All things related to multicast

[John Kristoff <>]

On Wed, 11 Jun 2008 22:23:52 +0300 (EEST)
Pekka Savola 
<>
 wrote:

> We've for years now installed policers in our upstream/peering
> interfaces which rate-limit SAP to 1 mbit/s.  That has saved our and
> our customers' backsides a couple of times already -- without
> crippling the real use of SAP.

I'm not actively doing multicast support these days, but I believe this
might still be applicable as an alternative solution for those with
JUNOS:

  protocols {
    msdp {
      source 0.0.0.0/0 {
        active-source-limit {
          maximum 500;
          threshold 450;
        }
      }
    }
  }

That should temper the number of SAs from any one misbehaving end
host.  Adjust the numbers per your requirements. I2 should have a full
suite of hardening ideas on their multicast support pages.

John