RE: how does your company bring multicast traffic from external

If you have a specific example, I would recommend you post it. Typically
receive media is unicast as there isn't enough of a business justification
to do multicast to the internet. Same thing with transmit.

For stock market data, you are at the mercy of the provider. 99% of the
time they will dictate and you will oblige. That will be a private
connection that is plugged into your internal network somewhere.

PS - Please feel free to change your signature/legal disclosure.

tv

-----Original Message-----
From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of Gao,
Qingli
Sent: Tuesday, May 12, 2009 12:49 PM
To: Cisco certification; Cisco certification
Subject: OT: how does your company bring multicast traffic from external
into internal network

Hi all,

  Nowadays multicast traffic is used in many places, such as stock market
data and stream media. How do your companies bring those external sourced
traffic into your internal network?

  If we use firewall to pass the data, then latency will be a concern. If
let the multicast come in directly, how will you ensure the security?
Please let me know your idea. Thanks a lot!

Thanks,
Qingli

Blogs and organic groups at http://www.ccie.net
Received on Tue May 12 2009 - 14:52:50 ART