T1/E1 port configuration task list
186
SmartWare Software Configuration Guide
15 • T1/E1 port configuration
tion 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>
Mode: channel-group <group>
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
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 chapter 14,
“Serial port configuration”
on page 160 for more details about frame relay configu-
ration and chapter 24,
“PPP configuration”
on page 264 for PPP configuration.
Mode: hdlc
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
Step
Command
Purpose
1
[
name
] (prt-e1t1)[
slot/port
]# hdlc
Entering the hdlc configuration mode
Step
Command
Purpose
1
[
name
] (ch-grp)[
group-name
]#hdlc
Entering the hdlc configuration mode
Step
Command
Purpose
1
[
name
] (hdlc)#crc-type {crc16 | crc32}
Selects the checksum-type to be used.
Default:
crc16
Step
Command
Purpose
1
[
name
] (hdlc)#encapsulation {framere-
lay | ppp}
Specifies the encapsulation type of hdlc.
Default:
no encapsulation
