SLA para aplicaciones en redes WAN. Alvaro Cayo Urrutia
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1 SLA para aplicaciones en redes WAN Alvaro Cayo Urrutia
2 Quién es FLUKE NETWORKS? Enterprise SuperVision (ESV) Soluciones portátiles de prueba y análisis LAN y WAN distribuidas Infrastructure SuperVision (ISV) Certificación y troubleshooting de cables de cobre y fibra para Voz-Data-Video Outside Plant SuperVision (OSV) Administración y pruebas proactivas y reactivas en cables de planta externa
3 Antes, algunas preguntas Qué significa SLA? Quienes ofrecen SLA en TI? Para que sirve y que puede medir? Por qué SLA en aplicaciones de red? Por qué en la red WAN?
4 A Typical Multi-tier Business Application End User Router Firewall Load Balancer Switch Switch Switch Internet or Intranet DHCP Server Single Sign-on Server Web Servers HTTPS Challenges in Application Management: Many points of failure Many different protocols Geographically diverse Many groups are responsible for the infrastructure network, application, server, client, security May involve either custom or 3rd party applications Application Servers HTTP Database Servers Oracle SQL
5 Current Methods for N-Tier App Visibility Protocol Analysis Aggregated Statistics Where do I probe? What do I look for? Tons of packets to wade through Capture buffer fills before I have the data I need How do I capture the problem while it is occurring? Can t see individual client usage Aggregated time intervals mask performance issues Doesn t facilitate drill-down troubleshooting 682 packets Submit Payment Your payment has been received HTTPS Request HTTP Request HTTPS Response HTTP Response Web Server SQL Update Account Info SQL App Server 76 packets 38 packets 145 packets Update Audit Log Database Servers
6 Active versus Passive Measurement Passive measurement: no new packets are introduced and the existing network traffic is leveraged for performance measurements (ie: NetFlow, Visual Uptime, Protocol Expert, sniffer, ethereal) Active measurement: packets are created specifically for performance measurements (ie: ping testing, IP SLA, Application Performance Analisis)
7 Modelo de analisis con sondas Remote Locations WAPMS SELECT Headquarters DS3 SELECT OC3 WAPMS WIC SELECT T1 SELECT 56k WAN SELECT DS3 Data Center E1 SELECT Operations Center SELECT SELECT SELECT Web-Based GUI SELECT
8 Select individual CoS settings Track service level metrics by individual classes
9 Breakdowns individual call performance Identify VoIP calls by quality
10 Track daily summary of performance Identify what factors are causing degradation Track performance by site
11 Modelo con APPLICATION PERFORMANCE APPLIANCE Visual Performance Manager Branch Office 1 WAN Subnet 1 Subnet 2 Data Center Application Performance Appliance(s) Branch Office 2 VPM Server Subnet 3 Span Span DHCP Server Single Sign-on Server Web Servers Application Servers Database Servers Span Subnet 4
12 Individual Client/Application Performance Client vs. Site performance view for an individual client End User Response Time breakdown for an individual client Transaction count and Data Volume for an individual client Servers accessed by client
13 Client Web 4 Seconds DB TCP Packets Web Packets DB Packets
14 Instant Transaction Report End User Response Time Breakdown for individual client/server transactions Usage metrics such as bytes sent and received as well as packets sent and received Client/Server transaction detail (Request/Response)
15 NetFlow Tracker All of the flows, all of the time: Not Top-N limited (Top-N-y) Keep real time data at one minute resolution indefinitely User-defined data retention and granularity Sweep and swoop from high-level summaries right down to individual flows 100% web-based, fully URL controllable Supports all major flow types Available as an appliance or software only NetFlow Tracker
16 NetFlow Tracker Reports Available Reports HTML Presentation Engine Real-Time Database Long-Term Databases Processing Engine Collection Engine NetFlow Exports SNMP Source Addresses Destination Addresses Address Pairs Protocols Source Ports Destination Ports Source Applications Destination Applications Recognized Applications Source Endpoints Destination Endpoints Server-Client Sessions Client-Server Sessions Conversations Bi-Directional Reports Type of Service TOS Differentiated Services AS Pairs Source Networks Destination Networks Network Pairs In Interfaces Out Interfaces Next Hops Source Address Dissemination Destination Address Popularity Totals *Traffic Classes *Identified Applications VPN (Interface Grouping) * Vendor Specific reports
17 Scenario of use - QoS troubleshooting, trending analysis Verify Quality of Service setting and load by DiffServe or ToS Drill down into each QoS queue to verify users and applications settings View Layer 7 Applications and Traffic Classes
18 Scenario of Use - Planning What IP address pairs are the heaviest network users What Apps are using what ToS & what Bandwidth What is the Next Hop for each conversation? What Applications are using what bandwidth & who is using them?
19 ResponseWatch Can monitor any Cisco IP SLA test type Reporting presentation by response times and SLA compliance Internal and External Service Level Agreement monitoring Performance visibility for business-critical applications Network performance monitoring Network operation troubleshooting IP service (e.g., VoIP) network health readiness or assessment Edge-to-edge network availability monitoring Alerting (Syslog output) 100% web enabled (no console) ResponseWatch
20 Cisco IOS IP Service Level Agreements: Cisco solution that assures IP service levels, proactively verifies network operation, and accurately measures network performance Comprehensive hardware support Committed Cisco partner support Cisco IOS Software, the world s leading network infrastructure software Enterprise and Small Medium Business Understand Network Performance & Ease Deployment Access Enterprise Backbone Service Providers Verify Service Levels Verify Outsourced SLAs Enterprise Premise Edge Cisco IOS Software Measure and provide SLAs Service Provider Aggregation Edge Service Provider Core
21 Cisco IOS IP SLAs Uses and Metrics *DATA TRAFFIC *VoIP *SERVICE LEVEL AGREEMENT *AVAILABILITY **STREAMING VIDEO REQUIREMENT Minimize Delay, Packet Loss Verify QoS Minimize Delay, Packet Loss, Jitter Measure Delay, Packet Loss, Jitter One-way Connectivity testing Minimize Delay, Packet Loss IP SLA MEASURMENT Connectivity tests to IP devices Jitter Packet loss Latency Jitter Packet loss Latency per QoS Jitter Packet loss Latency MOS Voice Quality Score Jitter Packet loss Latency One-way Enhanced accuracy NTP
22 Response Watch Graphical Executive Summaries
23 Quieres analizar tus aplicaciones de red? Demo IP SLA: Demo NETFLOW:
24 Gracias Alvaro Cayo Urrutia /
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