Cisco Systems 8600 Series manual Management, OAM Cells, ATF Summary, Features, Limitations

Management, OAM Cells

Management, OAM Cells

OAM cell processing:

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F5 OAM loopback

AIS

FERF

Cisco WAN switching Internal OAM

Functional Description

ATF Summary

Features

•Interworking: ATM to Frame Relay connections

•Connection Statistics

•Round Trip Delay measurements incorporated into the ForeSight algorithm

•Frame Based GCRA (FGCRA). This is an enhancement of the Generic Cell Rate Algorithm

•IBS (Initial Burst Size)

•cnfportq: 3 egress port queues are configurable CBR, VBR and VBR w/Foresight. (Queue Bin numbers and algorithm types are NOT user selectable.)

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BCM (Backward Congestion Messages)

ILMI and associated configuration options and statistics

Loopback functions: tstdly, tstconseg, addrmtlp, addloclp

Selftest/ Background tests

OAM flows: AIS, FERF, OAM loopback

ASI/2 E3 support

End-to-end status updates (per FR/ATM interworking)

Annex G and associated configuration options and statistics

ASI-1 as a clock source is supported.

Limitations

•Priority Bumping is not supported across the interface shelves, but is supported across the routing network.

•Statistical Line Alarms per Software Functional Specification (i.e., Bellcore standards).

•Programmable Opti Class: although 4 connection classes are supported: CBR, VBR, VBR with Foresight, ATF, and ATF with ForeSight. Configuration of egress port queues and BNI trunk queues for these connection classes is available.

•Port loopback tstport

Frame Relay to ATM Network and Service Interworking 12-11