Resource Management Functions; Switch Fabric Functionality (Catalyst 8540 Msr) - Cisco Catalyst 8540 MSR Configuration Manual

Resource Management Functions

Resource Management Functions
The ATM switch router resource management software provides the following functions:
•
•
•
•
•
•
•
•

Switch Fabric Functionality (Catalyst 8540 MSR)

The switch fabric for the Catalyst 8540 MSR provides the required ATM Forum Traffic Management
features as described in
Table 9-1
Feature
Traffic classes:
Output queuing
Output scheduling
Intelligent early packet discard
Intelligent tail (partial) packet
discard
Selective cell marking and
discard
ATM Switch Router Software Configuration Guide
9-2
Network management interface—Includes operational configuration changes (take place
immediately), proposed configuration changes (take place on restart), user interface, and status.
Default quality of service (QoS) objective table management—Since User-Network Interface 3
(UNI 3) signalling does not provide information elements to signal QoS values, resource
management provides a table that contains default values for QoS.
Connection Traffic Table (CTT) management—Rather than store traffic parameters for each
connection in that connection's data structure, resource management manages a table of connection
traffic parameters, used by network and connection management.
Hardware resource management (Catalyst 8540 MSR)—The switch processor feature card provides
functionality that include statistic collection, and traffic policing usage parameter control (UPC).
See Configuring Global Resource Management, page 9-4
Hardware resource management (Catalyst 8510 MSR and LightStream 1010)—Different sets of
functionality are available with feature card per-class queueing (FC-PCQ) and feature card per-flow
queueing (FC-PFQ). FC-PCQ features include switch cell priority limits, interface queue sizes, and
thresholds. FC-PFQ features include threshold group configuration. The interface pacing feature is
available with both feature cards. See
and LightStream 1010), page 9-3
Resource Call Admission Control (RCAC)—Determines whether a virtual channel
connection/virtual path connection (VCC/VPC) can be admitted (allowed to be set up), based on the
available connection resources and requested traffic characteristics.
Logical interface creation and deletion.
Private Network-Network Interface (PNNI) metrics—resource management supplies PNNI with
link metrics for connection routing.
Table 9-1.
Switch Processor Feature Card
Processor Feature Card Functionality (Catalyst 8510 MSR
for detailed information.
Description
1 2
CBR , VBR-RT , VBR-NRT
Per-VC or per-VP
7 8
RS and WRR
Multiple dynamic thresholds
Supported
Multiple, weighted, dynamic thresholds
Chapter 9 Configuring Resource Management
for detailed information.
3 4 5 6
, UBR , ABR (EFCI)
OL-7396-01