Re: Correction - Storm-Control Level 0

From: Nazgulero (pauwen@hotmail.com)
Date: Mon Feb 28 2005 - 16:06:58 GMT-3


Hello Bob,

interesting. So the 0.0 is not really blocking all multicast traffic...maybe
there is a built-in mechanism that lets regular routing protocol multicast
traffic through...

Georg
  ----- Original Message -----
  From: Bob Sinclair
  To: Nazgulero ; B Kim ; 'CCIE Study Group'
  Sent: Monday, February 28, 2005 5:16 PM
  Subject: Re: Correction - Storm-Control Level 0

  Georg,

  By sending extended pings to the address 224.0.0.5, with a timeout of 1
second and a datagram size of 1000 bytes I could get storm-control multicast
to trigger. Regular 10-second hellos did not, however. The rate was just
too low to register. Seems to me that regular OSPF multicast traffic would
trigger storm-control if the rate was perceptible.

  HTH,

  Bob Sinclair
  CCIE #10427, CCSI 30427, CISSP
  www.netmasterclass.net

    ----- Original Message -----
    From: Nazgulero
    To: B Kim ; 'CCIE Study Group'
    Sent: Monday, February 28, 2005 2:26 AM
    Subject: Re: Correction - Storm-Control Level 0

    Hello,

    according to the documentation, a level of 0.0 should suppress all
multicast
    traffic. I could not find anything regarding if that affects e.g. RIP,
OSPF,
    or HSRP multicast as well, does anybody have any info on that ?

    Regards,

    Georg
    ----- Original Message -----
    From: "B Kim" <beokim@comcast.net>
    To: "'CCIE Study Group'" <ccielab@groupstudy.com>
    Sent: Monday, February 28, 2005 3:16 AM
    Subject: Correction - Storm-Control Level 0

> Correction - Actually my test shows that the multicast routing protocol
> traffic is NOT affected by the storm-control multicast level 0 command.
>
> Thanks.
>
> Hi
>
> Does the "storm-control multicast level 0" command suppress all
> multicast traffic, including multicast routing protocol traffic?
>
> Based on my experiment, it looks like the case. I just want to verify
> this.
>
> Appreciate in advance any reply.
>
> Thanks
> Beomsu Kim
> beokim@comcast.net
>
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