Configuration Guide (Supporting R2.2.0.0) Owner's manual

552 Brocade 6910 Ethernet Access Switch Configuration Guide
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CFM Commands
Command Mode
CFM Domain Configuration
Command Usage
• A fault alarm can generate an SNMP notification. It is issued when the MEP fault notification
generator state machine detects that a configured time period (see the mep fault-notify
alarm-time command) has passed with one or more defects indicated, and fault alarms are
enabled at or above the priority level set by this command. The state machine transmits no
further fault alarms until it is reset by the passage of a configured time period (see the mep
fault-notify reset-time command) without a defect indication. The normal procedure upon
receiving a fault alarm is to inspect the reporting MEP’s managed objects using an appropriate
SNMP software tool, diagnose the fault, correct it, re-examine the MEP’s managed objects to
see whether the MEP fault notification generator state machine has been reset, and repeat
those steps until the fault is resolved.
• Only the highest priority defect currently detected is reported in the fault alarm.
• Priority defects include the following items:
Example
This example sets the lowest priority defect that will generate a fault alarm.
Console(config)#ethernet cfm domain index 1 name voip level 3
Console(config-ether-cfm)#mep fault-notify lowest-priority 1
Console(config-ether-cfm)#
TABLE 130 Remote MEP Priority Levels
Priority Level Level Name Description
1 allDef All defects.
2 macRemErrXcon DefMACstatus, DefRemoteCCM, DefErrorCCM, or DefXconCCM.
3 remErrXcon DefErrorCCM, DefXconCCM or DefRemoteCCM.
4 errXcon DefErrorCCM or DefXconCCM.
5 xcon DefXconCCM
6 noXcon No defects DefXconCCM or lower are to be reported.
TABLE 131 MEP Defect Descriptions
Field Description
DefMACstatus Either some remote MEP is reporting its Interface Status TLV as not isUp, or all
remote MEPs are reporting a Port Status TLV that contains some value other than
psUp.
DefRemoteCCM The MEP is not receiving valid CCMs from at least one of the remote MEPs.
DefErrorCCM The MEP has received at least one invalid CCM whose CCM Interval has not yet
timed out.
DefXconCCM The MEP has received at least one CCM from either another MAID or a lower MD
Level whose CCM Interval has not yet timed out.