Channel Statistics; Oam Cell Support - Cisco BPX 8620 Installation And Configuration Manual

OAM Cells

Channel Statistics

Statistics are supported on a per-channel basis. A range of traffic and error statistics are available.
Channel statistics of these general types are supported:
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The following are the commands used 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 the following OAM cell flows:
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The following are the commands associated with OAM cell status changes:
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Cisco BPX 8600 Series Installation and Configuration
22-10
Cells received/transmitted, dropped, tagged as noncompliant or congested
Cell errors
AAL-5 frame counts, errors
clrchstats
cnfchstats
dspchstats
dspchstatcnf
dspchstathist
End-to-End AIS/FERF—Displays the software on a per-connection basis.
External segment loopbacks—Specifies that the software initiates loopback of ATM-CPE through a
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—Generates 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
Chapter 22 Configuring Frame Relay to ATM Network and Service Interworking
Release 9.3.30, Part Number 78-12907-01 Rev. E0, May 2005