr OCTET STRING,
intSrvFlowSenderAddr OCTET STRING,
intSrvFlowDestAddrLength INTEGER,
intSrvFlowSenderAddrLength INTEGER,
intSrvFlowProtocol Protocol,
intSrvFlowDestPort Port,
intSrvFlowPort Port,
intSrvFlowFlowId INTEGER,
intSrvFlowInterface InterfaceIndex,
intSrvFlowIfAddr OCTET STRING,
intSrvFlowRate BitRate,
intSrvFlowBurst BurstSize,
intSrvFlowWeight Integer32,
intSrvFlowQueue Integer32,
intSrvFlowMinTU MessageSize,
intSrvFlowMaxTU MessageSize,
intSrvFlowBestEffort Counter32,
intSrvFlowPoliced Counter32,
intSrvFlowDiscard TruthValue,
intSrvFlowService QosService,
intSrvFlowOrder INTEGER,
intSrvFlowStatus RowStatus
}
intSrvFlowNumber OBJECT-TYPE
SYNTAX SessionNumber
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The number of this flow. This is for SNMP In-
dexing purposes only and has no relation to any
protocol value."
::= { intSrvFlowEntry 1 }
intSrvFlowType OBJECT-TYPE
SYNTAX SessionType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The type of session (IP4, IP6, IP6 with flow
information, etc)."
::= { intSrvFlowEntry 2 }
intSrvFlowOwner OBJECT-TYPE
SYNTAX INTEGER {
other(1),
rsvp(2),
management(3)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The process that installed this flow in the
queue policy database."
::= { intSrvFlowEntry 3 }
intSrvFlowDestAddr OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(4..16))
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The destination address used by all senders in
this session. This object may not be changed
when the value of the RowStatus object is 'ac-
tive'."
::= { intSrvFlowEntry 4 }
intSrvFlowSenderAddr OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(4..16))
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The source address of the sender selected by
this reservation. The value of all zeroes in-
dicates 'all senders'. This object may not be
changed when the value of the RowStatus object
is 'active'."
::= { intSrvFlowEntry 5 }
intSrvFlowDestAddrLength OBJECT-TYPE
SYNTAX INTEGER(0..128)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The length of the destination address in bits.
This is the CIDR Prefix Length, which for IP4
hosts and multicast addresses is 32 bits. This
object may not be changed when the value of the
RowStatus object is 'active'."
::= { intSrvFlowEntry 6 }
intSrvFlowSenderAddrLength OBJECT-TYPE
SYNTAX INTEGER(0..128)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The length of the sender's address in bits.
This is the CIDR Prefix Length, which for IP4
hosts and multicast addresses is 32 bits. This
object may not be changed when the value of the
RowStatus object is 'active'."
::= { intSrvFlowEntry 7 }
intSrvFlowProtocol OBJECT-TYPE
SYNTAX Protocol
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The IP Protocol used by a session. This ob-
ject may not be changed when the value of the
RowStatus object is 'active'."
::= { intSrvFlowEntry 8 }
intSrvFlowDestPort OBJECT-TYPE
SYNTAX Port
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The UDP or TCP port number used as a destina-
tion port for all senders in this session. If
the IP protocol in use, specified by
intSrvResvFwdProtocol, is 50 (ESP) or 51 (AH),
this represents a virtual destination port
number. A value of zero indicates that the IP
protocol in use does not have ports. This ob-
ject may not be changed when the value of the
RowStatus object is 'active'."
::= { intSrvFlowEntry 9 }
intSrvFlowPort OBJECT-TYPE
SYNTAX Port
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The UDP or TCP port number used as a source
port for this sender in this session. If the
IP protocol in use, specified by
intSrvResvFwdProtocol is 50 (ESP) or 51 (AH),
this represents a generalized port identifier
(GPI). A value of zero indicates that the IP
protocol in use does not have ports. This ob-
ject may not be changed when the value of the
RowStatus object is 'active'."
::= { intSrvFlowEntry 10 }
intSrvFlowFlowId OBJECT-TYPE
SYNTAX INTEGER (0..16777215)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The flow ID that this sender is using, if
this is an IPv6 session."
::= { intSrvFlowEntry 11 }
intSrvFlowInterface OBJECT-TYPE
SYNTAX InterfaceIndex
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The ifIndex value of the interface on which
this reservation exists."
::= { intSrvFlowEntry 12 }
intSrvFlowIfAddr OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(4..16))
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The IP Address on the ifEntry on which this
reservation exists. This is present primarily
to support those interfaces which layer multi-
ple IP Addresses on the interface."
::= { intSrvFlowEntry 13 }
intSrvFlowRate OBJECT-TYPE
SYNTAX BitRate
UNITS "bits per second"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The Reserved Rate of the sender's data stream.
If this is a Controlled Load service flow, this
rate is derived from the Tspec rate parameter
(r). If this is a Guaranteed service flow,
this rate is derived from the Rspec clearing
rate parameter (R)."
::= { intSrvFlowEntry 14 }
intSrvFlowBurst OBJECT-TYPE
SYNTAX BurstSize
UNITS "bytes"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The size of the largest burst expected from
the sender at a time.
If this is less than the sender's advertised
burst size, the receiver is asking the network
to provide flow pacing beyond what would be
provided under normal circumstances. Such pac-
ing is at the network's option."
::= { intSrvFlowEntry 15 }
intSrvFlowWeight OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The weight used to prioritize the traffic.
Note that the interpretation of this object is
implementation-specific, as implementations
vary in their use of weighting procedures."
::= { intSrvFlowEntry 16 }
intSrvFlowQueue OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The number of the queue used by this traffic.
Note that the interpretation of this object is
implementation-specific, as implementations
vary in their use of queue identifiers."
::= { intSrvFlowEntry 17 }
intSrvFlowMinTU OBJECT-TYPE
SYNTAX MessageSize
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The minimum message size for this flow. The
policing algorithm will treat smaller messages
as though they are this size."
::= { intSrvFlowEntry 18 }
intSrvFlowMaxTU OBJECT-TYPE
SYNTAX MessageSize
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The maximum datagram size for this flow that
will conform to the traffic specification. This
value cannot exceed the MTU of the interface."
::= { intSrvFlowEntry 19 }
intSrvFlowBestEffort OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of packets that were remanded to
best effort service."
::= { intSrvFlowEntry 20 }
intSrvFlowPoliced OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of packets policed since the incep-
tion of the flow's service."
::= { intSrvFlowEntry 21 }
intSrvFlowDiscard OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"If 'true', the flow is to incur loss when
traffic is policed. If 'false', policed traff-
ic is treated as best effort traffic."
DEFVAL { false } -- traffic is, by default, treated as best
-- effort
::= { intSrvFlowEntry 22 }
intSrvFlowService OBJECT-TYPE
SYNTAX QosService
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The QoS service being applied to this flow."
::= { intSrvFlowEntry 23 }
intSrvFlowOrder OBJECT-TYPE
SYNTAX INTEGER (0..65535)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"In the event of ambiguity, the order in which
the classifier should make its comparisons.
The row with intSrvFlowOrder=0 is tried first,
and comparisons proceed in the order of in-
creasing value. Non-serial implementations of
the classifier should emulate this behavior."
::= { intSrvFlowEntry 24 }
intSrvFlowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"'active' for all active flows. This object
may be used to install static classifier infor-
mation, delete classifier information, or au-
thorize such."
::= { intSrvFlowEntry 25 }
intSrvFlowNewIndex OBJECT-TYPE
SYNTAX TestAndIncr
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object is used to assign values to
intSrvFlowNumber as described in 'Textual Con-
ventions for SNMPv2'. The network manager
reads the object, and then writes the value
back in the SET that creates a new instance of
intSrvFlowEntry. If the SET fails with the
code 'inconsistentValue', then the process must
be repeated; If the SET succeeds, then the ob-
ject is incremented, and the new instance is
created according to the manager's directions."
::= { intSrvGenObjects 1 }
intSrvCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement "
MODULE -- this module
MANDATORY-GROUPS { intSrvIfAttribGroup, intSrvFlowsGroup }
OBJECT intSrvFlowType
MIN-ACCESS read-only
DESCRIPTION
"read-create access is not required. This may be
read-only."
OBJECT intSrvFlowOwner
MIN-ACCESS read-only
DESCRIPTION
"read-create access is not required. This may be
read-only."
OBJECT intSrvFlowDestAddr
MIN-ACCESS read-only
DESCRIPTION
"read-create access is not required. This may be
read-only."
OBJECT intSrvFlowSenderAddr
MIN-ACCESS read-only
DESCRIPTION
"read-create access is not required. This may be
read-only."
OBJECT intSrvFlowDestAddrLength
MIN-ACCESS read-only
DESCRIPTION
"read-create access is not required. This may be
read-only."
OBJECT intSrvFlowSenderAddrLength
MIN-ACCESS read-only
DESCRIPTION
"read-create access is not required. This may be
read-only."
OBJECT intSrvFlowProtocol
MIN-ACCESS read-only
DESCRIPTION
"read-create access is not required. This may be
read-only."
OBJECT intSrvFlowDestPort
MIN-ACCESS read-only
DESCRIPTION
"read-create access is not required. This may be
read-only."
OBJECT intSrvFlowPort
MIN-ACCESS read-only
DESCRIPTION
"read-create access is not required. This may be
read-only."
OBJECT intSrvFlowFlowId
MIN-ACCESS not-accessible
DESCRIPTION
"This object is needed only in a system that imple-
ments IPv6."
OBJECT intSrvFlowInterface
MIN-ACCESS read-only
DESCRIPTION
"read-create access is not required. This may be
read-only."
OBJECT intSrvFlowRate
MIN-ACCESS read-only
DESCRIPTION
"read-create access is not required. This may be
read-only."
OBJECT intSrvFlowBurst
MIN-ACCESS read-only
DESCRIPTION
"read-create access is not required. This may be
read-only."
OBJECT intSrvFlowWeight
MIN-ACCESS read-only
DESCRIPTION
"read-create access is not required. This may be
read-only."
OBJECT intSrvFlowQueue
MIN-ACCESS read-only
DESCRIPTION
"read-create access is not required. This may be
read-only."
OBJECT intSrvFlowMinTU
MIN-ACCESS read-only
DESCRIPTION
"read-create access is not required. This may be
read-only."
OBJECT intSrvFlowMaxTU
MIN-ACCESS read-only
DESCRIPTION
"read-create access is not required. This may be
read-only."
OBJECT intSrvFlowStatus
MIN-ACCESS read-only
DESCRIPTION
"read-create access is not required. This may be
read-only."
::= { intSrvCompliances 1 }
intSrvIfAttribGroup OBJECT-GROUP
OBJECTS {
intSrvIfAttribAllocatedBits, intSrvIfAttribMaxAllocatedBits,
intSrvIfAttribAllocatedBuffer, intSrvIfAttribFlows,
intSrvIfAttribPropagationDelay, intSrvIfAttribStatus
}
STATUS current
DESCRIPTION
"These objects are required for Systems sup-
porting the Integrated Services Architecture."
::= { intSrvGroups 1 }
intSrvFlowsGroup OBJECT-GROUP
OBJECTS {
intSrvFlowType, intSrvFlowOwner, intSrvFlowDestAddr,
intSrvFlowSenderAddr, intSrvFlowDestAddrLength,
intSrvFlowSenderAddrLength, intSrvFlowProtocol,
intSrvFlowDestPort, intSrvFlowPort, intSrvFlowInterface,
intSrvFlowBestEffort, intSrvFlowRate, intSrvFlowBurst,
intSrvFlowWeight, intSrvFlowQueue, intSrvFlowMinTU,
intSrvFlowDiscard, intSrvFlowPoliced, intSrvFlowService,
intSrvFlowIfAddr, intSrvFlowOrder, intSrvFlowStatus
}
STATUS current
DESCRIPTION
"These objects are required for Systems sup-
porting the Integrated Services Architecture."
::= { intSrvGroups 2 }
The use of an SNMP SET results in an RSVP or Integrated Services reservation under rules that are different compared to if the reservation was negotiated using RSVP. However, no other security considerations exist other than those imposed by SNMP itself.
Fred Baker
Postal: Cisco Systems
519 Lado Drive
Santa Barbara, California 93111
Phone: +1 805 681 0115
EMail: fred@cisco.com
John Krawczyk
Postal: ArrowPoint Communications
235 Littleton Road
Westford, Massachusetts 01886
Phone: +1 508 692 5875
EMail: jjk@tiac.net
Arun Sastry
Postal: Cisco Systems
210 W. Tasman Drive
San Jose, California 95314
Phone: +1 408 526 7685
EMail: arun@cisco.com
This document was produced by the Integrated Services Working Group.
The authors would like to thank the following people for providing feedback on this document:
Lou Berger, Fore Systems
Bob Braden, ISI
Viswanatha Rao, Compaq
John Wroclawski, MIT
[1] Rose, M., Editor, "Management Information Base for Network Management of TCP/IP-based internets", STD 17, RFC 1213, May 1990.
[2] Information processing systems - Open Systems
Interconnection - Specification of Abstract Syntax
Notation One (ASN.1), International Organization for
Standardization. International Standard 8824, (December,
1987).
[3] Information processing systems - Open Systems
Interconnection - Specification of Basic Encoding Rules
for Abstract Notation One (ASN.1), International
Organization for Standardization. International Standard
8825, (December, 1987).