WebEx can replace multicast ?

Hi All, I think WebEx and multicast have the similar function. WebEx is easy to use and configure. Do you think WebEx can replace multicast for video transmit ? What is difference between them functionally ? Thank you
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AkinsdNetwork AdministratorCommented:
I'm not sure if you're referring to any particular program called Multicast.

Multicast is a method of delivery. It is a protocol.
Webex is an application branding from Cisco which is capable to use multicast protocol to stream data (including video) .

Please provide detail information if you're referring to something different
Craig BeckCommented:
Answer = no.

WebEx can USE multicast to deliver content simultaneously to multiple hosts.

Multicast is a function of the TCP/IP suite and therefore can't be replaced by an application.
eemoonAuthor Commented:
Both multicast and WebEx can be used to deliver packets to some group of users. If we use multicast for the purpose, we need to configure it on router and need to setup group at server and end user PC. So if we want to send video message, it is easier to configure WebEx at layer7 than multicast at layer3. Do you think so ?
Craig BeckCommented:
This is really simple.  Multicast is used at the network level to efficiently transport data from one source to many simultaneously.  It's used for more than just video or screen-sharing.  As an example, many networks include the ability to 'image' multiple (I'm talking anything from 2 to thousands) machines on the LAN using Multicast.  You just can't do that with WebEx.

If you want to push content via WebEx using Multicast, the network has to support Multicast first.  You can't just use WebEx to enable Multicast.  In any case, to allow WebEx to work over Multicast I believe you need Cisco Multicast Manager, so it's a definite... No, WebEx won't replace Multicast.

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eemoonAuthor Commented:
Thank you craigbeck!
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