PCE Working Group Q. Zhao Internet-Draft D. Dhody Intended status: Standards Track U. Palle Expires: March 21, 2011 Huawei Technology D. King Old Dog Consulting September 21, 2010 Management Information Base for the PCE Communications Protocol (PCEP) When Requesting Point-to-Multipoint Services draft-zhao-pce-pcep-p2mp-mib-01 Abstract This memo defines an experimental portion of the Management Information Base for use with network management protocols in the Internet community. In particular, it describes managed objects for modeling of the Path Computation Element communication Protocol (PCEP) for communications between a Path Computation Client (PCC) and a Path Computation Element (PCE), or between two PCEs when point- to- multipoint services are requested. Status of this Memo This Internet-Draft is submitted to IETF in full conformance with the provisions of BCP 78 and BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet- Drafts. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." The list of current Internet-Drafts can be accessed at http://www.ietf.org/ietf/1id-abstracts.txt. The list of Internet-Draft Shadow Directories can be accessed at http://www.ietf.org/shadow.html. This Internet-Draft will expire on March 16, 2011. Zhao, et al. Expires March 16, 2011 [Page 1] Internet-Draft PCE-PCEP-P2MP-DRAFT-MIB September 2010 Copyright Notice Copyright (c) 2010 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. Requirements Language The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in BCP 14, RFC 2119 [RFC2119]. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3 2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3 3. The Internet-Standard Management Framework . . . . . . . . . . 4 4. PCEP P2MP MIB Module Architecture . . . . . . . . . . . . . . 4 5. Example of the PCEP P2MP MIB module usage . . . . . . . . . . 4 6. Object definitions . . . . . . . . . . . . . . . . . . . . . . 5 6.1. PCE-PCEP-P2MP-DRAFT-MIB . . . . . . . . . . . . . . . . . 5 6.2. Objects for inclusion in module PCE-PCEP-DRAFT-MIB . . . . 18 7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 19 8. Security Considerations . . . . . . . . . . . . . . . . . . . 19 9. References . . . . . . . . . . . . . . . . . . . . . . . . . . 20 9.1. Normative References . . . . . . . . . . . . . . . . . . . 20 9.2. Informative References . . . . . . . . . . . . . . . . . . 21 Zhao, et al. Expires March 16, 2011 [Page 2] Internet-Draft PCE-PCEP-P2MP-DRAFT-MIB September 2010 1. Introduction The Path Computation Element (PCE) defined in [RFC4655] is an entity that is capable of computing a network path or route based on a network graph, and applying computational constraints. A Path Computation Client (PCC) may make requests to a PCE for paths to be computed. A P2MP LSP is comprised of multiple source-to-leaf (S2L) sub-LSPs. These S2L sub-LSPs are set up between ingress and egress LSRs and are appropriately combined by the branch LSRs using computation results from the PCE to determine the path of a P2MP TE LSP. The PCE communication protocol (PCEP) is designed as a communication protocol between PCCs and PCEs for point-to-point (P2P) path computations and is defined in [RFC5440]. [PCE-PCEP-P2MP-EXT] explains how to extend the PCEP protocol for P2MP scenario. [PCE-PCEP-DRAFT-MIB] defines a portion of the Management Information Base (MIB) for use with network management protocols in the Internet community for P2P path computations. This memo defines an experimental portion of the Management Information Base for use with network management protocols in the Internet community. In particular, it describes managed objects for modeling of Path Computation Element communication Protocol (PCEP)[RFC5440] for communications between a Path Computation Client (PCC)and a Path Computation Element (PCE), or between two PCEs in P2MP scenarios. Some objects maybe moved to [PCE-PCEP-DRAFT-MIB] after consensus with the authors and working group, these are defined in section 6.2. 2. Terminology The following terminology is used in this document. Domain: Any collection of network elements within a common sphere of address management or path computational responsibility. Examples of domains include Interior Gateway Protocol (IGP) areas and Autonomous Systems (ASs). IGP: Interior Gateway Protocol. Either of the two routing protocols, Open Shortest Path First (OSPF) or Intermediate System to Intermediate System (IS-IS). Zhao, et al. Expires March 16, 2011 [Page 3] Internet-Draft PCE-PCEP-P2MP-DRAFT-MIB September 2010 PCC: Path Computation Client: any client application requesting a path computation to be performed by a Path Computation Element. PCE: Path Computation Element. An entity (component, application, or network node) that is capable of computing a network path or route based on a network graph and applying computational constraints. P2MP: Point-to-Multipoint P2P: Point-to-Point 3. The Internet-Standard Management Framework For a detailed overview of the documents that describe the current Internet-Standard Management Framework, please refer to section 7 of RFC 3410 [RFC3410]. Managed objects are accessed via a virtual information store, termed the Management Information Base or MIB. MIB objects are generally accessed through the Simple Network Management Protocol (SNMP). Objects in the MIB are defined using the mechanisms defined in the Structure of Management Information (SMI). This memo specifies a MIB module that is compliant to the SMIv2, which is described in STD 58,RFC 2578 [RFC2578]and STD 58, RFC 2580 [RFC2580]. 4. PCEP P2MP MIB Module Architecture The PCEP P2MP MIB is just an extention of the exising architecture defiend in [PCE-PCEP-DRAFT-MIB] by adding additional obejcets which are either common to P2P and P2MP or which are specific to P2MP. All these new objects are added into the two new tables (pcePcepExtSessionTable and pcePcepExtClientTable) defined in this new MIB module. The relationship among the two new tables to the two existing tables in [PCE-PCEP-DRAFT-MIB] are shown in the following figure: pcePcepSessionTable <-------- pcePcepExtSessionTable pcePcepClientTable <-------- pcePcepExtClientTable An arrow in the figure above shows that the MIB table pointed from contains a reference to the MIB table pointed to. 5. Example of the PCEP P2MP MIB module usage In this section we provide an example (pcePcepExtClientTable 1) of using the MIB objects described in Section 6 (Object definitions) to monitor. While this example is not meant to illustrate every Zhao, et al. Expires March 16, 2011 [Page 4] Internet-Draft PCE-PCEP-P2MP-DRAFT-MIB September 2010 permutation of the MIB, it is intended as an aid to understanding some of the key concepts. It is meant to be read after going through the MIB itself. pcePcepExtClientTable 1 of the PCE-PCEP-P2MP-DRAFT-MIB module : { pcePcepClientP2mpCapabilityStatus enable(1), pcePcepClientOverloadStatus resumed(2), pcePcepClientOverloadDuration (10), } 6. Object definitions 6.1. PCE-PCEP-P2MP-DRAFT-MIB This MIB module makes references to the following documents. [RFC2578], [RFC2580], [RFC3411], [RFC2863], [RFC3813], [PCE-PCEP- DRAFT-MIB]. PCE-PCEP-P2MP-DRAFT-MIB DEFINITIONS ::= BEGIN IMPORTS MODULE-IDENTITY, OBJECT-TYPE, Unsigned32, Counter32, experimental FROM SNMPv2-SMI -- [RFC2578] pcePcepClientPcepId, pcePcepClientIndex, pcePcepPeerPcepId FROM PCE-PCEP-DRAFT-MIB MODULE-COMPLIANCE, OBJECT-GROUP, FROM SNMPv2-CONF; -- [RFC2580] Zhao, et al. Expires March 16, 2011 [Page 5] Internet-Draft PCE-PCEP-P2MP-DRAFT-MIB September 2010 pcePcepP2mpDraftMIB MODULE-IDENTITY LAST-UPDATED "201009151200Z" --Sep 15, 2010 ORGANIZATION "Path Computation Element (PCE) Working Group" CONTACT-INFO " Quintin Zhao Dhruv Dhody Udayasree Palle Huawei Technology Daniel King OldDog Consulting EMail: qzhao@huawei.com EMail: dhruvd@huawei.com EMail: udayasreepalle@huawei.com EMail: daniel@oldog.co.uk EMail comments directly to the PCE WG Mailing List at pce@ietf.org WG-URL: http://www.ietf.org/html.charters/pce-charter.html " DESCRIPTION "This extended MIB module defines a collection of objects for managing PCE communication protocol(PCEP) when point-to-multipoint services are requested" -- Revision history REVISION "201009151200Z" -- 15 Sep 2010 12:00:00 EST DESCRIPTION " Changes from -00 draft : 1. Removed pathkey objects as these objects to be made as a new MIB module for pathkey. As per section 6.2 of [RFC5520]. 2. Rearrangement of the sectioons for better understanding 3. Addition of STATUS (optional or mandatory) in the definitions 4. Addition of section 6.2 to gather all objects which may be moved to [PCE-PCEP-DRAFT-MIB]" REVISION "201007051200Z" -- July 05 2010 12:00:00 EST DESCRIPTION "draft-00 version" ::= { experimental 9999 } -- Zhao, et al. Expires March 16, 2011 [Page 6] Internet-Draft PCE-PCEP-P2MP-DRAFT-MIB September 2010 pcePcepExtMIBObjects OBJECT IDENTIFIER ::= { pcePcepExtDraftMIB 0 } pcePcepExtConformance OBJECT IDENTIFIER ::= { pcePcepExtDraftMIB 1 } pcePcepExtClientObjects OBJECT IDENTIFIER ::= { pcePcepExtMIBObjects 1 } -- -- PCE Extended Client Objects -- pcePcepClientVersionnumber OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS read-only STATUS optional DESCRIPTION "The current version number of the PCEP protocol is 1." ::= { pcePcepExtClientObjects 1 } pcePcepExtClientTable OBJECT-TYPE SYNTAX SEQUENCE OF PcePcepClientEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table contains information about the PCEP Client." ::= { pcePcepExtClientObjects 2 } pcePcepExtClientEntry OBJECT-TYPE SYNTAX PcePcepClientEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry in this table represents a PCEP client. An entry can be created by a network administrator or by an SNMP agent as instructed by PCEP." INDEX { pcePcepClientPcepId, pcePcepClientIndex, pcePcepPeerPcepId } ::= { pcePcepExtClientTable 1 } PcePcepExtClientEntry ::= SEQUENCE { pcePcepClientP2mpCapabilityStatus INTEGER, pcePcepClientOverloadStatus INTEGER, pcePcepClientOverloadDuration Unsigned32 } Zhao, et al. Expires March 16, 2011 [Page 7] Internet-Draft PCE-PCEP-P2MP-DRAFT-MIB September 2010 pcePcepClientP2mpCapabilityStatus OBJECT-TYPE SYNTAX INTEGER { enable (1), disable(2) } MAX-ACCESS read-only STATUS mandatory DESCRIPTION "The P2MP capability status of this PCEP client." ::= { pcePcepExtClientEntry 1 } pcePcepClientOverloadStatus OBJECT-TYPE SYNTAX INTEGER { overloaded(1), resumed(2) } MAX-ACCESS read-only STATUS optional DESCRIPTION "The Overload status of this PCE client." ::= { pcePcepExtClientEntry 2 } pcePcepClientOverloadDuration OBJECT-TYPE SYNTAX Unsigned32 UNITS "seconds" MAX-ACCESS read-only STATUS optional DESCRIPTION "The period of time during which no further request should be sent to the PCE client. Once this period of time has elapsed, the PCE client should no longer be considered in a congested state." ::= { pcePcepExtClientEntry 3 } pcePcepExtSessionObjects OBJECT IDENTIFIER ::= { pcePcepExtMIBObjects 2 } -- -- The PCEP Ext Sessions Table -- Zhao, et al. Expires March 16, 2011 [Page 8] Internet-Draft PCE-PCEP-P2MP-DRAFT-MIB September 2010 pcePcepExtSessionTable OBJECT-TYPE SYNTAX SEQUENCE OF pcePcepExtSessionEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "A table of extended sessions characteristics between PCEP clients. Each row in this table represents a single session." ::= { pcePcepExtSessionObjects 1 } pcePcepExtSessionEntry OBJECT-TYPE SYNTAX pcePcepExtSessionEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry in this table represents information on a single session between two PCEP clients. The information contained in a row is read-only." ::= { pcePcepExtSessionTable 1 } Zhao, et al. Expires March 16, 2011 [Page 9] Internet-Draft PCE-PCEP-P2MP-DRAFT-MIB September 2010 PcePcepExtSessionEntry ::= SEQUENCE { pcePcepSessionP2mpPCReqMessagesSent Unsigned32, pcePcepSessionP2mpPCRepMessagesSent Unsigned32, pcePcepSessionP2mpPCReqMessagesReceived Unsigned32, pcePcepSessionP2mpPCRepMessagesReceived Unsigned32, pcePcepSessionP2mpAddLeaves Unsigned32, pcePcepSessionP2mpRemoveLeaves Unsigned32, pcePcepSessionP2mpModifyLeaves Unsigned32, pcePcepSessionP2mpUnchangedLeaves Unsigned32, pcePcepSessionTotalMessagesSent Unsigned32, pcePcepSessionOpenMessagesSent Unsigned32, pcePcepSessionKeepaliveMessagesSent Unsigned32, pcePcepSessionPCNtfMessagesSent Unsigned32, pcePcepSessionPCErrMessagesSent Unsigned32, pcePcepSessionTotalMessagesReceived Unsigned32, pcePcepSessionOpenMessagesReceived Unsigned32, pcePcepSessionKeepaliveMessagesReceived Unsigned32, pcePcepSessionPCNtfMessagesReceived Unsigned32, pcePcepSessionPCErrMessagesReceived Unsigned32, pcePcepSessionIntraDomainRequest Unsigned32, pcePcepSessionInterDomainRequest Unsigned32, pcePcepSessionSuccessComps Unsigned32, pcePcepSessionNoReply Unsigned32, pcePcepSessionSyncronization Unsigned32, pcePcepSessionReoptimization Unsigned32, pcePcepSessionFragmentation Unsigned32, pcePcepSessionP2pPCReqMessagesSent Unsigned32, pcePcepSessionP2pPCRepMessagesSent Unsigned32, pcePcepSessionP2pPCReqMessagesReceived Unsigned32, pcePcepSessionP2pPCRepMessagesReceived Unsigned32 } pcePcepSessionP2mpPCReqMessagesSent OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS mandatory DESCRIPTION "The number of P2MP Request messages sent on this session." ::= { pcePcepExtSessionEntry 1 } pcePcepSessionP2mpPCRepMessagesSent OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS mandatory DESCRIPTION "The number of P2MP Reply messages sent on this session." ::= { pcePcepExtSessionEntry 2 } Zhao, et al. Expires March 16, 2011 [Page 10] Internet-Draft PCE-PCEP-P2MP-DRAFT-MIB September 2010 pcePcepSessionP2mpPCReqMessagesReceived OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS mandatory DESCRIPTION "The number of P2MP Request messages received on this session." ::= { pcePcepExtSessionEntry 3 } pcePcepSessionP2mpPCRepMessagesReceived OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS mandatory DESCRIPTION "The number of P2MP Reply messages received on this session." ::= { pcePcepExtSessionEntry 4 } pcePcepSessionP2mpAddLeaves OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS mandatory DESCRIPTION "The number of leaves to be Added (Type1) for the total P2MP requests (PCReq message) received by the PCE." ::= { pcePcepExtSessionEntry 5 } pcePcepSessionP2mpRemoveLeaves OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS mandatory DESCRIPTION "The number of leaves to be Removed (Type2) for the total P2MP requests (PCReq message) received by the PCE." ::= { pcePcepExtSessionEntry 6 } pcePcepSessionP2mpModifyLeaves OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS mandatory DESCRIPTION "The number of leaves to be Modified (Type3) for the total P2MP requests (PCReq message) received by the PCE." ::= { pcePcepExtSessionEntry 7 } Zhao, et al. Expires March 16, 2011 [Page 11] Internet-Draft PCE-PCEP-P2MP-DRAFT-MIB September 2010 pcePcepSessionP2mpUnchangedLeaves OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS mandatory DESCRIPTION "The number of leaves not to be changed (Type4) for the total P2MP requests (PCReq message) received by the PCE." ::= { pcePcepExtSessionEntry 8 } pcePcepSessionTotalMessagesSent OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS mandatory DESCRIPTION "The total number of PCEP messages sent on this session." ::= { pcePcepExtSessionEntry 9 } pcePcepSessionOpenMessagesSent OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS mandatory DESCRIPTION "The number of Open messages sent on this session." ::= { pcePcepExtSessionEntry 10 } pcePcepSessionKeepaliveMessagesSent OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS mandatory DESCRIPTION "The number of Keepalive messages sent on this session." ::= { pcePcepExtSessionEntry 11 } pcePcepSessionPCNtfMessagesSent OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS mandatory DESCRIPTION "The number of PCNtf messages sent on this session." ::= { pcePcepExtSessionEntry 12 } Zhao, et al. Expires March 16, 2011 [Page 12] Internet-Draft PCE-PCEP-P2MP-DRAFT-MIB September 2010 pcePcepSessionPCErrMessagesSent OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS mandatory DESCRIPTION "The number of PCErr messages sent on this session." ::= { pcePcepExtSessionEntry 13 } pcePcepSessionTotalMessagesReceived OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS mandatory DESCRIPTION "The total number of PCEP messages received on this session." ::= { pcePcepExtSessionEntry 14 } pcePcepSessionOpenMessagesReceived OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS mandatory DESCRIPTION "The number of Open messages received on this session." ::= { pcePcepExtSessionEntry 15 } pcePcepSessionKeepaliveMessagesReceived OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS mandatory DESCRIPTION "The number of Keepalive messages received on this session." ::= { pcePcepExtSessionEntry 16 } pcePcepSessionPCNtfMessagesReceived OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS mandatory DESCRIPTION "The number of PCNtf messages received on this session." ::= { pcePcepExtSessionEntry 17 } Zhao, et al. Expires March 16, 2011 [Page 13] Internet-Draft PCE-PCEP-P2MP-DRAFT-MIB September 2010 pcePcepSessionPCErrMessagesReceived OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS mandatory DESCRIPTION "The number of PCErr messages received on this session." ::= { pcePcepExtSessionEntry 18 } pcePcepSessionIntraDomainRequest OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS optional DESCRIPTION "The number of requests sent for the Intra-Domain path computation." ::= { pcePcepExtSessionEntry 19 } pcePcepSessionInterDomainRequest OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS optional DESCRIPTION "The number of requests sent for the Inter-Domain path computation." ::= { pcePcepExtSessionEntry 20 } pcePcepSessionSuccessComps OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS optional DESCRIPTION "The number of requests which had successful computations.In case of PCC-PCE session, it is core computation value and in case of PCE-PCE session, it is transit computation value." ::= { pcePcepExtSessionEntry 21 } pcePcepSessionNoReply OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS optional DESCRIPTION " The number of requests which had not been replied either success or failure." ::= { pcePcepExtSessionEntry 22 } Zhao, et al. Expires March 16, 2011 [Page 14] Internet-Draft PCE-PCEP-P2MP-DRAFT-MIB September 2010 pcePcepSessionSyncronization OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS optional DESCRIPTION "The number of synchronized path computation requests that can be either dependent or independent." ::= { pcePcepExtSessionEntry 23 } pcePcepSessionReoptimization OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS optional DESCRIPTION "The number of requests for Reoptimization." ::= { pcePcepExtSessionEntry 24 } pcePcepSessionFragmentation OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS optional DESCRIPTION "The number of packets of a PCReq / PCRep message which had been fragmented." ::= { pcePcepExtSessionEntry 25 } pcePcepSessionP2pPCReqMessagesSent OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS mandatory DESCRIPTION "The number of P2P Request messages sent on this session." ::= { pcePcepExtSessionEntry 26 } pcePcepSessionP2pPCRepMessagesSent OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS mandatory DESCRIPTION "The number of P2P Reply messages sent on this session." ::= { pcePcepExtSessionEntry 27 } Zhao, et al. Expires March 16, 2011 [Page 15] Internet-Draft PCE-PCEP-P2MP-DRAFT-MIB September 2010 pcePcepSessionP2pPCReqMessagesReceived OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS mandatory DESCRIPTION "The number of P2P PCReq messages received on this session." ::= { pcePcepExtSessionEntry 28 } pcePcepSessionP2pPCRepMessagesReceived OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS mandatory DESCRIPTION "The number of P2P PCRep messages received on this session." ::= { pcePcepExtSessionEntry 29 } --**************************************************************** -- Module Conformance Statement --**************************************************************** pcePcepExtGroups OBJECT IDENTIFIER ::= { pcePcepExtConformance 1 } pcePcepExtCompliances OBJECT IDENTIFIER ::= { pcePcepExtConformance 2 } -- -- Full Compliance -- pcePcepExtModuleFullCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The Module is implemented with support for read-create and read-write. In other words, both monitoring and configuration are available when using this MODULE-COMPLIANCE." MODULE -- this module MANDATORY-GROUPS { pcePcepExtGeneralGroup, } ::= { pcePcepExtCompliances 1 } Zhao, et al. Expires March 16, 2011 [Page 16] Internet-Draft PCE-PCEP-P2MP-DRAFT-MIB September 2010 -- -- Read-Only Compliance -- pcePcepExtModuleReadOnlyCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The Module is implemented with support for read-only. In other words, only monitoring is available by implementing this MODULE-COMPLIANCE." MODULE -- this module MANDATORY-GROUPS { pcePcepExtGeneralGroup, } ::= { pcePcepExtCompliances 2 } -- units of conformance Zhao, et al. Expires March 16, 2011 [Page 17] Internet-Draft PCE-PCEP-P2MP-DRAFT-MIB September 2010 pcePcepExtGeneralGroup OBJECT-GROUP OBJECTS { pcePcepClientP2mpCapabilityStatus, pcePcepSessionP2mpPCReqMessagesSent, pcePcepSessionP2mpPCRepMessagesSent, pcePcepSessionP2mpPCReqMessagesReceived, pcePcepSessionP2mpPCRepMessagesReceived, pcePcepSessionP2mpAddLeaves, pcePcepSessionP2mpRemoveLeaves, pcePcepSessionP2mpModifyLeaves, pcePcepSessionP2mpUnchangedLeaves, pcePcepSessionTotalMessagesSent, pcePcepSessionOpenMessagesSent, pcePcepSessionKeepaliveMessagesSent, pcePcepSessionPCNtfMessagesSent, pcePcepSessionPCErrMessagesSent, pcePcepSessionTotalMessagesReceived, pcePcepSessionOpenMessagesReceived, pcePcepSessionKeepaliveMessagesReceived, pcePcepSessionPCNtfMessagesReceived, pcePcepSessionPCErrMessagesReceived, pcePcepSessionP2pPCReqMessagesSent, pcePcepSessionP2pPCRepMessagesSent, pcePcepSessionP2pPCReqMessagesReceived, pcePcepSessionP2pPCRepMessagesReceived } STATUS current DESCRIPTION "Objects that apply to all PCEP P2MP MIB implementations." ::= { pcePcepExtGroups 1 } END 6.2. Objects for inclusion in module PCE-PCEP-DRAFT-MIB Following are the objects maybe moved to [PCE-PCEP-DRAFT-MIB] after consensus with the authors and working group. Zhao, et al. Expires March 16, 2011 [Page 18] Internet-Draft PCE-PCEP-P2MP-DRAFT-MIB September 2010 pcePcepClientVersionnumber, pcePcepClientP2mpCapabilityStatus, pcePcepClientOverloadStatus, pcePcepClientOverloadDuration, pcePcepSessionTotalMessagesSent, pcePcepSessionOpenMessagesSent, pcePcepSessionKeepaliveMessagesSent, pcePcepSessionPCNtfMessagesSent, pcePcepSessionPCErrMessagesSent, pcePcepSessionTotalMessagesReceived, pcePcepSessionOpenMessagesReceived, pcePcepSessionKeepaliveMessagesReceived, pcePcepSessionPCNtfMessagesReceived, pcePcepSessionPCErrMessagesReceived, pcePcepSessionIntraDomainRequest, pcePcepSessionInterDomainRequest, pcePcepSessionSuccessComps, pcePcepSessionNoReply, pcePcepSessionSyncronization, pcePcepSessionReoptimization, pcePcepSessionFragmentation, pcePcepSessionP2pPCReqMessagesSent, pcePcepSessionP2pPCRepMessagesSent, pcePcepSessionP2pPCReqMessagesReceived, pcePcepSessionP2pPCRepMessagesReceived 7. IANA Considerations TBD 8. Security Considerations The readable objects in the PCE-PCEP-DRAFT-MIB module (i.e., those with MAX-ACCESS other than not-accessible) may be considered sensitive in some environments since, collectively, they provide information about the amount and frequency of path computation requests and responses within the network and can reveal some aspects of their configuration. In such environments it is important to control also GET and NOTIFY access to these objects and possibly even to encrypt their values when sending them over the network via SNMP. SNMP versions prior to SNMPv3 did not include adequate security. 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 module. Zhao, et al. Expires March 16, 2011 [Page 19] Internet-Draft PCE-PCEP-P2MP-DRAFT-MIB September 2010 It is RECOMMENDED that implementers consider the security features as provided by the SNMPv3 framework (see [RFC3410], section 8), including full support for the SNMPv3 cryptographic mechanisms (for authentication and privacy). Further, deployment of SNMP versions prior to SNMPv3 is NOT RECOMMENDED. Instead, it is RECOMMENDED to deploy SNMPv3 and to enable cryptographic security. It is then a customer/operator responsibility to ensure that the SNMP entity giving access to an instance of this MIB module 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. 9. References 9.1. Normative References [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997. [RFC2578] McCloghrie, k., Perkins, D., Schoenwaelder, J., Case, J., Rose, M., and S. Waldbusser, "Structure of Management Information Version 2 (SMIv2)", April 1999. [RFC2580] McCloghrie, k., Perkins, D., Schoenwaelder, J., Case, J., Rose, M., and S. Waldbusser, "Conformance Statements for SMIv2", April 1999. [RFC2863] McCloghrie, k. and F. Kastenholz, "The Interfaces Group MIB", June 2000. [RFC3411] Harrington, D., Presuhn, R., and B. Wijnen, "An Architecture for Describing Simple Network Management Protocol (SNMP) Management Frameworks", December 2002. [RFC3813] Srinivasan, C., Viswanathan, A., and T. Nadeau, "MPLS Multiprotocol Label Switching (MPLS) Label Switch Router Management Information Base", June 2004. [RFC5440] Ayyangar, A ., Farrel, A ., Oki, E., Atlas, A., Dolganow, A., Ikejiri, Y., Kumaki, K., Vasseur, J., and J. Roux, "Path Computation Element (PCE) communication Protocol (PCEP)", March 2009. Zhao, et al. Expires March 16, 2011 [Page 20] Internet-Draft PCE-PCEP-P2MP-DRAFT-MIB September 2010 9.2. Informative References [PCE-PCEP-DRAFT-MIB] Kiran Koushik, A S., Stephan, E., Zhao, Q., and D. King, "PCE communication protocol(PCEP) Management Information Base", July 2010. [PCE-PCEP-P2MP-EXT] Zhao, Q. and D. King, "Introduction and Applicability Statements for Internet-Standard Management Framework", May 2010. [RFC3410] Case, J ., Mundy, R., Partain, D., and B. Stewart, "Introduction and Applicability Statements for Internet-Standard Management Framework", December 2002. [RFC4655] Farrel, A., Vasseur, J., and J. Ash, "A Path Computation Element (PCE)-Based Architecture", RFC 4655, August 2006. [RFC5520] Bradford, R., Ed., Vasseur, JP., and A. Farrel, "Preserving Topology Confidentiality in Inter-Domain Path Computation Using a Path-Key-Based Mechanism", RFC5520, April 2009. Authors' Addresses Quintin Zhao Huawei Technology 125 Nagog Technology Park Acton, MA 01719 US EMail: qzhao@huawei.com Dhruv Dhody Huawei Technology Leela Palace Bangalore, Karnataka 560008 INDIA EMail: dhruvd@huawei.com Udayasree Palle Huawei Technology Leela Palace Bangalore, Karnataka 560008 INDIA EMail: Udayasreepalle@huawei.com Daniel King Old Dog Consulting UK EMail: daniel@olddog.co.uk Zhao, et al. Expires March 16, 2011 [Page 21] Internet-Draft PCE-PCEP-P2MP-DRAFT-MIB September 2010