North American Network Operators Group
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Re: IAB concerns against permanent deployment of edge-based filtering

  • From: Jack Bates
  • Date: Sat Oct 18 08:51:38 2003 
Jun-ichiro itojun Hagino wrote:

While short term traffic filters are deployed, the appropriate recommended
longer term action is to:
Edge networks have a lot more to upgrade than backbone networks. Obtaining IOS code that works for all the different types of routers and meets the ISP's policy is not an easy task. Some files had to be specifically requested from the vendor as they no longer supported the version and didn't have pre-compiles. In addition, there are "other" bugs in IOS which must be considered for each application of a router deployment. This must be tested and monitored at one application locale and once verified can be deployed for all similar applications.

In some cases,there were no alternatives, and this forced hardware upgrades at various locations (ie, memory). Such upgrades require money and time on the part of the edge customers. The peering blocks allow for limited protection of a majority of the customers while they continue to repair their networks.

RPC blocks will be much worse, as the storm is still pretty loud, and low bandwidth customers cannot handle the extra noise.

-Jack