Dell PowerEdge M420, Справочное руководство

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Ethernet CFM Commands
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Ethernet CFM Commands
Connectivity Fault Management (CFM) is the OAM Protocol provision for
end-to-end service layer OAM in carrier Ethernet networks. CFM provides
mechanisms to support the operator in performing connectivity checks, fault
detection, fault verification and isolation, and fault notification per service in
the network domain of interest. Unlike Ethernet OAM defined in IEEE
802.3ah, where the faults are detected and notified on a single point-to-point
IEEE Std. 802.3 LAN, this specification deals with the fault diagnosis at
service layer across networks comprising multiple LANs, including LANs
other than 802.3 media.
PowerConnect CFM supports the following functionality:
• Path discovery (linktrace message)
• Fault detection (continuity check message)
• Fault verification and isolation (loopback and linktrace messages)
• Fault notification (alarm indication signal or SNMP trap)
Commands in this Chapter
This chapter explains the following commands:
ethernet cfm domain ping ethernet cfm
service traceroute ethernet cfm
ethernet cfm cc level show ethernet cfm errors
ethernet cfm mep level show ethernet cfm domain
ethernet cfm mep enable show ethernet cfm maintenance-points
local
ethernet cfm mep active show ethernet cfm maintenance-points
remote
2CSPC4.XModular-SWUM200.book Page 407 Thursday, March 10, 2011 11:18 AM