Juniper EX4300-48P 데이터 시트
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• Redundant power supplies: The EX4300 line of Ethernet switches
supports internal redundant, load-sharing, hot-swappable,
and field-replaceable AC and DC power supplies to maintain
uninterrupted operations. Thanks to its compact footprint, the
EX4300 requires significantly less power than chassis-based
switches delivering equivalent port densities.
and field-replaceable AC and DC power supplies to maintain
uninterrupted operations. Thanks to its compact footprint, the
EX4300 requires significantly less power than chassis-based
switches delivering equivalent port densities.
• Hot-swappable fans: The EX4300 includes hot-swappable fans,
providing sufficient cooling even if one of the blowers were to fail.
• Redundant trunk group (RTG): To avoid the complexities of
Spanning Tree Protocol (STP) without sacrificing network
resiliency, the EX4300 employs redundant trunk groups to provide
the necessary port redundancy and simplify switch configuration.
resiliency, the EX4300 employs redundant trunk groups to provide
the necessary port redundancy and simplify switch configuration.
• Cross-member link aggregation: Cross-member link aggregation
allows redundant link aggregation connections between devices in
a single Virtual Chassis configuration, providing an additional level
of reliability and availability.
a single Virtual Chassis configuration, providing an additional level
of reliability and availability.
• Carrier-class hardware: The EX4300 leverages a purpose-built
packet forwarding engine ASIC, the EX-PFE, which integrates much
of the same intellectual property used in Juniper Networks carrier-
class routers. As a result, the EX4300 delivers the same predictable,
scalable functionality found in the world’s largest networks.
of the same intellectual property used in Juniper Networks carrier-
class routers. As a result, the EX4300 delivers the same predictable,
scalable functionality found in the world’s largest networks.
• IPv4 and IPv6 routing support: IPv4 and IPv6 Layer 3 routing
(OSPF and BGP) is available with an Enhanced license, enabling
highly resilient networks.
highly resilient networks.
Carrier-Class Operating System
The EX4300 runs on Junos OS, the same operating system
software used by other Juniper Networks switches, routers, and
security devices.
software used by other Juniper Networks switches, routers, and
security devices.
By utilizing a common operating system, Juniper delivers a
consistent implementation and operation of control plane
features across all products. To maintain that consistency, Junos
OS adheres to a highly disciplined development process that
utilizes a single source code, follows a single quarterly release
train, and employs a highly available modular architecture that
prevents isolated failures from bringing an entire system down.
consistent implementation and operation of control plane
features across all products. To maintain that consistency, Junos
OS adheres to a highly disciplined development process that
utilizes a single source code, follows a single quarterly release
train, and employs a highly available modular architecture that
prevents isolated failures from bringing an entire system down.
These attributes are fundamental to the core value of the
software, enabling all products powered by Junos OS to be
updated simultaneously with the same software release. All
features are fully regression tested, making each new release a
true superset of the previous version. Customers can deploy the
software with complete confidence that all existing capabilities
will be maintained and operate in the same way.
software, enabling all products powered by Junos OS to be
updated simultaneously with the same software release. All
features are fully regression tested, making each new release a
true superset of the previous version. Customers can deploy the
software with complete confidence that all existing capabilities
will be maintained and operate in the same way.
Converged Networks
The EX4300 line of Ethernet switches provides the highest levels
of availability for the most demanding converged data, voice,
and video environments, delivering the most reliable platform for
unifying enterprise communications.
of availability for the most demanding converged data, voice,
and video environments, delivering the most reliable platform for
unifying enterprise communications.
By providing 15.4 watts of Class 3 802.3af PoE on all ports to
power voice over IP (VoIP) telephones, closed-circuit security
cameras, wireless access points, and other IP-enabled devices, the
EX4300 delivers a future-proofed solution for converging disparate
networks onto a single IP infrastructure. The EX4300 switches also
support standards-based 802.3at PoE+, which delivers up to 30
watts per port for powering networked devices like multiple radio
IEEE 802.11n wireless access points and video phones that may
require more power than available with IEEE 802.3af.
power voice over IP (VoIP) telephones, closed-circuit security
cameras, wireless access points, and other IP-enabled devices, the
EX4300 delivers a future-proofed solution for converging disparate
networks onto a single IP infrastructure. The EX4300 switches also
support standards-based 802.3at PoE+, which delivers up to 30
watts per port for powering networked devices like multiple radio
IEEE 802.11n wireless access points and video phones that may
require more power than available with IEEE 802.3af.
Link Layer Discovery Protocol–Media Endpoint Discovery (LLDP-
MED)-based granular PoE/PoE+ management allows the EX4300
to negotiate PoE/PoE+ usage down to a fraction of a watt on
powered devices, enabling more efficient PoE utilization across
the switch.
MED)-based granular PoE/PoE+ management allows the EX4300
to negotiate PoE/PoE+ usage down to a fraction of a watt on
powered devices, enabling more efficient PoE utilization across
the switch.
To ease deployment, the EX4300 supports the industry-standard
LLDP and LLDP-MED, which enable the switches to automatically
discover Ethernet-enabled devices, determine their power
requirements, and assign virtual LAN (VLAN) parameters.
LLDP and LLDP-MED, which enable the switches to automatically
discover Ethernet-enabled devices, determine their power
requirements, and assign virtual LAN (VLAN) parameters.
The EX4300 is hardware-ready (with future software support) to
support the IEEE 802.3az standard for Energy Efficient Ethernet
(EEE) functionality, reducing power consumption of copper
physical layers (PHY) during periods of low link utilization.
support the IEEE 802.3az standard for Energy Efficient Ethernet
(EEE) functionality, reducing power consumption of copper
physical layers (PHY) during periods of low link utilization.
In addition, the EX4300 supports rich quality of service (QoS)
functionality for prioritizing data, voice, and video traffic. The
switches support 12 quality-of-service (QoS) queues on every
port, enabling them to maintain multilevel, end-to-end traffic
prioritizations. The EX4300 also supports a wide range of policy
options, including priority and shaped deficit weighted round-robin
(SDwRR) queuing.
functionality for prioritizing data, voice, and video traffic. The
switches support 12 quality-of-service (QoS) queues on every
port, enabling them to maintain multilevel, end-to-end traffic
prioritizations. The EX4300 also supports a wide range of policy
options, including priority and shaped deficit weighted round-robin
(SDwRR) queuing.
Security
The EX4300 line of Ethernet switches fully integrates with Juniper
Networks Unified Access Control (UAC), which consolidates
all aspects of a user’s identity, device, and location, enabling
administrators to enforce access control and security down to the
individual port or user levels.
Networks Unified Access Control (UAC), which consolidates
all aspects of a user’s identity, device, and location, enabling
administrators to enforce access control and security down to the
individual port or user levels.
The UAC solution is composed of three main components: Juniper
Networks Junos Pulse as the endpoint client (also available in
an agent-less mode); the Junos Pulse Access Control Service
running on a blade in a MAG Series Junos Pulse Gateway chassis
or on a dedicated MAG Series appliance; and UAC enforcement
points. working as an enforcement point with the UAC solution,
the EX4300 provides both standards-based 802.1X port-level
access control as well as L2-L4 policy enforcement based on user
identity, location, and/or device. A user’s identity, device type,
machine posture check, and location can be used to determine
whether access should be granted and for how long. If access is
granted, the switch assigns the user to a specific VLAN based on
authorization levels. The switch can also apply QoS policies or
mirror user traffic to a central location for logging, monitoring, or
threat detection by intrusion prevention systems.
Networks Junos Pulse as the endpoint client (also available in
an agent-less mode); the Junos Pulse Access Control Service
running on a blade in a MAG Series Junos Pulse Gateway chassis
or on a dedicated MAG Series appliance; and UAC enforcement
points. working as an enforcement point with the UAC solution,
the EX4300 provides both standards-based 802.1X port-level
access control as well as L2-L4 policy enforcement based on user
identity, location, and/or device. A user’s identity, device type,
machine posture check, and location can be used to determine
whether access should be granted and for how long. If access is
granted, the switch assigns the user to a specific VLAN based on
authorization levels. The switch can also apply QoS policies or
mirror user traffic to a central location for logging, monitoring, or
threat detection by intrusion prevention systems.
Additionally, a captive portal redirection feature redirects URLs
from the EX4300 to the MAG Series gateway running Pulse Access
Control Service for user authentication and authorization, making
the UAC solution a “single source of truth” for user and device
authentication and for enforcing role-based security policies.
from the EX4300 to the MAG Series gateway running Pulse Access
Control Service for user authentication and authorization, making
the UAC solution a “single source of truth” for user and device
authentication and for enforcing role-based security policies.
The EX4300 also provides a full complement of port security
features, including Dynamic Host Configuration Protocol (DHCP)
snooping, dynamic ARP inspection (DAI), IP Source Guard, and
media access control (MAC) limiting (per port and per VLAN) to
defend against internal and external spoofing, man-in-the-middle
and denial-of-service (DoS) attacks.
features, including Dynamic Host Configuration Protocol (DHCP)
snooping, dynamic ARP inspection (DAI), IP Source Guard, and
media access control (MAC) limiting (per port and per VLAN) to
defend against internal and external spoofing, man-in-the-middle
and denial-of-service (DoS) attacks.
In addition, EX4300 switches are hardware-ready (with future
software support) to support IEEE 802.1ae MACsec on all 1GbE
and 10GbE ports (on the uplink module), providing support for
link-layer data confidentiality, data integrity, and data origin
authentication.
software support) to support IEEE 802.1ae MACsec on all 1GbE
and 10GbE ports (on the uplink module), providing support for
link-layer data confidentiality, data integrity, and data origin
authentication.