MTU Default and Maximum Values for Physical Interface Modules

 

Table 1 lists maximum transmission unit (MTU) values for the SRX Series Services Gateways Physical Interface Modules (PIMs).

Table 1: MTU Values for the SRX Series Services Gateways PIMs

PIM

Physical Interface MTU (Bytes)-Default

Logical Interface MTU (Bytes)-Default

Maximum MTU (Bytes)

1-Port Gigabit Ethernet small form-factor pluggable (SFP) Mini-PIM

1514

1500

9010

1-Port small form-factor pluggable (SFP) Mini-PIM

1514

1500

1518

DOCSIS Mini-PIM

1504

1500

1504

Serial Mini-PIM

1504

1500

2000

T1/E1 Mini-PIM

1504

1500

2000

Dual CT1/E1 GPIM

1504

1500

9000

Quad CT1/E1 GPIM

1504

1500

9000

8-Port Serial GPIM

1504

1500

9192

1-Port Clear Channel DS3/E3 GPIM

1504

1500

9192

2-Port 10 Gigabit Ethernet XPIM

1514

1500

9192

8-Port Gigabit Ethernet Small Form-Factor Pluggable (SFP) XPIM

1514

1500

9192

16-Port Gigabit Ethernet XPIM

1514

1500

9192

24-Port Gigabit Ethernet XPIM

1514

1500

9192

ADSL2+ Mini-PIM (Encapsulation)

atm-snap

1512

1504

1512

atm-vcmux

1512

1512

1512

atm-nlpid

1512

1508

1512

atm-cisco-nlpid

1512

1510

1512

ether-over-atm-llc

1512

1488

1512

atm-ppp-llc

1512

1506

1512

atm-ppp-vcmux

1512

1510

1512

atm-mlppp-llc

1512

1500

1512

ppp-over-ether-over-atm-llc

1512

1480

1512

 

VDSL- Mini-PIM AT mode (Encapsulation)

atm-snap

1514

1506

1514

atm-vcmux

1514

1514

1514

atm-nlpid

1514

1510

1514

atm-cisco-nlpid

1514

1512

1514

ether-over-atm-llc

1514

1490

1524

atm-ppp-llc

1514

1508

1514

atm-ppp-vcmux

1514

1512

1514

atm-mlppp-llc

1514

1500

1514

ppp-over-ether-over-atm-llc

1514

1482

1514

 

VDSL- Mini-PIM PT mode

1514

1500

1514

 

G.SHDSL Mini-PIM (Encapsulation)

atm-snap

4482

4470

4482

atm-vcmux

4482

4470

4482

atm-nlpid

4482

4470

4482

atm-cisco-nlpid

4482

4470

4482

ether-over-atm-llc

4482

1500

4482

atm-ppp-llc

4482

4476

4482

atm-ppp-vcmux

4482

4480

4482

atm-mlppp-llc

4482

1500

4482

ppp-over-ether-over-atm-llc

4482

1492

4482