Configuring The Pos Checksum; Configuring Pos Scrambling - Extreme Networks PoS Installation And User Manual

Table 3-5: PPP Commands (continued)
Command
config ppp user <name> {encrypted}
{<password>} ports <portlist>
show ppp {<portlist>} {detail}
unconfig ppp ports <portlist>
The following command is an enhanced application of the existing ExtremeWare
create account
local database entry that is used to authenticate PPP peers.
create account pppuser <name> {encrypted} {<password>}
The PPP use of this command is described in "Creating an Authentication Database
Entry" on page 3-31.

Configuring the PoS Checksum

To configure the size of the HDLC Frame Check Sequence (FCS) to be used on the
specified SONET port, use the following command:
config ppp pos checksum [32 | 16] ports <portlist>
Choose either the 32-bit FCS or the 16-bit FCS. A 32-bit FCS is the default. RFC 2615
recommends the use of the 32-bit FCS.
For OC-3 applications, RFC 2615 allows the use of a 16-bit FCS, but
recommends using a 32-bit FCS. You should limit your use of the 16-bit FCS to
supporting interoperability with equipment that does not support the 32-bit FCS.
The following command example sets the FCS to 16 for port 1 of the PoS module
installed in slot 8 of the BlackDiamond switch.
config ppp pos checksum 16 ports 8:1

Configuring PoS Scrambling

To enable or disable payload data scrambling on the specified port, use the following
command:
Packet Over SONET Module Installation and User Guide
command. The
pppuser
Configuring and Monitoring PPP Functions
Description
Configures the user name and password that the
specified PPP ports use in the event the PPP
peer requests authentication.
Displays status information for PPP ports.
Resets the PPP configuration parameters for the
specified ports to their default values.
keyword is used to specify the name of a
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