DXS-3600 Series
Sales Guide
HW: B1
D-Link HQ
July, 2012
D-Link confidential
Contents
Trend of Data Center
Target Application
Product Overview
Hardware Overview
Expansion Modules
Accessory
Software Overview
Competitive Comparison & Analysis
Art of War
Appendix (Technology Brief)
Trend of Data Center
Virtualization
– Improve Cost-Efficiency, space utilization and agility.
– Reduce IT complexity.
Higher Bandwidth Requirement for Uplink
– 10G ToR(Top of Rack) switches to surge to $1B in sales in year 2011
– 40GbE will drive earlier demand for 100GbE uplinks
Consolidation & High Reliability
– Data Center Bridging (DCB) protocols to support Lossless Ethernet Links
 802.1Qbb PFC (Priority-based Flow Control)
 802.1Qaz ETS (Enhanced Transmission Selection)
 802.1Qau QCN (Congestion Notification)
– Consolidation of Fibre Channel & Ethernet
Energy Saving
– Lower power consumption
Target Application
Data Center Top-of-Rack (ToR) Switch:
– High performance & reliability, low latency, special cooling system design and Data
Center Bridging(DCB) features are required to Data Center
– Support up to 960G switching capacity, 714Mpps forwarding rate, less than 1.93 μs
latency(DXS-3600-32S)
– Virtual/Physical stacking ensures the reliability and enlarges the bandwidth; DXS-3600
supports 480G physical stacking bandwidth.
– 1+1 hot swappable, load sharing redundant PSU; 2+1 hot swappable fan try with
smart fan design.
– Front-to-back air flow.
Enterprise Private
Cloud
CORE
RG-S12000
40G Fiber
10G Fiber
Stacking
Trunking
DGS-3420
VSU
RG-S12000
ToR
DXS-3600
Target Application
Aggregation Switch of Enterprise/ Campus
– DXS-3600 supports 40G uplink to core and 10G downlink to access
– High switching capacity with cut through forwarding design to speed up the
transmission
– L3 routing protocols inside the EI image can build up the dynamic L3 network for
enterprise/campus’ core
Enterprise
Intranet
Enterprise
Private Cloud
CORE
RG-S12000
RG-S12000
Aggregation
DXS-3600
DXS-3600
40G Fiber
10G Fiber
Stacking
Trunking
Access
DGS-3420
DGS-3420
L1
L2
……..
Ln
Target Application
Core Switch of SMB/SME
– DXS-3600-16S, an ideal solution to fulfill SMB/SME requirement which needs low
density of 10G port and low total cost of ownership(TCO)
– High switching capacity with cut through forwarding design to speed up the
transmission
10G Fiber
1G Ethernet
Trunking
DXS-3600-16S
VRRP
DXS-3600-16S
DXS-3600-16S
VRRP
DGS-3420
DGS-3420
DGS-3420
DGS-3420
Gigabit Clients
Small SMB
DGS-3420
DGS-3420
DGS-1210
Gigabit Clients
Gigabit Clients
Medium SMB
Small Enterprise
Target Application
Aggregation Switch of Carrier’s MPLS Core
– Support variety port speeds, 10G or 40G, to fulfill aggregation requirement
– High switching capacity with cut through forwarding design to speed up the
transmission
– Support MPLS and L3 routing protocols to offload effort of MPLS Core
DXS-3600
DXS-3600
Service Provider
Access
DXS-3600
Service
Provider
Core
Service Provider
Access
DXS-3600
Product Overview
Product Configuration
DXS-3600-16S
Port Configuration
DXS-3600-32S
8 fixed SFP+ with 1 expansion module
24 fixed SFP+ with 1 expansion module
Switching Capacity
480Gbps
960Gbps
Forwarding Rate
357Mpps
714Mpps
Packet Buffer
9MB
Store and Forward
Cut Through Switching
Forwarding Method
Expansion Module:
Ports
Model Name
Gigabit (10/100/1000)
8
DXS-3600-EM-8T
10GBASE-T
4
DXS-3600-EM-4XT
10G SFP+
8
DXS-3600-EM-8XS
40G QSFP+
4
DXS-3600-EM-4QXS
120G CXP Stacking*
2
DXS-3600-EM-STACK
* Only for DXS-3600-32S
Product Overview 1
Mechanism & ID Design
2
3
DXS-3600-32S
DXS-3600-16S
4
5
4
DXS-3600-32S
DXS-3600-16S
1



1 port 10/100/1000Mbps MGMT Port
1 RJ45 Console port
1 SD card Interface
4

Two AC hot-swappable, 1+1
redundancy and load sharing
power supplies
2

Fixed 24 SFP+ ports (32S)
Fixed 8 SFP+ ports (16S)
5

Three hot-swappable, 2+1
redundancy fan trays
3

Expansion Slot
Dimension:
44mm(H)×506mm(D)×440mm(W)
Hardware Overview
– Version Notes
B1 R1.10 is not backward compatible with A1
A1 R1.00 will not be maintained after B1 release
A1 CPU works fine with L2 Data Center feature.
For L3 features, we suggest to replace to B1 version.
HQ will provide free CPU daughter board to upgrade the A1 devices to B1 in
the future*
Items
DXS-3600-32S A1
DXS-3600-32S B1
DXS-3600-16S B1
CPU
600MHz
1.2GHz
SDRAM for CPU
DDR 512MBytes
DDR 1GB
Flash
128MBytes
1GB
Firmware
R1.00
R1.10
* CPU board replacement will go though RMA process
Hardware Overview
– Cooling System
Optimized cooling system to fit the heat dissipation
design of data center:
– Customers can choose desired airflow by using different power and
fan module which support
 Front-to-Back
 Back-to-Front
Hot Aisle
Cold Aisle
Cold Aisle
Hot Aisle
P.S Different airflow modules cannot be mixed.
Hardware Overview
– Cooling System
Maintain the same airflow direction in a rack to avoid unexpected system
crash and extend the lifespan
Provide the flexibility to turn the switch front panel to the same side of
server ports for better cable management
TOP of Rack (ToR)
Back-to-front
air flow
Keep the same side for DXS3600’s front panel with server
ports to
-
reduce cable length
-
simplify cable management.
Expansion Modules
DXS-3600-EM-4XT
4-port 10GBASE-T
Dec. 2012
DXS-3600-EM-4QXS
4-port 40G QSFP+
Nov. 2012
DXS-3600-EM-8T
8-port Gigabit Ethernet
Oct. 2012
DXS-3600-EM-8XS
8-port 10G SFP+
Sep. 2012
DXS-3600-EM-STACK
2-port 120G CXP Interface
Q1 2013
Accessory
– Transceiver
DEM-431XT (10G Multi-Mode)
62.5μm
160 MHz-km
62.5μm
OM1 200 MHz-km
50μm
400 MHz-km
50μm
OM2 500 MHz-km
50μm
OM3 2000 MHz-km
DEM-432XT (10G Single-Mode)
10KM
DEM-433XT (10G Single-Mode)
40KM
DEMQX01Q-SR (40G QSFP+)*
100M
* 40G QSFP+ will be released in Q4 2012
26m
33m
66m
82m
300m
Accessory
– Cables
Model
Description
Schedule
DEM-CB100S
SFP+ to SFP+ 1m Direct Attach Cable
Now
DEM-CB300S
SFP+ to SFP+ 3m Direct Attach Cable
Now
DEM-CB700S
SFP+ to SFP+ 7m Direct Attach Cable
Now
DEM-CB100QXS
QSFP+ to QSFP+ 1m Direct Attach Cable
Q3/2012
DEM-CB300QXS
QSFP+ to QSFP+ 3m Direct Attach Cable
Q3/2012
DEM-CB100QXS-4XS
QSFP+ to 4 x SFP+ 1m Direct Attach Cable
Q3/2012
DEM-CB50CXP
CXP to CXP 50cm Stacking Cable
Q4/2012
QSFP+ to 4 x SFP+ Splitter Cable
 DEM-CB100QXS-4XS splitter cable extends the max. 10G SFP+ port of DXS-360016S to 24, DXS-3600-32S to 40
Server farm
DGS-3620
DGS-3420
Server farm
Accessory –
Power Supply and Fan Module
Model
Description
DXS-3600-PWR-FB
A 300W AC power supply tray with front to back airflow
DXS-3600-PWR-BF
A 300W AC power supply tray with back to front airflow
DXS-3600-PWRDC-FB
A 300W DC power supply tray with front to back airflow
DXS-3600-FAN-FB
A fan tray with front to back airflow
DXS-3600-FAN-BF
A fan tray with back to front airflow
P.S Different airflow module cannot be mixed.
Software Overview
– DLMS
SI
Market / Application
Top-of-Rack (ToR) switch
EI
1. Aggregation switch for
- Enterprise
- Campus
- MPLS Network
2. Core switch for
- SME
- SMB
Features
1. Data Center Bridging (DCB):
- 802.1Qbb PFC
- 802.1Qaz ETS
- 802.1Qau QCN
- DCBX
1. L3 Routing:
- VRRP, RIPv1/v2, OSPF, BGP
2. L2/L3 Features:
- Q-in-Q, VLAN Translation*,
ERPS*, Private VLAN*, Static
Route, ACL, Physical Stacking*
3. L2 MPLS:
- LDP, VPWS, VPLS
Upgrade License
1. DXS-3600-32S-SE-LIC
(DLMS)
2. DXS-3600-16S-SE-LIC
* future release
2. L3 Multicasting:
- IGMPv1/v2/v3, PIM-DM/SM,
DVMRPv3
4. L3 VPN:
- MPLS/BGP L3 VPN, VRF-Lite
Competitive Comparison & Analysis
DXS-3600-32S
Performance
•
•
•
•
•
•
•
•
•
4 Combo SFP+/10GBASE-T
Graceful restart
No expansion module design
32K MAC address only
No 802.1Qaz, Qau
1K VLAN Group only
3K routing table size only
No BGP, MPLS, L3 VPN
No selective QinQ
Dell 8024F
Pros
Cons
•
•
•
•
•
•
•
•
IS-IS, Graceful restart
Super VLAN
OAM, CFM, Y.1731
No expansion module design
32K MAC address only
No 802.1Qaz, Qbb, Qau
12K routing table size only
No MAC, subnet based VLAN
IS-IS
Super VLAN
IPv6 features
OAM, CFM, MEF 9/14
No expansion module design
No DC power supply
No cut through switching
No 802.1Qaz, Qbb, Qau
No MPLS
Huawei S6700-24-EI
HP 5820AF-24XG
Netgear XSM7224S
•
•
•
•
•
•
•
•
•
•
•
4 Combo SFP+/10GBASE-T
Graceful restart
IPv6 features
No expansion module design
32K MAC address only
No cut through switching
No 802.1Qaz, 802.1Qau
No BGP, MPLS, L3 VPN
VLAN Groups 1K only
IGMP snooping groups 1K only
6K routing table size only
Price
Price: MSRP
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
L2 switch only
Fixed AC Power supply
No L3 routing, multicast
No cut through switching
16K MAC address only
VLAN Groups 1K only
No QinQ, 802.1x
Poor QoS functions
No LLDP, DHCP Server
No IPV6
Juniper EX2500
Competitive Comparison & Analysis
- Key Comparison
D-Link
DXS-3600
Netgear
XSM7224S
Dell
8024F
HP Procurve
5820AF-24XG
128K
32K
32K
32K
IEEE 802.1Qaz
Yes
No
No
No
IEEE 802.1Qbb
Yes
Yes
Yes
No
IEEE 802.1Qau
Yes
No
No
No
VLAN
VLAN group
4K
1K
1K
4K
Multicast
IGMP snooping
group
4K
1K
NA
2K
Routing table size
16K
6K
3K
12K
BGP
Yes
No
No
Yes
MPLS
Yes
No
No
Yes
MPLS L3 VPN
Yes
No
No
Yes
Power
Consumption
32S: 115.3W
16S: 74.3W
195.2W
237.77W
177.9W
Category
MAC Address
Data Center
Bridging
L3 Routing
Power
Consumption
Feature
MAC Address
table
Art of War – Netgear XSM7224S
Attacking Point
Power Consumption
Previous gen. chipset with higher power consumption (195.2W).
40G Uplink
40G uplink is important for ToR switch while 100G is expensive and not
popular yet
Data Center Bridging
An important feature to achieve Lossless Ethernet Link which is necessary
for Data Center application
No support 802.1Qaz, 802.1Qau and cut through switching
DXS-3600 supports 16K routing table size but XSM7224S only 6K
L3 Routing
Need to buy upgrade license for L3 features, more than US$2000
No BGP, MPLS L3 VPN
Stacking Bandwidth
XSM7224S only supports 80Gbps stacking bandwidth with store and
forward design
Modular Design
Modular design provides the flexibility to support different media types or
expand SFP+ port density
Myth/Defending Point
4 Combo
SFP+/10GBASE-T Ports
IPv6 features
DXS-3600 Series supports expansion module to add 4 x 10GBASE-T ports
(DXS-3600-EM-4XT) without wasting other SFP+ ports
DXS-3600 Series already support IPv6 ACL/QoS from R1.00
DXS-3600 Series will support IPv6 management and routing in Q1/2013
Art of War – Netgear XSM7224S
Try to spec-in
 128K MAC Address Table
 64 MSTP Instance
 1K Static Route
Try to remove following spec
 NSF OSPF Graceful Restart
12Kbyte Jumbo Frame
 4K VLAN Group
Art of War – Dell 8024F
Attacking Point
Power Consumption
Previous gen. chipset with higher power consumption (237.77W).
40G Uplink
40G uplink is important for ToR switch while 100G is expensive and not
popular yet
Data Center Bridging
An important feature to achieve Lossless Ethernet Link which is
necessary for Data Center application
8024F does not support 802.1Qaz, 802.1Qau and cut through switching
L3 Routing
Only 3K routing table size
8024F does not support BGP, MPLS L3 VPN
Modular Design
8024F does not support expansion module for more SFP+ ports or
multiple media types
Myth/Defending Point
4 Combo
SFP+/10GBASE-T Ports
DXS-3600 Series supports expansion module to add 4 x 10GBASE-T
ports (DXS-3600-EM-4XT) without wasting other SFP+ ports
Pricing
Features are not enough to support Data Center’s Lossless Ethernet
Link requirement.
Previous gen. chipset with high power consumption
For price bid, please contact local PM or RM
Try to spec-in
 128K MAC Address Table
 64 MSTP Instance
 256 IP Interface
Try remove following spec
 NSF OSPF Graceful Restart
12Kbyte Jumbo Frame
 4K VLAN Group
 1K Static Route
Art of War – HP 5820AF-24XG
Attacking Point
Power Consumption
Previous gen. chipset with higher power consumption (177.9W).
40G Uplink
40G uplink is important for ToR switch while 100G is expensive and not
popular yet
Data Center Bridging
An important feature to achieve Lossless Ethernet Link which is
necessary for Data Center application
5820AF does not support any 802.1Qbb, 802.1Qau, 802.1Qaz
Modular Design
Modular design provides the flexibility to support different media types
or expand SFP+ port density
Myth/Defending Point
IS-IS
Comprehensive Metro
Features
IS-IS routing usually adopted by very large ISPs, but our target are
mid-to-large ISPs
OSPF is more popular than IS-IS, OSPF is more suitable for mid-to-large
size network
DXS-3600 Series supports L2/L3 MPLS VPN, multicast and QinQ
functions
DXS-3600 Series will support Ethernet or service OAM in the future
Try to spec-in
 Data Center Bridging (DCB)
 12Kbyte Jumbo Frame
 256 IP Interface
 128K MAC Address Table
 64 MSTP Instance
 1K Static Route
Try to remove following spec
 NSF OSPF Graceful Restart
 Super VLAN

IS-IS
Art of War – Huawei S6700-24-EI
Attacking Point
Power Consumption
S6700 has higher power consumption (165W).
Data Center Bridging
S6700 does not support any 802.1Qaz, 802.1Qau, 802.1Qbb and cut
through switching
L3 Routing
No MPLS L3 VPN
Modular Design
S6700-24-EI does not support expansion module for more SFP+ ports
or 40G QSFP+ interface
Myth/Defending Point
IS-IS
MEF 9/14
IS-IS routing usually adopted by very large ISPs, but our target are
mid-to-large ISPs
OSPF is more popular than IS-IS, OSPF is more suitable for mid-to-large
size network
DXS-3600 series is not intend to get MEF 9/14
For projects required, please contact local PM or RM
DXS-3600 series already supported IPv6 ACL/QoS from R1.00
IPv6 features
DXS-3600 series will support IPv6 management and routing on
Q1/2013
Try to spec-in
 Data Center Bridging (DCB)

12Kbyte Jumbo Frame
Try to remove following spec
 Super VLAN
 IS-IS
Technology Brief
– Data Center Bridging(DCB)
IEEE 802.1Qbb Priority-based Flow Control (PFC)
– A flow control mechanism that can be controlled independently for each CoS
– The goal is to ensure zero loss (lossless) under congestion in DCB network
Congestion
Source Port 1
Destination Port 1
q0
q0
q1
Remain transmitting
q1
q2
q2
q3
q4
q3
q5
q5
q6
q6
q7
Source Port 1
q4
q7
Destination Port 1
Queue 4 congested
Technology Brief
– Data Center Bridging(DCB)
IEEE 802.1Qaz Enhanced Transmission Selection (ETS)
– An enhancement of transmission selection to support allocation of bandwidth
amongst traffic classes
– When a traffic doesn’t use allocated bandwidth, ETS allow other traffic class to use
the available bandwidth
q0
q1
q2
grouping
q3
q4
q5
q6
Type
PGID
BW%
15
-
0
50
1
50
policing
IPC
SP
SAN – 50%
LAN – 50%
q7
 Priority Group ID (PGID) = 15
A special value indicates the priority is not managed by ETS; this is used for SP
 PGID 8 to 14 are not used
Inter-Process Communication (IPC)
SAN
LAN
WRR
Technology Brief
– Data Center Bridging(DCB)
IEEE 802.1Qau Congestion Notification (QCN)
– Enable switch to signal congestion information to end station capable of
transmission rate limiting to avoid frame loss
– QCN works across a single L2 domain
Switch A
Host B
Switch C
Send CNM to RP switch to
reduce the transmission
Switch B
4
3
CP
Send CNM to end station to
reduce the transmission
Host A
RP
CP: Congestion Point
RP: Reaction Point
CNM: Congestion Notification Message
2
1
Host C
Monitoring
output queue
size
Technology Brief
– DCBX
Data Center Bridging Exchange Protocol (DCBX)
– DCBX allows auto exchange of Ethernet Parameters and Discovery Function
between switches and end points
– Goals of DCBX:
 Discovery of DCB capability in a peer
 DBC feature misconfiguration detection
 Peer configuration of DCB features
Data Center
Ethernet Links
DCBX
Legacy Ethernet
Links
Legacy Ethernet
Network
Data Center
Ethernet
Cloud
Technology Brief –
Forwarding Method
Cut Through Switching
– DXS-3600 series examines the first 560 bytes to make the forwarding decision in
cut through mode to shorten the forwarding latency
– Whereas a store-and-forward switch makes a forwarding decision on a data
packet after it has received the whole frame and checked its integrity
Preamble
DA
SA
EtherType
Payload
FCS
8 Bytes
6 Bytes
6 Bytes
2 Bytes
1500 Bytes
4 Bytes
Evaluating 560 bytes and then forward the packet
Preamble
DA
SA
EtherType
Payload
FCS
8 Bytes
6 Bytes
6 Bytes
2 Bytes
1500 Bytes
4 Bytes
Receiving whole packet and then forward it