Patton electronic 2800 user manual Configuring Hdlc CRC-Type, Configuring Hdlc Encapsulation

OnSite 2800 Series User Manual 5 • T1/E1 port configuration

ration mode the encapsulation must be set to ‘hdlc’ as well followed by configuring at least one timeslot per the ‘timeslots’ command.

Mode: port e1t1 <slot> <port>

Step	Command	Purpose
1	[name] (prt-e1t1)[slot/port]# hdlc	Entering the hdlc configuration mode
Mode: channel-group <group>
Step	Command	Purpose
1	[name] (ch-grp)[group-name]#hdlc	Entering the hdlc configuration mode

Configuring HDLC CRC-Type

This command specifies the length of the checksum for calculating the CRC of the hdlc-frame. It can be either a 16-bit or a 32-bit checksum.

Mode: hdlc

Step	Command	Purpose
1	[name] (hdlc)#crc-type {crc16 crc32}	Selects the checksum-type to be used.
		Default: crc16

Configuring HDLC Encapsulation

The hdlc encapsulation command specifies what kinds of upper layer data are contained in the hdlc frames. Two encapsulation types are available, framerelay and ppp. Once the hdlc configuration mode has been entered, the procedure for setting up framerelay or ppp is exactly the same as for an X.21/V.35 serial port. For that reason, see 4, “Serial port configuration” on page 44 for details about frame relay configuration and the “OnSite Software Configuration Guide” for details about PPP configuration.

Mode: hdlc

Step	Command	Purpose
1	[name] (hdlc)#encapsulation {framere-	Specifies the encapsulation type of hdlc.
	lay ppp}	Default: no encapsulation

T1/E1 Configuration Examples

Here is a group of four configuration examples.

•Example 1: Frame Relay without a channel-group

•Example 2: Frame Relay with a channel-group

•Example 3: PPP without a channel-group

•Example 4: PPP with a channel-group

T1/E1 port configuration task list 64