Swati Somani - Manageability of Voice Networks - Interop Mumbai 2009
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Swati Somani - Manageability of Voice Networks - Interop Mumbai 2009

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In traditional networking environments, support has always been provided on a reactive basis; issues are reported by end-users and then support staff endeavors to resolve them. With integration of ...

In traditional networking environments, support has always been provided on a reactive basis; issues are reported by end-users and then support staff endeavors to resolve them. With integration of voice, video and data networks, this approach is unacceptable. Voice applications are business-critical and have extremely low fault tolerance, which means virtually any fault can render them inoperable. The intent of this session is to describe network management activities involved in creating a proactive support model for IP Telephony, which ensures an optimally performing network with continuous uptime.

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    Swati Somani - Manageability of Voice Networks - Interop Mumbai 2009 Swati Somani - Manageability of Voice Networks - Interop Mumbai 2009 Presentation Transcript

    • Manageability of Voice Networks Swati Somani CCIE Voice #18155 Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 1
    • Today’s Discussion Problems in managing voice networks The solution: Voice Network Management Systems (VNMS) Understanding the model and its elements Mapping VNMS to industry wish list Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 2
    • Problems in Managing Voice Networks No Dialtone!!!!!!!!! Emergency calls not working… Trap: Link Down Phone calls not working Voice not clear… I cant hear you well…… Unable to join the conference..missed a critical meeting!!!!! HQ phones not able to call Hello branch.. ..heello…heloo helooo.. Ping: Device Unreachable Phone not ringing!!!!!! Too many No Voicemail disconnected access… calls…. Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 3
    • The Solution Voice Network Management Systems (VNMS) Unprecedented visibility and control over enterprise voice networks Continuously monitor, detect and notify – all in real time Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 4
    • Understanding The Model Voice Network Management Hierarchical Model Business Intelligence Event Event Bi-Directional Communication Correlation Automation Correlation and Manager of Automation Service Managers (MoM) (Intelligence) Management Service Manager Incident / Common Bi-Directional Communication Layer (SML) Change Database Management Filtering and Forwarding Fault Configuration Accounting Performance Security Network Management Management Management Management Management Management Layer (NML) Fault Configuration Accounting Performance Security Managers Managers Managers Managers Managers Direct Polling or Unsolicited Notification Element Management Layer (NML) Syslog SNMP NetFlow IPSLA Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 5
    • Understanding The Managed Elements SNMP Syslog IPSLA RMON NBAR AXL/SOAP Infrastructure Applications Endpoints A VoIP CC WAN CUCM Unity CME/CUE UCCC PSTN Presence Probe Headquarters Branch Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 6
    • Mapping VNMS To Industry Wish List Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 7
    • The Wish List Perform proactive network and voice management Provide real-time alerting and notification Perform diagnostic tests to identify potential problems Monitor voice quality Perform root cause analysis and impact analysis Provide voice statistics analysis and reporting Simplify deployment and operations Reduce network costs and support costs Voice Network Management System has the answers Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 8
    • Proactive Network and Voice Management Automatic discovery of UC devices and the underlying network infrastructure Provide a Holistic graphical drill- down view of Operations .1.3.6.1.4.1.9.9.156.2.0.3; cm1; ccmPhoneStatusUpdate … Provide Real-time monitoring .1.3.6.1.4.1.9.9.156.2.0.3; cm1; ccmPhoneStatusUpdate .1.3.6.1.4.1.9.9.156.2.0.3; cm1; across ccmPhoneStatusUpdate .1.3.6.1.4.1.9.9.156.2.0.3; cm1; ccmPhoneStatusUpdate •Every UC device •Endpoint •Link/interfaces •Application services •Features and Functionality •Devices and Phones inventory Presentation_ID •Device Performance management © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 9
    • Real-Time Alerting and Notification Setup filters and thresholds Alerting and immediate notification on •Threshold violation •Device / end point unreachable Email Trap Syslog •Service failure •Voice quality violation Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 10
    • Diagnostic Tests To Identify Potential Problems Device Status Queries Phone Registration End-to-End Call Simulate End User Activity Replicate voice traffic •End-to-End calls •Measure latency / Jitter / •Phone Registration packet loss •Dial Tone •Conference •Message Waiting •Emergency call Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 11
    • Monitor Call Quality Excellent ? Good ? Fair? Satisfactory? Unsatisfactory? Analyse and report on the quality of voice for active calls. Mean Opinion Score (MOS) is the key performance indicator • Other key metrics: delay/latency, jitter, packet loss, round trip time, call completed v/s call attempted ratio, dial tone delay Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 12
    • Root Cause and Impact Analysis Example: What Does a Link Down Really Mean for the Service Critical Event Vg01— FastEthernet 0/1 down Impact :Impacted phones: 1301, 1302, 2887.. Unable to make calls, ... Mgmt System .1.3.6.1.6.3.1.1.5.0.2 vg01 IfIndex8 Link Down Snmp-timeout – device sw0x no reachable .1.3.6.1.4.1.9.9.156.2.0.3; cm1; ccmPhoneStatusUpdate … .1.3.6.1.4.1.9.9.156.2.0.3; cm1; ccmPhoneStatusUpdate … … A VoIP WAN ... CC CUCM Unity UCCC PSTN CME/CUE Presence Probe Presentation_ID Headquarters © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Branch 13
    • Voice Statistics Analysis and Reporting Provide Historical reporting, trending and analysis for Call Volume Service Availability Quality of Service Most impacted endpoints Network utilization/call detail records Capacity Planning data like trunk utilization Device Performance utilization Troubleshooting data like percentage of unregistered devices , phones , etc Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 14
    • Simplify Deployment and Operations Provide a single consolidated view of users and their services Provide a single provisioning interface for users and their unified communications resources Ease Day 1 and Day 2 provisioning Is Policy-based, business oriented Allow permissions enabled control of access and delegation of tasks Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 15
    • Major UC-NMS Vendors Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 16
    • Cisco UCMS – An Integrated Management Suite Provisioning Manager Operations Manager Simplified Deployment and Continuous Monitoring and Configuration Fault Management Service Statistics Manager Service Monitor Historical Voice Reporting, Capacity Real Time Voice Quality Planning and Trending Monitoring and Alerting Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 17
    • Recommended Reading Source: Cisco Press Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 18
    • Swati Somani schandak@cisco.com