Successfully Interconnecting Data Centers
-
Upload
cisco-canada -
Category
Technology
-
view
321 -
download
1
Transcript of Successfully Interconnecting Data Centers
![Page 1: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/1.jpg)
![Page 2: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/2.jpg)
Successfully Interconnecting Data Centers
Ronnie Scott
Technology Solutions Architect
Sept 2014
![Page 3: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/3.jpg)
Cisco Confidential 4 © 2013-2014 Cisco and/or its affiliates. All rights reserved.
The Intent
The Reality
Delivering On The Promise
Agenda
4
![Page 4: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/4.jpg)
Cisco Confidential 5 © 2013-2014 Cisco and/or its affiliates. All rights reserved.
![Page 5: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/5.jpg)
Cisco Confidential 6 © 2013-2014 Cisco and/or its affiliates. All rights reserved.
Data Center B Data Center A
Layer 2 vs Layer 3 Interconnects Layer 3
Subnet A
10.0.1.0
Subnet B
10.0.2.0
IP Readdressing
Required
![Page 6: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/6.jpg)
Cisco Confidential 7 © 2013-2014 Cisco and/or its affiliates. All rights reserved.
Virtual Data Center
Layer 2 vs Layer 3 Interconnects Layer 2
Subnet A
10.0.1.0
Subnet A
10.0.1.0
NO IP Readdressing
Required
Tunnel
![Page 7: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/7.jpg)
Cisco Confidential 8 © 2013-2014 Cisco and/or its affiliates. All rights reserved.
Layer 1, 2, or 3 Transport
• Dark Fiber
• Lambda (CWDM / DWDM)
Layer 1 Transport
8
• Cost
• Distance
• Optics
• Administration
![Page 8: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/8.jpg)
Cisco Confidential 9 © 2013-2014 Cisco and/or its affiliates. All rights reserved.
• MPLS (EoMPLS)
• Metro Ethernet
• Wireless
Layer 1, 2, or 3 Transport Layer 2 Transport
9
• Latency
• Bandwidth
• Frame Size
• Spanning Tree
![Page 9: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/9.jpg)
Cisco Confidential 10 © 2013-2014 Cisco and/or its affiliates. All rights reserved.
• Any WAN Service
Layer 1, 2, or 3 Transport Layer 3 Transport
10
• Latency
• Bandwidth
• Frame Size
• Tunneling
![Page 10: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/10.jpg)
Cisco Confidential 11 © 2013-2014 Cisco and/or its affiliates. All rights reserved.
Virtual Data Center
Multiple Site Meshes
11
![Page 11: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/11.jpg)
Cisco Confidential 12 © 2013-2014 Cisco and/or its affiliates. All rights reserved.
![Page 12: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/12.jpg)
Cisco Confidential 13 © 2013-2014 Cisco and/or its affiliates. All rights reserved.
Spanning Tree
• Loop Flooding
• TCN Flooding
• Broadcast/ARP Flooding
• Slow Convergence Time
• Interface Blocking
13
![Page 13: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/13.jpg)
Cisco Confidential 14 © 2013-2014 Cisco and/or its affiliates. All rights reserved.
Virtual Data Center
Spanning Tree Example Network Flooding
14
![Page 14: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/14.jpg)
Cisco Confidential 15 © 2013-2014 Cisco and/or its affiliates. All rights reserved.
Split Brain
• Potential Data Corruption
• Incorrect DR Take Over
• Loss Of Network State
• Loss Of Application Tiers
15
![Page 15: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/15.jpg)
Cisco Confidential 16 © 2013-2014 Cisco and/or its affiliates. All rights reserved.
Virtual Data Center
Split Brain Example Data Inconsistency
16
Branch 1 Branch 2
![Page 16: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/16.jpg)
vPC
DC Edge
Internal DC Zone(s) DC Core VDC (Routed)
DC Aggregation Layer VDC
Compute Access Layer
FW CLUSTER
Entanglement
HOT vMotion!
in
in
out
![Page 17: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/17.jpg)
Cisco Confidential 18 © 2013-2014 Cisco and/or its affiliates. All rights reserved.
Asymmetric Routing
• Traffic Management
• Network Service State Issues
• Troubleshooting
• Latency/Performance
18
![Page 18: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/18.jpg)
Cisco Confidential 19 © 2013-2014 Cisco and/or its affiliates. All rights reserved.
Virtual Data Center
Assymetric Routing Example Loss Of State
19
Branch
![Page 19: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/19.jpg)
20
![Page 20: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/20.jpg)
21
![Page 21: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/21.jpg)
Cisco Confidential 22 © 2013-2014 Cisco and/or its affiliates. All rights reserved.
![Page 22: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/22.jpg)
23
![Page 23: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/23.jpg)
Cisco Confidential 24 © 2013-2014 Cisco and/or its affiliates. All rights reserved.
Virtual Data Center
• Physically Diverse Paths
• Physically Separate Devices
• No Shared Fate Domain
Best Practice Dual Redundant and Diverse Paths
24
![Page 24: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/24.jpg)
Cisco Confidential 25 © 2013-2014 Cisco and/or its affiliates. All rights reserved.
Virtual Data Center
• VPC
• OTV
• VXLAN
Best Practice Avoid Spanning Tree
25
• FabricPath
• NVGRE
• MPLS
![Page 25: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/25.jpg)
Cisco Confidential 26 © 2013-2014 Cisco and/or its affiliates. All rights reserved.
Virtual Data Center
• Broadcast Suppression
• ARP Filtering
Best Practice Contain Fault Domain
26
• L2 Routing (ISIS)
• Gateway Management
![Page 26: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/26.jpg)
Cisco Confidential 27 © 2013-2014 Cisco and/or its affiliates. All rights reserved.
Symmetric Routing - Inbound
• Explicit Routes
• NAT / Gateway Devices
• LISP
• DNS
• IP Readdressing
27 27
![Page 27: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/27.jpg)
Cisco Confidential 28 © 2013-2014 Cisco and/or its affiliates. All rights reserved.
Symmetric Routing - Outbound
28
• Weighted Routing
• Default Gateway Prioritization
• NAT / Gateway Devices
![Page 28: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/28.jpg)
Cisco Confidential 29 © 2013-2014 Cisco and/or its affiliates. All rights reserved.
Optimal Routing
• GSLB
• SLB Clustering
• FW Clustering
• LISP
29 29
![Page 29: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/29.jpg)
Cisco Confidential 30 © 2013-2014 Cisco and/or its affiliates. All rights reserved.
Virtual Data Center
Latency Ensuring Synchronization Completion
30
• Storage Replication
• Application Synchronization
• Virtual Machine Migration
![Page 30: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/30.jpg)
Cisco Confidential 31 © 2013-2014 Cisco and/or its affiliates. All rights reserved.
Virtual Data Center
Jumbo Frames Ensuring Packet Delivery
31
• No PMTUD
• No “Could Not Fragment”
• Dramatic IP Performance Degadation
101100110…
![Page 31: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/31.jpg)
www.cisco.com/go/vmdc
32
![Page 32: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/32.jpg)
Cisco Confidential 33 © 2013-2014 Cisco and/or its affiliates. All rights reserved.
![Page 33: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/33.jpg)
Cisco Confidential 34 © 2013-2014 Cisco and/or its affiliates. All rights reserved.
![Page 34: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/34.jpg)
Cisco Confidential 35 © 2013-2014 Cisco and/or its affiliates. All rights reserved.
35
![Page 35: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/35.jpg)
Cisco Confidential 36 © 2013-2014 Cisco and/or its affiliates. All rights reserved.
36
![Page 36: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/36.jpg)
Cisco Confidential 37 © 2013-2014 Cisco and/or its affiliates. All rights reserved.
37
![Page 37: Successfully Interconnecting Data Centers](https://reader034.fdocuments.net/reader034/viewer/2022042701/55a18fd41a28ab262d8b46b2/html5/thumbnails/37.jpg)
Thank you.