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ATM Switch Router Software Configuration Guide
OL-7396-01
Chapter 7
Configuring Virtual Connections
Configuring PVP Connections
Note
When configuring PVP connections, begin with lower virtual path identifier (VPI) numbers. Using low
VPI numbers allows more efficient use of the switch fabric resources.
Note
The row index for
rx-cttr
and
tx-cttr
must be configured before using this optional parameter. See
Chapter 9, “Configuring Resource Management.”
Note
This parameter specifies the weight assigned to the output VC for weighted round robin scheduling and
is an integer in the range of 1 to 15.This parameter is valid only on systems equipped with the switch
processor feature card. (Catalyst 8540 MSR and Catalyst 8510 MSR and LightStream 1010 with
FC-PFQ). For more information on scheduling, see “Scheduling Output” in the Guide to ATM
Technology.
Note
The
sched
option is only available on OC-48c interfaces. Each OC-48c interface has four OC-12
schedulers. The sched variable is used to select the specific OC-12 scheduler for which the virtual circuit
is assigned for output on an interface and is therefore a number between 1 and 4.
Examples
The following example shows how to configure the internal cross-connect PVP within Switch B between
interfaces 4/0/0, VPI = 30, and interface ATM 1/1/1, VPI = 45:
Switch-B(config)#
interface atm 4/0/0
Switch-B(config-if)#
atm pvp 30 interface atm 1/1/1 45
The following example shows how to configure the internal cross-connect PVP within Switch C between
interfaces 0/1/3, VPI = 45, and interface ATM 1/1/0, VPI = 50:
Switch-C(config)#
interface atm 0/1/3
LS1010(config-if)#
atm pvp 45 interface atm 1/1/0 50
Each subsequent PVP cross connection and link must be configured until the VP is terminated to create
the entire PVP.
Displaying PVP Configuration
To show the ATM interface configuration, use the following EXEC command:
Command
Purpose
show atm vp
[
interface atm
card
/
subcard
/
port vpi
]
Shows the ATM VP configuration.