wg-multicast - Re: So we need some scoping for non-global I2 multicast groups

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Re: So we need some scoping for non-global I2 multicast groups

From: Guy T Almes <>
To: Mark Fullmer <>
Cc: Hugh LaMaster <>,
Subject: Re: So we need some scoping for non-global I2 multicast groups
Date: Tue, 20 Jul 1999 10:56:44 -0400

Mark,
I tend to agree.
This is both an issue of multicast routing and an issue of engineering the
constellation of NTP servers. To get accurate NTP, you want to have a very
good and well-understood path to a very good time source. This is not seem
like a good candidate for IP multicast.
-- Guy

At 11:25 PM 7/18/99 -0400, Mark Fullmer wrote:
>> I see nothing malevolent about NTP multicast traffic,
>> and, in fact, as long as most of the people advertising
>
>What's wrong with peering with a stratum 1 server and
>distributing the multicast or broadcast locally? Listening
>to random NTP mcast sources around the globe seems problematic
>at best.
>
>We peer our routers with local clocks and configure all the
>LAN interfaces with
>
> ntp broadcast destination 255.255.255.255
>
>
>--
>mark

Re: So we need some scoping for non-global I2 multicast groups, (continued)
- Re: So we need some scoping for non-global I2 multicast groups, Bill Fenner, 07/14/1999
  - Re: So we need some scoping for non-global I2 multicast groups, Dino Farinacci, 07/14/1999
- RE: So we need some scoping for non-global I2 multicast groups, Wallace, Steven S, 07/14/1999
  - RE: So we need some scoping for non-global I2 multicast groups, Hugh LaMaster, 07/14/1999
    - Re: So we need some scoping for non-global I2 multicast groups, Dino Farinacci, 07/15/1999
  - Re: So we need some scoping for non-global I2 multicast groups, Mark Fullmer, 07/14/1999
    - Re: So we need some scoping for non-global I2 multicast groups, Hugh LaMaster, 07/16/1999
      - Re: So we need some scoping for non-global I2 multicast groups, Mark Fullmer, 07/18/1999
        
        Re: So we need some scoping for non-global I2 multicast groups, Hugh LaMaster, 07/19/1999
        
        Re: So we need some scoping for non-global I2 multicast groups, Guy T Almes, 07/20/1999
- Re: So we need some scoping for non-global I2 multicast groups, Kevin C. Almeroth, 07/15/1999
  - Re: So we need some scoping for non-global I2 multicast groups, David Meyer, 07/15/1999
    - Re: So we need some scoping for non-global I2 multicast groups, Mark Fullmer, 07/15/1999
      - Re: So we need some scoping for non-global I2 multicast groups, Kevin Thompson, 07/15/1999
- Re: So we need some scoping for non-global I2 multicast groups, ken lindahl, 07/15/1999
  - Re: So we need some scoping for non-global I2 multicast groups, Kevin Thompson, 07/16/1999
  - Message not available
    - Re: So we need some scoping for non-global I2 multicast groups, Mark Fullmer, 07/18/1999

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Re: So we need some scoping for non-global I2 multicast groups