msgid "" msgstr "" "Project-Id-Version: French (cnp3-ebook)\n" "Report-Msgid-Bugs-To: \n" "POT-Creation-Date: 2026-03-06 21:41+0200\n" "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n" "Last-Translator: FULL NAME \n" "Language-Team: French \n" "Language: fr\n" "MIME-Version: 1.0\n" "Content-Type: text/plain; charset=UTF-8\n" "Content-Transfer-Encoding: 8bit\n" "Plural-Forms: nplurals=2; plural=n > 1;\n" "X-Generator: Weblate 5.14.3\n" #: ../../exercises/routing-policies.rst:5 msgid "Inter-domain routing" msgstr "" #: ../../exercises/routing-policies.rst:9 msgid "Exercises" msgstr "" #: ../../exercises/routing-policies.rst:24 msgid "Consider the interdomain topology shown in the figure below." msgstr "" #: ../../exercises/routing-policies.rst:56 msgid "In this network, what are the paths :" msgstr "" #: ../../exercises/routing-policies.rst:58 msgid "from `AS1` to `AS4`" msgstr "" #: ../../exercises/routing-policies.rst:59 msgid "from `AS4` to `AS2`" msgstr "" #: ../../exercises/routing-policies.rst:60 msgid "from `AS4` to `AS1`" msgstr "" #: ../../exercises/routing-policies.rst:63 #: ../../exercises/routing-policies.rst:96 msgid "" "Consider the interdomain topology shown in the figure below. Assuming, that " "`AS1` advertises prefix ``2001:db8:1::/48``, `AS2` prefix " "``2001:db8:2::/48``, ... compute the routing tables of the different ASes." msgstr "" #: ../../exercises/routing-policies.rst:93 msgid "" "Are all ASes capable of reaching all the other ASes in this simple Internet ?" msgstr "" #: ../../exercises/routing-policies.rst:128 msgid "" "In this internet, some ASes cannot reach all other ASes. Can you fix the " "problem by adding one shared-cost peering link or one customer-provider " "peering link ?" msgstr "" #: ../../exercises/routing-policies.rst:133 msgid "" "Consider the network below in which a stub domain, `AS456`, is connected to " "two providers `AS123` and `AS789`. `AS456` advertises its prefix to both its " "providers. On the other hand, `AS123` advertises ``2001:db8:dead::/48`` " "while `AS789` advertises ``2001:db8:beef::/48`` and " "``2001:db8:dead:cafe::/63``. Via which provider will the packets destined to " "``2001:db8:dead:cafe::1`` will be received by `AS456` ?" msgstr "" #: ../../exercises/routing-policies.rst:141 msgid "Should `AS123` change its configuration ?" msgstr "" #: ../../exercises/routing-policies.rst:143 msgid "" "Consider that the AS stub (`AS456`) shown in the figure below decides to " "advertise two ``/48`` prefixes instead of its allocated ``/47`` prefix." msgstr "" #: ../../exercises/routing-policies.rst:151 msgid "" "Via which provider does `AS456` receive the packets destined to " "``2001:db8:caff::bb`` and ``2001:db8:cafe::aa`` ?" msgstr "" #: ../../exercises/routing-policies.rst:153 msgid "" "How is the reachability of these addresses affected when link `R1`-`R3` " "fails ?" msgstr "" #: ../../exercises/routing-policies.rst:155 msgid "" "Propose a configuration on R1 that achieves the same objective as the one " "shown in the figure but also preserves the reachability of all IP addresses " "inside `AS456` if one of `AS456`'s interdomain links fails." msgstr "" #: ../../exercises/routing-policies.rst:157 msgid "" "Consider the network shown below. In this network, the metric of each link " "is set to `1` except link `A-B` whose metric is set to `4` in both " "directions. In this network, there are two paths with the same cost between " "`D` and `C`. Old routers would randomly select one of these equal cost paths " "and install it in their forwarding table. Recent routers are able to use up " "to `N` equal cost paths towards the same destination." msgstr "" #: ../../exercises/routing-policies.rst:163 msgid "A simple network" msgstr "" #: ../../exercises/routing-policies.rst:165 msgid "" "On recent routers, a lookup in the forwarding table for a destination " "address returns a set of outgoing interfaces. How would you design an " "algorithm that selects the outgoing interface used for each packet, knowing " "that to avoid reordering, all segments of a given TCP connection should " "follow the same path ?" msgstr "" #: ../../exercises/routing-policies.rst:167 msgid "" "A ``traceroute6`` towards ``ipv6.google.com`` provides the following output :" msgstr "" #: ../../exercises/routing-policies.rst:191 msgid "" "Can you explain why at the eighth, ninth and tenth hopes several IPv6 " "addresses are reported in the ``traceroute6`` output ?" msgstr "" #: ../../exercises/routing-policies.rst:193 msgid "" "`Section 3.3 `_ of " ":rfc:`4443` explains two different reasons why an IPv6 enabled device could " "generate an ICMPv6 Time Exceeded message. Explain when a router could " "generate such a message with ``Code==0`` and when a host could generate such " "a message with ``Code==1``." msgstr "" #: ../../exercises/routing-policies.rst:195 msgid "" "`Section 3.1 `_ of " ":rfc:`4443` seven different Codes for the ICMPv6 Destination Unreachable " "Message. Under which circumstances would a router generate such an ICMPv6 " "message with :" msgstr "" #: ../../exercises/routing-policies.rst:197 msgid "``Code==0``" msgstr "" #: ../../exercises/routing-policies.rst:213 msgid "" "An ICMPv6 error message includes in its message body the beginning of the " "IPv6 packet that triggered this error. How many bytes of the original packet " "must be returned to allow the host to recover the original source and " "destination addresses and source and destination ports of the packet that " "caused the error ?" msgstr ""