{"id":1466,"date":"2015-02-15T16:56:20","date_gmt":"2015-02-15T14:56:20","guid":{"rendered":"http:\/\/www.olografix.org\/frank\/wordpress\/?p=1466"},"modified":"2015-02-15T16:56:20","modified_gmt":"2015-02-15T14:56:20","slug":"implementare-un-terrazzino","status":"publish","type":"post","link":"https:\/\/olografix.sugodipesce.net\/frank\/wordpress\/?p=1466","title":{"rendered":"Implementare un terrazzino"},"content":{"rendered":"

\"implement\"<\/a><\/p>\n

mi ricordo il momento in cui Norm era vicino a me, mentre acquistavo il libro per l’esame ccnp route.
\nin realt\u00c3\u00a0 me ne ha fatti comprare 2, “official certification guide” e quello di cui sopra, “implementing cisco ip routing”, perch\u00c3\u00a9 cos\u00c3\u00ac ti impari veramente a fare le cose<\/em>.<\/p>\n

prima di fare l’esame non mi sono cacato molto questo secondo libro, e ho sbagliato.
\nrileggendo adesso, DOPO aver fatto l’esame, mi sembra proprio che per passare il test sia fondalmentale avere quel tipo di approccio l\u00c3\u00ac, e avere un “occhio” per tutta una serie di cose che magari nella guida ufficiale sono accennate.<\/p>\n

una cosa che mi \u00c3\u00a8 piaciuta molto, tra le prime pagine di Implement, \u00c3\u00a8 leggere che il valore della distanza amministrativa di una rotta statica (espressa con l’interfaccia, non l’ip del next-hop) \u00c3\u00a8 “qualcosa tra 0 e 1”:<\/p>\n

To confirm this, we performed a test. We configured two static routes to the same net-work, one via an address and one via an interface:<\/p>\n

ip route 192.168.22.0 255.255.255.0 s1\/0
\nip route 192.168.22.0 255.255.255.0 192.158.2.101<\/p>\n

As expected, only the one via the interface appeared in the routing table, as a \u00e2\u20ac\u0153directly
\nconnected\u00e2\u20ac\u009d static route:<\/p>\n

S 192.168.22.0\/24 is directly connected, Serial1\/0<\/p>\n

Therefore, its administrative distance must be less than the administrative distance of the
\nroute via the address.<\/p>\n

However, when we connected the same network to an interface on the router, the real connected route to the network appeared in the routing table:<\/p>\n

C 192.168.22.0\/24 is directly connected, FastEthernet0\/0<\/p>\n

Therefore, its administrative distance must be less than the administrative distance of the
\nroute via the interface. Therefore, it appears that the administrative distance of a static
\nroute via an interface has an administrative distance of something between 0 and 1.<\/p>\n

\"20150215_155303\"<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

mi ricordo il momento in cui Norm era vicino a me, mentre acquistavo il libro per l’esame ccnp route. in realt\u00c3\u00a0 me ne ha fatti comprare 2, “official certification guide” e quello di cui sopra, “implementing cisco ip routing”, perch\u00c3\u00a9 cos\u00c3\u00ac ti impari veramente a fare le cose. prima di fare l’esame non mi sono […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-1466","post","type-post","status-publish","format-standard","hentry","category-tmrc"],"_links":{"self":[{"href":"https:\/\/olografix.sugodipesce.net\/frank\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1466","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/olografix.sugodipesce.net\/frank\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/olografix.sugodipesce.net\/frank\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/olografix.sugodipesce.net\/frank\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/olografix.sugodipesce.net\/frank\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1466"}],"version-history":[{"count":1,"href":"https:\/\/olografix.sugodipesce.net\/frank\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1466\/revisions"}],"predecessor-version":[{"id":1469,"href":"https:\/\/olografix.sugodipesce.net\/frank\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1466\/revisions\/1469"}],"wp:attachment":[{"href":"https:\/\/olografix.sugodipesce.net\/frank\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1466"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/olografix.sugodipesce.net\/frank\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1466"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/olografix.sugodipesce.net\/frank\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1466"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}