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AAC-3
®
, AAC-2
™
and CellSMART
®
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Common Modules (continued)
ALARM MODULE
Indicators: Critical, Major and Minor alarm indicators are viewable from the front
Alarm: ACO (Automatic Cut Off) button disables audible alarms
Confi guration backup: Flash
SERVICE DATA MODULE (SDM)
System indicators: Critical, Major and Minor
SDM Indicators: SDM status and monitored traffi c
Alarm: ACO (Automatic Cut Off) button disables audible alarms and ACO indicator
Confi guration backup: 1 Mbyte non-volatile confi guration on memory controlled by ISC module
Traffi c monitoring: Monitors up to 512 VCs.
Maximum monitoring throughput: Monitors VCs with a maximum aggregate rate equivalent to bi-directional
DS3 with 200-byte packets. Traffi c greater than bi-directional DS3 is subject to discard.
Select Protocol Modules
See the PM/PLM compatibility matrix on page 3 for available Protocol and Physical Layer Module combinations
CELL PROTOCOL MODULE
Protocols supported: ATM UNI, SMDS SNI
Connections: 256 VPCs, 4096 VCCs or combinations thereof up to 4096 total connections
QoS categories: CBR, nrt-VBR and rt-VBR
Output queuing: Separate CBR and VBR output queues with traffi c and congestion management capability.
Total queue depth: 4700 cells
Maximum burst size: 32, 105, 210 or maximum cells
Cell emission scheduling: Per port for VBR traffi c only or aggregate (CBR and VBR) traffi c
Congestion management: Early packet discard (EPD) and 4 VBR priorities, CBR not subject to congestion, Partial
Packet Discard (PPD)
ENHANCED SHAPING CELL PROTOCOL MODULE
Protocols supported: ATM UNI
Connections: 256 VPCs, 1023 VCCs or combinations of up to 1023 total connections, 94 VPLs
QoS categories: CBR, rt-VBR, nrt-VBR, UBR+, UBR
Output queuing: Total queue depth 128K cells, allocated between VCCs and VPCs
Cell emission scheduling: Per VC for all connections, nrt-VBR, UBR+ and UBR scheduled via a weighted-fair queuing (WFQ)
mechanism
Congestion management: Partial and early packet discard (EPD) implemented per VC
QUAD CELL PROTOCOL MODULE
Protocols supported: ATM UNI, SMDS SNI
Connections: 256 VPCs, or 1024 VCCs or combinations of up to 1024 total connections
QoS categories: CBR, nrt-VBR and rt-VBR
Output queuing: Separate CBR & VBR output queues, with traffi c and congestion management capabilities
Congestion management: Early packet discard (EPD) and 4 VBR priorities, CBR not subject to congestion, Partial
Packet Discard (PPD)
PACKET PROTOCOL MODULE/QUAD PACKET PROTOCOL MODULE
Protocols supported: Frame Relay, ATM DXI, HDLC, PPP, SMDS DXI
Frame Relay connections:
Packet PM: 2048 VCCs (AAL5) or DLCIs
Quad Packet PM: 512 VCCs (AAL5) or DLCIs per port
Services supported: FRF.5, FRF.8 (1490 to 1483 translation) and FRLM
Congestion management: Partial and early packet discard (EPD) and 4 VBR priorities