As you can see things are startng to move up recently. I'd suggest folks take a look at the "Interesting Aggregates" section on the web page as it appears there's been a large influx of routes here. Particularly AS719 who look like they may have a config error with many many /28s showing up. They aren't the only ones as there seems to be a lot of potential savings to be made here just by eye-balling the aggregates.
It looks like AS 719 may have cleaned-up their act, but there is still a lot of garbage in that section of the report. Most of them seem to be subnets of /16's that all have the same AS path and therefore have no reason to not be aggregated. 168.108.x.y, 166.102.x.y, 152.166.x.y-152.172.x.y, 129.81.x.y, and 139.175.x.y are the most obvious offenders - all of the components of each are singly-homed to a single AS path (yes, AS 1 has a couple of small ones not listed above - I'll see about chasing those down). Others, like 161.11.x.y, 138.87.x.y, 137.15.x.y, 137.98.x.y, and 143.233.x.y appear to be multi-homed but still shouldn't need to be propagated to the global Internet. If you're going to accept CIDR block subcomponents from your customers for load-balancing or other purposes, please set community "no-advertise" or otherwise prevent them from leaking out to the rest of the net - everyone else doesn't need to see your trash... --Vince (note: from address modified to discourage spam)
Actually, from where I'm sitting AS719 still looks to be in bad shape. However, as you say they are just one of many. I encourage everyone to take a quick look through http://www.employees.org:80/~tbates/cidr-report.html#Aggs You may just see something youy can clean up. --Tony Vince Fuller <xxvaf@valinor.barrnet.net> writes: * > As you can see things are startng to move up recently. I'd suggest * > folks take a look at the "Interesting Aggregates" section on the web * > page as it appears there's been a large influx of routes * > here. Particularly AS719 who look like they may have a config error * > with many many /28s showing up. They aren't the only ones as there * > seems to be a lot of potential savings to be made here just by * > eye-balling the aggregates. * * It looks like AS 719 may have cleaned-up their act, but there is still a lo * t * of garbage in that section of the report. Most of them seem to be subnets o * f * /16's that all have the same AS path and therefore have no reason to not be * aggregated. 168.108.x.y, 166.102.x.y, 152.166.x.y-152.172.x.y, 129.81.x.y, * and 139.175.x.y are the most obvious offenders - all of the components of e * ach * are singly-homed to a single AS path (yes, AS 1 has a couple of small ones * not listed above - I'll see about chasing those down). Others, like * 161.11.x.y, 138.87.x.y, 137.15.x.y, 137.98.x.y, and 143.233.x.y appear to * be multi-homed but still shouldn't need to be propagated to the global * Internet. * * If you're going to accept CIDR block subcomponents from your customers for * load-balancing or other purposes, please set community "no-advertise" or * otherwise prevent them from leaking out to the rest of the net - everyone * else doesn't need to see your trash... * * --Vince * * (note: from address modified to discourage spam)
participants (2)
-
Tony Bates -
Vince Fuller