From an IX perspective HE is much more receptive to peering at an IX. Last I knew cogent outright says no. In our Indianapolis market a ton of capacity would be saved if Cogent would peer. I understand the reasoning, but having a provider that is more willing to peer is a draw to the end user networks we work with.
Justin Wilson
j2sw@mtin.net
It appears that to route on the edge with multihop is viewed as novel.
might have been novel in 1990, not now. other adjectives apply, and not
nice ones
randy
My understanding is this was mostly legacy from devices that did not
carry full Rib and fib. There were tricks to avoid ending up on these
skinny devices if you wanted.Life in the core has changed a lot in recent years from 6500/7600 and
foundry/brocade class devices to a more interesting set in the
pipeline or released.There are some limited rib-> fib download boxes that could slice
traffic in cost effective ways that the price conscious consumer will
likely push the market to.
There are also of course variations on this. An an aggregation router
may have quite limited FIB, e.g. enough for customer routes yet still
have a full rib in it's control-plane, at which point it needs to
default towards devices which do have a FIB in place. assuming a single
hob peering it would be rather hard to identify this case as a customer,
though if your neighbor has an Arista mac address for example that might
be a logical conclusion.
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> > There are also of course variations on this. An an aggregation
router > may have quite limited FIB, e.g. enough for customer routes yet
still > have a full rib in it's control-plane, at which point it needs
to > default towards devices which do have a FIB in place. assuming a
single > hob peering it would be rather hard to identify this case as a
customer, > though if your neighbor has an Arista mac address for
example that might > be a logical conclusion.
In all our Metro-E deployments, where we have enough RIB to hold
multiple full feeds, but a limited FIB for forwarding, there is no
discernible difference in performance both at the routing and forwarding
levels to our customers that take full BGP feeds natively from these
devices.
Mark.
does ntt peer with he for ip6?
You can review sites like:
https://radar.qrator.net/as2914/ipv6-peerings#startDate=2015-10-10&endDate=2016-01-27&tab=current
or
http://bgp.he.net/AS2914#_peers6
to get a sense of what relations exist.
Kind regards,
Job