Cbr Clocking; Using The Map Command - Nortel Passport 8250 Command Line Interface Manual

CBR clocking

The following rules apply for CBR clocking:
• SRTS CBR clocking is for DS-1/E1 unstructured services
• Synchronous CBR clocking is for DS-1/E1 unstructured and structured
services
• SRTS and synchronous CBR clock modes can be used for different ports
on a service board

Using the map command

The map command creates DS-1/E1 unstructured, structured Basic, and
structured CAS connections. The syntax of the command is:
map <port#i>[,<#j>] [<time slot>] <VPI#k> <VCI#l>
[cdvt=<value>] [PartialFill=<value>]
[MaxBuffSize=<value>] [CAS=<cas type>]
[cbrclock=<cbrClockMode>]
where
is the first port number
<port#i>
is the last port number in a range of port numbers
[,<#j>]
[<time slots>]
connection in hexadecimal format
is the VPI number assigned to the ports
<VPI#k>
is the VCI number assigned to the ports. The VCI number
<VCI#l>
increments by one for each port.
[cdvt=<value>]
8250 tolerates in the cell stream without producing errors on the CBR
interface. It is measured in 10 microsecond intervals.
[PartialFill=<value>]
cell before the ATM cell transmits onto the ATM network
Chapter 3 Provisioning ports and connections 37
is the bitmap of the assigned time slots for the
is the cell delay variation tolerance (cdvt) that Passport
is the number of octets that is used in an ATM
Passport 8250 Command Line Interface Guide R2.2