ethernet oam vs lldp

Answered Question
Mar 31st, 2010

Hi,

May be basic funda question. When to enable 'ethernet oam' and 'lldp'.

I know lldp is cisco to non-cisco layer 2 communication.

What is the difference between oam and lldp and when to use?

Regards

Siva K

I have this problem too.
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Correct Answer by Ganesh Hariharan about 6 years 8 months ago

Hi,

May be basic funda question. When to enable 'ethernet oam' and 'lldp'.

I know lldp is cisco to non-cisco layer 2 communication.

What is the difference between oam and lldp and when to use?

Regards

Siva K

Hi Siva,

The difference between Ethernet OAM and LLDP is ethernet OAM  protocol for installing, monitoring, and troubleshooting Metro thernet networks and Ethernet WANs relies on an optional sublayer in the data link layer of the OSI model.

OAM frames, called OAM protocol data units (OAM PDUs) use the slow protocol destination MAC address 0180.c200.0002. They are intercepted by the MAC sublayer and cannot propagate beyond a single hop within an Ethernet network. Ethernet OAM is a relatively slow protocol, with a maximum transmission rate of 10 frames per second, resulting in minor impact to normal operations.

On the other hand the LLDP says to support non-Cisco devices and to allow for interoperability between other devices, the switch supports the IEEE 802.1AB Link Layer Discovery Protocol (LLDP). LLDP is a neighbor discovery protocol that is used for network devices to advertise information about themselves to other devices on the network. This protocol runs over the data-link layer, which allows two systems running different network layer protocols to learn about each other.

Hope to Help !!

Ganesh.H

Cisco are currently donating money to the Haiti earthquake appeal for every rating so please consider rating all helpful posts.

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Correct Answer
Ganesh Hariharan Thu, 04/01/2010 - 10:58

Hi,

May be basic funda question. When to enable 'ethernet oam' and 'lldp'.

I know lldp is cisco to non-cisco layer 2 communication.

What is the difference between oam and lldp and when to use?

Regards

Siva K

Hi Siva,

The difference between Ethernet OAM and LLDP is ethernet OAM  protocol for installing, monitoring, and troubleshooting Metro thernet networks and Ethernet WANs relies on an optional sublayer in the data link layer of the OSI model.

OAM frames, called OAM protocol data units (OAM PDUs) use the slow protocol destination MAC address 0180.c200.0002. They are intercepted by the MAC sublayer and cannot propagate beyond a single hop within an Ethernet network. Ethernet OAM is a relatively slow protocol, with a maximum transmission rate of 10 frames per second, resulting in minor impact to normal operations.

On the other hand the LLDP says to support non-Cisco devices and to allow for interoperability between other devices, the switch supports the IEEE 802.1AB Link Layer Discovery Protocol (LLDP). LLDP is a neighbor discovery protocol that is used for network devices to advertise information about themselves to other devices on the network. This protocol runs over the data-link layer, which allows two systems running different network layer protocols to learn about each other.

Hope to Help !!

Ganesh.H

Cisco are currently donating money to the Haiti earthquake appeal for every rating so please consider rating all helpful posts.

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