Juniper EX4500 Datasheet page 4

Campus Deployments
The EX4500 also offers an economical, power efficient and
compact solution for aggregating 10GbE uplinks from access
devices in building and campus deployments (see Figure 3).
The switch's dual-speed interfaces also support environments
transitioning from GbE to 10GbE.
The EX4500 easily meets enterprise core switch requirements,
delivering wire-speed performance on every port, full device
redundancy, support for Layer 3 dynamic routing protocols such
as RIP and OSPF, and a comprehensive security and quality-of-
service (QoS) feature set.
Data Center Deployments
The EX4500 Ethernet Switch is designed for demanding data center
applications where high performance, high availability, and energy
efficiency are key requirements (see Figure 1). Operating at wire
speed, the EX4500 switches deliver 714 Mpps throughput and a data
rate of 960 Gbps (full duplex) for both Layer 2 and Layer 3 protocols.
An industry first and only, EX4500s can be interconnected in a Virtual
Chassis configuration that also includes EX4200s, creating a single
logical switch that offers a variety of port and density options for
mixed server environments.
Flexible deployment options enable the EX4500 to support back-
to-front and front-to-back cooling, which ensures consistency
with server designs for hot and cold aisle deployments. Front- and
rear-facing configuration options ensure closer proximity to server
ports, optimizing performance and keeping cable lengths short and
manageable. The EX4500 is also very environmentally conscious,
drawing less than eight watts per port under maximum load.
For small data centers, the EX4500, in a Virtual Chassis
configuration, is ideally deployed as the aggregation/core
switch, aggregating 10GbE uplinks from EX4200 Virtual Chassis
configurations in the access layer (see Figure 2).
Figure 4: The EX4500 deployed as a data center FCoE Transit Switch in a top-of-rack Virtual Chassis configuration.
4
MX Series
Servers with CNA
Customers introducing 10GbE into their racks will be able to use
the EX4500 to add 10GbE-attached servers, iSCSI, and network-
attached storage (NAS) with minimal impact to the current
switching infrastructure.
The EX4500 also includes hardware support for the Data
Center Bridging (DCB) feature set, also referred to as Converged
Enhanced Ethernet (CEE). DCB is a collection of individual
IEEE standards that allow for Ethernet-based I/O and network
convergence, including support for FCoE.
10GbE DCB and I/O Convergence Deployments
The EX4500 is a full IEEE DCB- and T11 FC-BB-5-based FCoE
Transit Switch, delivering a high-performance solution for
converged server edge access environments. As an FCoE Transit
Switch, the EX4500 provides a pure IEEE DCB-converged access
layer between FCoE-enabled servers and an FCoE-enabled Fibre
Channel SAN (see Figure 4).
The EX4500 also supports FC Initiation Protocol (FIP) snooping,
which provides perimeter protection to ensure that the presence
of an Ethernet layer does not impact existing SAN security
policies. The FCoE Transit Switch functionality, along with Priority-
based Flow Control (PFC) and Data Center Bridging Exchange
(DCBX), are included as part of the default software; no additional
licenses are required.
Junos Operating System
The EX4500 runs the same Juniper Networks Junos operating
system that is used by other EX Series Ethernet Switches, as
well as all Juniper Networks routers and Juniper Networks SRX
Series Services Gateways. By utilizing a common operating
system, Juniper Networks delivers a consistent implementation
and operation of control plane features across all products.
To maintain that consistency, Junos OS adheres to a highly
LAN
10GbE
Servers with CNA
SAN
FC
Fabric
FC Gateway
on SAN switch
EX4500 Virtual Chassis
As FCoE Switch
Ethernet
FCoE
FC