Name: Juniper EX3400
Brand: Juniper
Rating: 5 (1 reviews)

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server (DNS, Port, and TFTP Service)

Syntax server address <logical-system logical-system-name> <routing-instance

routing-instance-name>;

Hierarchy Level [edit forwarding-options helpers domain],

[edit forwarding-options helpers domain interface interface-name],

[edit forwarding-options helpers port port-number],

[edit forwarding-options helpers port port-number interface interface-name],

[edit forwarding-options helpers tftp],

[edit forwarding-options helpers tftp interface interface-name]

Release Information Statement introduced before Junos OS Release 7.4.

Statement introduced in Junos OS Release 9.0 for EX Series switches.

Statement introduced for port helpers in Junos OS Release 17.2R1 for EX4300 switches.

Support for multiple server instances for a given port introduced in Junos OS Release 17.2

for MX Series routers.

Support for multiple server instances for a given port introduced in Junos OS Release

17.3R1 for EX9200 switches.

Description Specify the DNS or TFTP server for forwarding DNS or TFTP requests, or specify a

destination server address for forwarding LAN broadcast packets as unicast traffic for a

custom-configured UDP port.

When configuring port helpers, in releases prior to Junos OS Release 17.2, only one server

can be specified for a given port. For Junos OS Release 17.2 and later, multiple servers

can be specified for a given port at the global or interface-specific level. When multiple

servers are specified, the same packet, with the originator IP address and port requests,

is forwarded to the different configured servers; the payload of the UDP packet is not

modified.

Options address—IP address of the server.

logical-system logical-system-name—(Optional) Logical system name of the server.

routing-instance [ routing-instance-names ]—(Optional) Set the routing instance name

or names that belong to the DNS server or TFTP server.

Required Privilege

Level

interface—To view this statement in the configuration.

interface-control—To add this statement to the configuration.

Documentation

• Configuring DNS and TFTP Packet Forwarding

• Configuring Port-based LAN Broadcast Packet Forwarding on page 133

Chapter 12: Configuration Statements (DHCP and DHCP Relay)

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