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Randy Bush 2019-05-30 13:15:00 -07:00
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36
draft-ietf-grow-wkc-behavior.xml
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@ -79,12 +79,12 @@
<t>Well-Known BGP Communities are manipulated differently across
various current implementations. This results in difficulties for
operators. Network operators are encouraged to deploy consistent
community handling across their networks, taking the inconsistent
behaviors from the various BGP implementations they operate into
consideration. This document recommends specific actions to limit
future inconsistency, namely BGP implementors must not create
further inconsistencies from this point forward.</t>
operators. Network operators should deploy consistent community
handling across their networks while taking the inconsistent
behaviors from the various BGP implementations into consideration..
This document recommends specific actions to limit future
inconsistency, namely BGP implementors must not create further
inconsistencies from this point forward.</t>
</abstract>
@ -178,8 +178,8 @@
<t>In Juniper Networks' Junos OS, "community set" removes all
communities, Well-Known or otherwise.</t>
<t>In Cisco Systems' IOS XR, "set community" removes all communities
except for the following:</t>
<t>In Cisco IOS XR, "set community" removes all communities except
for the following:</t>
<texttable anchor="cisco">
<preamble></preamble>
@ -194,10 +194,10 @@
<postamble>Communities not removed by Cisco IOS XR</postamble>
</texttable>
<t>IOS XR does allow Well-Known communities to be removed only by
explicitly enumerating one at a time, not in the aggregate; for
<t>Cisco IOS XR does allow Well-Known communities to be removed only
by explicitly enumerating one at a time, not in the aggregate; for
example, "delete community accept-own". Operators are advised to
consult IOS XR documentation and/or Cisco Systems support for full
consult Cisco IOS XR documentation and/or Cisco support for full
details.</t>
<t>On Extreme networks' Brocade NetIron: "set community X" removes
@ -219,13 +219,13 @@
<t>The IANA publishes a list of Well-Known Communities <xref
target="IANA-WKC"/>.</t>
<t>IOS XR's set of Well-Known communities that "set community"
will not overwrite diverges from the IANA's list. Quite a few
Well-Known communities from IANA's list do not receive special
treatment in IOS XR, and at least one specific community on IOS
XR's special treatment list (internet == 0:0) is not really on
IANA's list -- it's taken from the "Reserved" range
[0x00000000-0x0000FFFF].</t>
<t>Cisco IOS XR's set of Well-Known communities that "set
community" will not overwrite diverges from the IANA's list of
Well-Known communities. Quite a few Well-Known communities from
IANA's list do not receive special treatment in Cisco IOS XR, and
at least one specific community on Cisco IOS XR's special
treatment list (internet == 0:0) is not really on IANA's list --
it's taken from the "Reserved" range [0x00000000-0x0000FFFF].</t>
<t>This merely notes an inconsistency. It is not a plea to
'protect' the entire IANA list from "set community."</t>