Juniper EX3400 Features Guide

For DHCPv4:
user@host> request dhcp server reconfigure 192.168.27.3
For DHCPv6:
user@host> request dhcpv6 server reconfigure 2001:db8:1111:2222::
•
Specify the client ID of a DHCPv6 client.
user@host> request dhcpv6 server reconfigure
LL_TIME0x1-0x2e159c0-00:10:94:00:00:02
•
Specify the session ID of a DHCPv6 client.
user@host> request dhcpv6 server reconfigure 5
•
Specify the MAC address of a DHCPv4 client.
user@host> request dhcp server reconfigure 00:00:5E:00:53:67
•
Specify an interface; reconfiguration is attempted for all clients on this interface.
user@host> request dhcp server reconfigure interface fe-0/0/0.100
•
Specify a logical system; reconfiguration is attempted for all clients or the specified
clients in this logical system.
user@host> request dhcp server reconfigure all logical-system ls-bldg5
•
Specify a routing instance; reconfiguration is attempted for all clients or the specified
clients in this routing instance.
user@host> request dhcp server reconfigure all routing-instance ri-boston
Related
Documentation
Configuring Dynamic Client Reconfiguration of Extended Local Server Clients on page 114•
• request dhcp server reconfigure on page 362
Configuring Dynamic Reconfiguration Attempts for DHCP Clients
You can configure how many attempts the local server makes to initiate reconfiguration
of the DHCP client by sending forcerenew or reconfigure messages. You can also specify
how long the server waits between attempts. By default, eight attempts are made and
the initial interval is two seconds.
Each successive attempt doubles the interval between attempts. For example, if the first
value is 2, the first retry is attempted 2 seconds after the first attempt fails. The second
retry is attempted 4 seconds after the first retry fails. The third retry is attempted 8
seconds after the second retry fails, and so on. A group configuration takes precedence
over a DHCP local server configuration.
(Optional) To configure DHCP local server reconfiguration behavior for all DHCP clients:
1. Specify the number of reconfiguration attempts.
117Copyright © 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