Configuring Pos Interface Crc Size In Hdlc Framing; Setting The Mtu Size - Cisco ONS 15454 SDH Configuration Manual
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Also See for ONS 15454 SDH:
- User manual (62 pages) ,
- Manual (40 pages) ,
- Reference manual (22 pages)
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Chapter 5 Configuring POS
Command
Step 3
Router(config-if)# encapsulation type
Step 4
Router(config-if)# no shutdown
Step 5
Router(config)# end
Step 6
Router# copy running-config startup-config
Configuring POS Interface CRC Size in HDLC Framing
To configure additional properties to match those of the interface at the far end, perform the following
steps, beginning in global configuration mode:
Command
Step 1
Router(config)# interface pos number
Step 2
Router(config-if)# crc {16 | 32}
Step 3
Router(config-if)# end
Step 4
Router# copy running-config startup-config
Setting the MTU Size
To set the maximum transmission unit (MTU) size, perform the following steps, beginning in global
configuration mode:
Command
Step 1
Router(config)# interface pos number
Step 2
Router(config-if)# mtu bytes
Cisco ONS 15454 and Cisco ONS 15454 SDH Ethernet Card Software Feature and Configuration Guide, R8.0
Framing Mode, Encapsulation, and CRC Support
Purpose
Sets the encapsulation type. Valid values are:
•
hdlc—Cisco HDLC
lex—(default) LAN extension, special
•
encapsulation for use with Cisco ONS
Ethernet line cards. When the lex keyword is
used with GFP-F framing it is standard
Mapped Ethernet over GFP-F according to
ITU-T G.7041.
ppp—Point-to-Point Protocol
•
Restarts the shutdown interface.
Returns to privileged EXEC mode.
(Optional) Saves configuration changes to
NVRAM.
Purpose
Activates interface configuration mode to
configure the POS interface.
Sets the CRC value for HDLC framing. If the
device to which the POS module is connected does
not support the default CRC value of 32, set both
devices to use a value of 16.
The CRC value is fixed at a value of 32
Note
under GFP-F framing.
Returns to the privileged EXEC mode.
(Optional) Saves configuration changes to
NVRAM.
Purpose
Activates interface configuration mode to
configure the POS interface.
Configures the MTU size up to a maximum of
9000 bytes. See
Table 5-4
for default MTU sizes.
5-5
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