{"id":16566,"date":"2019-12-01T11:58:37","date_gmt":"2019-12-01T10:58:37","guid":{"rendered":"https:\/\/blog.wedos.cz\/?p=16566"},"modified":"2019-12-02T07:13:36","modified_gmt":"2019-12-02T06:13:36","slug":"jak-jsme-vylepsovali-trasu-3-a-nove-moznosti-co-nam-to-prinese","status":"publish","type":"post","link":"https:\/\/blog.wedos.com\/cs\/jak-jsme-vylepsovali-trasu-3-a-nove-moznosti-co-nam-to-prinese","title":{"rendered":"Jak jsme vylep\u0161ovali Trasu 3 a nov\u00e9 mo\u017enosti, co n\u00e1m to p\u0159inese"},"content":{"rendered":"

Jak jsme minul\u00fd t\u00fdden sl\u00edbili, tak i kon\u00e1me. Konektivita je pro ka\u017ed\u00e9 datacentrum naprosto kl\u00ed\u010dov\u00e1, a tak jsme se pustili do vylep\u0161ov\u00e1n\u00ed na\u0161ich 100 Gbps tras. Z\u00e1rove\u0148 na\u0161i technici p\u0159ipravuj\u00ed sadu pravideln\u00fdch ostr\u00fdch test\u016f, kter\u00e9 odhal\u00ed jak\u00fdkoliv probl\u00e9m.<\/p>\n

<\/p>\n

Trasa 3 mus\u00ed b\u00fdt vylep\u0161ena a nab\u00eddnout v\u00edce mo\u017enost\u00ed<\/h3>\n

Trasa 3, kter\u00e1 m\u00e1 tak\u00e9 kapacitu 100 Gbps, vede fyzicky od n\u00e1s z Hlubok\u00e9 Nad Vltavou p\u0159es Havl\u00ed\u010dk\u016fv Brod do Prahy. Konkr\u00e9tn\u011b do datacentra T-Mobile – GTS (THP) odkud jsme p\u0159ipojeni na \u017di\u017ekovskou v\u011b\u017e \u010cRa. Tuto trasu vedeme jako z\u00e1lo\u017en\u00ed.<\/p>\n

Rozhodli jsme se ke zm\u011bn\u011b, kter\u00e1 n\u00e1m nab\u00eddne dlouhodob\u011b daleko v\u011bt\u0161\u00ed potenci\u00e1l. Proto veden\u00ed ji\u017e dlouh\u00e9 m\u011bs\u00edce jedn\u00e1 s \u010cD – Telematika, \u017ee bychom mohli vyu\u017e\u00edt jejich nov\u00e9 datacentrum (naz\u00fdvan\u00e9 jako U2). Vzhledem k posledn\u00edm ud\u00e1lostem jsme se v\u0161ak rozhodli jedn\u00e1n\u00ed usp\u00ed\u0161it.<\/p>\n

Jen pro \u00faplnost dod\u00e1v\u00e1me, \u017ee m\u00e1me dal\u0161\u00ed 2 trasy (ka\u017ed\u00e1 100 Gbps) od CETIN, kter\u00e9 vedou 2 r\u016fzn\u00fdmi trasami (jedna p\u0159es T\u00e1bor a druh\u00e1 p\u0159es P\u00edsek) do datacentra Sitel (Ce-Colo).<\/p>\n

V Praze na Sitelu jsme p\u0159ipojeni ke 4 r\u016fzn\u00fdm poskytovatel\u016fm a m\u016f\u017eeme kdykoliv p\u0159idat dal\u0161\u00ed.\u00a0 Na z\u00e1lo\u017en\u00ed trase jsme m\u011bli doposud jen jednoho poskytovatele, co\u017e se n\u00e1m vymstilo, a tak musela p\u0159ij\u00edt zm\u011bna. U\u017e tam m\u00e1me 2 poskytovatele a domlouv\u00e1me dal\u0161\u00ed. Nav\u00edc chyst\u00e1me dal\u0161\u00ed vylep\u0161en\u00ed…<\/p>\n

O co jde?<\/h3>\n

Sou\u010dasn\u00e1 z\u00e1lo\u017en\u00ed trasa byla:<\/p>\n

 DC1 WEDOS Hlubok\u00e1 \u27f6 THP \u27f6 \u017di\u017ekovsk\u00e1 v\u011b\u017e \u010cRa. <\/pre>\n
Rozhodli jsme se, \u017ee to uprav\u00edme a vlo\u017e\u00edme switch pr\u00e1v\u011b do \u010cD – Telematika.<\/p>\n
DC1 WEDOS Hlubok\u00e1 \u27f6 switch \u010cDT (U2) \u27f6 TTC. <\/pre>\n
To n\u00e1m umo\u017en\u00ed vyu\u017e\u00edt potenci\u00e1l datacentra \u010cDT, kde maj\u00ed svou konektivitou v\u00fdznamn\u00ed ISP. O tom v\u0161ak a\u017e d\u00e1le. Aktu\u00e1ln\u011b jsme tam od p\u00e1tku (29.11.2019) p\u0159ipojeni do s\u00edt\u011b \u010cDT.<\/p>\n
P\u0159\u00ed\u0161t\u00ed t\u00fdden budeme propojeni pronajat\u00fdmi optick\u00fdmi vl\u00e1kny, kter\u00e9 budou v po\u010d\u00e1tku osazena 100 Gbps, do datacentra TTC, kde jsou dal\u0161\u00ed v\u00fdznamn\u00ed oper\u00e1to\u0159i a peeringov\u00e9 uzly. Tento fin\u00e1ln\u00ed stav bude dokon\u010den p\u0159\u00ed\u0161t\u00ed t\u00fdden, proto\u017ee \u010dek\u00e1me na prom\u011b\u0159en\u00ed pronajat\u00fdch optick\u00fdch vl\u00e1ken.\u00a0 Do t\u00e9 doby je na\u0161e trasa:<\/p>\n
 DC1 WEDOS \u27f6 \u010cDT (U2) \u27f6 THP \u27f6 \u017di\u017ekovsk\u00e1 v\u011b\u017e \u010cRa<\/pre>\n
V\u0161echno jde, kdy\u017e se chce<\/h3>\n
Celou zm\u011bnu jsme p\u0159ipravovali ji\u017e d\u00e9le ne\u017e p\u016fl roku, ale po\u0159\u00e1d jsme na n\u011bco nebo n\u011bkoho \u010dekali. Posledn\u00edch 11 dn\u00ed jsme m\u011bli hodn\u011b intenzivn\u00edho jedn\u00e1n\u00ed s \u010cDT a b\u011bhem tohoto t\u00fddne se v\u0161e domluvilo. Trochu jsme m\u011bli obavu, \u017ee bude probl\u00e9m sehnat od dodavatel\u016f vhodn\u00fd 100 Gbps switch, proto\u017ee takov\u00fdto hardware se b\u011b\u017en\u011b skladem nedr\u017e\u00ed. Kdo v \u010cR pot\u0159ebuje ze dne na den 100 Gbps zna\u010dkov\u00fd hardware, \u017ee? Tedy a\u017e na WEDOS \ud83d\ude42<\/p>\n
M\u011bli jsme v\u0161ak \u0161t\u011bst\u00ed a jeden dodavatel jej m\u011bl skladem a nav\u00edc byl schopn\u00fd doru\u010dit n\u00e1m jej hned druh\u00fd den. Dal\u0161\u00ed mo\u017enost\u00ed bylo zakoupen\u00ed switche u dodavatele v N\u011bmecku, kter\u00fd jej um\u00ed doru\u010dit\u00a0 do n\u011bkolika hodin (nebo si pro n\u011bj m\u016f\u017eeme sami dojet do Mnichova).<\/p>\n
Jen pro po\u0159\u00e1dek. M\u00e1me samoz\u0159ejm\u011b skladem r\u016fzn\u00e9 n\u00e1hradn\u00ed switche 40 Gbps a 10 Gbps, proto\u017ee ty pou\u017e\u00edv\u00e1me b\u011b\u017en\u011b. Ostatn\u00ed prvky v s\u00edti, kter\u00e9 m\u00e1me 100 Gbps jsou v siti du\u00e1ln\u011b. N\u00e1mi pou\u017e\u00edvan\u00e9 switche maj\u00ed porty 6 x 100 Gbps. V Praze n\u00e1m nyn\u00ed sta\u010d\u00ed switch s 3 porty.<\/p>\n
P\u0159\u00edprava, konfigurace a domlouv\u00e1n\u00ed detail\u016f trvalo den. Nov\u00fd switch DELL m\u00e1 3 porty 100 Gbps a 12 port\u016f 10 Gbps.<\/p>\n
P\u0159ipravili\u00a0 jsme 100 Gbps QSFP28 moduly a k tomu 10 Gbps (SFP+), dali ob\u011bd a\u00a0 nic n\u00e1m tak nebr\u00e1nilo vyrazit v p\u00e1tek do Prahy.<\/p>\n
\"\"<\/a>
100 Gbps modul. P\u0159ekvap\u00ed v\u00e1s nejen jeho cena ale i hmotnost a jak se dok\u00e1\u017ee zah\u0159\u00e1t \ud83d\ude42<\/figcaption><\/figure>\n
\u00a0<\/p>\n
Switch slou\u017e\u00ed jen jako „agrega\u010dn\u00ed“ pro jednotliv\u00e9 konektivity od jednotliv\u00fdch poskytovatel\u016f konektivity a pomoc\u00ed vlan\u016f tuto konektivitu pos\u00edl\u00e1me na Hlubokou. Tam v\u0161e routujeme pomoc\u00ed za\u0159\u00edzen\u00ed Arista a filtrujeme pomoc\u00ed na\u0161\u00ed DDoS ochrany. Ale o tom zase p\u0159\u00ed\u0161t\u011b. Jen pro \u0161karohl\u00eddy dod\u00e1v\u00e1me, \u017ee pou\u017e\u00edv\u00e1me plnou BGP tabulku<\/strong>. Neroutujeme ani na linuxech… Ale o tom nap\u00ed\u0161eme zase taky a\u017e p\u0159\u00ed\u0161t\u011b.\u00a0<\/p>\n
Cesta do Prahy a instalace<\/h3>\n
V p\u00e1tek v odpoledn\u00edch hodin\u00e1ch jsme vyrazili do Prahy. V datacentru \u010cDT jsme zat\u00edm je\u0161t\u011b nebyli. Vzali jsme tak i p\u00e1r balen\u00ed WEDOS Energy<\/a>, aby si n\u00e1s zapamatovali \ud83d\ude42 S n\u011bkter\u00fdmi z nich jsme p\u0159itom v kontaktu 15 let a je\u0161t\u011b jsme se nikdy osobn\u011b nevid\u011bli…<\/p>\n
\"\"<\/a><\/p>\n
Mus\u00edme zm\u00ednit, \u017ee o n\u00e1s v \u010cDT bylo dob\u0159e postar\u00e1no a zam\u011bstnanci, kte\u0159\u00ed n\u00e1m s instalac\u00ed pom\u00e1hali, na n\u00e1s ud\u011blali velmi dobr\u00fd profesion\u00e1ln\u00ed i lidsk\u00fd dojem.<\/p>\n
Samotn\u00e1 instalace switche nebyla n\u00e1ro\u010dn\u00e1. Potom jsme ud\u011blali n\u011bkolik p\u0159epojen\u00ed optick\u00fdch kabel\u016f a zb\u00fdvalo jen domluvit telefonicky p\u0159ehozen\u00ed BGP routov\u00e1n\u00ed a otestovat,\u00a0 zda v\u0161e funguje. To zabralo nejv\u00edce \u010dasu.<\/p>\n
\"\"<\/a><\/p>\n
Zhruba za dv\u011b hodinky bylo v\u0161e hotov\u00e9. V pond\u011bl\u00ed se je\u0161t\u011b dolad\u00ed posledn\u00ed detaily. Ehm t\u0159eba posledn\u00ed pap\u00edry a povolen\u00ed p\u0159\u00edstup\u016f pro na\u0161e pracovn\u00edky…\u00a0<\/p>\n
\"\"<\/a><\/p>\n
Co um\u00edst\u011bn\u00ed switche v datacentru \u010cD – Telematika\u00a0 znamen\u00e1<\/h3>\n
Zd\u00e1 se to jako mali\u010dkost. V\u017edy\u0165 Trasa 3 je z\u00e1lo\u017en\u00ed a prakticky p\u0159es n\u00ed nete\u010de \u017e\u00e1dn\u00fd provoz. Prim\u00e1rn\u011b je te\u010f nejd\u016fle\u017eit\u011bj\u0161\u00ed, aby v\u0161e fungovalo i pokud bude na dvou prim\u00e1rn\u00edch tras\u00e1ch n\u011bkolik dn\u00ed trvaj\u00edc\u00ed probl\u00e9m (od Hlubok\u00e9 a\u017e po c\u00edlov\u00e9 datacentrum SITEL (Ce Colo)).<\/p>\n
Z dlouhodob\u00e9ho hlediska n\u00e1m switch v \u010cDT umo\u017en\u00ed p\u0159ipojit se p\u0159\u00edmo k dal\u0161\u00edm ISP v datracentru \u010cDT anebo p\u0159es n\u011b do dal\u0161\u00edch datacenter v Praze. Prost\u011b poslou\u017e\u00ed jako rozcestn\u00edk, t\u0159eba pro p\u0159ipojen\u00ed do n\u011bjak\u00e9ho peeringu (NIX, Peering.cz). Jedn\u00e1 se tedy o strategick\u00fd prvek v na\u0161\u00ed s\u00ed\u0165ov\u00e9 infrastruktu\u0159e.<\/p>\n
Zaj\u00edmav\u00e1 je tak\u00e9 \u00favaha p\u0159\u00edm\u00e9ho p\u0159ipojen\u00ed k n\u011bjak\u00e9mu velk\u00e9mu poskytovateli internetu. Jejich z\u00e1kazn\u00edci by pak m\u011bli p\u0159\u00edm\u00fd p\u0159\u00edstup nap\u0159\u00edklad k v\u00edce jak 210 tis\u00edc\u016fm .cz dom\u00e9n\u00e1m, kter\u00e9 u n\u00e1s na Hlubok\u00e9 hostuj\u00ed. Za p\u00e1r t\u00fddn\u016f spust\u00edme do ostr\u00e9ho provozu na\u0161e druh\u00e9 datacentrum a v\u011b\u0159\u00edme, \u017ee po\u010det n\u00e1mi hostovan\u00fdch dom\u00e9n poroste rychle vzh\u016fru.<\/p>\n
V\u011bci se tak hnuly kup\u0159edu a m\u016f\u017eeme postoupit d\u00e1l v jedn\u00e1n\u00ed o Trase 4 p\u0159es \u010cesk\u00e9 Bud\u011bjovice. Optiku tam u\u017e m\u00e1me p\u0159ipravenou a lad\u00edme s \u010cDT posledn\u00ed detaily. Te\u010f pot\u0159ebujeme v \u010cesk\u00fdch Bud\u011bjovic\u00edch za\u010d\u00edt domlouvat spolupr\u00e1ci s dal\u0161\u00edmi ISP, kte\u0159\u00ed tam maj\u00ed konektivitu. Na\u0161im c\u00edlem je, abychom se p\u0159es Trasu 4 dok\u00e1zali vyhnout Praze. Pokud by se tam n\u011bco v\u00e1\u017en\u00e9ho stalo, tak pot\u0159ebujeme, aby slu\u017eby na\u0161ich z\u00e1kazn\u00edk\u016f fungovaly d\u00e1l a i kdyby Praha m\u011bla velk\u00fd v\u00fdpadek. Tak\u017ee v \u010cB budeme nyn\u00ed vyb\u00edrat spojen\u00ed do zahrani\u010d\u00ed. Bude to sice jen z\u00e1loha, ale nechceme nic podce\u0148ovat.\u00a0<\/p>\n\n\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
Jak jsme minul\u00fd t\u00fdden sl\u00edbili, tak i kon\u00e1me. Konektivita je pro ka\u017ed\u00e9 datacentrum naprosto kl\u00ed\u010dov\u00e1, a tak jsme se pustili do vylep\u0161ov\u00e1n\u00ed na\u0161ich 100 Gbps tras. Z\u00e1rove\u0148 na\u0161i technici p\u0159ipravuj\u00ed sadu pravideln\u00fdch ostr\u00fdch test\u016f, kter\u00e9 odhal\u00ed jak\u00fdkoliv probl\u00e9m.<\/p>\n","protected":false},"author":9,"featured_media":16582,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[102,10,46],"class_list":["post-16566","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technologie","tag-cd-telematika","tag-konektivita","tag-technologie"],"_links":{"self":[{"href":"https:\/\/blog.wedos.com\/cs\/wp-json\/wp\/v2\/posts\/16566","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.wedos.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.wedos.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.wedos.com\/cs\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.wedos.com\/cs\/wp-json\/wp\/v2\/comments?post=16566"}],"version-history":[{"count":10,"href":"https:\/\/blog.wedos.com\/cs\/wp-json\/wp\/v2\/posts\/16566\/revisions"}],"predecessor-version":[{"id":16761,"href":"https:\/\/blog.wedos.com\/cs\/wp-json\/wp\/v2\/posts\/16566\/revisions\/16761"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.wedos.com\/cs\/wp-json\/wp\/v2\/media\/16582"}],"wp:attachment":[{"href":"https:\/\/blog.wedos.com\/cs\/wp-json\/wp\/v2\/media?parent=16566"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.wedos.com\/cs\/wp-json\/wp\/v2\/categories?post=16566"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.wedos.com\/cs\/wp-json\/wp\/v2\/tags?post=16566"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}