SSG 20 Hardware Installation and Configuration Guide

Table 19: Fields in E1 Physical Layer Tab Window

Field

Description

 

 

Clocking

Sets the transmit clock on the interface.

 

 

Frame Checksum

Sets the size of checksum. Default is 16.

 

 

Framing Mode

Sets the framing format. Default is without CRC4.

 

 

Idle Cycles Flag

Sets the value that the interface transmits during idle cycles. Default

 

setting is 0x7E:

 

„ 0x7E (flags)

 

„ 0xFF (ones)

 

 

Start/End Flags

Sets the transmission of start and end flags to either filler or shared.

 

The default is filler.

 

 

Invert Data checkbox

Enables inverted transmission of unused data bits.

 

 

Time Slots

Sets the use of time slots on a T1 interface. Default is 0, all 32 time

 

slots used.

 

 

Figure 35: E1 Frame Relay Tab Window

Table 20: Fields in E1 Frame Relay Tab Window

Field

Description

 

 

No-Keepalive checkbox

Enables no-keepalives.

 

 

Type

Sets the frame relay LMI type:

 

„ ANSI: American National Standards Institute supports data rates

 

up to 8Mbps downstream and 1Mbps upstream.

 

„ ITU: International Telecommunications Union supports data

 

rates of 6.144 Mbps downstream and 640 kbps upstream.

 

 

Interface Name

Sets the subinterface name.

 

 

Inverse ARP checkbox

Enables inverse Address Resolution Protocol (ARP) for the

 

subinterface.

 

 

Frame Relay DLCI

Assigns a DLCI to the subinterface.

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Juniper Networks SSG 20 manual Fields in E1 Physical Layer Tab Window Description