Juniper EX3300 EX3300-48T 데이터 시트
제품 코드
EX3300-48T
3
There are two PoE power mode settings on the EX3300 switches:
• Static mode, which allows customers to specify the maximum
PoE power setting on an individual port
• Class mode, which allows end devices to specify PoE class and
negotiate whether the switch can provide PoE power to the device
The EX3300 also supports the industry-standard Link Layer
Discovery Protocol (LLDP) and LLDP-Media Endpoint Discovery
(LLDP-MED), which enable the switches to automatically discover
Ethernet-enabled devices, determine their power requirements,
and assign virtual LAN (VLAN) parameters. LLDP-MED-based
granular PoE management allows the EX3300 to negotiate PoE
usage down to a fraction of a watt on powered devices, enabling
more efficient PoE utilization across the switch.
Discovery Protocol (LLDP) and LLDP-Media Endpoint Discovery
(LLDP-MED), which enable the switches to automatically discover
Ethernet-enabled devices, determine their power requirements,
and assign virtual LAN (VLAN) parameters. LLDP-MED-based
granular PoE management allows the EX3300 to negotiate PoE
usage down to a fraction of a watt on powered devices, enabling
more efficient PoE utilization across the switch.
The EX3300 supports the Institute of Electrical and Electronics
Engineers (IEEE) 802.3az standard for Energy Efficient Ethernet
(EEE) functionality, reducing power consumption of copper
physical layers (PhY) during periods of low link utilization.
Engineers (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 EX3300 supports rich quality-of-service (QoS)
functionality for prioritizing data, voice, and video traffic. The
switches support eight QoS queues on every port, enabling them to
maintain multilevel, end-to-end traffic prioritization. The EX3300
also supports a wide range of scheduling options, such as priority
and shaped deficit weighted round-robin (SDwRR) scheduling.
functionality for prioritizing data, voice, and video traffic. The
switches support eight QoS queues on every port, enabling them to
maintain multilevel, end-to-end traffic prioritization. The EX3300
also supports a wide range of scheduling options, such as priority
and shaped deficit weighted round-robin (SDwRR) scheduling.
An optional enhanced license for supporting additional L3 protocols
such as OSPF, Internet Group Management Protocol (IGMP v1/v2/
v3), and Protocol Independent Multicast (PIM) will be supported
in future. An external redundant power system (RPS) delivering
additional power resiliency is also available.
such as OSPF, Internet Group Management Protocol (IGMP v1/v2/
v3), and Protocol Independent Multicast (PIM) will be supported
in future. An external redundant power system (RPS) delivering
additional power resiliency is also available.
Data Center Gigabit Ethernet Server
Access
The EX3300 switches are optimized for GbE server access
deployments in the data center, with front-to-back and back-
to-front cooling. The four SFP+ uplink ports on the EX3300 can
operate at 10 Gbps simultaneously, offering up to 20GbE of uplink
connectivity to each of the dual aggregation switches.
deployments in the data center, with front-to-back and back-
to-front cooling. The four SFP+ uplink ports on the EX3300 can
operate at 10 Gbps simultaneously, offering up to 20GbE of uplink
connectivity to each of the dual aggregation switches.
Figure 3: Data center top-of-rack deployments
Security
The EX3300 switches fully interoperate with Juniper Networks
Unified Access Control, 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. working as an enforcement point within the UAC, the
EX3300 provides both standards-based 802.1X port-level access
control and Layer 2-4 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 not only grant or deny
access but also to determine the duration of access. 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 (IPS).
Unified Access Control, 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. working as an enforcement point within the UAC, the
EX3300 provides both standards-based 802.1X port-level access
control and Layer 2-4 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 not only grant or deny
access but also to determine the duration of access. 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 (IPS).
The EX3300 also provides a full complement of port security
features, including Dynamic host Configuration Protocol (DhCP)
snooping, dynamic ARP inspection (DAI), and media access control
(MAC) limiting 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), and media access control
(MAC) limiting to defend against internal and external spoofing,
man-in-the-middle, and denial-of-service (DoS) attacks.
In addition, the EX3300 switches are hardware ready (with
software support available in a future release) to support
IEEE 802.1ae MACSec, providing support for link layer data
confidentiality, data integrity, and data origin authentication.
software support available in a future release) to support
IEEE 802.1ae MACSec, providing support for link layer data
confidentiality, data integrity, and data origin authentication.
Junos Operating System
The EX3300 switches run the same Junos OS used by other EX
Series Ethernet Switches, as well as Juniper routers and Juniper
Networks SRX Series Services Gateways. 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 uses 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.
Series Ethernet Switches, as well as Juniper routers and Juniper
Networks SRX Series Services Gateways. 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 uses 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 Junos OS-powered products 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 Junos OS-powered products 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.
High Availability
The EX3300 line of Ethernet switches is designed to support
many of the same failover capabilities and high availability (hA)
functionality as the Juniper Networks EX4200 line of Ethernet
switches with Virtual Chassis technology.
many of the same failover capabilities and high availability (hA)
functionality as the Juniper Networks EX4200 line of Ethernet
switches with Virtual Chassis technology.
Each EX3300 switch is capable of functioning as a Routing Engine
when deployed in a Virtual Chassis configuration. when two or
more EX3300 switches are interconnected in a Virtual Chassis
configuration, all member switches share a single control plane.
Junos OS automatically initiates an election process to assign a
master (active) and backup (hot-standby) Routing Engine. An
integrated Layer 2 and Layer 3 graceful Routing Engine switchover
(GRES) feature maintains uninterrupted access to applications,
services, and IP communications in the unlikely event of a master
Routing Engine failure.
when deployed in a Virtual Chassis configuration. when two or
more EX3300 switches are interconnected in a Virtual Chassis
configuration, all member switches share a single control plane.
Junos OS automatically initiates an election process to assign a
master (active) and backup (hot-standby) Routing Engine. An
integrated Layer 2 and Layer 3 graceful Routing Engine switchover
(GRES) feature maintains uninterrupted access to applications,
services, and IP communications in the unlikely event of a master
Routing Engine failure.
Access Layer
EX8208
EX8208
EX3300
EX3300
10GbE Links
Connecting
EX3300 to
Aggregation/Core
Servers Dual
Homed
Collapsed
Core/
Aggregation
Layer
10GbE
1GbE