Juniper EX3400 Features Guide

Suppressing DHCP Access, Access-Internal, and Destination Routes . . . . . . . . . . 81
Preventing DHCP from Installing Access, Access-Internal, and Destination Routes
by Default . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Chapter 5 DHCPv6 Relay Agent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
DHCPv6 Relay Agent Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Inserting DHCPv6 Interface-ID Option (Option 18) In DHCPv6 Packets . . . . . . . . 86
Verifying and Managing DHCPv6 Relay Configuration . . . . . . . . . . . . . . . . . . . . . . 87
Chapter 6 Configuring Groups of DHCP Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Grouping Interfaces with Common DHCP Configurations . . . . . . . . . . . . . . . . . . . 89
Guidelines for Configuring Interface Ranges for Groups of DHCP Interfaces . . . . 90
Configuring Group-Specific DHCP Local Server Options . . . . . . . . . . . . . . . . . . . . 91
Configuring Group-Specific DHCP Relay Options . . . . . . . . . . . . . . . . . . . . . . . . . 92
Chapter 7 DHCP Liveness Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
DHCP Liveness Detection Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Configuring Detection of DHCP Local Server Client Connectivity . . . . . . . . . . . . . 96
Configuring Detection of DHCP Relay or DHCP Relay Proxy Client
Connectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Chapter 8 Managing DHCP Clients . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Using External AAA Authentication Services with DHCP . . . . . . . . . . . . . . . . . . . 101
Configuring Passwords for Usernames . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Creating Unique Usernames for DHCP Clients . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Specifying the Maximum Number of DHCP Clients Per Interface . . . . . . . . . . . . 106
DHCP Local Server Handling of Client Information Request Messages . . . . . . . . 107
Enabling Processing of Client Information Requests . . . . . . . . . . . . . . . . . . . . . . 108
Chapter 9 Forcing Dynamic Reconfiguration of Clients from a DHCP Local Server . . 111
Understanding Dynamic Reconfiguration of Extended DHCP Local Server
Clients . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Default Client/Server Interaction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Dynamic Client/Server Interaction for DHCPv4 . . . . . . . . . . . . . . . . . . . . . . . 112
Dynamic Client/Server Interaction for DHCPv6 . . . . . . . . . . . . . . . . . . . . . . . 112
Manually Forcing the Local Server to Initiate the Reconfiguration
Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Action Taken for Events That Occur During a Reconfiguration . . . . . . . . . . . . 113
Configuring Dynamic Client Reconfiguration of Extended Local Server
Clients . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Requesting DHCP Local Server to Initiate Reconfiguration of Client Bindings . . . 116
Configuring Dynamic Reconfiguration Attempts for DHCP Clients . . . . . . . . . . . . 117
Configuring Deletion of the Client When Dynamic Reconfiguration Fails . . . . . . . 118
Configuring Reconfiguration of the Client on Receipt of RADIUS-Initiated
Disconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
vCopyright © 2017, Juniper Networks, Inc.
Table of Contents

Juniper EX3400 Specifications

General

Switch type	Managed
Switch layer	L2/L3
Quality of Service (QoS) support	Yes
Safety	UL-UL60950-1, C-UL CAN/CSA 22.2 No.60950-1, TUV/GS to EN 60950-1, CB-IEC60950-1, EN 60825-1
Form factor	1U
Product color	Black
Electromagnetic compatibility	FCC 47CFR 15 A, EN 55022 A, ICES-003 A, VCCI A, AS/NZS CISPR 22 A, CISPR 22 A, EN 55024, EN 300386, CE
SFP+ module slots quantity	4
QSFP+ module slots quantity	2
Installed SFP+ modules quantity	0
Basic switching RJ-45 Ethernet ports type	Gigabit Ethernet (10/100/1000)
Basic switching RJ-45 Ethernet ports quantity	48
Memory type	DRAM
Noise level	35 dB
Flash memory	2000 MB
Processor frequency	1000 MHz
Virtual stacking (units)	10
Throughput	250 Mpps
Jumbo frames	9216
MAC address table	32000 entries
Number of VLANs	4093
Networking standards	IEEE 802.1D, IEEE 802.1Q, IEEE 802.1ab, IEEE 802.1p, IEEE 802.1s, IEEE 802.1w, IEEE 802.1x, IEEE 802.3, IEEE 802.3ab, IEEE 802.3ad, IEEE 802.3ae, IEEE 802.3u, IEEE 802.3z
Virtual LAN features	Port-based VLAN
Copper ethernet cabling technology	10BASE-T, 100BASE-T, 1000BASE-T
Power consumption (max)	120 W
Number of power supply units	1
Operating altitude	0 - 3048 m
Non-operating altitude	3048 - 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 %
DHCP features	DHCP server, DHCP client
Authentication	MAC-based authentication, Port-based authentication
Security algorithms	802.1x RADIUS, HTTPS, SNMP, SSH-2
Fiber ethernet cabling technology	1000BASE-X

Weight and Dimensions

Depth	350 mm
Width	437 mm
Height	44 mm
Weight	5740 g