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3.2.6 JUMBO FRAME
The switch allows user to configure the size of the Maximum Transmission Unit. The default value is 1,518bytes. The
maximum Jumbo Frame size is 9,216 bytes.
3.2.7 CFM SETTING
Ethernet Connectivity Fault Management (CFM, IEEE 802.1ag) is an end-to-end Ethernet OAM that can cross multiple
domains to monitor the health of the entire service instance. A service instance can be a native Ethernet
VLAN. CFM is a connectivity checking mechanism that uses its own Ethernet frames (its Ethertype is 0x8902 and it
has its own MAC address) to validate the health of the service instance.
Continuity Check Protocol (CCP): "Heartbeating" messages for CFM. The Continuity Check Message (CCM) provides a
means to detect connectivity failures in an MA. CCMs are multicast messages. CCMs are confined to a domain (MD).
These messages are unidirectional and do not solicit a response. Each MEP transmits a periodic multicast Continuity
Check Message inward towards the other MEPs. DP612/DS612 support Hardware CCM transition. The
transition/receiving interval can up to 3.3ms to support detection Gigabit Ethernet cooper interface in 10ms.
Below is the CFM CCP configuration page. In this page user may configure the Maintenance Domain, Maintenance
Association and the Maintenance association End Point setting.
Add Domain
Add the Domain name and the MD level then click
Add.