Juniper SRX300 Series Reference Guide

Table 10 on page 26 lists maximum transmission unit (MTU) values for VDSL- Mini-PIM AT mode
(Encapsulation).
Table 10: MTU Values for VDSL- Mini-PIM AT mode (Encapsulation)
Maximum MTU (Bytes)
Logical Interface MTU
(Bytes)–Default
Physical Interface MTU
(Bytes)–DefaultMini-PIM
VDSL- Mini-PIM AT mode (Encapsulation)
151415061514atm-snap
151415141514atm-vcmux
151415101514atm-nlpid
151415121514atm-cisco-nlpid
152414901514ether-over-atm-llc
151415081514atm-ppp-llc
151415121514atm-ppp-vcmux
151415001514atm-mlppp-llc
151414821514ppp-over-ether-over-atm-llc
151415001514VDSL- Mini-PIM PT mode
Power over Ethernet Support on SRX550 High Memory Services Gateway
Interfaces
Power over Ethernet (PoE) supports the implementation of the IEEE 802.3 af and IEEE 802.3 at standards,
which allow both data and electric power to pass over a copper Ethernet LAN cable.
The SRX550 High Memory Services Gateway and SRX320 Services Gateway (PoE model) provide PoE
ports, which supply electric power over the same ports that are used for connecting network devices. PoE
ports allow you to plug in devices that require both network connectivity and electric power, such as voice
over IP (VoIP), IP phones, and wireless access points.
26

Juniper SRX300 Series Specifications

General

Memory	4 GB
CPU	Intel Atom
Storage	8 GB
Operating Temperature	32°F to 104°F (0°C to 40°C)
Humidity	10% to 90% noncondensing