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Juniper EX3300 Hardware Guide

Juniper EX3300
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Table of Contents
About the Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
Documentation and Release Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
Supported Platforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
Using the Examples in This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
Merging a Full Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi
Merging a Snippet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi
Documentation Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii
Documentation Feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xix
Requesting Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xix
Self-Help Online Tools and Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . xix
Opening a Case with JTAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xx
Part 1 Overview
Chapter 1 Interfaces Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
EX Series Switches Interfaces Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Network Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Special Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Understanding Interface Naming Conventions on EX Series Switches . . . . . . . . . . 6
Physical Part of an Interface Name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Logical Part of an Interface Name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Wildcard Characters in Interface Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Understanding Aggregated Ethernet Interfaces and LACP . . . . . . . . . . . . . . . . . . . 8
Link Aggregation Group (LAG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Link Aggregation Control Protocol (LACP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Understanding the Algorithm Used to Hash LAG Bundle and Egress Next-Hop
ECMP Traffic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Understanding the Hashing Algorithm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
IP (IPv4 and IPv6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
MPLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
MAC-in-MAC Packet Hashing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Layer 2 Header Hashing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Understanding How Energy Efficient Ethernet Reduces Power Consumption on
Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Understanding Local Link Bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Understanding Layer 3 Subinterfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Understanding Unicast RPF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Unicast RPF for Switches Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Unicast RPF Implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Unicast RPF Packet Filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Bootstrap Protocol (BOOTP) and DHCP Requests . . . . . . . . . . . . . . . . . 20
iiiCopyright © 2015, Juniper Networks, Inc.

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Juniper EX3300 Specifications

General IconGeneral
Ethernet LANYes
Authentication methodRADIUS, TACACS+
Connectivity technologyWired
Ethernet interface typeGigabit Ethernet
Number of VLANs4096
Networking standardsIEEE 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 rates10, 100, 1000 Mbit/s
Copper ethernet cabling technology1000BASE-T, 100BASE-TX, 10BASE-T
Console port-
ExpressCard slotNo
Fiber ports quantity4
USB 2.0 ports quantity0
Basic switching RJ-45 Ethernet ports quantity48
Throughput130 Mpps
Number of queues8
MAC address table16000 entries
Maximum data transfer rate176 Gbit/s
Supported data transfer rates10, 100, 1000Mbps
Switch typeManaged
Switch layerL2
Security algorithmsSSH-2
Power sourceAC
AC input voltage100 - 240 V
Power consumption (typical)100 W
Form factor1U
Product colorBlack
Flash memory1024 MB
Processor frequency1000 MHz
Compatible operating systemsJunos
Operating altitude0 - 3049 m
Non-operating altitude0 - 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 protocolsIPv6
Weight and Dimensions IconWeight and Dimensions
Depth310 mm
Width437 mm
Height44 mm
Weight4900 g

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