FibeAir IP-20C/S/E
User Guide
Ceragon Proprietary and Confidential
Page 321 of 597
Parameter
Definition
MEG Level
Select a MEG level (0-7). The MEG level must be the same for MEGs on both sides of
the link. Higher levels take priority over lower levels.
If MEGs are nested, the OAM flow of each MEG must be clearly identifiable and
separable from the OAM flows of the other MEGs. In cases where the OAM flows are
not distinguishable by the Ethernet layer encapsulation itself, the MEG level in the OAM
frame distinguishes between the OAM flows of nested MEGs.
Eight MEG levels are available to accommodate different network deployment
scenarios. When customer, provider, and operator data path flows are not
distinguishable based on means of the Ethernet layer encapsulations, the eight MEG
levels can be shared among them to distinguish between OAM frames belonging to
nested MEGs of customers, providers and operators. The default MEG level
assignment among customer, provider, and operator roles is:
The customer role is assigned MEG levels 6 and 7.
The provider role is assigned MEG levels 3 through 5.
The operator role is assigned MEG levels: 0 through 2.
The default MEG level assignment can be changed via a mutual agreement among
customer, provider, and/or operator roles.
The number of MEG levels used depends on the number of nested MEs for which the
OAM flows are not distinguishable based on the Ethernet layer encapsulation.
CCM Interval
The interval at which CCM messages are sent within the MEG. Options are:
1 second (default)
10 seconds
1 minute
10 minutes
It takes a MEP 3.5 times the CCM interval to determine a change in the status of its
peer MEP. For example, if the CCM interval is 1 second, a MEP will detect failure of the
peer 3.5 seconds after it receives the first CCM failure message. If the CCM interval is
10 minutes, the MEP will detect failure of the peer 35 minutes after it receives the first
CCM failure message.
Service ID
Select an Ethernet service to which the MEG belongs. You must define the service
before you configure the MEG.
Table 65: SOAM MA/MEG Status Parameters
Parameter
Definition
MA/MEG ID
Automatically generated by the system.
MA/MEG Name Format
Reserved for future use. In the current release, this is Char String only.
MIP Creation
Reserved for future use.
Tx Sender ID TLV content
Reserved for future use. Sender ID TLV is not transmitted.
Port Status TLV TX
Reserved for future use. No Port Status TLV is transmitted in the CCM frame.
Interface Status TLV TX
Reserved for future use. No Interface Status TLV is transmitted in the CCM frame.
MEP List
Lists all local and remote MEPs that have been defined for the MEG.
