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APPRAISAL DATA
The Summitฎ
400-24t stackable switch delivers non-blocking full
10/100/1000BASE-T Gigabit Ethernet connectivity to the desktop
with Layer 3 intelligence to provide secure access to the LAN
with maximum resiliency and throughput. With its implementation
of EXTREME Networksฎ Unified Access Architecture (UAA), the
Summit 400-24t is an industry-leading solution that offers
tri-speed Ethernet connectivity to the desktop, 4 ports of fiber
per switch, and high-performance UniStack stacking.
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Resiliency to Support Convergence |
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Performance to Support Converged Services |
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Security to Support Converged LAN |
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Support for Evolving Desktop |
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Excellent Availability |
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Scalability, Deployment Simplicity |
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UniStack Stacking Reduces Complexity |
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Common
Management User Interface and Commands |
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Unified Management |
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Provide support for high bandwidth desktop connectivity |
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Technology refresh with focus on future proofing and
preparation for converged services |
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Technology refresh boosting resiliency through
high-performance stacking |
DESIGNED FOR CONVERGED SERVICES
The convergence of traditionally non-LAN services on
top of growing ENTERPRISE applications brings greater demands,
responsibilities, and threats to the network infrastructure. The
Summit 400-24t, designed for convergence, provides the mandatory
resiliency to keep applications available, delivers the features
and performance to support converged services, and provides
unique protection from security threats.
Link Redundancy
Proper support for converged services requires link resiliency,
which the Summit 400-24t provides through an extensive set of
Layer 1 through Layer 3 link redundancy options, for example:
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Layer 1: Software
redundant port๖so simple and easy to deploy that it requires
no supporting protocols or timers to configure. |
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Layer 2: Standard
Spanning Tree and Rapid Spanning Tree, plus the EXTREMEly
fast convergence of EAPS, which is capable of preserving
sessions of latency sensitive applications such as
voice-over-IP (VoIP) through link failure. |
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Layer 3: OSPF
Equal Cost Multi-Path (ECMP) which doubles the throughput of
redundant links, VRRP for layer 3 dual homing, and ESRP
which supports dual homing at both Layer 2 and Layer 3. |
Rapid Convergence Resiliency
The Summit 400-24t provides Ethernet Automatic Protection
Switching (EAPS), the RFC 3619 link layer resiliency protocol
pioneered by EXTREME Networks. Since EAPS fails over in less
than 50 milliseconds in most deployments, the Summit 400-24t
recovers from faults without disrupting latency-sensitive
sessions such as VoIP calls. This ensures toll-quality voice and
picture-perfect video.
Highly Resilient Stacking
UniStack stacking assures continuing availability of converged
services. Redundant paths between every switch and 100% master
redundancy protect the stack. The aggregation of links on
multiple switches and creation of redundant uplinks on multiple
switches enhances link redundancy.
Quality of Service (QoS)
EXTREME Networks pioneered quality of service (QoS) over local
area networks, with every switch from EXTREME Networks having
been built from the ground up to deliver superior QoS. The
Summit 400-24t is no exception, with its eight hardware QoS
queues for finest granularity of prioritized traffic forwarding.
Utilizing the power of eight QoS queues is EXTREMEWareฎ packet
intelligence, which is able to examine packets from Layer 2 to
Layer 4 in the process of classifying traffic. With a powerful
classification engine and fine queue granularity, Summit 400-24t
provides consistent and timely packet delivery required to
support converged services.
Minimized Latency
Latency and jitter can be lethal to real-time
applications such as voice and video. The Summit 400-24t was
designed around a low latency and low jitter architecture in
spite of the wealth of services it delivers. In particular, the
UniStack stacking architecture was designed so that forwarding
is always performed locally when the destination port is known,
and when packets have to pass through the stack they always take
the shortest path.
Non-Blocking Forwarding
High-performance starts with a non-blocking architecture as
delivered by the Summit 400-24t. Since any access switch that
properly supports converged services must also examine every
packet for QoS and security, even more important is the ability
to apply these features without degrading switch performance.
The Summit 400-24t supports all security, QoS, and management
features at full line rate with no negative effect on
applications.
Line Rate Access Control Lists (ACLs)
ACLs are one of the most powerful tools to control network
resource utilization and to secure and protect the network.
Summit 400-24t supports up to 1,512 ACLs based on Layer 2, 3 or
4-header information such as the MAC address, IP
source/destination address, or protocol.
Intelligent Network Access
Summit 400-24t supports a comprehensive range of Network Login
options by providing an 802.1x agent-based approach, a web-based
(agent-less) login capability for guests, and a MAC-based
authentication model for devices. With these modes of Network
Login, only authorized users and devices can connect to the
network and be assigned to the appropriate VLAN.
Multiple Supplicant Support
Multiple supplicant support secures IP telephony and wireless
access. Converged network designs often involve the use of
shared ports. Shared ports represent a potential vulnerability
in a network. Multiple supplicant capability on the Summit 400-
24t switch allows it to uniquely recognize and apply the
appropriate policies for each user or device on a shared port.
Media Access Control (MAC)
MAC lockdown secures IP telephones, wireless access points (APs)
and servers. The MAC address security/lockdown feature enables
Summit 400-24t to block access to any Ethernet port when the MAC
address of a station attempting to access the port is different
from the configured MAC address. This feature is used to "lock
down" a device like an IP telephone, an AP or a server to a
specific port.
Host Integrity Checking
Host integrity checking helps keep infected or noncompliant
machines off the network. Summit 400- 24t supports a host
integrity or end point integrity solution that is based on the
Trusted Computing Group model.
Denial of Service (DoS) Protection
If a Summit 400-24t switch detects an unusually large number of
packets in the CPU input queue, it will assemble ACLs that
automatically stop these packets from reaching the CPU. After a
period of time, the ACLs are removed. If the attack continues,
they are reinstalled.
The Summit 400 series of switches
allows the traditional edge layer and aggregation layer of
the network to be collapsed into a single access layer. A
two-tier network that consists of an access layer and a core
layer can reduce the number of switches required and hence
reduce the network acquisition costs and network management
costs. Depending on the size and geographic reach of the
network, a two-tier network can be the most cost-effective
design for a corporate network. The Summit 400 series of
switches are also designed to reduce CapEx and OpEx as
demonstrated by the following features:
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All Summit 200s, 300s, and 400s
share the same operating system and network management
software thereby simplifying the management of the
access layer |
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The stackable Summit 400 family
provides the convenience of a chassis at the price point
of stackable switches |
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Summit 400 switches with the
exception of Summit 400-24p Power-over-Ethernet (PoE)
switch, share common redundant external power systems
thereby reducing sparing requirements |
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SCALABLE PERFORMANCE
Networks are undergoing a transition from simple Fast
Ethernet data connectivity to converged services and new
applications over LAN which demand new infrastructure services:
streaming media, VoIP, data analysis and simulations, all of
which require expanded bandwidth, rapid resiliency, and precise
quality of service. The Summit 400-24t provides these services
in one multifeatured platform.
Legacy Support
With plug-and-play auto-sense on every port, attaching legacy
devices is a breeze. With the Summit 400-24t, existing 10 Mbps
or 100 Mbps devices are transparently supported, and new
security and management benefits become immediately available.
Gigabit Evolution
Gigabit Ethernet is a stable, mature technology that provides
the highest available bandwidth to the desktop. The combination
of low-cost Gigabit Ethernet NICs and embedded gigabit
interfaces and increasingly bandwidth hungry ENTERPRISE
applications is driving the demand for gigabit to the desktop,
for which the Summit 400-24t is the perfect switch, with its
line-rate Layer 2 and Layer 3 gigabit forwarding, QoS and
resiliency to support demanding applications.
Future Applications
The Summit 400-24t already provides low latency and jitter plus
the ability to prioritize based on an extensive set of packet
header information that the most challenging of future
applications is likely to require. This combination of
performance plus packet intelligence, coupled with line rate
forwarding and extensive resiliency options, makes the Summit
400-24t an obvious choice to future-proof the LAN access layer
for future converged applications such as desktop training,
video conferencing and IP telephony.
Link Redundancy
To assure constant availability of wireless access, the Summit
400-24t provides a plethora of redundancy features including the
spanning tree and rapid spanning tree that are commonly
provided, and much more. For example, Software Redundant Port
makes one link redundant to another very simply, with no
protocol overhead. For latency sensitive applications, EAPS is
capable of failing over in 50 milliseconds, fast enough to
sustain a VoIP session. At Layer 3 there are three more options:
OSPF ECMP, VRRP, and ESRP, for incredibly scalable deployment of
link resiliency.
Power Redundancy - External Power System
An important component of the continuous service capability of
the Summit 400-24t is its External Power System that provides
immediate backup power in the unlikely event that the internal
AC power supply fails, or in case the primary AC power input
source has problems. The External Power System for Summit
400-24t is comprised of two components, a compact 1 rack unit
(RU) tray which accepts up to two power modules, and a 160 watt
power module that provide 1:1 power redundancy for 100% backup
power, together ensuring uninterrupted LAN access and continuous
service availability.
Forwarding Performance
When management or security applications are enabled, some
switches bog down and become network bottlenecks. Not so the
Summit 400-24t, with line-rate packet processing and forwarding
performance, even when complex ACLs, Network Login, or other
Layer 2, 3, or 4 features are enabled. This is because all
packet processing is done in packet processing ASICs and not in
software๖the benefit is unimpeded traffic flow and LAN
availability.
Installation Flexibility
With its compact 1 RU footprint, finding rack space to deploy
the Summit 400-24t is trivial. A deployment of 192 gigabit ports
only requires 14 inches of space. Further enhancing its
deployment flexibility is the convenience of UniStack stacking
that can link all these ports into a highly redundant, easily
managed unit that, unlike a chassis, does not require contiguous
allocation of rack space.
Voice Grade Service Everywhere
Granular QoS, low latency, and low jitter enable voice quality
connections. Summit 400-24t supports a range of QoS technologies
that can prioritize and predictably handle high priority
traffic-policing or rate limiting on ingress, 802.1q tagging and
DiffServ marking, and shaping on egress with eight queues per
port. Traditionally, EXTREME Networks has built products with
low latency and jitter and this tradition continues with the
Summit 400-24t allowing network managers to build networks with
low end-to-end latency and jitter.
Plug and Play
Summit 400-24t includes several quick install features that
simplify its deployment into legacy locations as technology
upgrades or into brand new installations. Every copper gigabit
port is auto-sense and tri-speed to easily conform to the
attached device. Every port auto-senses the polarity of the
attached cable and adapts automatically, so there is no need to
worry about crossover versus straight-through cables. Every
copper port can optionally test a cable connection for faults to
accelerate deployment of new LANs. And every port supports Link
Layer Discovery Protocol (LLDP) to sense and configure to LLDP
compliant attached devices.
Access switches are deployed using either chassis or fixed
format switches. A chassis has the advantage of simplifying
management, but the disadvantage of requiring allocation of
more space than initial port counts may require. Fixed
format switches have the advantage of being less expensive
and easier to fit into open rack slots, but the disadvantage
that each new addition of access ports brings with it
another device to manage. Stacking can reduce the management
overhead of fixed format switches, but often at a cost in
overall performance and reliability. A stacking architecture
that lacks adequate bandwidth or incurs forwarding penalties
results in a serious loss of performance, making it
unsuitable to support new converged applications.
The Summit 400 family with UniStack
stacking architecture was designed to support converged
services. The significant throughput provided by UniStack
stacking, up to 160 gigabits per second (Gbps) per stack,
and the distributed, shortest path forwarding provide
performance competitive with some chassis switches.
Resiliency is of key importance for these applications.
Availability is assured by redundant bi-directional ring
architecture and n-1 master redundancy, distributed Layer 2
and Layer 3 link aggregation and link redundancy, and
distributed uplinks.
UniStack stacking on the Summit 400
family delivers the best of both worlds: the benefits of a
chassis at the cost of a stackable, in an architecture
designed to support todayโs evolving LAN applications. The
resulting network simplification results in lower management
and maintenance costs, while enhancing overall availability.
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SIMPLIFIED MANAGEMENT
Network management and maintenance can be
challenging, especially for IT departments managing complex
converged networks while under the pressure to reduce staff and
expenses. For all organizations, any repetitive management
operation taxes skilled resources, draining valuable
productivity. The Summit 400-24t offers relief through the
management simplification provided by UniStack stacking. By
making a stack of switches appear to be a virtual modular
switch, the EXTREMEWare UniStack architecture allows all ports
in the stack of switches to be configured in one management
session.
Single Point of Management
With UniStack stacking, up to eight EXTREME Networks Summit
switches, including the Summit 400 and Summit 200 families and
the Summit 300-24, appear as a single network element managed
through a single IP address, with the stack representing a
single managed object inside an ENTERPRISE management tool such
as EPICenterฎ management suite from EXTREME Networks. Having a
single IP address for configuration, changes and upgrades yields
dividends in saved time.
Easy Adds/Drops
UniStack stacking also simplifies network expansions or changes.
Adding new access ports to the LAN is as simple as turning on
stacking in a new Summit 400-24t and adding it to an existing
stack, similar to adding a new module to a modular switch,
except that no space-consuming chassis is required. Similarly,
moving the Summit 400-24t to a new location is convenient, since
the transferred switch can stand alone or become part of another
stack.
Simple Redundancy Enhancement
Because a stack of Summit 400-24ts represents an n-times
replication of traffic processors, management processors, memory
and power supplies, the net resiliency of a UniStack stack is
greater than the sum of its parts. Add to this the ability to
distribute redundant uplinks on different switches and
availability goes up even more, compared to a standalone switch.
Highly Reliable Architecture
UniStack stacking on Summit 400s is a highly resilient,
bi-directional full-duplex ring architecture with n-1 stack
master redundancy designed to survive the failure of a stacking
link or switch in the stack. With a nominal transfer rate of 20
Gbps and instantaneous transfers of 40 Gbps per switch, a stack
of eight switches can transfer up to 160 Gbps through the stack
with highly reliable, completely distributed, shortest path
forwarding.
Common Command Line Interface (CLI) Edge to Core
The Summit 400-24t operates with the award-winning EXTREMEWare
software from EXTREME Networks. EXTREMEWare gives the Summit
400-24t the same administrative interface as any EXTREMEWare
switch running in the network. This common interface reduces
training time, time to configure or update, and management
overhead.
Common Feature Set
The common feature set that the Summit 400-24t shares with other
switches from EXTREME Networks that are controlled by license
levels, simplifies and reduces the cost of managing an EXTREME
Networks powered LAN. The Summit 400-24t delivers a rich suite
of features spanning the range of protocols to intelligently
overseeing traffic, consistent and simple to deploy, enabling
efficient, productive LAN management.
Common Management
EPICenter ENTERPRISE LAN manager supports the Summit 400-24t,
either individually or in UniStack stacks, providing a global
view to enhance IT staff productivity. Whether the LAN is
managed via serial port, web, telnet or a network manager like
EPICenter, EXTREMEWare included with the Summit 400-24t provides
a uniform interface for common management, thus reducing the
cost of management.
Link Layer Discovery Protocol
By incorporating LLDP, the Summit 400-24t reduces networking
expenses by enabling plug and play installation of network
devices, simplifying maintenance and reducing troubleshooting
time. With its support of IEEE 802.1ab, LLDP simplifies
deployment of VoIP phones, wireless access points, cameras, and
any device that supports this vendor independent protocol.
Secure Management
Security of management is of primary importance, especially for
remotely managed LANs. The Summit 400-24t provides essential
secure management features to protect these critical resources.
All administrative access is protected via very secure
authentication using TACACS or RADIUS access control. Secure
Shell (SSHv2) is available to protect management sessions from
snooping; Secure Copy (SCP) protects configuration file
downloads; and SNMPv3 protects management sessions using
ENTERPRISE management tools such as EPICenter. With its full
management security, Summit 400-24t simplifies safe remote
management.
Desktop Access Management
Using ACLs to examine Layer 2, 3, and 4 packet header
information for security and traffic classification, establishes
the Summit 400-24t as a premier access switch. Its ability
authenticate users essential at the LAN edge, separates the
Summit 400-24t from the pack. These features and more, available
in the EXTREMEWare operating system shipped with the Summit
400-24t, provide the full and robust access management that sets
Summit 400-24t apart from others.
- High Throughput
- High Resiliency
- Single Management Point |
Figure 1: Summit 400-24t UniStack Stack
Cabling Illustration
TARGET APPLICATIONS
The Summit 400 family delivers high-performance and
cost-effective connectivity driven by networking trends such as
the increasing number of IP telephones, wireless access points
and other devices at the edge of the network, Gigabit Ethernet
connections to the desktop, and the use of gigabit and 10
Gigabit Ethernet as an interconnect technology. The stackable
Summit 400 family allows the traditional edge layer and
aggregation layer of the network to be collapsed into a single
Unified Access layer.
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PHYSICAL |
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Ports |
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24 ports
10/100/1000BASE-T with auto-config and auto-polarity |
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4 ports SFP
(mini-GBIC, shared PHY with 4 10/100/1000BASE-T ports) |
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1 port Serial
(control port) |
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2 UniStack
stacking ports, 10 Gbps full duplex each |
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Dimensions |
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Height
Inches/Cm: 1.73 Inches / 4.4 Cm |
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Width
Inches/Cm: 17.4 Inches / 44 Cm |
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Depth
Inches/Cm: 15.25 Inches / 38.8 Cm |
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Weight
Lbs/Kg: 11.5 lbs / 5.2 Kg |
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EPS
Dimensions |
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EPS-T |
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Height
Inches/Cm: 1.75 Inches / 4.4 Cm |
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Width
Inches/Cm: 17.4 Inches / 44 Cm |
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Depth
Inches/Cm: 7.6 Inches / 19.3 Cm |
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EPS-160 |
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Height
Inches/Cm: 1.7 Inches / 4.3 Cm |
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Width
Inches/Cm: 7.4 Inches / 18.8 Cm |
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Depth
Inches/Cm: 7.9 Inches / 20 Cm |
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Indicators |
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Per port
status LED including power status |
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Stacking
7-segment display |
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System Status
LEDs: management, fan and power |
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Temperature |
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Operating
Temperature Range, Degrees Celsius/Fahrenheit: 0 to 40
ฐC (32 to 104 ฐF) |
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Operating
Humidity Range (worst case, not for extended duration):
10-95% (RH) non-condensing |
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Storage and
Transportation Temperature Range (worst case),
Celsius/Fahrenheit: -40 to +70 ฐC (-40 to 158 ฐF) |
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Shock |
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Operational
Shock in Rack (worst case, not for extended duration):
3G, 11 ms, 18 shocks |
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Power |
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Auto-ranging
90-240VAC, 50-60 Hz |
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Line
Frequency: 50-60 Hz |
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No PoE Load
Min Voltage/Associated Current: 100VAC/1.1A |
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No PoE Load
Max Voltage/Associated Current: 240VAC/0.46A |
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Full PoE Load
Min Voltage/Associated Current: 100VAC/6A |
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Full PoE Load
Max Voltage/Associated Current: 240VAC/2.5A |
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No Load Heat
Dissipation, Watts/BTU: 80W/273BTU/hr |
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Full Load
including PoE Heat Dissipation, Watts/BTU: 140W /
477BTU/hr |
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External Power
System connector |
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External Power
System EPS-LD module: |
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-No Load Heat
Dissipation, Watts/BTU: 80W /273BTU/hr |
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-No Load
Current 100-240VAC: 1.1A-0.46A |
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-Full Load
Heat Dissipation, Watts/BTU: 140W /477BTU/hr |
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-Full Load
Current 100-240VAC: 6A-2.5A |
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Forwarding Tables |
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Layer 2/MAC
Addresses: 16K |
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Layer 3
Addresses: 2K |
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Layer 3 Static
Routes: 1K |
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Layer 3
Interfaces: 128 |
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Layer 3
routing table size: No limit to number of routes |
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80 Gbps switch
fabric bandwidth |
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35.7 Mpps
frame forwarding rate |
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9216 Byte
maximum packet size (Jumbo Frame) |
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25 load
sharing trunks, up to 8 members per trunk |
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8 QoS
queues/port |
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4096 VLANs
(Port, IEEE 802.1Q, MAC-based) |
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1512 total
number of ACL Rules/lines |
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63 rules per
port |
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ACL rules can
be applied to ingress |
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Rate
Limiting |
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Central flow
based bandwidth policing/rate limiting: packets are
classified after ingress into flows using ACLs and a
rate limiter is assigned to a given flow |
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Rate Limiting
Granularity: 1Mb/s |
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Available Rate
Limiters: 63 per port |
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Acoustic |
|
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44dBA Sound
Pressure |
|
|
North American
Safety of ITE |
|
|
UL 60950- 1,
Listed Device (US Safety) |
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- CSA
22.2#60950-00 (Canada Safety) |
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- Complies
with FCC 21CFR1040.10 & 1040.11, LN#50 7/2001 (US Laser
- Safety) |
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- CDRH Letter
of Approval (US FDA Approval) |
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- NOM/NYCE
(Mexico) |
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|
European
Safety of ITE |
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-
EN60950-1:2000 |
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- EN
60825-1+A2:2001 (Lasers Safety) |
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International
Safety of ITE |
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- CB Scheme
IEC 60950-1:2000+All Country Deviations |
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- AS/NZX 3260
(Australia /New Zealand) |
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- GOST
(Russia) |
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EMI/EMC |
|
|
North America
EMC for ITE |
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- FCC CFR 47
part 15 Class A (USA) |
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- ICES-003
Class A (Canada) |
|
|
European EMC
standards Egress Rate Shaping |
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- EN
55022:1998 Class A |
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- EN
55024:1998 Class A includes IEC 61000-4-2, 3, 4, 5, 6,
8, 11 |
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- EN
61000-3-2,3 (Harmonics & Flicker) |
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- ETSI EN 300
386:2001 (EMC Telecommunications) |
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- 89/336/EEC
EMC Directive |
|
|
International
EMC Certifications |
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- CISPR
22:1997 Class A (International Emissions) |
| |
- CISPR
24:1997 Class A (International Immunity) |
| |
- IEC/EN
61000-4-2 Electrostatic Discharge |
| |
- IEC/EN
61000-4-3 Radiated Immunity |
| |
- IEC/EN
61000-4-4 Transient Burst |
| |
- IEC/EN
61000-4-5 Surge |
| |
- IEC/EN
61000-4-6 Conducted Immunity |
| |
- IEC/EN
61000-4-11 Power Dips & Interruptions |
|
|
Country
Specific |
| |
- VCCI Class A
(Japan Emissions) |
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- AS/NZS 3548
ACA (Australia Emissions) |
| |
- NOM/NYCE
(Mexico) |
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- CNS
13438:1997 Class A (BSMI-Taiwan) |
| |
- MIC Mark,
EMC Approval (Korea) |
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- GOST
(Russian Federation) |
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Environmental |
|
|
EN/ETSI 300
019-2-1 v2.1.2 - Class 1.2 Storage |
|
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EN/ETSI 300
019-2-2 v2.1.2 - Class 2.3 Transportation |
|
|
EN/ETSI 300
019-2-3 v2.1.2 - Class 3.1e Operational |
|
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EN/ETSI 300
753 (1997-10) - Acoustic Noise |
|
|
ASTM D3580
Random Vibration Packaged |
|
|
EXTREMEWare
7.4e Supported Protocols |
|
General Routing and Switching |
|
|
RFC 1812
Requirements for IP Version 4 Routers |
|
|
RFC 1519 CIDR |
|
|
RFC 1256 IPv4
ICMP Router Discovery (IRDP) |
|
|
RFC 1122 Host
Requirements |
|
|
RFC 768 UDP |
|
|
RFC 791 IP |
|
|
RFC 792 ICMP |
|
|
RFC 793 TCP |
|
|
RFC 826 ARP |
|
|
RFC 894 IP
over Ethernet |
|
|
RFC 1027 Proxy
ARP |
|
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RFC 2338 VRRP |
|
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RFC 3619
Ethernet Automatic Protection Switching (EAPS) and
EAPSv2 |
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IEEE 802.1D -
1998 Spanning Tree Protocol (STP) |
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IEEE 802.1w
2001 Rapid Reconfiguration for STP, RSTP |
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IEEE 802.1Q -
1998 Virtual Bridged Local Area Networks |
|
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EMISTP,
EXTREME Multiple Instances of Spanning |
| |
Tree Protocol
(one domain per port) |
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PVST+, Per
VLAN STP (802.1Q interoperable) compatibility mode (one
domain / VLAN per port) |
|
|
EXTREME
Standby Router Protocol (ESRP) |
|
|
Static Unicast
Routes |
|
|
Software
Redundant Ports |
|
|
IEEE 802.3ae
Link Fault Signaling (LFS) for Summit 400 |
|
| | |
