Oam Cell Support; Diagnostics - Cisco BPX-BXM-155-8DX Installation And Configuration Manual

Chapter 22 Configuring Frame Relay to ATM Network and Service Interworking
Channel statistics of these general types are supported:
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Use these commands to configure and display channel statistics:
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OAM Cell Support

OAM cells are detected and transmitted by firmware. System software displays alarm indications
detected by the firmware. Additionally, loopbacks between the ATM-UNI and the ATM-CPE can be
established. ForeSight round-trip delay cells are generated by firmware upon software request.
System software deals with these OAM cell flows:
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These commands are associated with OAM cell status changes:
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Diagnostics

Loopbacks
Release 9.3.0, Part Number 78-10674-01 Rev. D0, July 2001
Cells received/transmitted, dropped, tagged as non-compliant or congested
Cell errors
AAL-5 frame counts, errors
clrchstats
cnfchstats
dspchstats
dspchstatcnf
dspchstathist
End-to-End AIS/FERF
Software displays on a per-connection basis.
External segment loopbacks
Software initiates loopback of ATM-CPE via user command. The SAR creates the loopback OAM
cell. External loopback cells received from the ATM-CPE are processed by the SAR.
Internal ForeSight round trip delay
Measures the RTD excluding trunk queueing delay on each ForeSight connection. Software
displays the result.
Internal loopback round trip delay
Measures the RTD including trunk queueing delay on each ForeSight connection. Software
displays the result.
Internal Remote Endpoint Status
These cells are generated by one end of a connection due to remote network connection failure
(Abit = 0). The other end detects these cells and reports the connection status to software, which
displays it.
dspalms
dspcon
dspport
tstconseg
tstdly
Cisco BPX 8600 Series Installation and Configuration
OAM Cells
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