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9-3
ATM Switch Router Software Configuration Guide
OL-7396-01
Chapter 9 Configuring Resource Management
Processor Feature Card Functionality (Catalyst 8510 MSR and LightStream 1010)
Processor Feature Card Functionality (Catalyst 8510 MSR and
LightStream 1010)
Two types of feature cards are available for the Catalyst 8510 MSR and LightStream 1010 ATM switch
routers: FC-PCQ and FC-PFQ. Each card provides the required ATM Forum Traffic Management
features. FC-PCQ contains a subset of the FC-PFQ features, as described in Table 9-2.
Note To determine which feature card you have installed, enter the show hardware EXEC command. Either
FeatureCard1, for FC-PCQ, or FC-PFQ displays in the Ctrlr-Type column.
Shaping Per-port pacing, per-CBR VC, per-CBR transit VP, per-shaped
CBR VP tunnel (128 shaped VP tunnels total), and hierarchical
VP tunnels
Policing (UPC
9
)
10
Dual leaky bucket
Frame mode VC-merge Supported
Point-to-multipoint VC
(multicast)
Multiple leafs per output port, per point-to-multipoint
Network clock switchover
10
Programmable clock selection criteria
Nondisruptive snooping Per-VC or per-VP
Hierarchical VP tunnel Maximum of 240 VP tunnels.
1. CBR = constant bit rate
2. VBR-RT = variable bit rate real time
3. VBR-NRT = variable bit rate non-real time
4. UBR = unspecified bit rate
5. ABR = available bit rate
6. EFCI = explicit forward congestion indication
7. RS = rate scheduling
8. WRR = weighted round-robin
9. UPC = usage parameter control
10. Performed by feature card
Table 9-1 Switch Processor Feature Card (continued)
Feature Description
Table 9-2 FC-PCQ and FC-PFQ Feature Comparison
Feature FC-PCQ FC-PFQ
Traffic classes CBR
1
, VBR-RT
2
, VBR-NRT
3
,
ABR
4
(EFCI
5
and RR
6
), UBR
7
CBR, VBR-RT, VBR-NRT, ABR
(EFCI and RR), UBR
Output queuing Four classes per port Per-VC or per-VP
Output scheduling SP
8
RS
9
and WRR
10
Intelligent early packet discard Multiple fixed thresholds Multiple dynamic thresholds