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SSG 20 Hardware Installation and Configuration Guide
74
Table 19: Fields in E1 Physical Layer Tab Window
Figure 35: E1 Frame Relay Tab Window
Table 20: Fields in E1 Frame Relay 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.
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.