19-20
Cisco 10000 Series Router Quality of Service Configuration Guide
OL-7433-09
Chapter 19 Configuring Quality of Service for PVC Bundles
ATM PVC Selection
Creating an ATM Bundle Using a VC Class
You can use a VC class to configure an ATM PVC bundle. The VC class contains multiple configuration
parameters, including the method used for PVC selection. When you apply the VC class to the bundle,
the VC class parameters apply to all of the members of a bundle.
The parameters that you apply manually to the PVC bundle supersede the parameters that you apply by
associating a VC class with the bundle. Parameters that you apply to an individual PVC supersede the
parameters that you apply to a bundle.
To create an ATM bundle using a VC class, perform the following configuration tasks:
Step 10
Router(config-atm-vcb)# oam retry
up-count down-count retry-frequency
Configures parameters related to Operation, Administration, and
Maintenance (OAM) management for each PVC in the bundle.
up-count is the number of consecutive end-to-end F5 OAM
loopback cell responses that must be received in order to change
a PVC connection state to up.
down-count is the number of consecutive end-to-end F5 OAM
loopback cell responses that are not received in order to change a
PVC state to down.
retry-frequency is the frequency (in seconds) that end-to-end F5
OAM loopback cells are transmitted when a change in the
up/down state of a PVC is being verified. For example, if a PVC
is up and a loopback cell response is not received after specifying
retry-frequency, then loopback cells are sent at the
retry-frequency to verify whether the PVC is down.
Step 11
Router(config-atm-vcb)# oam-bundle
[manage] [frequency]
Enables end-to-end F5 Operation, Administration, and
Maintenance (OAM) loopback cell generation and OAM
management for all bundle members or a VC class that can be
applied to a VC bundle
(Optional) manage enables OAM management. If you omit this
keyword, loopback cells are sent, but the bundle is not managed.
(Optional) frequency is the number of seconds between
transmitted OAM loopback cells. Valid values are from 0 to 600
seconds. The default is 10 seconds.
Step 12
Router(config-atm-vcb)# ubr [pcr]
Configures unspecified bit rate (UBR) as the traffic shaping rule.
(Optional) pcr is the peak cell rate.
Step 13
Router(config-atm-vcb)# ubr+ pcr [mcr]
Configures UBR plus (UBR+) as the traffic shaping rule.
pcr is the peak cell rate.
(Optional) mcr is the minimum cell rate.
Step 14
Router(config-atm-vcb)# vbr-nrt pcr scr
[mbs]
Configures variable bit rate-nonreal-time (VBR-nrt) as the traffic
shaping rule.
pcr is the peak cell rate.
scr is the sustained cell rate.
(Optional) mbs is the maximum burst size.
Command Purpose