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Communities accepted from customers
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customer traffic engineering (TE) notes
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1. Communities allow suppress or prepend to peer AS, where
- peer AS has a peering connection to Ucomline,
- peer AS is not a customer of Ucomline.
2. Blackhole implementation.
The customer will need to ask for the "blackhole" feature
to be enabled on their BGP session.
This will enable two sets of prefix filters on the routes
learnt from the customer:
- the normal filter will match exactly the routes registered
in the IRRs,
- the "blackhole" filter will match any host (/32 network),
that is contained within the normal set of routes.
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customer traffic engineering communities - Suppression
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64999:XXX - announce to AS XXX if 65000:0 is set
65000:0 - announce to customers but not to peers
65000:XXX - do not announce at peerings to AS XXX
651NN:XXX - do not announce at peerings to AS XXX
(only AS 6849 currently implemented)
at NN POP (see above).
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customer traffic engineering communities - Prepending
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65001:0 - prepend once to all peers
65001:XXX - prepend once at peerings to AS XXX
65002:0 - prepend twice to all peers
65002:XXX - prepend twice at peerings to AS XXX
65003:0 - prepend 3x to all peers
65003:XXX - prepend 3x at peerings to AS XXX
65004:0 - prepend 4x to all peers
65004:XXX - prepend 4x at peerings to AS XXX
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customer traffic engineering communities - LocalPref
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65200:70 - set local preference to 70
65200:80 - set local preference to 80
65200:90 - set local preference to 90
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customer traffic engineering communities - BlackHole
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65534:RRRRR - blackhole traffic at specific border router
65534:0 - blackhole traffic at any border router
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