1 Goals and objectives Project(s): Service OAM MIB Purpose of the contribution: Status update of the Service OAM MIB project Abstract: The SOAM MIB project.

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Goals and objectives

Project(s): Service OAM MIB

Purpose of the contribution: Status update of the Service OAM MIB project

Abstract: The SOAM MIB project continued work on the FM/TC and PM MIBs. Reviewed and incorporated SB comment for the FM/TC MIBs.

Motion: Yes, four motions: two approved drafts, one to initiate a straw ballot and one to initiate a letter ballot

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SOAM MIB Status Beijing, China, October 2010

Steve MoodOmnitron Sytems

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History

• Ad Hoc was created during the 2009 4Q meeting

• Project committee was created during the 2010 Q1 meeting

• FM/TC MIBs were submitted to Straw Ballot during the 2010 Q2 meeting

• FM/TC MIBs were submitted to a second Straw Ballot during the 2010 Q3 meeting

• FM/TC MIB to letter ballot meeting and PM MIB to straw ballot during the 2010 Q4 meeting

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Original Scope of the Project

• A project in the Management Area• Guiding principle

– Keep the scope of the project small

• Concentrate on SOAM PM and extensions needed for SOAM FM– Ensure the project provides needed functionality and is small enough to

be completed in a reasonable amount of time

• Documents– A document containing an SNMP MIB for configuring and monitoring

SOAM PM capabilities in a Carrier Ethernet environment.– A document containing an SNMP MIB that includes the extensions

needed to the IEEE CFM MIBs for the new functionality described in the SOAM FM document.

– As a stretch goal, produce a document that includes a YANG model for NETCONF using the same source material used to create the SNMP MIBs for both PM and the FM extensions.

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Rationale

• Creating an SNMP MIB would be beneficial– Help interoperability between vendor

implementations• Allow network operators the freedom to move

away from NE-EMS single vendor solutions• One NMS or EMS vendor can interoperate with

multiple vendor NEs– Provide a baseline of functionality that supports FM &

PM Implementation Agreements (IA)

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Quarterly Status

• 14 Conference Calls were held during the last quarter

• Participation was good. Thanks for those who helped this work along:

Steve Mood (Omnitron) Ken Huang (Omnitron)Brian Hedstrom (CableLabs) Mark Sylor (Exfo)Carl Moberg (Tail-f) Mehmet Toy (Comcast)David Ball (Cisco) Michael Bugenhagen (CenturyLink)Eddie Jones (Frontier) Moti Nisim (Telco)Jimmy Hu (Ciena) Sri Gangula (Adva)Johan Bevemyr (Tail-f)

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Quarterly Status, cont.

• Large part of quarterly meetings covered the Performance Monitoring (PM) MIB– MIB was written– MIB was reviewed and updated

• Reviewed Straw Ballot Comments for Fault Management (FM) MIB (SB #2)– All the SB comments were reviewed and resolved– Received feedback from the MIB Doctors and their

changes have been incorporated into MIB

• Started work on YANG model for NETCONF

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SOAM MIB Project Timeline/Schedule

• 1Q 2010: Project Launch• 2Q 2010: FM/TC MIB went to SB #1• 3Q 2010: FM/TC MIB went to SB #2• 4Q 2010: Move FM/TC MIB for LB, PM MIB for

SB #1• 1Q 2011: Move PM MIB for SB #2 (LB?),

YANG FM model for SB #1• 2Q 2011: Move PM MIB to LB, YANG FM

model for SB #2, YANG PM model for SB #1• 3Q 2011: Move YANG FM model for LB• 4Q 2011: Move YANG PM model for LB

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FM MIB SB #2 Results

• SB #2 Results– 16 Yes votes, 5 Yes with comments, 1 No with

comments, 5 Abstains– 36 comments were received from 5 companies

• SB #1 Results (last quarter)– 11 Yes, 5 Yes w/comments, 2 No w/comments, 5

abstains– 104 comments were received from 8 companies

• SB comments incorporated into FM MIB– Consolidated comments – Updated FM/TC MIB posted

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PM MIB Status

• The PM MIB was reviewed and completed during the quarter– Global configuration area– DM (Delay Measurement) configuration, current

statistic table, and historic statistic table– LM (Loss Measurement) configuration, current

statistic table, and historic statistic table– Notification section: containing state alarms and

threshold crossing notifications– Conformance & compliance section– Compiled successfully with MG-Soft and LIBSMI

• To be submitted to MIB Doctors next quarter

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PM MIB Open Item – History table index

• Method 1: Most of the standard IETF MIBs have a fixed indexing structure where index 1 is the most recently completed measurement interval. – With 15 minutes intervals in 24 hours would result in

index values 1..96

• Method 2: Index starts at 1 but increases overtime, so that the youngest completed measurement interval is the largest index number– Creates a “sliding window” of valid indexes. – With 15 minute intervals in 24 hours would result in

index values (x)..(x+95) in a 24 hour period• Comments? [email protected]

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History table index - Pros and Cons

• Method 1 (fixed index)– Pros

• Supported by standard IETF MIBs: DS1 (RFC2495/3895), DS3 (RFC2496/3896), SONET (RFC 3592), ADSL (RFC2662), HDLS2 (RFC4319) MIBs and RFC 2493/3593/3705 (HC-PerfHist-TC-MIB)

• Common method implemented with history tables– Cons

• Implementation of OSS very complicated, as a given index refers to different data at different points in time. It is very hard to ensure there are no race conditions when accessing multiple objects.

• Many OSS/NMS do not get this right

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History table index - Pros and Cons

• Method 2 (sliding index)– Pros

• Simplifies OSS design• Reduces data integrity problem of when is the data

valid in a particular row • Supported by some proprietary MIBs, such as Cisco

IP-SLA (RTTMON) MIB, which is widely used– Cons

• Not generally supported by IETF MIBs

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Motion #1

• Approve contribution 35071_001 as Approved Draft 3 of the Service OAM FM MIB Technical Specification

• Motion:• Second:• Voting:

– Yes– No– Abstain

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Motion #2

• Initiate Letter Ballot on Approved Draft 3 of Service OAM FM MIB Technical Specification (based on 35071_001 )

• Motion:• Second:• Voting:

– Yes– No– Abstain

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Motion #3

• Approve contribution 35072_000 as Approved Draft 1 of the Service OAM PM MIB Technical Specification

• Motion:• Second:• Voting:

– Yes– No– Abstain

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Motion #4

• Initiate Straw Ballot on Approved Draft 1 of Service OAM PM MIB Technical Specification (based on 35072_000 )

• Motion:• Second:• Voting:

– Yes– No– Abstain