Performance Management Techniques for Carrier Ethernet Services (IOS Advantage Webinar)

© 2012 Cisco and/or its affiliates. All rights reserved. supathal Cisco Public

Performance Management Techniques for Carrier Ethernet Services A Technology Overview August 2012

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Today’s Presenters

Rabiul Hasan ([email protected]) Product Manager, Cisco

Sudarshan Pathalam ([email protected]) Technical Marketing Engineer, Cisco

Jose Liste ([email protected]) Technical Marketing Engineer, Cisco

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mailto:[email protected]




Agenda Market Drivers and Dynamics Ethernet Performance Management techniques

Y.1731 based Mechanisms CFM based Mechanisms

Ethernet Performance Management Use Cases Service Activation Testing Summary

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Market Drivers and Dynamics


Motivation for Ethernet Services Business Ethernet Services

Flexible offering. P2P, MP. Can be L2VPN, L3VPN or a hybrid

High speed services driven by cloud connectivity

Mobile Backhaul Evolution TDM / PDH to Dual/Hybrid to All-packet (IP/Ethernet)

Single (voice + data) IP/Ethernet mobile backhaul universally accepted solution

Data Center Interconnection (DCI) L2 connectivity across data centers in disjoint geographical locations across MPLS or IP networks

E-‐LINE: Ethernet Private Line (EPL) E-‐LAN: Ethernet Private LAN (EP-‐LAN)

E-‐LINE: Ethernet Virtual Private Line (EVPL) E-‐LAN: Ethernet Virtual Private LAN (EVP-‐LAN)


Ethernet Services by the Numbers Worldwide market for Ethernet services projected to reach $40B+ by 2014

Double-digit annual growth across all geographic regional markets

Asia Pac will be the largest market at 31%

Fastest growing strategic wireline data product for SPs

U.S. Business Ethernet market will grow from $6B in 2011 to $11B in 2014

1Gbps fastest growing and will be 50% of the revenue by 2014

100M will have the highest number of ports, followed closely by 10M, 1G and sub-10M

Bandwidth tipping point in 2011 Aggregated Ethernet BW purchased in US surpassed BW for legacy circuits

Source: Vertical System Group 2012


Ethernet OAM Drivers

OAM benchmarks Set by TDM and existing WAN technologies

Operational Efficiency Reduce OPEX, avoid truck-rolls Downtime cost

Management Complexity Large Span Networks Multiple constituent networks belong to disparate organizations/companies

Fault Management

Performance Management

Detection

Verification

Isolation

Notification

Delay Loss

Delay Variation

Availability


Ethernet OAM Protocols Standards Bodies

Ethernet OAM and Enablers Function

• 802.3 clause 57 (802.3ah) – Ethernet in the First Mile • 802.1ag – Connectivity Fault Management (CFM)

• Fault Monitoring – Port level

• Fault Monitoring – Ethernet Service level

• MEF 16 – Ethernet Local Management Interface (ELMI)

• Fault Monitoring – Ethernet Service level

• Y.1731 – Ethernet OAM Mechanisms

• Y.1564 – Service Activation Methodology

• Fault and Performance Monitoring – Ethernet Service level • Throughput Testing

• RFC 2544 – Benchmarking Method for Network Interconnect Devices • Throughput Testing

http://www.itu.int/

© 2012 Cisco and/or its affiliates. All rights reserved. supathal Cisco Public 10

What is the timeline for Ethernet Performance Management implementation in your network?

[Single choice] Already implemented

Immediate (0-6 months)

Intermediate (6-18 months)

Long Term (18+ months)

What are the main challenges with Ethernet Performance management implementation in your network?

[Multiple choice] Instrumentation (Export Statistics)

Platform support (Hardware/Software)

Multi-vendor interoperability

None

Poll Question #1

Ethernet Performance Management Techniques ITU-T Y.1731 based Mechanisms


ITU-T Y.1731 Overview ITU-T recommendation for user-plane OAM functionality in Ethernet networks. It defines:

Fault Management mechanisms Performance Management mechanisms

Standardized by ITU-T SG 13 in May 2006 [ITU-T Y.1731 (2008)] - Published after IEEE 802.1ag standardization [ITU-T Y.1731 (2008) Amend.1] - Amendment released in July 2010 [ITU-T G.8013/Y.1731 (07/2011)] – In Force

Frame formats (Multicast Address, Ethertype, and common OAMPDU fields) and base functionality are generally agreed upon across IEEE 802.1ag and Y.1731

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Fault Management

Performance Management

Detection

Verification

Isolation

Notification

Delay Loss

Delay Variation

Availability


Key Performance Indicators (KPIs)

Frame Loss Ratio (FLR) – percentage (%) of service frames* (or synthetic frames) not delivered / Total number of service frames (or synthetic frames) transmitted in T time interval Frame Delay (FD) – round-trip/one-way delay for a service frame Frame Delay Variation (FDV) – Variation in frame delay between a pair of service frame Service Availability

* Service frames (Green) are frames that conform to agreed upon level of bandwidth profile conformance

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ITU-T Y.1731 based Mechanisms Frame Delay Measurement


Frame Delay calculated based on timestamps applied to synthetic traffic Applicable to point-to-point and multipoint services

Two (2) mechanisms defined

One-Way ETH-DM Two-Way ETH-DM

Ethernet Delay Measurement ETH-DM

One-Way ETH-DM Two-Way ETH-DM

Performance Metrics

• One-Way FD/FDV • Time-of-Day (ToD)

synchronization required for OW FD

Performance Metrics

• Two-Way FD/FDV • One-Way FD/FDV when

synchronized

ITU-T Y.1731 Frame Delay Measurement


ITU-T Y.1731 Frame Delay Measurement Two-way ETH-DM

MEP MEP

Customer Equipment

Customer Equipment

Service Provider

DMM – Delay Measurement Message DMR – Delay Measurement Reply

(RxTimeStampb – TxTimeStampf) – (TxTimeStampb – RxTimeStampf)

Two-Way Delay

RxTimeStampf – TxTimeStampf

One-Way Delay (Forward)

RxTimeStampb – TxTimeStampb

One-Way Delay (Backward)

Optional Timestamps

TxTimeStampf 0 0 0

DMM TxTimeStampf RxTimeStampf 0 0

DMM DMM

TxTimeStampf RxTimeStampf TxTimeStampb RxTimeStampb

DMR TxTimeStampf RxTimeStampf TxTimeStampb 0

DMR DMR

NEs may be synchronized (ToD) for one-way delay Probe Initiator

& Statistics Calculation

Probe Responder


MEP MEP NEs must be synchronized (ToD) for one-way delay

Delay = RxTimeStampf – TxTimeStampf

One-Way Delay

Delay Var.[tc] = Delay[tc] – Delay[tp]

One-Way Delay Variation

TxTimeStampf 0

RxTimeStampf 1DM

1DM

TxTimeStampf 1DM tp

TxTimeStampf 0

RxTimeStampf 1DM

1DM

TxTimeStampf 1DM tc

tp – Time Previous tc – Time Current

1DM – One-way Delay Measurement

Customer Equipment

Customer Equipment

Service Provider

ITU-T Y.1731 Frame Delay Measurement One-way ETH-DM

Probe Initiator Statistics Calculation

ITU-T Y.1731 based Mechanisms Frame Loss Measurement


Frame Loss calculated based on - Service frame counters (ETH-LM)

- Synthetic frame counters (ETH-SLM)

Measures FLR in - Point-to-Point EVCs only (ETH-LM) - P2P and Multipoint EVCs (ETH-SLM)

Provides - Near End Frame Loss - Far End Frame Loss

Single-Ended ETH-LM Single-Ended ETH-SLM

Ethernet Loss Measurement

Performance Metrics

• Unidirectional Frame Loss • Frame Loss Ratio • Availability

ITU-T Y.1731 Frame Loss Measurement


Single-Ended ETH-LM

(TxFCf[tc] – TxFCf[tp]) – (RxFCf[tc] – RxFCf[tp])

Frame Loss (Far-end)

(TxFCb[tc] – TxFCb[tp]) – (RxFCl[tc] – RxFCl[tp])

Frame Loss (Near-end)

Per-CoS Service Frame counters

TxFCl RxFCl

MEP MEP

Customer Equipment

Customer Equipment

Service Provider

LMM – Loss Measurement Message LMR – Loss Measurement Reply

TxFCf 0 0

LMM LMM

LMR tp

tc

LMM

LMR

TxFCf RxFCf TxFCb

LMR

TxFCf 0 0

LMM

TxFCf RxFCf TxFCb

LMR Per-CoS Service Frame counters

RxFCl TxFCl

tp – Time Previous tc – Time Current

Service Frames



A B

SLM SLR

C SLM – Synthetic Loss Message SLR – Synthetic Loss Reply

Motivation / Problem Statement Loss Measurement for multipoint

Ethernet services Initial loss measurement mechanism

(ETH-LM) in ITU-T Y.1731 only covered point-to-point scenarios

A Synthetic Loss Measurement (ETH-SLM) was later approved in G.8013/Y.1731 (July 2011)

Single-Ended ETH-SLM ITU-T Y.1731 Frame Loss Measurement


MEP MEP

SLM – Synthetic Loss Message SLR – Synthetic Loss Reply

TxFCf 0 SLM SLM

SLR tp

tc

SLM

SLR

(TxFCf[tc] – TxFCf[tp]) – (TxFCb[tc] – TxFCb[tp])

Frame Loss (Far-end)

(TxFCb[tc] – TxFCb[tp]) – (RxFCl[tc] – RxFCl[tp])

Frame Loss (Near-end)

TxFCf TxFCb SLR

TxFCf 0 SLM

TxFCf TxFCb

SLR

Per-Test ID Synthetic Frame counters

TxFCl RxFCl Per-Test ID Synthetic

Frame counters

RxFCl TxFCl

tp – Time Previous – Start of Measurement Period tc – Time Current – End of Measurement Period

Synthetic Frames

RxFCl = TxFCl at Responder

Single-Ended ETH-SLM Customer Equipment

Customer Equipment

Service Provider



Availability Algorithms Calculating Service Availability

0 0 0 0 1 1 1 0 1 1 1 0 0 0 1 FLR indicator

Unavailability Period Availability Period (1) (2)

0 0 0 0 1 1 1 0 1 1 1 0 0 0 1 FLR indicator

t

t

(1) Availability detected (2) Unavailability detected

= Time Interval needed to calculate one FLR using n x SLMs FLR indicator = Frame Loss Ratio > threshold = 1, else 0 FLR Threshold = 50% (default)

tt

Availability Period (1)

Availability Period (1)

Sliding Window (n = 3)

Static Window3 (n = 3)

Ethernet Performance Management Techniques IEEE 802.1ag (CFM) based Mechanisms


CFM based Mechanism LoopBack Message (LBM) based Probe

MEP MEP

Customer Equipment

Customer Equipment

Service Provider

LBM – Loop Back Message LBR – Loop Back Reply

(RxTimeStampB – TxTimeStampA)

Two-Way Delay

TxTimeStampA 0 LBM

LBM

RxTimeStampB LBR

Probe Initiator &

Statistics Calculation LBM Responder

TxTimeStampA 0 LBM

TxTimeStampA 0 LBR

TxTimeStampA LBR

Timestamps added to TLV (e.g. Data

TLV)

No Timestamps added by the Responder


Poll Question #2

What is the performance metric you care the “most” in your service / SLA?

[Single choice] Frame Loss One-Way Delay / Delay Variation Two-Way Delay / Delay Variation

What time of day synchronization method do you use or envision using for One-way delay calculations?

[Multiple choice] Network Time Protocol (NTP)

Precision Time Protocol (IEEE 1588)

Other

Not Interested in One-way statistics

Ethernet Performance Management Use Cases


Use Cases Ethernet L2VPN

Enterprise Branch

Enterprise Branch

EVC

EVC

NID / Access / Demarcation Device

NID

Unmanaged L3 CE

IP-based probe

IP-based probe

Ethernet Service Provider

Ethernet Connectivity IP-based performance probes between HQ and Branch sites

L3 CE

L3 CE

Shadow Router

Optional

EVC = Ethernet Virtual Circuit NID = Network Interface Device = CFM Maintenance Association End Point (MEP)

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Use Cases L3VPN with Ethernet Access (CE-PE)

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Shadow Router

Optional

L3VPN Customer


EVC

Managed L3 CE

L3 PE

IP / MPLS Core

VRF Internet

NID

Third Party Ethernet Service Provider Or Transport / Aggregation Department

IP Department IP Department

Managed L3 CE

DSLAM G.SHDSL

Aggregator Demarc Device

EVC

IP-based probe



Use Cases Mobile Backhaul

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EVC Demarc

Demarc EVC Demarc


Wireline Provider / Mobile Backhaul Operator

RNC

BSC

SAEGW

eNodeB (4G) NodeB (3G) BTS (2G)

4G

3G

2G

Ethernet backhaul Ethernet-based performance probes between Distribution and Cell Site routers

Cell Site Router

Distribution Router

Distribution Router

eNode B = Enhanced Node B SAEGW = System Arch Evolution GW RNC = Radio Network Controller

MTSO = Mobile Telephone Switching Office BTS = Base Transceiver Station BSC = Base Station Controller

Mobile Operator Cell Site(s) Mobile Operator MTSO



Use Cases Broadband/Wholesale Access

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EVC Aggregator BNG/ BRAS

SP Retail ISP

VRF Internet

Aggregator DSLAM/ PON/OLT

EVC (Bitstream Wholesale)

Retail ISP

Residential Subscribers

Internet

Wholesale SP subscribers


Broadband Department EVC = Ethernet Virtual Circuit NID = Network Interface Device = CFM Maintenance Association End Point (MEP)

Third Party Ethernet Service Provider Or Transport / Aggregation Department

Broadband Department / Wholesale SP

Service Activation Testing


Service Activation Ethernet Throughput operation

Verification of max rate of frame transmission with no frame loss Bidirectional or Unidirectional throughput measurement

On-demand / Out-of-Service (Intrusive) operation used during service turn-up OPEX and CAPEX savings

Eliminates need for truck roll / technician dispatch Eliminates need for external test equipment at customer premises

Throughput measurement methodology traditionally defined in RFC2544 Requested functionality referred generally as RFC 2544 Test Head ITU-T Y.1564 provides an alternative to RFC2544 test methodology


Test Initiator Responder

EVC TG

Ethernet Data-Plane Loopback Test Traffic

TG = Traffic Generation function HW-accelarated (Platform-Dependent) RL – Responder Logic

Test Initiator Responder

EVC TG

Test Traffic

RL

Start Reply / Request

Stop Reply / Request

Bi-directional Ethernet Throughput

Uni-directional Ethernet Throughput

Throughput Measurements

MEF Service Activation PDU Project (work in progress)

Loopback Signaling MEF Ethernet Latching Loopback Project (work in progress)

MEF Service Activation testing Project

(work in progress)

MEF Service Activation PDU Project (work in progress)


Throughput Measurements Ethernet Data-Plane Loopback

Ethernet data traffic can be looped back on a per port / per VLAN basis Use cases:

Service turn-up Post service turn-up troubleshooting Out-of-service throughput testing

Enabled via CLI configuration Configurable SRC and DST MAC Addresses swap Configurable direction:

Facility Loopback (facing wire) Terminal Loopback (facing bridge)

Complements CFM Loopback External central Test Head allows for flexible and sophisticated test traffic patterns UNI Customer

CPE

Central Test Head

Carrier Ethernet Network

NNI

Facility Loopback

Terminal Loopback


Throughput Use Case

Application: Service Turn-Up (out-of-service) Throughput Test - POP-Local Demarc (shown) or POP-Remote Demarc

L2 Loopback/External Test Head

Customer site / Cell Site


L2VPN

L2 Provider POP

L2 AGG

Unmanaged CE Cell

Site Router

Central Test

Head

A,C X,Y

A,C Y,X

ip = Y mac = C

Test Traffic

EVC EVC

L2 Loopback

Ethernet Data-‐plane Loopback

Hardware-accelerated (no CPU intervention)

MAC-aware Loopback

Configurable filters based on based on header information (e.g. source / dest mac address)

MAC swap

L2 Loopback


Application: Service Turn-Up (out-of-service) Throughput Test - POP-Local Demarc (shown) or POP-Remote Demarc

Customer site / Cell Site


Unmanaged CE Cell

Site Router

EVC EVC

Test Traffic

L2 loopback

TG

TG – On-board traffic generator

Throughput Use Case L2 Loopback/On board Test Head


Throughput Use Case

Application: Resolve Finger Pointing

L2 Loopback on E-NNI

Customer site Ethernet Service Provider A Customer site

Unmanaged CE

Unmanaged CE

EVC

L2 loopback L2 loopback

Loop 1 Loop 2 Loop 3 Loop 4

Loop 5

Ethernet Service Provider B (Wholesale provider)

On double-tagged E-NNIs, loop could be per Outer/Inner vlan combo

TG

TG – On-board traffic generator

© 2012 Cisco and/or its affiliates. All rights reserved. supathal Cisco Public 39

Poll Question #3

Select the “best” answer describing the need for Ethernet throughput tests in your network ?

[Single choice] Bidirectional Ethernet throughput tests are critical in my network Unidirectional Ethernet throughput tests are critical in my network

Ethernet throughput tests are NOT my top priority

How important is the signaling of Dataplane Loopback request in your environment?

[Single choice] Very important, must have signaled Loopback for deployment

Desirable

Not important, command line triggered Loopback would suffice

Summary


Ethernet Performance Management

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Standard CFM PDU

• Unidirectional frame

loss measurements • Applicable to P2P and

MP services

• SLM / SLRPDUs • Based on statistical

sampling • Exchange of synthetic

frame counters

Ethernet Delay Measurement

Single-Ended ETH-SLM

Single-Ended ETH-LM

Ethernet Loss Measurement ETH-LM

• Unidirectional frame

loss measurements • Applicable to P2P

services only

• LMM / LMRPDUs • Based on actual Service

Frame Loss • Exchange of service

frame counters

• Two-Way Delay measurement

• Standard LBM / LBR PDU • Interoperable with non-Cisco

CFM-capable devices • RTT measurement includes

remote end-point processing (no timestamps added by Responder)

Ethernet Delay Measurement ETH-DM

One-Way ETH-DM Two-WayETH-DM

• One-Way delay

measurements

• 1DM PDU • Synthetic traffic with two

(2) timestamps • Need for Time-of-Day

synchronization

• Two-Way delay

measurements • Also One-Way delay

when synchronized

• DMM / DMRPDUs • Synthetic traffic with two

(2) mandatory and two (2) optional timestamps

Scope

Specifics

ITU-‐T Y.1731 based Mechanisms IEEE 802.1ag based Mechanism


Ethernet OAM Cisco Platform Support

Access

Cisco 7600 ASR 9000 XR 12000

Catalyst 6500 Catalyst 4500 Catalyst 4900 Cisco ONS 15454 Cisco CGS 2520 Cisco ASR 903

Cisco ME3400 Cisco ME3400E Cisco ME3600X Cisco ME3800X Cisco ME3600CX Cisco ME4924 Cisco ME6524 Catalyst 3750-ME ASR 901

Cisco 880/890 Cisco 1800/2800/3800 Cisco 1900/2900/3900 Cisco 7200/7201/7301 Cisco MWR 2941 Cisco CGR 2010 Cisco ASR 1000

Aggregation

Customer Premise

Core

CRS-1 CRS-3

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Cisco Prime Performance Manager

Cisco Prime™ Performance Manager is an easy to deploy and easy to use solution for gathering and reporting on performance statistics for Cisco and multi-vendor networks.

Easy-to-extend

Easy-to-use

Easy-to-deploy

Easy-to-manage

Easy-to-integrate

Cost-Effective Proactive Service Monitoring for IP NGN Networks

Collects

Analyzes

Generates

Network Elements’ Raw Data

and Processes Collected Data

Standard and

Customs Reports


Key Takeaways

Service Provider demand / visibility for Ethernet Performance Management is significant

Impact on customer purchasing decisions Competitive differentiator

ITU-T Y.1731 Performance Management provides required mechanisms to monitor Ethernet service layer Service activation crucial in SLA delivery/management/troubleshooting

Ethernet dataplane loopack is a step in that direction


Acronyms Acronym AIS Alarm Indication Signal

CCM Continuity Check Message

CCMDB CCM Data Base (see CCM)

CE Customer Edge

CFM Connectivity Fault Management

EFM Ethernet in the First Mile

E-LMI Ethernet LMI (see LMI)

E-OAM Ethernet OAM (see OAM)

EVC Ethernet Virtual Connection

IEEE Institute of Electrical and Electronics Engineers

ITU International Telecommunication Union

LBM Loopback Message

LBR Loopback Reply

LMI Local Management Interface

LTM Linktrace Message

LTR Linktrace Reply

MA Maintenance Association

MAID MA Identifier (see MA)

MD Maintenance Domain

Acronym MEF Metro Ethernet Forum

MEN Metro Ethernet Network

MEP Maintenance Association End Point

MEPID MEP Identifier (see MEP)

MHF MIP Half Function (see MIP)

MIB Management Information Base

MIP Maintenance Domain Intermediate Point

MP Maintenance Point

OAM Operations, Administration and Maintenance

PDU Protocol Data Unit

PE Provide Edge

RDI Remote Defect Indicator

RFI Remote Failure Indicator

TLV Type, Length, Value

UNI User to Network Interface

UNI-C Customer side of UNI (see UNI)

UNI-N Network side of UNI (see UNI)

VID VLAN Identifier

VLAN Virtual LAN

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E-OAM Documentation at Cisco.com

IOS Carrier Ethernet Configuration Guide http://www.cisco.com/en/US/docs/ios-xml/ios/cether/configuration/15-2s/ce-15-2s-book.html

IOS XE Carrier Ethernet Configuration Guide http://www.cisco.com/en/US/docs/ios-xml/ios/cether/configuration/xe-3s/ce-xe-3s-book.html

Service Diagnostics Documentation and Scripts http://www.cisco.com/go/iossd

Link OAM Configuration Guide http://www.cisco.com/en/US/docs/ios/cether/configuration/guide/ce_oam.html

Y.1731 Fault Management Configuration Guides http://www.cisco.com/en/US/docs/ios/cether/configuration/guide/ce_cfm-ieee_y1731.html

Y.1731 Performance Management Configuration Guides http://www.cisco.com/en/US/docs/ios-xml/ios/cether/configuration/xe-3s/ce-y1731-perfmon.html

Ethernet Local Management Interface (E-LMI) Configuration Guides http://www.cisco.com/en/US/docs/ios/cether/configuration/guide/ce_elmi-pe.html (PE role) http://www.cisco.com/en/US/docs/ios/cether/configuration/guide/ce_elmi_ps10591_TSD_Products_Configur

ation_Guide_Chapter.html (CE role)

47

http://www.cisco.com/en/US/docs/ios-xml/ios/cether/configuration/15-2s/ce-15-2s-book.html

http://www.cisco.com/en/US/docs/ios-xml/ios/cether/configuration/xe-3s/ce-xe-3s-book.html

http://www.cisco.com/go/iossd

http://www.cisco.com/en/US/docs/ios/cether/configuration/guide/ce_oam.html

http://www.cisco.com/en/US/docs/ios/cether/configuration/guide/ce_cfm-ieee_y1731.html

http://www.cisco.com/en/US/docs/ios-xml/ios/cether/configuration/xe-3s/ce-y1731-perfmon.html

http://www.cisco.com/en/US/docs/ios/cether/configuration/guide/ce_elmi-pe.html

http://www.cisco.com/en/US/docs/ios/cether/configuration/guide/ce_elmi_ps10591_TSD_Products_Configuration_Guide_Chapter.html

http://www.cisco.com/en/US/docs/ios/cether/configuration/guide/ce_elmi_ps10591_TSD_Products_Configuration_Guide_Chapter.html



IP SLAs for Metro Ethernet http://www.cisco.com/en/US/docs/ios/ipsla/configuration/guide/sla_metro_ethernet.html

IP SLAs LSP Health Monitor http://www.cisco.com/en/US/docs/ios/ipsla/configuration/guide/sla_lsp_mon_autodisc.html

Cisco ME3600X/ME3800X Ethernet OAM, CFM and E-LMI Configuration Guide http://www.cisco.com/en/US/docs/switches/metro/me3600x_3800x/software/release/15.1_2_ey/configuratio

n/guide/swoam.html

Cisco ME3400E CFM, Y.1731, E-LMI and Link OAM Configuration Guide http://www.cisco.com/en/US/docs/switches/metro/me3400e/software/release/12.2_58_se/configuration/guid

e/swoam.html

Cisco ME3400 CFM, Y.1731, E-LMI and Link OAM Configuration Guides http://www.cisco.com/en/US/docs/switches/metro/me3400/software/release/12.2_58_se/configuration/guide

/swoam.html

Cisco Catalyst 3750-ME CFM, E-LMI and Link OAM Configuration Guides http://www.cisco.com/en/US/docs/switches/metro/catalyst3750m/software/release/12.2_58_se/configuration

/guide/swoam.html

48

http://www.cisco.com/en/US/docs/ios/ipsla/configuration/guide/sla_metro_ethernet.html

http://www.cisco.com/en/US/docs/ios/ipsla/configuration/guide/sla_lsp_mon_autodisc.html

http://www.cisco.com/en/US/docs/switches/metro/me3600x_3800x/software/release/15.1_2_ey/configuration/guide/swoam.html

http://www.cisco.com/en/US/docs/switches/metro/me3600x_3800x/software/release/15.1_2_ey/configuration/guide/swoam.html

http://www.cisco.com/en/US/docs/switches/metro/me3400e/software/release/12.2_58_se/configuration/guide/swoam.html



http://www.cisco.com/en/US/docs/switches/metro/me3400/software/release/12.2_58_se/configuration/guide/swoam.html

http://www.cisco.com/en/US/docs/switches/metro/me3400/software/release/12.2_58_se/configuration/guide/swoam.html

http://www.cisco.com/en/US/docs/switches/metro/catalyst3750m/software/release/12.2_58_se/configuration/guide/swoam.html

http://www.cisco.com/en/US/docs/switches/metro/catalyst3750m/software/release/12.2_58_se/configuration/guide/swoam.html



Cisco Catalyst 4500 CFM and OAM Configuration Guide http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/3.1.1SG/configuration/guide/CFM.html http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/15.02SG/configuration/guide/E_OAM.html

Cisco Catalyst 4500 Y.1731 AIS and RDI Configuration Guide http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/3.1.1SG/configuration/guide/Y1731.html http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/15.02SG/configuration/guide/Y1731.html

Cisco ONS 15454 ML-MR-10 CFM, E-LMI and Link OAM Configuration Guide http://www.cisco.com/en/US/docs/optical/15000r9_0/ethernet/454/guide/45490a_eoamonmlmr.html

EoMPLS Remote Link Failure Notification via E-LMI (aka Remote Port Shutdown) http://www.cisco.com/en/US/docs/ios/12_2sr/12_2srb/feature/guide/srbrpsdn.html

Cisco IOS Carrier Ethernet Command Reference http://www.cisco.com/en/US/docs/ios/cether/command/reference/ce_book.html

Cisco ASR 9000 Ethernet OAM Configuration Guide http://www.cisco.com/en/US/docs/routers/asr9000/software/asr9k_r4.1/interfaces/configuration/guide/hc41eo

am.html

Cisco ASR 9000 Ethernet OAM Command Reference http://www.cisco.com/en/US/docs/routers/asr9000/software/asr9k_r4.1/interfaces/command/reference/b_inter

faces_cr41asr9k_chapter_0101.html

4

http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/3.1.1SG/configuration/guide/CFM.html

http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/15.02SG/configuration/guide/E_OAM.html

http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/3.1.1SG/configuration/guide/Y1731.html

http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/15.02SG/configuration/guide/Y1731.html

http://www.cisco.com/en/US/docs/optical/15000r9_0/ethernet/454/guide/45490a_eoamonmlmr.html

http://www.cisco.com/en/US/docs/ios/12_2sr/12_2srb/feature/guide/srbrpsdn.html

http://www.cisco.com/en/US/docs/ios/cether/command/reference/ce_book.html

http://www.cisco.com/en/US/docs/routers/asr9000/software/asr9k_r4.1/interfaces/configuration/guide/hc41eoam.html

http://www.cisco.com/en/US/docs/routers/asr9000/software/asr9k_r4.1/interfaces/configuration/guide/hc41eoam.html

http://www.cisco.com/en/US/docs/routers/asr9000/software/asr9k_r4.1/interfaces/command/reference/b_interfaces_cr41asr9k_chapter_0101.html

http://www.cisco.com/en/US/docs/routers/asr9000/software/asr9k_r4.1/interfaces/command/reference/b_interfaces_cr41asr9k_chapter_0101.html


E-OAM Documentation at Cisco.com Cisco CRS-1 Ethernet OAM Configuration Guide

http://www.cisco.com/en/US/docs/routers/crs/software/crs_r4.1/interfaces/configuration/guide/hc41eoam.html

Cisco CRS-1 Ethernet OAM Command Reference http://www.cisco.com/en/US/docs/routers/crs/software/crs_r4.1/interfaces/command/reference/b_interfaces_

cr41crs_chapter_0110.html

Cisco XR 12000 Ethernet OAM Configuration Guide http://www.cisco.com/en/US/docs/routers/xr12000/software/xr12k_r4.1/interfaces/configuration/guide/hc41eo

am.html

Cisco XR 12000 Ethernet OAM Command Reference http://www.cisco.com/en/US/docs/routers/xr12000/software/xr12k_r4.1/interfaces/command/reference/b_inte

rfaces_cr41xr12k_chapter_0101.html

Cisco ASR 1000 CFM Configuration Guide http://www.cisco.com/en/US/docs/ios-xml/ios/cether/configuration/xe-3s/ce-cfm-ieee-xe.html http://www.cisco.com/en/US/docs/ios-xml/ios/cether/configuration/xe-3s/ce-y1731-perfmon.html

Cisco ASR 901 Ethernet OAM Configuration Guide http://www.cisco.com/en/US/docs/wireless/asr_901/Configuration/Guide/oam.html

Cisco Active Network Abstraction (ANA) Guide and Reference http://www.cisco.com/en/US/products/ps6776/products_user_guide_list.html

5



http://www.cisco.com/en/US/docs/routers/crs/software/crs_r4.1/interfaces/command/reference/b_interfaces_cr41crs_chapter_0110.html

http://www.cisco.com/en/US/docs/routers/crs/software/crs_r4.1/interfaces/command/reference/b_interfaces_cr41crs_chapter_0110.html

http://www.cisco.com/en/US/docs/routers/xr12000/software/xr12k_r4.1/interfaces/configuration/guide/hc41eoam.html

http://www.cisco.com/en/US/docs/routers/xr12000/software/xr12k_r4.1/interfaces/configuration/guide/hc41eoam.html

http://www.cisco.com/en/US/docs/routers/xr12000/software/xr12k_r4.1/interfaces/command/reference/b_interfaces_cr41xr12k_chapter_0101.html

http://www.cisco.com/en/US/docs/routers/xr12000/software/xr12k_r4.1/interfaces/command/reference/b_interfaces_cr41xr12k_chapter_0101.html

http://www.cisco.com/en/US/docs/ios-xml/ios/cether/configuration/xe-3s/ce-cfm-ieee-xe.html

http://www.cisco.com/en/US/docs/ios-xml/ios/cether/configuration/xe-3s/ce-y1731-perfmon.html

http://www.cisco.com/en/US/docs/wireless/asr_901/Configuration/Guide/oam.html

http://www.cisco.com/en/US/products/ps6776/products_user_guide_list.html

Performance Management Techniques for Carrier Ethernet Services (IOS Advantage Webinar)

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