Transcript Data Center Design Using Avayas Fabric Connect

March 25 – 27th, 2014 І Orlando, FL
Data Center Design Using Avaya
Fabric Connect
Carl DeVincentis
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Evolution of the Data Center
Once, Campus-class was good enough
Traditional networks are
designed for north/south
traffic – ToR Switches
interconnected by the Core
or Aggregation…
Rack 1
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• 20-30 microseconds for
every hop
• Modern applications have
an average of 8
transactions
Rack 2
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Rack 3
Rack 4
Evolution of the Data Center
Traffic Patterns were Traditional
 What this meant:
Traditionally:
The North-South
to East-West ratio
has been 80:20
 Application traffic
traverses multiple Switch
hops – Access / Core /
ToR / Core / Access
 Uplinks were more
important than InterRack capacity
Top-of-Rack
Switches
Racked Servers
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“By 2014, network planners should expect
more than 80% of traffic in the Data Center’s
local area network to be between Servers”*
Your Data Center Network Is Heading for Traffic Chaos
*Gartner, 2011
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Distributed ToR
How to address the new traffic needs
Distributed ToR is
specifically designed for
east/west traffic – ToR
Switches directly
interconnected…
Web
VM
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• DToR costs just 1
microseconds switch hop
App
VM
D/B
VM
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Web
VM
5
Distributed ToR
Eliminate the bottlenecked uplinks
The future:
East-West traffic
will dominate Data
Center traffic* –
‘the new 80%’
 Now this means:
 Server-to-Server, Rack-toRack traffic dramatically
increases
 Inter-Rack capacity is now
crucial
 Traditional designs
introduce significant latency
and degrade application
performance
20%
Top-of-Rack
Switches
80%
Alternatives introduce
latency & congestion,
additional equipment,
consume more ports
Avaya delivers the
industry’s only lowlatency Distributed
ToR solution
Racked Servers
* Gartner: ‘Your Data Center is heading for traffic chaos’ – April, 2011
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Scalability with Flexibility
 Fabric Connect in the Data Center offers:
 Architectural Flexibility
 Small, Medium & Large data centers
 Centralized and distributed
 Layer 2 overlays with Layer 3 VRFs
 Interoperates with non-Avaya platforms
 Scale
 Increasing L2 scale while decreasing L2 complexity and
improving mobility
 Distributed ToR utilizes multiple 40G uplinks
 Eliminates the “choke points” of uplinks
 Handles East-West traffic natively
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Distributed Top-of-Rack
Two operational modes for true deployment flexibility
Fabric-mode DToR
Flexible Interconnect: up to 500 Switches
(16,000 10GbE Ports & 280Tbps)
Row A
Stack-mode DToR
Structured Interconnect: 8 Switches
(256 10GbE Ports & 5.12Tbps)
Row B
Row C
Row D
From small to very large – D-ToR can handle it!
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VM Evolution – The Need For Scale & Flexibility
Members of the same VM domain
must remain in the same subnet
Physical
Servers
Virtual
Servers
APPs
I-P
Per
Rack
APPs
A-H
Per
Rack
APP A
APP B
Rack 1
While application scale
& server utilization is
poor, network
complexity is simple
Rack 1
Rack 2
Server virtualization brings scale and efficiency to
applications. VMs become essentially “jailed” and
network flexibility is reduced.
VM Mobility is seriously limited. What is the alternative…?
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VM Evolution – The Need For Scale & Flexibility
Row A
Row B
Row C
Rack 1
Rack 2
Rack 3
Rack 4
 Fabric Connect provides
the VMs & therefore, the
applications a “get out of
jail free” card
 No longer bound by
physical & logical
constraints, VMs can be
moved anywhere
 This creates the flexibility
to improve availability,
simplify maintenance and
enhance application
expansion
Jailbreak..! Put your VMs where you need them..!
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Introducing the Virtual Services Platform 7000
Overview & Highlights
Highlights
 Perfect for Today
 Versatile support for 1 or 10 Gigabit
Ethernet
 Distributed Top-of-Rack delivers
Industry’s fastest virtual backplane
 Fabric networking delivered directly
to the Server
 Media Dependent Adaptor flexibility
 Lossless hardware & software
architecture
 Front-back or back-to-front cooling
 Small form-factor & energy-efficient
 Wire-speed performance
 Delivering mass 1/10 Gigabit today
 Optimizes application performance
 Future-proofed for 40/100 Gigabit &
Storage convergence (SDSN)
 Future-Ready for Tomorrow
 Seamless integration of 40/100G
 Data Centre Bridging-ready to
integrate Storage Convergence
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VSP 7000 – Avaya FI (Fabric Interconnect)
 Avaya FI (Fabric Interconnect)
provides the new DNA for your
Data Center Network.
 Enabling unparalleled
scalability and low latency
interconnect to address EastWest traffic requirements
 FI Stacking supports 2-16
switches offering up to 512
10GE ports with 10.24Tbs
Fabric.
 FI Mesh supports 4-500
switches offering up to 16,000
10GE ports with 280Tbs Fabric.
Sidney Duffy
Avaya FI – the new DNA for your Data Center Network
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VSP 7000 – Front Ports

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Data RJ-45 Console Port
24 ports of 1/10 Gigabit SFP+
MDA Slot for flexible expansion
Comprehensive array of status LEDs
Unit Master Select switch
Out of Band 10/100/1000 Management Port
USB Host Port
RJ-45 Console Port
Status LEDs
Management Port *
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1HCY14
2 port 40Gbps MDA
MDA Slot
24 SFP+ Ports
Master Switch
8 port 10GigBaseT MDA
8 port SFP+ MDA
USB Port
* Indicates future functionality
** Supports currently SFP/SFP+ & DAC (as per VSP 9000)
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VSP 7000 – Rear Ports
Modes of Operation
 A significant challenge in many data centres is the growing amount of EastWest traffic which requires higher bandwidth between adjacent racks in the
data centre.
 Each VSP 7000 features 4 Fabric Interconnect ports.
Fabric Interconnect Ports
 Fabric Interconnect can be used in two mutually exclusive modes:
 Fabric Interconnect Stacking, in which up to 8 units create a vToR (virtual Top of
Rack) or 16 units in a dToR (distributed Top of Rack) delivering up to 10Tbps
using two clusters of 8 switches.
 Rear Port Mode, in which two choices are available, Raw supporting SMLT/IST
only over rear ports and SPB for Fabric Interconnect Mesh supporting SPB and
SPB plus IST over rear ports.
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Scaling Concerns
ERS 8800
Fabric Connect
Core
VSP 9000
North-South/Core-ToR
Interconnects
VSP 7000
SDSN
Distributed
Data Center
SDSN
Distributed Top-of-Rack
Stack-mode DToR
Fabric-mode DToR
Structured Interconnect: 8 Switches
256 10GbE Ports
Flexible Interconnect: up to 200 Switches
6,400 10GbE Ports
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SDSN
Introducing Fabric Connect
Leveraging IEEE 802.1aq & IETF RFC 6329
Avaya’s optimized, end-to-end virtualized Ethernet
 Built using multiple product options, and leveraging any topology
 Configuration is simple – becoming automatically self-aware of all & best paths
 Creates an end-to-end solution that is transparent to the physical layer
 Creates a layer of end-to-end virtual Ethernet – perfect for L2 connectivity
 Also creates a flexible Routing solution – mandatory for real-world L3
interconnectivity
 Layer 2 services are deployed using simple edge-only, one-touch
provisioning
 Traditional end-to-end interconnectivity is supported by flexible Routing services
 Services easily scale and extend – delivering any-to-any connectivity
 Geo-redundant routing services ensure optimum performance and resource
utilization
 Additional services are deployed at will – a common ID links any and all endpoints
 Multi-Tenant scenarios are natively supported, leveraging the same,
simplified provisioning model
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VSP 7000 & VENA Distributed ToR
 DToR delivers at least 20x
more performance than
competing solutions
 Stack-mode scales up to 8
Switches & 5.12Tbps per vToR
 Fabric-mode scales up to 500
Switches & 280Tbps
 Reduces multi-hop serverto-server latency
 Delivers maximum efficiency
– all Server ports remain
active
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Max Interconnect Speed (Gbps)
6000
5000
4000
3000
2000
1000
0
Arista
Avaya
Brocade
Cisco
Force10
Juniper
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Fabric Interconnect Stacking
38-40
34-36
37
33
 Up/Down port pairs are 320Gbps each pair for a total of 640Gbps
per switch
 Recommended Fabric Interconnect stacking configuration for odd
and even stacks
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Fabric Interconnect Stacking (SMLT to Core)
 L2 Service and Inter-VSN routing supporting VRRP and
Back-up Master for routing North-South and off-net traffic
 100% application uptime during switch maintenance through VM
mobility
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Fabric Interconnect Stacking (SPBM to Core)
 Allows for SPB attached switch clusters and LAG
attached servers
 100% application uptime during switch maintenance through use
of SMLT
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VSP 7000 vToR (Virtual ToR)
Fabric Interconnect Stacking Reference
ToR
32
Servers
per Rack
Non-Resilient Server connections 32 x10G ports per Rack / 256 10GE ports per Pod
5Tbps East-West Bandwidth
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VSP 7000 dToR (distributed ToR)
Fabric Interconnect Stacking Reference
ToR
Cluster 1
`
ToR
IST
Cluster 2
32
Servers
per Rack
Dual
Attached
Fully Resilient 32 x10G ports per Rack / 512 10GE ports per Pod
10Tbps East-West Bandwidth
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Fabric Interconnect Stacking Benefits
 Allows for Fault-tolerant or Load sharing NIC teaming into stack
 Up to 8 units create a vToR (virtual top-of-rack) delivering up to 5Tbps using
two FI cables in parallel between switches for a total of 256 10GE ports
 Up to 16 units in a dToR (distributed top-of-rack) delivering up to 10Tbps
using two clusters of 8 switches for up to 512 10GE ports
 High bandwidth and low latency between servers (2.1µs – 5.3us)
 Highly resilient stacking technology with scalable uplinks
 Flexibility to spread across multiple data cabinets (100s of servers)
 Ideal for Grid Computing/High-Performance Computing Solutions
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VSP 7000 Fabric Interconnect
Rear Port Speeds
 The 4 physical Fabric Interconnect ports provide different bandwidth
capabilities (see rear-ports feature for more details).
 Three different colours are used to represent the different capabilities.
Optimum performance will be achieved when ports of the same throughput
are connected to one another.
38-40
34-36
37
33
Colour Physical Fabric Interconnect Port
Throughput
Number of
ports in LAG
Black FI Up (right) Top
240Gbps
3 x 40G
Red
FI Down (left) Top
240 or 160Gbps
3 x 40G (raw) or
2 x 40G (SPB)
Blue
FI Bottom (both Up (right) & Down(left))
80Gbps
1 x 40G
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Fabric Interconnect Mesh
 Rear Port Mode Standard
 SPB is not supported when the rear port mode is set to standard (raw) mode
 The IST must be made up of a minimum of two ports, i.e. use both rear blue ports
or you could use either the red or black rear ports as each has 3 ports each
 LACP must be disabled prior to enabling IST or SMLT using the rear ports
 SMLT square and triangle topologies are supported in rear port raw mode; SMLT
full mesh is not supported
 Rear Port Mode SPB
 Only SPB L2VSNs are supported
 For routing, the L2VSN must be terminated on at least one VSP 9000, VSP 4000,
or ERS 8800 that either has IP Shortcuts or L3VSN enabled; it is recommended to
terminate the L2VSN on a second VSP 9000, VSP 4000, or ERS 8800 and use
VRRP
 The IST must be made up of at minimum two port, i.e. use both rear port blue
ports or you could use either the red rear ports (2 ports) or black rear ports (3
ports)
 Please note that one of the red ports is used as a SPB loopback port, hence,
the number of ports is reduced by one
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Fabric Interconnect – Rear Port Mode Standard
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Fabric Interconnect – Rear Port Mode SPB
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Fabric Interconnect – Rear Port Mode SPB
Switch stacking and clustering with SPB supported in 10.3
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Recommended ISIS Metrics
Link Speed
(Gbps)
1
2
10
20
40
80
100
120
Interface Type
ISIS L1-metric
Native Ethernet
MLT bundle
Native Ethernet
MLT bundle
Native Ethernet / FI Blue
MLT bundle / FI Red
Native Ethernet
MLT bundle / FI Black
350
175
35
17
5 (9 if separate LAG group)
5 (5 if separate LAG group)
5
5 (3 if separate LAG group)
3
5
3
5
3
5
5
5
3
9
3
5
3
9
9
3
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9
5
5
3
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Rear Port Mode SPB – Inter Rack Connections
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Fabric Interconnect Mesh Benefits
 FI mesh SPB scalability from 4 to 480 switches




Providing low latency fabric.
Fabric is scalable up to 262.5Tbps.
Extensible up to 15,360 10GE ports.
Designed to enable either 24/32/48/64 10GE ports per rack
 Fabric Interconnect ports interconnect each VSP7000:
 Can use mix of different Fabric Interconnect cable lengths.
 Optimum performance will be achieved when the same color designated ports are
connected to one another
 Rear port
 The rear ports provide up 640Gbps of connectivity
 LACP and VLAN tagging is automatically enabled for the rear ports
 The 4 physical Fabric Interconnect ports provide different bandwidth capabilities
(see rear-ports feature for more details).
 Three different colors are used to represent the different capabilities. Optimum
performance will be achieved when the same colored ports are connected to one
another.
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Putting it all together
Active/Active LAG
dToR with SMLT and SPB
Terminate VSP 7000 L2VSN
on any of these nodes and enable
IP Shortcuts for routing to the
rest of the network
Add L2VSN between
Data Center #1 and
Data Center #2 for
vMotion or other
shared services
Terminate the same L2VSN on a
second node and enable VRRP
Backup-Master for active/active
resilience
FI Mesh with SMLT and
rear port SPB
Active/Active LAG
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In Summary
 Avaya has created a solution that leapfrogs the rest of
the industry.




Solves the East-West DC traffic problems
vToR and dToR provides for massive scale
Eliminates traditional network limitations (STP & VLANs)
Allows FULL VM mobility without sacrificing performance
 Additional benefits:
 Provides PCI compliance without the high cost & expense
 Improves Disaster Recovery to Business Continuance.
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