Alcatel-Lucent 7950 SR, Руководство по управлению системой

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Management Access Filter Commands
Page 128 7950 SR OS System Management Guide
If the cfm-opcode match condition is configured then a check must be made to see if the Ethertype is
either IEEE802.1ag or Y1731. If the Ethertype does not match then the packet is not CFM and no
match to the cfm-opcode is attempted.
The CFM (ieee802.1ag or Y1731) opcode can be assigned as a range with a start and an end number
or with a (less than lt, greater than gt, or equal to eq) operator.
If no range with a start and an end or operator (lt, gt, eq) followed by an opcode with the value
between 0 and 255 is defined then the command is invalid.
The following table provides opcode values.
Table 7: Opcode Values
CFM PDU or Organization Acronym ConfIgurable Numeric
Value (Range)
Reserved for IEEE 802.1 0 0
Continuity Check Message CCM 1
Loopback Reply LBR 2
Loopback Message LBM 3
Linktrace Reply LTR 4
Linktrace Message LTM 5
Reserved for IEEE 802.1 6 – 31
Reserved for ITU 32
AIS 33
Reserved for ITU 34
LCK 35
Reserved for ITU 36
TST 37
Reserved for ITU 38
APS 39
Reserved for ITU 40
MCC 41
LMR 42
LMM 43
Reserved for ITU 44
1DM 45
DMR 46
DMM 47
Reserved for ITU 48 – 63
Reserved for IEEE 802.1 0 64 - 255