Figure B-4 Slot-Level Cac Bandwidth Calculations Performed With Default Settings - Lucent Technologies Stinger MRT 19 Getting Started Manual

Hosted Operation of Cascaded Stinger MRT units
Traffic management in hosted MRT systems
Parameter
allow-guaranteed-up-stre
am-bandwidth
port-cac-enable
port-over-subscription
slot-cac-enable
slot-over-subscription
enable
over-subscription
With the default CAC configuration, for a PVC connection request from a remote
LIM to a host trunk, the system performs bandwidth calculations in the sequence
shown in Figure B-4:
1
2
3
Figure B-4. Slot-level CAC bandwidth calculations performed with default settings
ASCADE high-speed-slot-static-config:
ver-subscription
IM slot-static-config:
llow-guaranteed-up-stream-bandwidth
lot-cac-enable
lot-cac-oversubscription
LIM port CAC is disabled by default. To enable it, you must set cac-preference to
provisioning-time system-wide. For details, see the Stinger ATM Configuration
Guide.
In addition, you must configure the LIM's slot-static-config profile by setting
port-cac-enable to yes, with a nonzero value for port-over-subscription.
B-10
Setting
Guaranteed upstream bandwidth. The system uses this
value for CAC purposes. For information about
allocating LIM bandwidth, see the Stinger ATM
Configuration Guide.
Enable/disable CAC on the LIM's ports.
Factor (from 0 to 10,240) by which a LIM port allows
oversubscription to the port PHY bandwidth. A value of
zero disables port CAC.
Enable/disable CAC on the LIM slot. Slot-level CAC is
enabled by default with this new setting.
Factor (from 0 to 10,240) by which a LIM slot allows
oversubscription to its provisioned guaranteed
upstream bandwidth. A value of zero disables slot CAC.
Enable/disable CAC on the trunk or cascade port.
Trunk port CAC is enabled by default.
Factor (from 0 to 10,240) by which a trunk port allows
oversubscription to its PHY bandwidth.
Remote shelf LIM slot bandwidth
Host trunk port bandwidth
Host cascade port bandwidth
Stinger MRT #1
TRUNK high-speed-slot-static-config:
3
over-subscription
EXP1 EXP2
Stinger MRT #2
1
Stinger® MRT Getting Started Guide
2
No trunk
EXP1 EXP2