Multicast Internet Route table.

William Herrin bill at
Tue Sep 2 17:00:51 UTC 2014

On Tue, Sep 2, 2014 at 11:29 AM, Corey Touchet
<corey.touchet at> wrote:
> 14 years at Verizon Wireless and I despised the crop of multicast products
> that seemed to pop up from time to time.  [...]  Content
> delivery systems moving the content closer to edge customers makes this
> less of a problem as well. [...]
> Torrent style distribution appears to be particularly effective as long as
> you can maintain a pool of users to distribute the content.

Hi Corey,

Would it be fair to say that:

Unicast delivery from distributed caches (e.g. CDNs, Content Delivery
Networks) and/or unicast peer to peer transfer is more effective in
nearly all applications where interdomain multicast routing is a
candidate solution?

If that's true, would it be useful for ISPs to build some kind of
generalized multi-layer streaming cache system that any end-user
application could make use of? Build caching into the system's
capabilities instead of it being hit or miss depending on who pays for
a CDN?

Bill Herrin

William Herrin ................ herrin at  bill at
Owner, Dirtside Systems ......... Web: <>
Can I solve your unusual networking challenges?

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