Brocade Communications Systems Brocate Ethernet Access Switch 6910 - Manual (Page 1040)

990 Brocade 6910 Ethernet Access Switch Configuration Guide
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Connectivity Fault Management
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Command Usage
• Loopback messages can be used for fault verification and isolation after automatic detection
of a fault or receipt of some other error report. Loopback messages can also used to confirm
the successful restoration or initiation of connectivity. The receiving maintenance point should
respond to the loop back message with a loopback reply.
• The point from which the loopback message is transmitted (i.e., a local DSAP) and the target
maintenance point must be within the same MA.
• If the continuity check database does not have an entry for the specified maintenance point,
an error message will be displayed.
• When using the command line or web interface, the source MEP used by to send a loopback
message is chosen by the CFM protocol. However, when using SNMP, the source MEP can be
specified by the user.
Parameters
These parameters are displayed:
• 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 the loopback message.
(Range: 1-8191)
• Target
• MEP ID – The identifier of a remote MEP that is the target of a loopback message.
(Range: 1-8191)
• MAC Address – MAC address of a remote MEP that is the target of a loopback message.
This address can be entered in either of the following formats: xx-xx-xx-xx-xx-xx or
xxxxxxxxxxxx
• Count – The number of times the loopback message is sent. (Range: 1-1024)
• Packet Size – The size of the loopback message. (Range: 64-1518 bytes; Default: 64 bytes)
Interface
To transmit loopback messages:
1. Click Administration, CFM.
2. Select Transmit Loopback from the Step list.
3. Select an entry from MD Index and MA Index.
4. Specify the source MEP, the target MEP using either its MEP identifier or MAC address, set the
number of times the loopback message is to be sent.
5. Click Apply.