Brocade 6910 Ethernet Access Switch Configuration Guide (Supporting R2.2.0.0) User Manual
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Brocade 6910 Ethernet Access Switch Configuration Guide
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Connectivity Fault Management
Upon receiving an LMR frame, a MEP uses the following values to make near-end and far-end
loss measurements:
•
Received LMR frame's TxFCf, RxFCf and TxFCb values and local counter RxFC1 value at
the time this LMR frame was received. These values are represented as TxFCf[t
c
],
RxFCf[t
c
], TxFCb[t
c
] and RxFCl[t
c
], where t
c
is the reception time of the current reply frame.
•
Previous LMR frame's TxFCf, RxFCf and TxFCb values and local counter RxFC1 value at the
time the previous LMR frame was received. These values are represented as TxFCf[t
p
],
RxFCf[t
p
], TxFCb[t
p
] and RxFCl[t
p
], where t
p
is the reception time of the previous reply
frame.
Frame loss far-end = [TxFCf[t
c
] – TxFCf[t
p
]] – [RxFCf[t
c
] – RxFCf[t
p
]]
Parameters
These parameters are displayed:
Configuration Settings
•
MD Index – Domain index. (Range: 1-65535)
•
MA Index – MA identifier. (Range: 1-2147483647)
•
Source MEP ID – The identifier of a source MEP that will send loss-measure messages.
(Range: 1-8191)
•
Target MEP ID – The identifier of a remote MEP that is the target of loss-measure messages.
(Range: 1-8191)
•
Counts – The number of times to send a loss-measure message. (Range: 1-5)
•
Interval – The interval between the transmission of loss-measure messages.
(Range: 1-5 seconds)
Result
•
Received Time – The time this LMR frame was received from the peer device.
•
Far-end Frame Loss – Frame loss associated with egress data frames.
•
Near-end Frame Loss – Frame loss associated with ingress data frames.
Interface
To transmit single-ended loss-measure messages:
1. Click Administration, CFM.
2. Select Transmit Single-Ended Loss Measure from the Step list.
3. Select an entry from MD Index and MA Index.
4. Specify the source MEP and target MEP, the number of times the loss-measure message is to
be sent, and the message interval.
5. Click Apply.