Juniper EX3400 Features Guide

NOTE: When you include the interface-description in the username, the
delimiter must not be a character that is part of the interface description. For
example, if the text description is configured as “Backbone
connection/PHL01”, you cannot use the forward slash (/) as the delimiter.
Required Privilege
Level
interface—To view this statement in the configuration.
interface-control—To add this statement to the configuration.
Related
Documentation
• Using External AAA Authentication Services with DHCP on page 101
• Creating Unique Usernames for DHCP Clients on page 103
detection-time
Syntax detection-time {
threshold milliseconds;
}
Hierarchy Level [edit system services dhcp-local-server liveness-detection method bfd],
[edit system services dhcp-local-server dhcpv6 liveness-detection method bfd],
[edit forwarding-options dhcp-relay liveness-detection method bfd], [edit forwarding-options
dhcp-relay dhcpv6 liveness-detection method bfd],
[edit system services dhcp-local-server group group-name liveness-detection method bfd],
[edit system services dhcp-local-server dhcpv6 group group-name liveness-detection method
bfd],
[edit forwarding-options dhcp-relay group group-name liveness-detection method bfd],
[edit forwarding-options dhcp-relay dhcpv6 group group-name liveness-detection method
bfd]
Release Information Statement introduced in Junos OS Release 12.1.
Statement introduced in Junos OS Release 12.3R2 for EX Series switches.
Description Enable failure detection. The BFD failure detection timers are adaptive and can be adjusted
to be faster or slower. For example, the timers can adapt to a higher value if the adjacency
fails, or a neighbor can negotiate a higher value for a timer than the one configured.
The remaining statement is explained separately. See CLI Explorer.
Required Privilege
Level
routing—To view this statement in the configuration.
routing-control—To add this statement to the configuration.
Related
Documentation
• Example: Configuring Group Liveness Detection for DHCP Local Server Clients
• Example: Configuring Global Liveness Detection for DHCP Relay Agent Clients
Copyright © 2017, Juniper Networks, Inc.166
DHCP and Other System Services Feature Guide for EX2300, EX3400, and EX4300 Switches

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