9-4
ATM Switch Router Software Configuration Guide
OL-7396-01
Chapter9 Configuring Resource Management
Configuring Global Resource Management
Configuring Global Resource Management
Global resource management configurations affect all interfaces on the switch. The following sections
describe global resource management tasks:
Configuring the Default QoS Objective Table, page 9-5
Configuring the Switch Oversubscription Factor (Catalyst 8510 M SR and LightStream 1010), page
9-6
Configuring the Service Category Limit (Catalyst 8510 MSR and LightStream 1010), page 9-7
Configuring the ABR Congestion Notification Mode (Catalyst 8510 MSR and LightStream 1010),
page 9-8
Configuring the Connection Traffic Table, page 9-10
Intelligent tail (partial) packet
discard
Supported Supported
Selective cell marking and
discard
Multiple fixed thresholds Multiple, weighted, dynamic
thresholds
Shaping Per-port (pacing) Per-port pacing, per-CBR VC,
per-CBR transit VP, per-shaped
CBR VP tunnel (128shaped
VP tunnels total), and
hierarchical VPtunnels
Policing (UPC11) Dual mode, single leaky bucket Dual leaky bucket
Point-to-multipoint VC
(multicast)
One leaf per output port, per
point-to-multipoint
Multiple leafs per output port,
per point-to-multipoint
Network clock switch over Automatic upon failure Programmable clock selection
criteria
Nondisruptive snooping Per-port transmit or receive Per-VC or per-VP
Hierarchical VP tunnel12 Maximum of 62 VP tunnels
1. CBR = constant bit rate
2. VBR-NT = variable bit rate real time
3. VBR-NRT = variable bit rate non-real time
4. ABR = available bit rate
5. EFCI = explicit forward congestion indication
6. RR = relative rate
7. UBR = unspecified bit rate
8. SP = strict priority
9. RS = rate scheduling
10. WRR = weighted round-robin
11. UPC = usage parameter control
12. Available with FC-PFQ only
Table9-2 FC-PCQ and FC-PFQ Feature Comparison (continued)
Feature FC-PCQ FC-PFQ