Power Over Ethernet Support On Srx550 High Memory Services Gateway Interfaces - Juniper SRX300 Series Reference Manual

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)
Mini-PIM
VDSL- Mini-PIM AT mode (Encapsulation)
atm-snap
atm-vcmux
atm-nlpid
atm-cisco-nlpid
ether-over-atm-llc
atm-ppp-llc
atm-ppp-vcmux
atm-mlppp-llc
ppp-over-ether-over-atm-llc
VDSL- 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.
Physical Interface MTU
(Bytes)–Default
1514
1514
1514
1514
1514
1514
1514
1514
1514
1514
Logical Interface MTU
(Bytes)–Default
1506
1514
1510
1512
1490
1508
1512
1500
1482
1500
Maximum MTU (Bytes)
1514
1514
1514
1514
1524
1514
1514
1514
1514
1514
26