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BRKDCN-2670 Day2 operations for Datacenter VxLAN EVPN fabrics.pdf
1.
#CiscoLive
2.
#CiscoLive Naresh Veesamshety Technical Leader
– Datacenter Switching Marketing BRKDCN-2670 Day2 operations for Datacenter VxLAN EVPN fabrics
3.
© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive Enter your personal notes here Cisco Webex App 3 Questions? Use Cisco Webex App to chat with the speaker after the session Find this session in the Cisco Live Mobile App Click “Join the Discussion” Install the Webex App or go directly to the Webex space Enter messages/questions in the Webex space How Webex spaces will be moderated by the speaker until June 9, 2023. 1 2 3 4 3 https://ciscolive.ciscoevents.com/ciscolivebot/#BRKDCN-2670 © 2023 Cisco and/or its affiliates. All rights reserved. Cisco Public BRKDCN-2670
4.
#CiscoLive © 2023
Cisco and/or its affiliates. All rights reserved. Cisco Public Agenda • 3 Operational Challenges in Modern Data Centers • 3 Traditional Workflows in solving the Operational Challenges • 3 Transformations required to solve the Operational Challenges • 3 Evolutions in the Cisco Nexus Portfolio • 3 Operational Use-Cases with Nexus Dashboard Insights 4 BRKDCN-2670
5.
3 Operational Challenges
in Modern Data Centers
6.
© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive Configuration Complexity! Troubleshooting Performance Monitoring Operational Challenges in VXLAN EVPN Networks 6 BRKDCN-2670
7.
© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 7 BRKDCN-2670 • Are you sure you haven't misconfigured ? • Are you sure you did not miss necessary configs ? Misconfigured/Missed config • Is you network configured in the best possible way ? • Did not know about Cisco recommended best practice configuration! Best Practices • Still seeing problems ? • Have you checked if there was a known bug or a PSIRT ! Hit a bug or PSIRT Configuration Complexity 1 UNDERLAY OVERLAY Physical Interfaces NVE/VTEP/Loopback Routing Protocols MP-BGP/EVPN/Multisite VLAN/VRFs L2VNI/L3VNI
8.
© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 8 BRKDCN-2670 • Are you sure you haven't misconfigured ? • Are you sure you did not miss necessary configs ? Misconfigured/Missed config • Is you network configured in the best possible way ? • Did not know about Cisco recommended best practice configuration! Best Practices • Still seeing problems ? • Have you checked if there was a known bug or a PSIRT ! Hit a bug or PSIRT Configuration Complexity 1 You can’t RESOLVE what you don’t KNOW .. You can’t KNOW what you don’t SEE
9.
© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive Operational Challenges in VXLAN EVPN Networks 9 BRKDCN-2670 Configuration Complexity! Troubleshooting Performance Monitoring
10.
© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 10 BRKDCN-2670 • Control plane validation of Overlay and Underlay • Data plane validation of Overlay and Underlay • Determine which node dropped the traffic • Figure out the drop reason • Attribute the drop reason to network problem Complete unreachability Between servers (E-W traffic) Between users and applications (N-S traffic) 171.1.1.101 181.2.1.121 192.168.1.10 Troubleshooting 2
11.
© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive Operational Challenges in VXLAN EVPN Networks 11 BRKDCN-2670 Configuration Complexity! Troubleshooting Performance Monitoring
12.
© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive Performance Monitoring - Network 12 BRKDCN-2670 171.1.1.101 181.2.1.121 Network Performance Latency measurement Intermittent microbursts Congestion detection 20ms • How do you prove network innocence ? • How do you learn about intermittent microbursts in the network ? • How do you learn about perennial congestion in the network ? 3
13.
3 Traditional Workflows
in solving the Operational Challenges
14.
© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 16 BRKDCN-2670 Traditional Workflow in solving Operational Challenges 1 • CPU intensive and slow due to Polling/Pull collection. • Possible loss of data during transport/high CPU/rollovers. • Multiple OAM sources to get data. Data Collection
15.
© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 17 BRKDCN-2670 2 • Per-node/Per-data-model data stacks. • Unstructured data built for human readability. • Hard to operationalize. Data Consumption Traditional Workflow in solving Operational Challenges
16.
© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 18 BRKDCN-2670 3 • No tool chain that can understand all the disparate data. • Collected data has no common format. • Output of one node needs to be correlated manually to the input of the next node. Data Correlation Traditional Workflow in solving Operational Challenges
17.
3 Transformations required
to solve the Operational Challenges
18.
© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 21 BRKDCN-2670 Model Driven Telemetry • PUSH model – Reduce CPU request/response overhead. • Data-model driven consistent formats (yang/openconfig) • Extend to hardware telemetry. • Large data compressed by GPB encoding. • Minimize transmission delay of data on wire. • Ability to stream high-resolution data. • Single OAM defining data to collect Model Driven Telemetry SNMP Screen Scraping ICMP Syslogs Transform Data Collection Model 1
19.
© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 22 BRKDCN-2670 Single data lake architecture • Multiple sources/nodes stream to a single data lake. • Uniform structure makes data ready for consumption. • Reduce data sprawling and loss of data. Pub/Sub data consumption architecture • Allows for the distribution of various functions of an application into micro- services. • A service can subscribe to only data that it needs. • Provides the flexibility to offload resource-intensive computations from switches to application services. Transform Data Consumption 2
20.
© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 23 BRKDCN-2670 Correlation Algorithms • Structured data can help ‘Machine Learning’ algorithms replace manual correlation. • Multiple services can work in tandem to provide deeper insights. • Identify cause and effects to reduce MTTR. • Insights can derive actionable resolutions. Transform Data Correlation 3
21.
3 evolutions in
the Cisco Nexus Portfolio
22.
© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive NX-OS Model Driven Telemetry 25 BRKDCN-2670 Capability: Stream telemetry data for both control and data plane. Data Source: Supports Yang, DME and NX-API model. Flexibility: Support both sample-based and event- based telemetry. Encoding: Support for GPB, GPB-compact, JSON and XML encoding. Transport Protocol: Support for UDP, HTTP and gRPC transport. Enhanced Data Collection Model 1
23.
© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive Analogy of a similar evolution! 26 BRKDCN-2670 Data Collection = Data Processing = Data Visibility =
24.
© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive Analogy of a similar evolution! 27 BRKDCN-2670 Data Collection = Data Processing = Data Visibility = All we needed was one powerful PLATFORM that could help us do it all!
25.
© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive Nexus Dashboard to the rescue! 28 BRKDCN-2670 Private Cloud Public Cloud Fabric Discovery Orchestrator Insights Data Broker Fabric Controller SAN Controller NDFC 3rd Party apps Simple to Consume ; Simple to Automate 2
26.
© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive Nexus Dashboard to the rescue! 29 BRKDCN-2670 Private Cloud Public Cloud Fabric Discovery Orchestrator Insights Data Broker Fabric Controller SAN Controller NDFC 3rd Party apps Simple to Consume ; Simple to Automate 2
27.
© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive Nexus Dashboard Insights to the rescue! 30 BRKDCN-2670 Configs Intent Infra state Intent Configs Infra state Data enrichment Complex correlation Baselines Modeling Nexus Dashboard Insights Software and hardware telemetry {REST:API} Syslog Email Kafka Nexus Dashboard VCenter AppDynamics DNS Server
28.
© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive Nexus Dashboard Insights to the rescue! 31 BRKDCN-2670 Configs Intent Infra state Intent Configs Infra state Data enrichment Complex correlation Baselines Modeling Nexus Dashboard Insights Software and hardware telemetry {REST:API} Syslog Email Kafka Nexus Dashboard VCenter AppDynamics DNS Server Cisco Digitized Metadata
29.
© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive Nexus Dashboard Insights to the rescue! 32 BRKDCN-2670 Configs Intent Infra state Intent Configs Infra state Data enrichment Complex correlation Baselines Modeling Nexus Dashboard Insights Software and hardware telemetry {REST:API} Syslog Email Kafka Nexus Dashboard VCenter AppDynamics DNS Server Cisco Digitized Metadata Simple to Correlate 3
30.
© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive Nexus Dashboard Insights to the rescue! 33 BRKDCN-2670 Configs Intent Infra state Intent Configs Infra state Data enrichment Complex correlation Baselines Modeling Nexus Dashboard Insights Software and hardware telemetry {REST:API} Syslog Email Kafka Nexus Dashboard VCenter AppDynamics DNS Server Cisco Digitized Metadata Simple to Correlate 3
31.
© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive Nexus Dashboard Insights – Feature set 34 BRKDCN-2670 Assurance and Compliance Advisory and Maintenance Visibility and Troubleshooting PSIRT notification Field notices Upgrade assist Advisories TAC assist Email notifications One View Flow analytics Connectivity analysis Microburst detection AppDynamics integration Capacity planning Endpoint analytics Topology view Delta analysis compliance Configuration assurance Explorer
32.
3 Operational Challenge
Use- Cases with Nexus Dashboard Insights
33.
Configuration Assurance and Information
Awareness 1
34.
© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 37 BRKDCN-2670 Simplifying : Information you need NXOS Version: 9.3(5) How Am I supposed to know PSIRT Alert Known Bug Best practices L1 L2 L3 L4 S1 S2 BL2 BL1 ToR1 1
35.
© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 38 BRKDCN-2670 Simplifying : Information you need NXOS Version: 9.3(5) How Am I supposed to know PSIRT Alert Known Bug Best practices Cisco Digitized Metadata NDI • Best practices updates • PSIRTs, FNs, EOS/EOL • Software release notifications • Digitized signatures of known defects L1 L2 L3 L4 S1 S2 BL2 BL1 ToR1 1
36.
© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 39 BRKDCN-2670 Simplifying : Making aware of what you need L1 L2 L3 L4 S1 S2 BL2 BL1 ToR1 NXOS Version: 9.3(5) PSIRT Alert Known Bug Best practices Get Notified ! 1
37.
© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 40 BRKDCN-2670 Simplifying : Making aware of what you need 1
38.
© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 41 BRKDCN-2670 Simplifying : Making aware of what you need PSIRT Fixed Bug Fixed Best Practice Compliant Cisco Recommends : Upgrade 9.3(5) -> 9.3(10) L1 L2 L3 L4 S1 S2 BL2 BL1 ToR1 1
39.
© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 42 BRKDCN-2670 Assurance of Intent L1 L2 L3 L4 S1 S2 BL2 BL1 ToR1 Host A 1
40.
© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 43 BRKDCN-2670 Assurance of Intent L1 L2 L3 L4 S1 S2 BL2 BL1 ToR1 1
41.
© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 44 BRKDCN-2670 Assurance of Intent 1
42.
Improve: Troubleshooting Efficiency 2
43.
© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 46 BRKDCN-2670 Network is all setup! WAN 50.1.55.1 181.1.1.101 L1 L2 L3 L4 ToR1 S1 S2 BGW1 BGW2 Remote Edge DC
44.
© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 47 BRKDCN-2670 WAN 50.1.55.1 181.1.1.101 L1 L2 L3 L4 ToR1 S1 S2 BGW1 BGW2 Remote Edge DC 50.1.55.0 50.1.55.0 Network is all setup! A good day !
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© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 48 BRKDCN-2670 WAN 50.1.55.1 181.1.1.101 L1 L2 L3 L4 ToR1 S1 S2 BGW1 BGW2 Remote Edge DC 50.1.55.0 50.1.55.0 Bad things happen!
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© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 49 BRKDCN-2670 Simplify : Troubleshooting WAN 50.1.55.1 181.1.1.101 L1 L2 L3 L4 ToR1 S1 S2 BGW1 BGW2 Remote Edge DC 50.1.55.0 50.1.55.0 But now I know what happened!! 2
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© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 50 Session ID But now I know what happened!!
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© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 51 BRKDCN-2670 E-W traffic is fine .. Life is good! 131.101.14.162 131.101.1.102
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© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 52 BRKDCN-2670 We can’t talk! 131.101.14.162 131.101.1.102
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© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 53 BRKDCN-2670 Hosts complained - We can’t talk! 131.101.14.162 131.101.1.102 Hey Network Guy..My applications can’t talk. Can you help ??
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© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 54 BRKDCN-2670 Proactive Drop Detection 131.101.14.162 131.101.1.102
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© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 55 BRKDCN-2670 Proactive Drop Detection 131.101.14.162 131.101.1.102 Traffic drops can be proactively detected with reasons for drop 2
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© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 56 BRKDCN-2670 On-Demand Troubleshooting 131.101.14.162 131.101.1.102 2
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© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 57 BRKDCN-2670 131.101.14.162 131.101.1.102 Simplify: On-Demand Troubleshooting 2
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© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 58 BRKDCN-2670 Simplify: On-Demand Troubleshooting 2
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© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 59 BRKDCN-2670 Simplify: On-Demand Troubleshooting 2
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© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 60 BRKDCN-2670 Simplify: On-Demand Troubleshooting 2
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© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 61 BRKDCN-2670 Simplify: On-Demand Troubleshooting 2
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© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 62 BRKDCN-2670 Simplify: On-Demand Troubleshooting 2
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© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 63 BRKDCN-2670 Fix it and reassure J 2
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Simplify : Network Performance
Monitoring 3
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© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 66 BRKDCN-2670 Measuring Network Performance: The Paradox ! Hey Network Guy..My application became too slow. Is it the network ?? 131.102.13.129: 443 131.104.2.101: 49152
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© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 67 BRKDCN-2670 131.104.2.101: 49152 131.102.13.129:443 How do we Measure Network Latency ?
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© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 68 BRKDCN-2670 131.104.2.101: 49152 131.102.13.129:443 Simplify: Measuring Network Latency Be notified of an outlier! Ah.. I can now measure network performance of the application traffic 3
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© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 69 BRKDCN-2670 Simplify: Measuring Network Latency 3
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© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 70 BRKDCN-2670 Simplify: Measuring Network Latency 3
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© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 71 BRKDCN-2670 172.16.113.118 172.16.112.98 Microburst detection when it happens!
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© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 72 BRKDCN-2670 172.16.113.118 172.16.112.98 Microbursts happen!
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© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 73 BRKDCN-2670 172.16.113.118 172.16.112.98 Microburst detected! 3
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© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 74 BRKDCN-2670 Simplifying : Microburst detection 3
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© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 75 BRKDCN-2670 Disjoint Network Entities SNMP polling/Logs/CLI Outputs Siloed Data Stacks Manual Interpretations Broken Insights/No Correlation No End-to-End Perspective Network/Nodes Unification Streaming Telemetry Network unified workflow Machine Driven Correlation Actionnable Insights End-to-End Network Visibility Operation possibilities in the Data Center 1
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© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive Fill out your session surveys! Attendees who fill out a minimum of four session surveys and the overall event survey will get Cisco Live-branded socks (while supplies last)! 76 BRKDCN-2670 These points help you get on the leaderboard and increase your chances of winning daily and grand prizes Attendees will also earn 100 points in the Cisco Live Challenge for every survey completed.
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© 2023 Cisco
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Thank you #CiscoLive
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© 2023 Cisco
and/or its affiliates. All rights reserved. Cisco Public #CiscoLive 79 Gamify your Cisco Live experience! Get points for attending this session! Open the Cisco Events App. Click on 'Cisco Live Challenge’ in the side menu. Click on View Your Badges at the top. Click the + at the bottom of the screen and scan the QR code: How: 1 2 3 4 79 © 2023 Cisco and/or its affiliates. All rights reserved. Cisco Public BRKDCN-2670
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