Configuring The T3 Frame Checksum - Juniper JUNOS 10.1 - CONFIGURATION GUIDE 1-2010 Configuration Manual

JUNOS 10.1 Network Interfaces Configuration Guide
Table 54: Subrate Values for T3 Digital Link Compatibility Mode (continued)
For information about subrating an E3 interface, see "Configuring the E3 CSU
Compatibility Mode" on page 571.

Configuring the T3 Frame Checksum

By default, T3 interfaces use a 16-bit frame checksum. You can configure a 32-bit
checksum, which provides more reliable packet verification. However, some older
equipment might not support 32-bit checksums.
On a channelized OC12 interface, the
FCS on each DS3 channel, you must include the
configuration for each channel.
To configure a 32-bit checksum, include the
interface-name t3-options]
To return to the default 16-bit frame checksum, delete the
the configuration:
To explicitly configure a 16-bit checksum, include the
interfaces interface-name t3-options]
592
Configuring the T3 Frame Checksum
5.7 Mbps 14.7 Mbps
6.0 Mbps 15.0 Mbps
6.3 Mbps 15.3 Mbps
6.6 Mbps 15.6 Mbps
6.9 Mbps 15.9 Mbps
7.2 Mbps 16.2 Mbps
7.5 Mbps 16.5 Mbps
7.8 Mbps 16.8 Mbps
8.1 Mbps 17.1 Mbps
8.4 Mbps 17.4 Mbps
8.7 Mbps 17.7 Mbps
9.0 Mbps 18.0 Mbps
hierarchy level:
[edit interfaces interface-name t3-options]
fcs 32;
[edit]
user@host# delete interfaces t3-fpc/pic/port t3-options fcs 32
23.8 Mbps 32.8 Mbps
24.1 Mbps 33.1 Mbps
24.4 Mbps 33.4 Mbps
24.7 Mbps 33.7 Mbps
25.0 Mbps 34.0 Mbps
25.3 Mbps 34.3 Mbps
25.6 Mbps 34.6 Mbps
25.9 Mbps 34.9 Mbps
26.2 Mbps 35.2 Mbps
26.5 Mbps 35.5 Mbps
26.8 Mbps 35.8 Mbps
27.1 Mbps 36.1 Mbps
fcs statement is not supported. To configure
t3-options fcs
fcs statement at the
fcs 32
fcs statement at the
hierarchy level:
41.8 Mbps
42.1 Mbps
42.4 Mbps
42.7 Mbps
43.0 Mbps
43.3 Mbps
43.6 Mbps
43.9 Mbps
44.2 Mbps
statement in the
[edit interfaces
statement from
[edit