Definitions of Managed Objects for Common Open Policy Service (COPS) Protocol Clients
RFC 2940
Network Working Group A. Smith
Request for Comments: 2940 Consultant
Category: Standards Track D. Partain
Ericsson
J. Seligson
Nortel Networks
October 2000
Definitions of Managed Objects for Common Open Policy Service (COPS)
Protocol Clients
Status of this Memo
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.
Copyright Notice
Copyright (C) The Internet Society (2000). All Rights Reserved.
Abstract
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 a client of the Common
Open Policy Service (COPS) protocol.
This memo includes a MIB module in a manner that is compliant to the
SMIv2 [V2SMI].
Smith Standards Track [Page 1]
RFC 2940 COPS Client MIB October 2000
1. The SNMP Management Framework
The SNMP Management Framework presently consists of five major
components:
o An overall architecture, described in an Architecture for
Describing SNMP Management Frameworks [ARCH].
o Mechanisms for describing and naming objects and events for the
purpose of management. The first version of this Structure of
Management Information (SMI) is called SMIv1 and described in
STD 16, RFC 1155 [V1SMI], STD 16, RFC 1212 [V1CONCISE] and RFC
1215 [V1TRAPS]. The second version, called SMIv2, is described
in STD 58, RFC 2578 [V2SMI], STD 58, RFC 2579 [V2TC] and STD
58, RFC 2580 [V2CONFORM].
o Message protocols for transferring management information. The
first version of the SNMP message protocol is called SNMPv1 and
described in STD 15, RFC 1157 [V1PROTO]. A second version of
the SNMP message protocol, which is not an Internet standards
track protocol, is called SNMPv2c and described in RFC 1901
[V2COMMUNITY] and RFC 1906 [V2TRANS]. The third version of the
message protocol is called SNMPv3 and described in RFC1906
[V2TRANS], Message Processing and Dispatching [V3MPC] and
User-based Security Model [V3USM].
o Protocol operations for accessing management information. The
first set of protocol operations and associated PDU formats is
described in STD 15, RFC 1157 [V1PROTO]. A second set of
protocol operations and associated PDU formats is described in
RFC 1905 [V2PROTO].
o A set of fundamental applications described in SNMPv3
Applications [V3APPS] and the view-based access control
mechanism described in View-based Access Control Model
[V3VACM].
A more detailed introduction to the current SNMP Management Framework
can be found in RFC 2570 [V3INTRO].
Managed objects are accessed via a virtual information store, termed
the Management Information Base or MIB. Objects in the MIB are
defined using the mechanisms defined in the SMI.
This memo specifies a MIB module that is compliant to the SMIv2. A
MIB conforming to the SMIv1 can be produced through the appropriate
translations. The resulting translated MIB must be semantically
equivalent, except where objects or events are omitted because no
Smith Standards Track [Page 2]
RFC 2940 COPS Client MIB October 2000
translation is possible (use of Counter64). Some machine readable
information in SMIv2 will be converted into textual descriptions in
SMIv1 during the translation process. However, this loss of machine
readable information is not considered to change the semantics of the
MIB.
2. Overview
The COPS protocol [COPS] is a client-server protocol intended for the
communication of policy requests and decisions between a Policy
Enforcement Point (PEP) and a Policy Decision Point (PDP). The PEP
acts as a COPS client in this scenario. The model for policy out-
sourcing, of which the COPS protocol provides one part, is described
in [FRAMEWORK].
2.1. Scope
This MIB is intended to provide management of the important features
of a COPS protocol client module. It does not provide management for
a COPS server - this is outside the scope of the current memo. It
provides for monitoring of status and protocol statistics, as well as
for configuration of the client, in particular for telling it where
to locate its servers. Other mechanisms for achieving this function
without SNMP configuration might include use of the Service Location
Protocol [SRVLOC] although this is outside the scope of this memo and
are not specified by the COPS protocol itself.
This MIB also does not provide management of specific COPS client-
types e.g., for use with the RSVP protocol [RSVP][COPSRSVP].
3. Structure of COPS Client MIB
Objects in this MIB are arranged into groups. Each group is
organized as a set of related objects. The overall structure is
described below.
3.1. copsClientCapabilitiesGroup
This group contains objects that represent COPS protocol capabilities
implemented by this COPS client.
3.2. copsClientStatusGroup
This group contains objects that indicate the current status of
connection(s) to COPS servers, including per-server protocol
statistics. It maintains last-known statistics for all of the
servers with which the client has ever been connected since agent
restart.
Smith Standards Track [Page 3]
RFC 2940 COPS Client MIB October 2000
3.3. copsConfigGroup
This group contains objects that allow for configuration of COPS
server addresses and the order to which connections should be
attempted. It contains a table of per-server objects as well as
scalars for configuration of the retry algorithm to be used by a
client to obtain a connection to an appropriate server.
3.4. Textual Conventions
The datatypes CopsClientState, CopsServerEntryType, CopsErrorCode,
CopsTcpPort and CopsAuthType are used as textual conventions in this
document. These textual conventions have NO effect on either the
syntax nor the semantics of any managed object. Objects defined
using these conventions are always encoded by means of the rules that
define their 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.
3.5. Relationship to Other MIBs
3.5.1. Relationship to the 'system' group
This MIB contains definitions for a single COPS protocol client
represented by a single SNMP agent and instance of the MIB-2 system
group [MIB2]. It does not address the case of multiple co-located
COPS protocol clients.
4. Definitions for COPS Client MIB
COPS-CLIENT-MIB DEFINITIONS ::= BEGIN
-- -------------------------------------------------------------
-- -------------------------------------------------------------
IMPORTS
MODULE-IDENTITY, OBJECT-TYPE, Counter32, Integer32,
Unsigned32, mib-2
FROM SNMPv2-SMI
TimeStamp, TimeInterval, RowStatus, TEXTUAL-CONVENTION
FROM SNMPv2-TC
MODULE-COMPLIANCE, OBJECT-GROUP
FROM SNMPv2-CONF
InetAddressType, InetAddress
FROM INET-ADDRESS-MIB;
-- REFERENCE
Smith Standards Track [Page 4]
RFC 2940 COPS Client MIB October 2000
-- "The COPS (Common Open Policy Service) Protocol RFC 2748
copsClientMIB MODULE-IDENTITY
LAST-UPDATED "200009280000Z"
ORGANIZATION "IETF RSVP Admission Policy Working Group"
CONTACT-INFO
" Andrew Smith (WG co-chair)
Phone: +1 408 579 2821
Email: ah_smith@pacbell.net
Mark Stevens (WG co-chair)
Phone: +1 978 287 9102
Email: markstevens@lucent.com
Editor: Andrew Smith
Phone: +1 408 579 2821
Email: ah_smith@pacbell.net
Editor: David Partain
Phone: +46 13 28 41 44
Email: David.Partain@ericsson.com
Editor: John Seligson
Phone: +1 408 495 2992
Email: jseligso@nortelnetworks.com"
DESCRIPTION
"The COPS Client MIB module"
REVISION "200009280000Z"
DESCRIPTION "This version published as RFC 2940"
::= { mib-2 89 }
copsClientMIBObjects OBJECT IDENTIFIER ::= { copsClientMIB 1 }
-- -------------------------------------------------------------
-- Textual Conventions
-- -------------------------------------------------------------
CopsClientState ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"A value indicating the state of a COPS client."
SYNTAX INTEGER {
copsClientInvalid(1), -- default state.
copsClientTcpconnected(2), -- TCP connection up but COPS
-- not yet open.
Smith Standards Track [Page 5]
RFC 2940 COPS Client MIB October 2000
copsClientAuthenticating(3), -- TCP connection up but still
-- authenticating.
copsClientSecAccepted(4), -- connection authenticated.
copsClientAccepted(5), -- COPS server accepted client.
copsClientTimingout(6) -- Keepalive timer has expired,
-- client is in process of
-- tearing down connection.
}
CopsServerEntryType ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"A value indicating how a COPS server entry came into existence."
SYNTAX INTEGER {
copsServerStatic(1), -- configured by manager
copsServerRedirect(2) -- notified by COPS server
}
CopsErrorCode ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"A value describing a COPS protocol error. Codes are identical
to those used by the COPS protocol itself."
SYNTAX INTEGER {
errorOther(0), -- none of the below
errorBadHandle(1),
errorInvalidHandleReference(2),
errorBadMessageFormat(3),
errorUnableToProcess(4),
errorMandatoryClientSiMissing(5),
errorUnsupportedClientType(6),
errorMandatoryCopsObjectMissing(7),
errorClientFailure(8),
errorCommunicationFailure(9),
errorUnspecified(10), -- client-type specific subcode
errorShuttingDown(11),
errorRedirectToPreferredServer(12),
errorUnknownCopsObject(13),
errorAuthenticationFailure(14),
errorAuthenticationMissing(15)
}
-- REFERENCE
-- "RFC 2748 section 2.2.8"
CopsTcpPort ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"A value indicating a TCP protocol port number."
Smith Standards Track [Page 6]
RFC 2940 COPS Client MIB October 2000
SYNTAX INTEGER (0..65535)
CopsAuthType ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"A value indicating a type of security authentication mechanism."
SYNTAX INTEGER {
authNone(0),
authOther(1),
authIpSecAh(2),
authIpSecEsp(3),
authTls(4),
authCopsIntegrity(5)
}
-- -------------------------------------------------------------
copsClientCapabilitiesGroup OBJECT IDENTIFIER
::= { copsClientMIBObjects 1 }
-- -------------------------------------------------------------
--
-- Capabilities of the COPS client to connect to a COPS server:
--
copsClientCapabilities OBJECT-TYPE
SYNTAX BITS {
copsClientVersion1(0), -- supports version1 of COPS protocol
copsClientAuthIpSecAh(1) , -- supports IP-SEC Authentication
copsClientAuthIpSecEsp(2), -- supports IP-SEC Encryption
copsClientAuthTls(3), -- supports Transport-Layer Security
copsClientAuthInteg(4) -- supports COPS Integrity
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A list of the optional capabilities that this COPS client
supports."
::= { copsClientCapabilitiesGroup 1 }
-- -------------------------------------------------------------
copsClientStatusGroup OBJECT IDENTIFIER ::= { copsClientMIBObjects 2 }
-- -------------------------------------------------------------
--
-- Current status of COPS server connections, all read-only.
--
Smith Standards Track [Page 7]
RFC 2940 COPS Client MIB October 2000
copsClientServerCurrentTable OBJECT-TYPE
SYNTAX SEQUENCE OF CopsClientServerCurrentEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A table of information regarding COPS servers as seen from the
point of view of a COPS client. This table contains entries
for both statically-configured and dynamically-learned servers
(from a PDP Redirect operation). One entry exists in this table
for each COPS Client-Type served by the COPS server. In addition,
an entry will exist with copsClientServerClientType 0 (zero)
representing information about the underlying connection itself:
this is consistent with the COPS specification which reserves
this value for this purpose."
::= { copsClientStatusGroup 1 }
copsClientServerCurrentEntry OBJECT-TYPE
SYNTAX CopsClientServerCurrentEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A set of information regarding a single COPS server serving
a single COPS Client-Type from the point of view of a COPS
client."
INDEX { copsClientServerAddressType, copsClientServerAddress,
copsClientServerClientType }
::= { copsClientServerCurrentTable 1 }
CopsClientServerCurrentEntry ::=
SEQUENCE {
copsClientServerAddressType InetAddressType,
copsClientServerAddress InetAddress,
copsClientServerClientType INTEGER,
copsClientServerTcpPort CopsTcpPort,
copsClientServerType CopsServerEntryType,
copsClientServerAuthType CopsAuthType,
copsClientServerLastConnAttempt TimeStamp,
copsClientState CopsClientState,
copsClientServerKeepaliveTime TimeInterval,
copsClientServerAccountingTime TimeInterval,
copsClientInPkts Counter32,
copsClientOutPkts Counter32,
copsClientInErrs Counter32,
copsClientLastError CopsErrorCode,
copsClientTcpConnectAttempts Counter32,
copsClientTcpConnectFailures Counter32,
copsClientOpenAttempts Counter32,
Smith Standards Track [Page 8]
RFC 2940 COPS Client MIB October 2000
copsClientOpenFailures Counter32,
copsClientErrUnsupportClienttype Counter32,
copsClientErrUnsupportedVersion Counter32,
copsClientErrLengthMismatch Counter32,
copsClientErrUnknownOpcode Counter32,
copsClientErrUnknownCnum Counter32,
copsClientErrBadCtype Counter32,
copsClientErrBadSends Counter32,
copsClientErrWrongObjects Counter32,
copsClientErrWrongOpcode Counter32,
copsClientKaTimedoutClients Counter32,
copsClientErrAuthFailures Counter32,
copsClientErrAuthMissing Counter32
}
copsClientServerAddressType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The type of address in copsClientServerAddress."
::= { copsClientServerCurrentEntry 1 }
copsClientServerAddress OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The IPv4, IPv6 or DNS address of a COPS Server. Note that,
since this is an index to the table, the DNS name must be
short enough to fit into the maximum length of indices allowed
by the management protocol in use."
REFERENCE
"RFC 2748 section 2.3"
::= { copsClientServerCurrentEntry 2 }
copsClientServerClientType OBJECT-TYPE
SYNTAX INTEGER (0..65535)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The COPS protocol Client-Type for which this entry
applies. Multiple Client-Types can be served by a single
COPS server. The value 0 (zero) indicates that this
entry contains information about the underlying connection
itself."
REFERENCE
"RFC 2748 section 6, IANA"
Smith Standards Track [Page 9]
RFC 2940 COPS Client MIB October 2000
::= { copsClientServerCurrentEntry 3 }
copsClientServerTcpPort OBJECT-TYPE
SYNTAX CopsTcpPort
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The TCP port number on the COPS server to which the
client should connect/is connected."
::= { copsClientServerCurrentEntry 4 }
copsClientServerType OBJECT-TYPE
SYNTAX CopsServerEntryType
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Indicator of the source of this COPS server information.
COPS servers may be configured by network management
into copsClientServerConfigTable and appear in this entry
with type copsServerStatic(1). Alternatively, the may be
notified from another COPS server by means of the COPS
PDP-Redirect mechanism and appear as copsServerRedirect(2)."
::= { copsClientServerCurrentEntry 5 }
copsClientServerAuthType OBJECT-TYPE
SYNTAX CopsAuthType
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Indicator of the current security mode in use between
client and this COPS server."
::= { copsClientServerCurrentEntry 6 }
copsClientServerLastConnAttempt OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Timestamp of the last time that this client attempted to
connect to this COPS server."
::= { copsClientServerCurrentEntry 7 }
copsClientState OBJECT-TYPE
SYNTAX CopsClientState
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The state of the connection and COPS protocol with respect
Smith Standards Track [Page 10]
RFC 2940 COPS Client MIB October 2000
to this COPS server."
::= { copsClientServerCurrentEntry 8 }
copsClientServerKeepaliveTime OBJECT-TYPE
SYNTAX TimeInterval
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of the COPS protocol Keepalive timeout, in
centiseconds, currently in use by this client, as
specified by this COPS server in the Client-Accept operation.
A value of zero indicates no keepalive activity is expected."
REFERENCE
"RFC 2748 section 3.7, 4.4"
::= { copsClientServerCurrentEntry 9 }
copsClientServerAccountingTime OBJECT-TYPE
SYNTAX TimeInterval
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of the COPS protocol Accounting timeout, in
centiseconds, currently in use by this client, as specified
by the COPS server in the Client-Accept operation. A value
of zero indicates no accounting activity is to be performed."
REFERENCE
"RFC 2748 section 3.7"
::= { copsClientServerCurrentEntry 10 }
copsClientInPkts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the total number of COPS messages that this client
has received from this COPS server marked for this Client-Type.
This value is cumulative since agent restart and is not zeroed
on new connections."
::= { copsClientServerCurrentEntry 11 }
copsClientOutPkts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the total number of COPS messages that this client
has sent to this COPS server marked for this Client-Type. This
value is cumulative since agent restart and is not zeroed on new
Smith Standards Track [Page 11]
RFC 2940 COPS Client MIB October 2000
connections."
::= { copsClientServerCurrentEntry 12 }
copsClientInErrs OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the total number of COPS messages that this client
has received from this COPS server marked for this Client-Type
that contained errors in syntax. This value is cumulative since
agent restart and is not zeroed on new connections."
::= { copsClientServerCurrentEntry 13 }
copsClientLastError OBJECT-TYPE
SYNTAX CopsErrorCode
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The code contained in the last COPS protocol Error Object
received by this client from this COPS server marked for this
Client-Type. This value is not zeroed on COPS Client-Open
operations."
REFERENCE
"RFC 2748 section 2.2.8"
::= { copsClientServerCurrentEntry 14 }
copsClientTcpConnectAttempts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the number of times that this COPS client has tried
(successfully or otherwise) to open an TCP connection to a COPS
server. This value is cumulative since agent restart and is not
zeroed on new connections. This value is not incremented for
entries representing a non-zero Client-Type."
::= { copsClientServerCurrentEntry 15 }
copsClientTcpConnectFailures OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the number of times that this COPS client has failed
to open an TCP connection to a COPS server. This value is
cumulative since agent restart and is not zeroed on new
connections. This value is not incremented for
Smith Standards Track [Page 12]
RFC 2940 COPS Client MIB October 2000
entries representing a non-zero Client-Type."
::= { copsClientServerCurrentEntry 16 }
copsClientOpenAttempts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the number of times that this COPS client has tried
to perform a COPS Client-Open to a COPS server for this
Client-Type. This value is cumulative since agent restart and is
not zeroed on new connections."
::= { copsClientServerCurrentEntry 17 }
copsClientOpenFailures OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the number of times that this COPS client has failed
to perform a COPS Client-Open to a COPS server for this
Client-Type. This value is cumulative since agent restart and is
not zeroed on new connections."
::= { copsClientServerCurrentEntry 18 }
copsClientErrUnsupportClienttype OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the total number of COPS messages that this client
has received from COPS servers that referred to Client-Types
that are unsupported by this client. This value is cumulative
since agent restart and is not zeroed on new connections. This
value is not incremented for entries representing a non-zero
Client-Type."
::= { copsClientServerCurrentEntry 19 }
copsClientErrUnsupportedVersion OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the total number of COPS messages that this client
has received from COPS servers marked for this Client-Type that
had a COPS protocol Version number that is unsupported by this
client. This value is cumulative since agent restart and is not
zeroed on new connections."
Smith Standards Track [Page 13]
RFC 2940 COPS Client MIB October 2000
::= { copsClientServerCurrentEntry 20 }
copsClientErrLengthMismatch OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the total number of COPS messages that this client
has received from COPS servers marked for this Client-Type that
had a COPS protocol Message Length that did not match the actual
received message. This value is cumulative since agent restart
and is not zeroed on new connections."
::= { copsClientServerCurrentEntry 21 }
copsClientErrUnknownOpcode OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the total number of COPS messages that this client
has received from COPS servers marked for this Client-Type that
had a COPS protocol Op Code that was unrecognised by this
client. This value is cumulative since agent restart and is not
zeroed on new connections."
::= { copsClientServerCurrentEntry 22 }
copsClientErrUnknownCnum OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the total number of COPS messages that this client
has received from COPS servers marked for this Client-Type that
contained a COPS protocol object C-Num that was unrecognised by
this client. This value is cumulative since agent restart and is
not zeroed on new connections."
::= { copsClientServerCurrentEntry 23 }
copsClientErrBadCtype OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the total number of COPS messages that this client
has received from COPS servers marked for this Client-Type that
contained a COPS protocol object C-Type that was not defined for
the C-Nums known by this client. This value is cumulative since
agent restart and is not zeroed on new connections."
Smith Standards Track [Page 14]
RFC 2940 COPS Client MIB October 2000
::= { copsClientServerCurrentEntry 24 }
copsClientErrBadSends OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the total number of COPS messages that this client
attempted to send to COPS servers marked for this Client-Type
that resulted in a transmit error. This value is cumulative
since agent restart and is not zeroed on new connections."
::= { copsClientServerCurrentEntry 25 }
copsClientErrWrongObjects OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the total number of COPS messages that this client
has received from COPS servers marked for this Client-Type that
did not contain a permitted set of COPS protocol objects. This
value is cumulative since agent restart and is not zeroed on new
connections."
::= { copsClientServerCurrentEntry 26 }
copsClientErrWrongOpcode OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the total number of COPS messages that this client
has received from COPS servers marked for this Client-Type that
had a COPS protocol Op Code that should not have been sent to a
COPS client e.g. Open-Requests. This value is cumulative since
agent restart and is not zeroed on new connections."
::= { copsClientServerCurrentEntry 27 }
copsClientKaTimedoutClients OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the total number of times that this client has
been shut down for this Client-Type by COPS servers that had
detected a COPS protocol Keepalive timeout. This value is
cumulative since agent restart and is not zeroed on new
connections."
::= { copsClientServerCurrentEntry 28 }
Smith Standards Track [Page 15]
RFC 2940 COPS Client MIB October 2000
copsClientErrAuthFailures OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the total number of times that this client has
received a COPS message marked for this Client-Type which
could not be authenticated using the authentication mechanism
used by this client."
::= { copsClientServerCurrentEntry 29 }
copsClientErrAuthMissing OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the total number of times that this client has
received a COPS message marked for this Client-Type which did not
contain authentication information."
::= { copsClientServerCurrentEntry 30 }
-- -------------------------------------------------------------
copsClientConfigGroup OBJECT IDENTIFIER ::= { copsClientMIBObjects 3 }
-- -------------------------------------------------------------
copsClientServerConfigTable OBJECT-TYPE
SYNTAX SEQUENCE OF CopsClientServerConfigEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Table of possible COPS servers to try to connect to in order
of copsClientServerConfigPriority. There may be multiple
entries in this table for the same server and client-type which
specify different security mechanisms: these mechanisms will
be attempted by the client in the priority order given. Note
that a server learned by means of PDPRedirect always takes
priority over any of these configured entries."
::= { copsClientConfigGroup 1 }
copsClientServerConfigEntry OBJECT-TYPE
SYNTAX CopsClientServerConfigEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A set of configuration information regarding a single
Smith Standards Track [Page 16]
RFC 2940 COPS Client MIB October 2000
COPS server from the point of view of a COPS client."
INDEX { copsClientServerConfigAddrType,
copsClientServerConfigAddress,
copsClientServerConfigClientType,
copsClientServerConfigAuthType }
::= { copsClientServerConfigTable 1 }
CopsClientServerConfigEntry ::=
SEQUENCE {
copsClientServerConfigAddrType InetAddressType,
copsClientServerConfigAddress InetAddress,
copsClientServerConfigClientType INTEGER,
copsClientServerConfigAuthType CopsAuthType,
copsClientServerConfigTcpPort CopsTcpPort,
copsClientServerConfigPriority Integer32,
copsClientServerConfigRowStatus RowStatus
}
copsClientServerConfigAddrType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The type of address in copsClientServerConfigAddress."
::= { copsClientServerConfigEntry 1 }
copsClientServerConfigAddress OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The IPv4, IPv6 or DNS address of a COPS Server. Note that,
since this is an index to the table, the DNS name must be
short enough to fit into the maximum length of indices allowed
by the management protocol in use."
REFERENCE
"RFC 2748 section 2.3"
::= { copsClientServerConfigEntry 2 }
copsClientServerConfigClientType OBJECT-TYPE
SYNTAX INTEGER (0..65535)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The COPS protocol Client-Type for which this entry
applies and for which this COPS server is capable
of serving. Multiple Client-Types can be served by a
single COPS server."
Smith Standards Track [Page 17]
RFC 2940 COPS Client MIB October 2000
REFERENCE
"RFC 2748 section 6, IANA"
::= { copsClientServerConfigEntry 3 }
copsClientServerConfigAuthType OBJECT-TYPE
SYNTAX CopsAuthType
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The type of authentication mechanism for this COPS client
to request when negotiating security at the start of a
connection to a COPS server."
REFERENCE
"RFC 2748 section 4."
::= { copsClientServerConfigEntry 4 }
copsClientServerConfigTcpPort OBJECT-TYPE
SYNTAX CopsTcpPort
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The TCP port number on the COPS server to which the
client should connect."
::= { copsClientServerConfigEntry 5 }
copsClientServerConfigPriority OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The priority of this entry relative to other entries.
COPS client will attempt to contact COPS servers for the
appropriate Client-Type. Higher numbers are tried first. The
order to be used amongst server entries with the same priority
is undefined. COPS servers that are notified to the client using
the COPS protocol PDP-Redirect mechanism are always used in
preference to any entries in this table."
::= { copsClientServerConfigEntry 6 }
copsClientServerConfigRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"State of this entry in the table."
::= { copsClientServerConfigEntry 7 }
Smith Standards Track [Page 18]
RFC 2940 COPS Client MIB October 2000
copsClientServerConfigRetryAlgrm OBJECT-TYPE
SYNTAX INTEGER {
other(1),
sequential(2),
roundRobin(3)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The algorithm by which the client should retry when it
fails to connect to a COPS server."
DEFVAL { sequential }
::= { copsClientConfigGroup 2 }
copsClientServerConfigRetryCount OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"A retry count for use by the retry algorithm. Each retry
algorithm needs to specify how it uses this value.
For the 'sequential(2)' algorithm, this value is the
number of times the client should retry to connect
to one COPS server before moving on to another.
For the 'roundRobin(3)' algorithm, this value is not used."
DEFVAL { 1 }
::= { copsClientConfigGroup 3 }
copsClientServerConfigRetryIntvl OBJECT-TYPE
SYNTAX TimeInterval
UNITS "centi-seconds"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"A retry interval for use by the retry algorithm. Each retry
algorithm needs to specify how it uses this value.
For the 'sequential(2)' algorithm, this value is the time to
wait between retries of a connection to the same COPS server.
For the 'roundRobin(3)' algorithm, the client always attempts
to connect to each Server in turn, until one succeeds or they
all fail; if they all fail, then the client waits for the value
of this interval before restarting the algorithm."
DEFVAL { 1000 }
::= { copsClientConfigGroup 4 }
Smith Standards Track [Page 19]
RFC 2940 COPS Client MIB October 2000
-- -------------------------------------------------------------
-- Conformance Information
-- -------------------------------------------------------------
copsClientConformance OBJECT IDENTIFIER ::= { copsClientMIB 2 }
copsClientGroups OBJECT IDENTIFIER ::= { copsClientConformance 1 }
copsClientCompliances OBJECT IDENTIFIER ::= { copsClientConformance 2 }
-- -------------------------------------------------------------
-- units of conformance
-- -------------------------------------------------------------
copsDeviceStatusGroup OBJECT-GROUP
OBJECTS {
copsClientCapabilities,
copsClientServerTcpPort, copsClientServerType,
copsClientServerAuthType, copsClientServerLastConnAttempt,
copsClientState, copsClientServerKeepaliveTime,
copsClientServerAccountingTime, copsClientInPkts,
copsClientOutPkts, copsClientInErrs, copsClientLastError,
copsClientTcpConnectAttempts, copsClientTcpConnectFailures,
copsClientOpenAttempts, copsClientOpenFailures,
copsClientErrUnsupportClienttype,
copsClientErrUnsupportedVersion, copsClientErrLengthMismatch,
copsClientErrUnknownOpcode, copsClientErrUnknownCnum,
copsClientErrBadCtype, copsClientErrBadSends,
copsClientErrWrongObjects, copsClientErrWrongOpcode,
copsClientKaTimedoutClients, copsClientErrAuthFailures,
copsClientErrAuthMissing
}
STATUS current
DESCRIPTION
"A collection of objects for monitoring the status of
connections to COPS servers and statistics for a COPS client."
::= { copsClientGroups 1 }
copsDeviceConfigGroup OBJECT-GROUP
OBJECTS {
copsClientServerConfigTcpPort, copsClientServerConfigPriority,
copsClientServerConfigRowStatus,
copsClientServerConfigRetryAlgrm,
copsClientServerConfigRetryCount,
copsClientServerConfigRetryIntvl
}
STATUS current
DESCRIPTION
"A collection of objects for configuring COPS server
Smith Standards Track [Page 20]
RFC 2940 COPS Client MIB October 2000
information."
::= { copsClientGroups 2 }
-- -------------------------------------------------------------
-- compliance statements
-- -------------------------------------------------------------
copsClientCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for device support of
management of the COPS client."
MODULE
MANDATORY-GROUPS {
copsDeviceStatusGroup, copsDeviceConfigGroup
}
OBJECT copsClientServerConfigTcpPort
MIN-ACCESS read-only
DESCRIPTION
"Write access is required only if the device supports the
configuration of COPS server information."
OBJECT copsClientServerConfigPriority
MIN-ACCESS read-only
DESCRIPTION
"Write access is required only if the device supports the
configuration of COPS server information."
OBJECT copsClientServerConfigRowStatus
MIN-ACCESS read-only
DESCRIPTION
"Write access is required only if the device supports the
configuration of COPS server information."
OBJECT copsClientServerConfigRetryAlgrm
MIN-ACCESS read-only
DESCRIPTION
"Write access is required only if the device supports the
configuration of COPS server information."
OBJECT copsClientServerConfigRetryCount
MIN-ACCESS read-only
DESCRIPTION
"Write access is required only if the device supports the
configuration of COPS server information."
Smith Standards Track [Page 21]
RFC 2940 COPS Client MIB October 2000
OBJECT copsClientServerConfigRetryIntvl
MIN-ACCESS read-only
DESCRIPTION
"Write access is required only if the device supports the
configuration of COPS server information."
::= { copsClientCompliances 1 }
END
5. Acknowledgments
This document describes instrumentation for the client side of the
COPS protocol which was defined by the RSVP Admission Policy (rap)
Working Group, now known as the Resource Allocation Protocol (rap)
Working Group.
6. Security Considerations
There are a number of management objects defined in this MIB that
have a MAX-ACCESS clause of read-create. Such objects may be
considered sensitive or vulnerable in some network environments. The
support for SET operations in a non-secure environment without proper
protection can have a negative effect on network operations.
SNMPv1 by itself is not a secure environment. Even if the network
itself is secure (for example by using IPSec), even then, there is no
control as to who on the secure network is allowed to access and
GET/SET (read/change/create/delete) the objects in this MIB.
It is recommended that the implementers consider the security
features as provided by the SNMPv3 framework. Specifically, the use
of the User-based Security Model [USM] and the View-based Access
Control Model [VACM] is recommended.
It is then a customer/user responsibility to ensure that the SNMP
entity giving access to an instance of this MIB, is properly
configured to give access to the objects only to those principals
(users) that have legitimate rights to indeed GET or SET
(change/create/delete) them.
Smith Standards Track [Page 22]
RFC 2940 COPS Client MIB October 2000
7. References
[ARCH] Harrington, D., Presuhn, R. and B. Wijnen, "An
Architecture for Describing SNMP Management
Frameworks", RFC 2571, April 1999.
[V1PROTO] Case, J., Fedor, M., Schoffstall, M. and J. Davin,
"Simple Network Management Protocol", STD 15, RFC 1157,
May 1990.
[V1SMI] Rose, M. and K. McCloghrie, "Structure and
Identification of Management Information for TCP/IP-
based Internets", STD 16, RFC 1155, May 1990.
[V1CONCISE] Rose, M. and K. McCloghrie, "Concise MIB Definitions",
STD 16, RFC 1212, March 1991.
[V1TRAPS] Rose, M., "A Convention for Defining Traps for use with
the SNMP", RFC 1215, March 1991.
[V2SMI] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case,
J., Rose, M. and S. Waldbusser, "Structure of
Management Information Version 2 (SMIv2)", STD 58, RFC
2578, April 1999.
[V2TC] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case,
J., Rose, M. and S. Waldbusser, "Textual Conventions
for SMIv2", STD 58, RFC 2579, April 1999.
[V2CONFORM] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case,
J., Rose, M. and S. Waldbusser, "Conformance Statements
for SMIv2", STD 58, RFC 2580, April 1999.
[V2COMMUNITY] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser,
"Introduction to Community-based SNMPv2", RFC 1901,
January 1996.
[V2TRANS] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser,
"Transport Mappings for Version 2 of the Simple Network
Management Protocol (SNMPv2)", RFC 1906, January 1996.
[V2PROTO] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser,
"Protocol Operations for Version 2 of the Simple
Network Management Protocol (SNMPv2)", RFC 1905,
January 1996.
Smith Standards Track [Page 23]
RFC 2940 COPS Client MIB October 2000
[V3INTRO] Case, J., Mundy, R., Partain, D. and B. Stewart,
"Introduction to Version 3 of the Internet-standard
Network Management Framework", RFC 2570, April 1999.
[V3MPC] Case, J., Harrington D., Presuhn R. and B. Wijnen,
"Message Processing and Dispatching for the Simple
Network Management Protocol (SNMP)", RFC 2572, April
1999.
[V3USM] Blumenthal, U. and B. Wijnen, "The User-Based Security
Model (USM) for Version 3 of the Simple Network
Management Protocol (SNMPv3)", RFC 2574, April 1999.
[V3APPS] Levi, D., Meyer, P. and B. Stewart, "SNMP
Applications", RFC 2573, April 1999.
[V3VACM] Wijnen, B., Presuhn, R. and K. McCloghrie, "View-based
Access Control Model for the Simple Network Management
Protocol (SNMP)", RFC 2575, April 1999.
[MIB2] McCloghrie K. and M. Rose, "Management Information Base
for Network Management of TCP/IP-based internets", STD
17, RFC 1213, March 1991.
[FRAMEWORK] Yavatkar, R., Pendarakis, D. and Guerin, R., "A
Framework for Policy-based Admission Control", RFC
2753, January 2000.
[COPS] Boyle, J., Cohen, R., Durham, D., Herzog, S., Rajan, R.
and A. Sastry, "The COPS (Common Open Policy Service)
Protocol", RFC 2748, January 2000.
[RSVP] Braden, R. ed., Zhang, L., Berson, S., Herzog, S. and
S. Jamin, "Resource ReSerVation Protocol (RSVP)
Version 1 - Functional Specification", RFC 2205,
September 1997.
[COPSRSVP] Boyle, J., Cohen, R., Durham, D., Herzog, S., Rajan, R.
and A. Sastry, "COPS Usage for RSVP", RFC 2749, January
2000.
[SRVLOC] Guttman, E., Perkins, C., Veizades, J. and M. Day,
"Service Location Protocol, Version 2", RFC 2608, June
1999.
[ADDRESSMIB] Daniele, M., Haberman, B., Routhier, S. and J.
Schoenwaelder, "Textual Conventions for Internet
Network Addresses", RFC 2851, June 2000.
Smith Standards Track [Page 24]
RFC 2940 COPS Client MIB October 2000
[PROCESS] Bradner, S., "The Internet Standards Process --
Revision 3", BCP 9, RFC 2026, October 1996.
8. Authors' Addresses
Andrew Smith
Fax: +1 415 345 1827
Email: ah_smith@pacbell.net
David Partain
Ericsson Radio Systems
Research and Innovation
P.O. Box 1248
SE-581 12 Linkoping
Sweden
Phone: +46 13 28 41 44
EMail: David.Partain@ericsson.com
John Seligson
Nortel Networks, Inc.
4401 Great America Parkway
Santa Clara, CA 95054
USA
Phone: +1 408 495 2992
EMail: jseligso@nortelnetworks.com
Smith Standards Track [Page 25]
RFC 2940 COPS Client MIB October 2000
9. Notices
The IETF takes no position regarding the validity or scope of any
intellectual property or other rights that might be claimed to
pertain to the implementation or use of the technology described in
this document or the extent to which any license under such rights
might or might not be available; neither does it represent that it
has made any effort to identify any such rights. Information on the
IETF's procedures with respect to rights in standards-track and
standards-related documentation can be found in BCP-11. Copies of
claims of rights made available for publication and any assurances of
licenses to be made available, or the result of an attempt made to
obtain a general license or permission for the use of such
proprietary rights by implementors or users of this specification can
be obtained from the IETF Secretariat.
The IETF invites any interested party to bring to its attention any
copyrights, patents or patent applications, or other proprietary
rights which may cover technology that may be required to practice
this standard. Please address the information to the IETF Executive
Director.
Smith Standards Track [Page 26]
RFC 2940 COPS Client MIB October 2000
10. Full Copyright Statement
Copyright (C) The Internet Society (2000). All Rights Reserved.
This document and translations of it may be copied and furnished to
others, and derivative works that comment on or otherwise explain it
or assist in its implementation may be prepared, copied, published
and distributed, in whole or in part, without restriction of any
kind, provided that the above copyright notice and this paragraph are
included on all such copies and derivative works. However, this
document itself may not be modified in any way, such as by removing
the copyright notice or references to the Internet Society or other
Internet organizations, except as needed for the purpose of
developing Internet standards in which case the procedures for
copyrights defined in the Internet Standards process must be
followed, or as required to translate it into languages other than
English.
The limited permissions granted above are perpetual and will not be
revoked by the Internet Society or its successors or assigns.
This document and the information contained herein is provided on an
"AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING
TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION
HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
Acknowledgement
Funding for the RFC Editor function is currently provided by the
Internet Society.
Smith Standards Track [Page 27]