Juniper EX3300 Hardware Guide

Default Route Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
When to Enable Unicast RPF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
When Not to Enable Unicast RPF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Limitations of the Unicast RPF Implementation on EX3200, EX4200, and
EX4300 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Understanding IP Directed Broadcast for EX Series Switches . . . . . . . . . . . . . . . . 23
IP Directed Broadcast for EX Series Switches Overview . . . . . . . . . . . . . . . . . 23
IP Directed Broadcast Implementation for EX Series Switches . . . . . . . . . . . 23
When to Enable IP Directed Broadcast . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
When Not to Enable IP Directed Broadcast . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Understanding Interface Ranges on EX Series Switches . . . . . . . . . . . . . . . . . . . . 24
802.1Q VLANs Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Part 2 Configuration
Chapter 2 Configuration Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Configuring Gigabit Ethernet Interfaces (CLI Procedure) . . . . . . . . . . . . . . . . . . . . 32
Configuring VLAN Options and Interface Mode . . . . . . . . . . . . . . . . . . . . . . . . 32
Configuring the Link Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Configuring the IP Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Configuring Gigabit Ethernet Interfaces (J-Web Procedure) . . . . . . . . . . . . . . . . . 35
Port Role Configuration with the J-Web Interface (with CLI References) . . . . . . . . 41
Adding a Logical Unit Description to the Configuration . . . . . . . . . . . . . . . . . . . . . 45
Disabling a Physical Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Example: Disabling a Physical Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Disabling a Logical Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Configuring Flow Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Configuring the Interface Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Configuring Interface IPv4 Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Operational Behavior of Interfaces when the Same IPv4 Address is
Assigned to Them . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Configuring Interface IPv6 Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Configuring the Interface Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Configuring the Media MTU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Media MTU Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
How to Configure the Media MTU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Encapsulation Overhead by Encapsulation Type . . . . . . . . . . . . . . . . . . . . . . 56
Media MTU Sizes by Interface Type for M5 and M7i Routers with CFEB, M10
and M10i Routers with CFEB, and M20 and M40 Routers . . . . . . . . . . . . 57
Media MTU Sizes by Interface Type for M40e Routers . . . . . . . . . . . . . . . . . . 57
Media MTU Sizes by Interface Type for M160 Routers . . . . . . . . . . . . . . . . . . 59
Media MTU Sizes by Interface Type for M7i Routers with CFEB-E, M10i
Routers with CFEB-E, and M320 and M120 Routers . . . . . . . . . . . . . . . . 59
Media MTU Sizes by Interface Type for MX Series Routers . . . . . . . . . . . . . . . 60
Media MTU Sizes by Interface Type for T320 Routers . . . . . . . . . . . . . . . . . . . 61
Media MTU Sizes by Interface Type for T640 Platforms . . . . . . . . . . . . . . . . . 61
Media MTU Sizes by Interface Type for J2300 Platforms . . . . . . . . . . . . . . . . 62
Media MTU Sizes by Interface Type for J4300 and J6300 Platforms . . . . . . . 62
Media MTU Sizes by Interface Type for J4350 and J6350 Platforms . . . . . . . 63
Copyright © 2015, Juniper Networks, Inc.iv
Network Interfaces for EX4300 Switches

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