Discussion - Another BGP Community Viewpoint
I will not be able to attend the MICE UG meeting tonight. However, I would like to add my thoughts regarding route advertisement control using BGP communities. I am strongly in favor of this capability being added to the route servers. Specifically, I'd like to see the ability to block advertisement to particular ASes or to prepend just to particular AS(es). Perhaps something like Level3, Sprint, and others use: 65000:XXX - do not announce to AS XXX 65001:XXX - prepend one AS to AS XXX 65002:XXX - prepend two ASes to AS XXX 65003:XXX - prepend three ASes to AS XXX 65004:XXX - prepend four ASex to AS XXX I just had to block one customer's netblock at MICE because Netflix traffic shifted in an undesirable manner yesterday. In this case, they really just needed to prepend Netflix at MICE, but since that wasn't an option they requested that we just block their netblock completely from the MICE route servers. BGP Communities give individual MICE members the ability to control their route advertisements to best suit their needs and routing policies without having to block the MICE route servers completely.
+1 on that. Fully support here, and I think a necessity for a growing IX. There are logical business and traffic engineering reasons for this sort of thing, and saves folks from having to go bilateral peer with everyone as the member count grows even higher. Here are some examples of how other exchanges have implemented this sort of thing. Equinix: https://ix.equinix.com/ixp/mlpeCommunityInfo <https://ix.equinix.com/ixp/mlpeCommunityInfo> LINX: https://www.linx.net/members/support/route-servers.html <https://www.linx.net/members/support/route-servers.html> -- Andrew Hoyos hoyosa@gmail.com
On Oct 22, 2014, at 1:52 PM, Steve Howard <showard@paulbunyan.net> wrote:
I will not be able to attend the MICE UG meeting tonight.
However, I would like to add my thoughts regarding route advertisement control using BGP communities.
I am strongly in favor of this capability being added to the route servers. Specifically, I'd like to see the ability to block advertisement to particular ASes or to prepend just to particular AS(es). Perhaps something like Level3, Sprint, and others use:
65000:XXX - do not announce to AS XXX 65001:XXX - prepend one AS to AS XXX 65002:XXX - prepend two ASes to AS XXX 65003:XXX - prepend three ASes to AS XXX 65004:XXX - prepend four ASex to AS XXX
I just had to block one customer's netblock at MICE because Netflix traffic shifted in an undesirable manner yesterday. In this case, they really just needed to prepend Netflix at MICE, but since that wasn't an option they requested that we just block their netblock completely from the MICE route servers.
BGP Communities give individual MICE members the ability to control their route advertisements to best suit their needs and routing policies without having to block the MICE route servers completely.
participants (2)
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Andrew Hoyos -
Steve Howard