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ATM Interface
Type of Service:
Interface Types:
Data Rates:
ATM Layer:
Cell Rate:
Adaptation Layer:
No. of Ports per card:
No. of PVCs per card:
VPI Addressing Range:
VCI Addressing Range:
Traffic Queues:
Management Protocol:
Network Synchronization
External Clock Sources:
Internal to Node Source:
Clocking Hierarchy:
-10 IGX 8 Installation Manual, Release 8.2.0
Permanent Virtual Circuit (PVC)
User-to-Network (UNI) and Network-to-Network (NNI) per ITU
I.361 and I.363
T3 or E3
Physical Layer Convergence Protocol per AT&T publication
TA-TSY-00772 and 000773 for T3; ITU I-361 with HEC for E3
96,000 cells/sec. for T3, 80,000 cells/sec. for E3
AAL5
4
255
0–255
0–65535
CBR, VBR, and ABR
Interim Layer Management Interface (ILMI)
The IGX switch synchronizes to the nearest, highest-stratm clock available.
Any T1, E1, T3, E3, OC3 (STM-1) line, trunk, or optional external clock
inputs can serve a clock source.
T1: 1.544 MHz, 10 ppm (stratm 4)
E1: 2.048 MHz, 10 ppm (stratm 4)
Dynamic primary, secondary, and tertiary clocking
Without a defined external clock reference, the IGX defaults to its internal
clock source.
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