Juniper EX3300 Hardware Guide

Related
Documentation
vlan-id•
• vlan-tagging on page 229
Configuring a Layer 3 Subinterface (CLI Procedure)
EX Series switches use Layer 3 subinterfaces to divide a physical interface into multiple
logical interfaces, each corresponding to a VLAN. The switch uses the Layer 3
subinterfaces to route traffic between subnets.
To configure Layer 3 subinterfaces, you enable VLAN tagging and partition one or more
physical ports into multiple logical interfaces, each corresponding to a VLAN ID.
Before you begin, make sure you set up your VLANs. See Configuring VLANs for EX Series
Switches (CLI Procedure) or Configuring VLANs for EX Series Switches (J-Web Procedure).
To configure Layer 3 subinterfaces:
1. Enable VLAN tagging:
[edit interfaces interface-name]
user@switch# set vlan-tagging
2. Bind each VLAN ID to a logical interface:
[edit interfaces interface-name]
user@switch# set unit logical-unit-number vlan-id (VLAN Tagging and Layer 3 Subinterfaces)
vlan-id-number
Related
Documentation
Example: Configuring Layer 3 Subinterfaces for a Distribution Switch and an Access
Switch
•
• Verifying That Layer 3 Subinterfaces Are Working on page 238
• Understanding Layer 3 Subinterfaces on page 18
Configuring Unicast RPF (CLI Procedure)
Unicast reverse-path forwarding (RPF) can help protect your LAN from denial-of-service
(DoS) and distributed denial-of-service (DDoS) attacks on untrusted interfaces. Enabling
unicast RPF on the switch interfaces filters traffic with source addresses that do not use
the incoming interface as the best return path back to the source. When a packet comes
into an interface, if that interface is not the best return path to the source, the switch
discards the packet. If the incoming interface is the best return path to the source, the
switch forwards the packet.
NOTE: On EX3200, EX4200, and EX4300 switches, you can enable unicast
RPF only globally—that is, on all switch interfaces. You cannot enable unicast
RPF on a per-interface basis.
Before you begin:
97Copyright © 2015, Juniper Networks, Inc.
Chapter 2: Configuration Tasks

Juniper EX3300 Specifications

General

Ethernet LAN	Yes
Authentication method	RADIUS, TACACS+
Connectivity technology	Wired
Ethernet interface type	Gigabit Ethernet
Number of VLANs	4096
Networking standards	IEEE 802.1ab, IEEE 802.1D, IEEE 802.1Q, IEEE 802.1s, IEEE 802.1w, IEEE 802.1x, IEEE 802.3, IEEE 802.3ab, IEEE 802.3ad, IEEE 802.3x, IEEE 802.3z
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Copper ethernet cabling technology	1000BASE-T, 100BASE-TX, 10BASE-T
Console port	-
ExpressCard slot	No
Fiber ports quantity	4
USB 2.0 ports quantity	0
Basic switching RJ-45 Ethernet ports quantity	48
Throughput	130 Mpps
Number of queues	8
MAC address table	16000 entries
Maximum data transfer rate	176 Gbit/s
Supported data transfer rates	10, 100, 1000Mbps
Switch type	Managed
Switch layer	L2
Security algorithms	SSH-2
Power source	AC
AC input voltage	100 - 240 V
Power consumption (typical)	100 W
Form factor	1U
Product color	Black
Flash memory	1024 MB
Processor frequency	1000 MHz
Compatible operating systems	Junos
Operating altitude	0 - 3049 m
Non-operating altitude	0 - 4877 m
Storage temperature (T-T)	-40 - 70 °C
Operating temperature (T-T)	0 - 45 °C
Storage relative humidity (H-H)	0 - 95 %
Operating relative humidity (H-H)	10 - 85 %
Supported network protocols	IPv6

Weight and Dimensions

Depth	310 mm
Width	437 mm
Height	44 mm
Weight	4900 g