Juniper EX3400 Features Guide

Junos OS includes an extended DHCP local server that enhances traditional DHCP server
operation by providing additional address assignment and client configuration functionality
and flexibility in a subscriber-aware environment. The extended DHCP local server enables
service providers to take advantage of external address-assignment pools and integrated
RADIUS-based configuration capabilities in addition to the continued support of traditional
local address pools. The address-assignment pools are considered external because
they are external to the DHCP local server. The pools are managed independently of the
DHCP local server, and can be shared by different client applications, such as DHCP or
PPPoE access. Table 7 on page 23 provides a comparison of the extended DHCP local
server and a traditional DHCP local server.
The extended DHCP local server provides an IP address and other configuration
information in response to a client request. The server supports the attachment of dynamic
profiles and also interacts with the local AAA Service Framework to use back-end
authentication servers, such as RADIUS, to provide DHCP client authentication. You can
configure the dynamic profile and authentication support on a global basis or for a specific
group of interfaces.
Table 7: Comparing the Extended DHCP Local Server to the Traditional
DHCP Local Server
Traditional
DHCP Local
Server
Extended DHCP
Local ServerFeature
XXLocal address pools
–XExternal, centrally-managed address pools
XXLocal configuration
–XExternal configuration using information from
address-assignment pools or RADIUS servers
–XDynamic-profile attachment
–XRADIUS-based subscriber authentication, and
configuration using RADIUS attributes and Juniper
Networks VSAs
–XIPv6 client support
XXDefault minimum client configuration
You can also configure the extended DHCP local server to support IPv6 clients. Both
DHCP local server and DHCPv6 local server support the specific address request feature,
which enables you to assign a particular address to a client.
23Copyright © 2017, Juniper Networks, Inc.
Chapter 2: DHCP Local Server

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