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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]