9InterfaceConfiguration Examples
9.5.6 Configuring P12s/DS1 for PPP and MLPPP
This example shows how a regular PPP interface is created, how a PPP group is created and how
parameters are set to it. Finally, the PPP interfaces are added to the group. The com mands are
availableonlyinP12s/DS1mode.
Command Description
NODE(config)# interface mp 4/0
NODE(cfg-if[mp4/0])#
Create an MLPPP group 0 to slot 4. The MLPPP
group is now floating and it is not yet possible to
forward traffic.
NODE(cfg-if[mp4/0])# ppp mp sequence-
number-type short
NODE(cfg-if[mp4/0])# ppp mp fragmenta-
tion static 100
NODE(cfg-if[mp4/0])# exit
Set the sequence number type to short. Enable
fragmentation with the maximum frame size of
100 bytes.
NODE(config)# interface pdh 4/1/0
NODE(cfg-if[pdh4/1/0])# pdh framed
NODE(cfg-if[pdh4/1/0])# interface pdh
4/1/0:0
NODE(cfg-if[pdh4/1/0:0)# pdh timeslots
all
NODE(cfg-if[pdh4/1/0:0)# port-protocol
ppp
Configure PPP links first to be regular PPP
interfaces.
NODE(cfg-if[pdh4/1/0:0)# crc 32 Configure the length of the check sum in the PPP
frame.
NODE(config)# interface pdh 4/1/1
NODE(cfg-if[pdh4/1/1])# ...
Repeat the PPP link configuration for the interfaces
pdh4/1/1 and pdh4/1/2 as s hown previously.
NODE(config)# interface mp 4/0
NODE(cfg-if[mp4/0])# ppp mp member pdh
4/1/0:0
NODE(cfg-if[mp4/0])# ppp mp member pdh
4/1/1:0
NODE(cfg-if[mp4/0])# ppp mp member pdh
4/1/2:0
Add PPP links to the MLPPP group.
Note that all PPP links associated to the same PPP
group are located in the same IFM.
MLPPP Differential Delay Configuration
In this example three member links are config ured to use differential delay mo nitoring for maximum
one-way differential delay target value o f 3
700 µs and restore value of 2500 to allow 1200 µs
variance tolerance. The objective i s to detect enduring link one-way differential delay increase of
3700 µs within 5 seconds and take the link out of use. The link will be taken b ack into use within
13 seconds if measured consecutive one-wa
y d ifferential delay is below maxim um differential
delay resto re value limit.
76.8610-50149A Tellabs
®
8600 Managed Edge System
© 2011 Tella bs. Tellabs
®
8609 Access Switch FP1.0 Tellabs
®
8611 Access Switch FP1.1 Interfa ce Configuration Guide
47
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