The other week, I asked: On Sat, Mar 24, 2001 at 10:25:35PM -0500, Joe Abley wrote:
Quick poll: does any operator here currently use a router which does not support setting BGP community attributes, does not permit community attributes to be matched exactly when doing ingress/egress route filtering, or does not permit wildcard matches on the last two octets (e.g. "permit 1234:*")?
These were pretty targeted questions, and what I have largely heard is silence. Hence either these three capabilities have widespread support, or people just didn't find the question interesting enough to reply to. I guess I shouldn't start designing surveys for a living :) Anyway, a couple of people said there was interest in a results summary, so here are the main points: + gated 3.6 public doesn't support setting community attributes but will pass them on unscathed, as you'd hope; + "Extreme networks equipment" does not support the wildcard community match, although the person who told me that had only limited experience with the product range; I also happened to ask a few people about specific platforms, and found out: + the Nortel shasta and bay RS platforms support those three capabilities + zebra supports all three capabilities (the wildcard match function is in version 0.91a, based on a patch by Rick Payne) I was already confident I could do all three things on juniper and cisco boxes, although I didn't bother to analyse which IOS/JUNOS versions would definitely support all three. One correspondant (working for a vendor) lamented the lack of clear guidelines on what base functionality should be supported by bgp speakers at all in relation to manipulating community attributes, and suggested a more general poll might be useful for that reason. The reason for asking about those three particular capabilities was to search for platforms that would have trouble doing this: http://www.automagic.org/~jabley/draft-jabley-edge-policy-propagation-contro... Thanks, Joe