Juniper EX3400 Features Guide

For DHCPv6:
[edit system services dhcp-local-server dhcpv6 group group-name]
user@host# set reconfigure
3. (Optional) Configure an authentication token. The DHCP local server then includes
this token inside the authentication option when it sends forcerenew or reconfigure
messages. If the service provider has previously configured the DHCP client with this
token, then the client can compare that token against the newly received token, and
reject the message if the tokens do not match. This functionality corresponds to RFC
3118, Authentication for DHCP Messages, section 4.
a. For all clients:
For DHCPv4:
[edit system services dhcp-local-server reconfigure]
user@host# set token token-value
For DHCPv6:
[edit system services dhcp-local-server dhcpv6 reconfigure]
user@host# set token token-value
b. For only the DHCP clients serviced by a group of interfaces:
For DHCPv4:
[edit system services dhcp-local-server group-name reconfigure]
user@host# set token token-value
For DHCPv6:
[edit system services dhcp-local-server dhcpv6 group group-name reconfigure]
user@host# set token token-value
4. For the DHCPv6 server only, you can include the strict statement. By default, the server
accepts solicit messages from clients that do not support server-initiated
reconfiguration. Including this statement causes the server to discard solicit messages
from nonsupporting clients; consequently the server does not bind these clients.
For all DHCPv6 clients:
[edit system services dhcp-local-server dhcpv6 reconfigure]
user@host# set strict
For only the DHCPv6 clients serviced by a group of interfaces:
[edit system services dhcp-local-server dhcpv6 group group-name reconfigure]
user@host# set strict
5. (Optional) Configure how the server attempts reconfiguration.
See “Configuring Dynamic Reconfiguration Attempts for DHCP Clients” on page 117.
6. (Optional) Configure the response to a failed reconfiguration.
115Copyright © 2017, Juniper Networks, Inc.
Chapter 9: Forcing Dynamic Reconfiguration of Clients from a 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