{"id":54186,"date":"2019-12-20T00:00:00","date_gmt":"2019-12-19T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/test-kommutatorov-tp-link-c-long-range-poe-i-nemnogo-pro-apgrejdy-staryh-modelej"},"modified":"2020-02-18T14:02:10","modified_gmt":"2020-02-18T11:02:10","slug":"test-kommutatorov-tp-link-c-long-range-poe-i-nemnogo-pro-apgrejdy-staryh-modelej","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/administrirovanie\/test-kommutatorov-tp-link-c-long-range-poe-i-nemnogo-pro-apgrejdy-staryh-modelej","title":{"rendered":"Testy p\u0159ep\u00edna\u010d\u016f TP-Link s Long range PoE. A trochu o upgradech star\u00fdch model\u016f","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

V minulosti jsme vyv\u00edjeli technologii Power over Ethernet v na\u0161ich p\u0159ep\u00edna\u010d\u00edch pouze sm\u011brem k zvy\u0161ov\u00e1n\u00ed p\u0159en\u00e1\u0161en\u00e9ho v\u00fdkonu. B\u011bhem provozu \u0159e\u0161en\u00ed s PoE a PoE+ se v\u0161ak uk\u00e1zalo, \u017ee to je nedostate\u010dn\u00e9. Na\u0161i z\u00e1kazn\u00edci se setk\u00e1vaj\u00ed nejen s nedostatkem energetick\u00e9ho rozpo\u010dtu, ale tak\u00e9 s b\u011b\u017en\u00fdm omezen\u00edm Ethernetov\u00fdch s\u00edt\u00ed \u2014 d\u00e9lkou p\u0159enosu dat 100 m. V tomto \u010dl\u00e1nku v\u00e1m uk\u00e1\u017eeme, jak jsme toto omezen\u00ed p\u0159ekonali a otestujeme long range PoE v praxi.<\/p>\n

\"Testy
\n<\/a><\/noindex><\/p>\n

K \u010demu je technologie PoE long range<\/h2>\n

\nSto metr\u016f je hodn\u011b. O to v\u00edc, \u017ee kabel se nikdy nevede v p\u0159\u00edmce: je pot\u0159eba obej\u00edt v\u0161echny zat\u00e1\u010dky budovy, vystoupat nebo sestoupit z jednoho kabelov\u00e9ho kan\u00e1lu na druh\u00fd a tak d\u00e1le. I v budov\u00e1ch st\u0159edn\u00ed velikosti m\u016f\u017ee omezen\u00ed d\u00e9lky Ethernetov\u00e9ho segmentu p\u0159edstavovat probl\u00e9m pro administr\u00e1tora.\u00a0<\/p>\n

Rozhodli jsme se n\u00e1zorn\u011b demonstrovat na p\u0159\u00edkladu \u0161koln\u00ed budovy, kter\u00e9 za\u0159\u00edzen\u00ed budou schopna p\u0159ij\u00edmat elektrickou energii pomoc\u00ed PoE a p\u0159ipojit se k s\u00edti (zelen\u00e9 hv\u011bzdi\u010dky), a kter\u00e9 ne (\u010derven\u00e9 hv\u011bzdi\u010dky). Pokud nelze s\u00ed\u0165ov\u00e9 za\u0159\u00edzen\u00ed nainstalovat mezi objekty, nebudou se na krajn\u00edch bodech za\u0159\u00edzen\u00ed moci p\u0159ipojit:<\/p>\n

\"Testy
\n
\nAbychom p\u0159ekonali omezen\u00ed d\u00e9lky, pou\u017e\u00edv\u00e1 se technologie Long Range PoE: ta umo\u017e\u0148uje roz\u0161\u00ed\u0159it pokryt\u00ed dr\u00e1tov\u00e9 s\u00edt\u011b a p\u0159ipojit u\u017eivatele vzd\u00e1len\u00e9 a\u017e 250 metr\u016f. P\u0159i pou\u017eit\u00ed Long Range PoE prob\u00edh\u00e1 p\u0159enos dat a elektrick\u00e9 energie dv\u011bma zp\u016fsoby:<\/p>\n

    \n
  1. Pokud je rychlost rozhran\u00ed 10 Mbps (b\u011b\u017en\u00fd Ethernet), je na segmentech dlouh\u00fdch a\u017e 250 metr\u016f mo\u017en\u00fd sou\u010dasn\u00fd p\u0159enos jak energie, tak dat.\n<\/li>\n
  2. Pokud je rychlost rozhran\u00ed nastavena na 100 Mbps (pro modely TL-SL1218MP a TL-SG1218MPE) nebo 1 Gbps (pro model TL-SG1218MPE), nebude p\u0159enos dat prob\u00edhat \u2014 pouze p\u0159enos energie. V takov\u00e9m p\u0159\u00edpad\u011b bude zapot\u0159eb\u00ed n\u011bjak\u00fd jin\u00fd zp\u016fsob, jak p\u0159en\u00e1\u0161et data, nap\u0159\u00edklad paraleln\u011b veden\u00e1 optick\u00e1 linka. Long Range PoE se v tomto p\u0159\u00edpad\u011b bude pou\u017e\u00edvat pouze pro vzd\u00e1len\u00e9 nap\u00e1jen\u00ed.\n<\/li>\n<\/ol>\n

    \nT\u00edm p\u00e1dem, p\u0159i pou\u017eit\u00ed Long Range PoE na stejn\u00e9 \u0161koln\u00ed plo\u0161e lze s\u00ed\u0165ov\u00e9 za\u0159\u00edzen\u00ed, kter\u00e9 podporuje rychlost 10 Mbps, um\u00edstit kdekoli.<\/p>\n

    \u00a0\"Testy
    \n<\/p>\n

    Co um\u00ed p\u0159ep\u00edna\u010de s podporou Long Range PoE<\/h2>\n

    \nFunkce Long Range PoE je dostupn\u00e1 u dvou p\u0159ep\u00edna\u010d\u016f v \u0159ad\u011b TP-Link: TL-SG1218MPE<\/a><\/noindex> a TL-SL1218MP<\/a><\/noindex>.<\/p>\n

    TL-SL1218MP pat\u0159\u00ed mezi ne\u0159\u00edzen\u00e9 p\u0159ep\u00edna\u010de. M\u00e1 16 port\u016f, jeho celkov\u00fd PoE rozpo\u010det je 192 W, co\u017e umo\u017e\u0148uje nap\u00e1jen\u00ed s v\u00fdkonem a\u017e 30 W na port. Pokud nedojde k p\u0159ekro\u010den\u00ed energetick\u00e9ho rozpo\u010dtu, mohou nap\u00e1jen\u00ed p\u0159ij\u00edmat v\u0161echny 16 port\u016f Fast Ethernet.\u00a0\u00a0<\/p>\n

    \"Testy
    \n
    \nNastaven\u00ed se prov\u00e1d\u00ed pomoc\u00ed p\u0159ep\u00edna\u010d\u016f na p\u0159edn\u00edm panelu: jeden aktivuje re\u017eim Long Range PoE a druh\u00fd nastavuje prioritu port\u016f p\u0159i distribuci energetick\u00e9ho rozpo\u010dtu p\u0159ep\u00edna\u010de.\u00a0<\/p>\n

    TL-SG1218MPE pat\u0159\u00ed mezi Easy Smart p\u0159ep\u00edna\u010de. Spravovat za\u0159\u00edzen\u00ed lze prost\u0159ednictv\u00edm webov\u00e9ho rozhran\u00ed nebo specializovan\u00fdch n\u00e1stroj\u016f.\u00a0<\/p>\n

    \"Testy
    \n
    \nV sekci rozhran\u00ed System maj\u00ed administr\u00e1to\u0159i k dispozici standardn\u00ed rutinn\u00ed operace: zm\u011bna p\u0159ihla\u0161ovac\u00edho jm\u00e9na a hesla pro administr\u00e1torsk\u00fd \u00fa\u010det, nastaven\u00ed IP adresy spr\u00e1vcovsk\u00e9ho modulu, aktualizace firmwaru a dal\u0161\u00ed.<\/p>\n

    \"Testy
    \n
    \nRe\u017eimy pr\u00e1ce port\u016f se nastavuj\u00ed v sekci Switching \u2192 Port Setting. Pomoc\u00ed ostatn\u00edch z\u00e1lo\u017eek sekce lze zap\u00ednat\/vyp\u00ednat IGMP a sdru\u017eovat fyzick\u00e9 rozhran\u00ed do skupin.<\/p>\n

    \"Testy
    \n
    \nV sekci Monitoring jsou uvedeny statistick\u00e9 \u00fadaje o pr\u00e1ci port\u016f p\u0159ep\u00edna\u010de. D\u00e1le zde lze zrcadlit provoz, zap\u00ednat nebo vyp\u00ednat ochranu proti smy\u010dk\u00e1m a spou\u0161t\u011bt vestav\u011bn\u00e9ho kabelov\u00e9ho testera.<\/p>\n

    \"Testy
    \n
    \nP\u0159ep\u00edna\u010d TL-SG1218MPE podporuje n\u011bkolik re\u017eim\u016f pr\u00e1ce s virtu\u00e1ln\u00edmi s\u00edt\u011bmi: ozna\u010dov\u00e1n\u00ed 802.1q, VLAN na z\u00e1klad\u011b portu a tak\u00e9 MTU VLAN. P\u0159i pr\u00e1ci v re\u017eimu MTU VLAN p\u0159ep\u00edna\u010d povoluje pouze v\u00fdm\u011bnu provozu mezi u\u017eivatelsk\u00fdmi porty a uplink rozhran\u00edm, tedy v\u00fdm\u011bna provozu mezi u\u017eivatelsk\u00fdmi porty je p\u0159\u00edmo zak\u00e1z\u00e1na. Tato technologie se tak\u00e9 naz\u00fdv\u00e1 Asymmetric VLAN nebo Private VLAN. Pou\u017e\u00edv\u00e1 se pro zv\u00fd\u0161en\u00ed bezpe\u010dnosti s\u00edt\u011b, aby p\u0159i fyzick\u00e9m p\u0159ipojen\u00ed k p\u0159ep\u00edna\u010di nem\u011bl \u00fato\u010dn\u00edk mo\u017enost zachytit ovl\u00e1d\u00e1n\u00ed za\u0159\u00edzen\u00ed.<\/p>\n

    \"Testy
    \n
    \nV sekci QoS lze nastavit prioritu rozhran\u00ed, nakonfigurovat omezen\u00ed rychlosti u\u017eivatelsk\u00e9ho provozu a tak\u00e9 se pot\u00fdkat se bou\u0159emi.<\/p>\n

    \"Testy
    \n
    \nV sekci PoE Config m\u016f\u017ee administr\u00e1tor nucen\u011b omezit maxim\u00e1ln\u00ed v\u00fdkon dostupn\u00fd ur\u010dit\u00e9mu odb\u011brateli, nastavit energetickou prioritu rozhran\u00ed, zapnout nebo vypnout odb\u011bratele.<\/p>\n

    Testujeme Long Range<\/h2>\n

    \n\"Testy
    \n
    \nV modelu TL-SL1218MP jsme zahrnuli podporu Long Range pro prvn\u00edch osm port\u016f. N\u00e1\u0161 testovac\u00ed IP telefon \u00fasp\u011b\u0161n\u011b za\u010dal fungovat. Z nastaven\u00ed telefonu jsme zjistili, \u017ee dohodnut\u00e1 rychlost je 10 Mbps. Pot\u00e9 jsme p\u0159epnuli p\u0159ep\u00edna\u010d Long Range PoE do stavu Off a ov\u011b\u0159ili, co se stane s testovac\u00edm telefonem po tomto kroku. Za\u0159\u00edzen\u00ed se \u00fasp\u011b\u0161n\u011b spustilo a informovalo o pou\u017e\u00edv\u00e1n\u00ed re\u017eimu 100 Mbps na sv\u00e9m s\u00ed\u0165ov\u00e9m rozhran\u00ed, av\u0161ak data p\u0159es kan\u00e1l nebyla p\u0159en\u00e1\u0161ena a telefon se neregistroval na stanici. Tak\u017ee nap\u00e1jen\u00ed spot\u0159ebi\u010d\u016f p\u0159ipojen\u00fdch prodlou\u017een\u00fdmi Ethernet kan\u00e1ly je mo\u017en\u00e9 i bez aktivace re\u017eimu Long Range PoE, ov\u0161em v tomto p\u0159\u00edpad\u011b bude p\u0159es kan\u00e1l p\u0159en\u00e1\u0161eno pouze nap\u00e1jen\u00ed, nikoli data.<\/p>\n

    V standardn\u00edm re\u017eimu nap\u00e1jen\u00ed p\u0159es Ethernet (kdy\u017e d\u00e9lka segmentu nep\u0159esahuje 100 metr\u016f) prob\u00edh\u00e1 p\u0159enos energie a dat p\u0159i rychlostech a\u017e 1 Gbps v\u010detn\u011b. Kontrola funkce telefonn\u00edho p\u0159\u00edstroje nap\u00e1jen\u00e9ho pomoc\u00ed PoE a p\u0159ipojen\u00e9ho kabelem maxim\u00e1ln\u00ed d\u00e9lky prob\u011bhla \u00fasp\u011b\u0161n\u011b.<\/p>\n

    \"Testy
    \n
    \nNa p\u0159ep\u00edna\u010di TL-SG1218MPE jsme p\u0159epnuli port do re\u017eimu 10 Mbps Half Duplex \u2014 za\u0159\u00edzen\u00ed se \u00fasp\u011b\u0161n\u011b p\u0159ipojilo.<\/p>\n

    \"Testy
    \n
    \nP\u0159irozen\u011b jsme cht\u011bli zjistit, kolik energie telefon p\u0159i takov\u00e9m p\u0159ipojen\u00ed spot\u0159ebov\u00e1v\u00e1, a uk\u00e1zalo se, \u017ee pouze 1,6 W.<\/p>\n

    C:>ping -t 192.168.1.10\nPingov\u00e1n\u00ed 192.168.1.10 s 32 bajty dat:\nOdpov\u011b\u010f od 192.168.1.10: bytes=32 time<1ms TTL=64\nOdpov\u011b\u010f od 192.168.1.10: bytes=32 time<1ms TTL=64\nOdpov\u011b\u010f od 192.168.1.10: bytes=32 time<1ms TTL=64\nOdpov\u011b\u010f od 192.168.1.10: bytes=32 time<1ms TTL=64\nOdpov\u011b\u010f od 192.168.1.10: bytes=32 time<1ms TTL=64\nOdpov\u011b\u010f od 192.168.1.10: bytes=32 time<1ms TTL=64\nOdpov\u011b\u010f od 192.168.1.10: bytes=32 time<1ms TTL=64\nOdpov\u011b\u010f od 192.168.1.10: bytes=32 time<1ms TTL=64\nOdpov\u011b\u010f od 192.168.1.10: bytes=32 time<1ms TTL=64\n\u017d\u00e1dost vyhov\u011bla \u010dasov\u00e9mu limitu.\n\u017d\u00e1dost vyhov\u011bla \u010dasov\u00e9mu limitu.\n\u017d\u00e1dost vyhov\u011bla \u010dasov\u00e9mu limitu.\n\u017d\u00e1dost vyhov\u011bla \u010dasov\u00e9mu limitu.\n\u017d\u00e1dost vyhov\u011bla \u010dasov\u00e9mu limitu.\n\u017d\u00e1dost vyhov\u011bla \u010dasov\u00e9mu limitu.\n\u017d\u00e1dost vyhov\u011bla \u010dasov\u00e9mu limitu.\nPingov\u00e9 statistiky pro 192.168.1.10:\n\u00a0\u00a0\u00a0\u00a0Pakety: Odesl\u00e1no = 16, P\u0159ijato = 9, Ztraceno = 7 (43% ztr\u00e1ta),\nP\u0159ibli\u017en\u00e9 doby round trip v milisekund\u00e1ch:\n\u00a0\u00a0\u00a0\u00a0Minim\u00e1ln\u00ed = 0ms, Maxim\u00e1ln\u00ed = 0ms, Pr\u016fm\u011brn\u00e1 = 0ms\nControl-C\n<\/code><\/pre>\n
    \nAle pokud p\u0159epneme rozhran\u00ed p\u0159ep\u00edna\u010de do re\u017eimu 100 Mbps Half Duplex nebo 100 Mbps Full Duplex, spojen\u00ed s telefonem se okam\u017eit\u011b ztr\u00e1c\u00ed a neobnov\u00ed se.<\/p>\n
    \"Testy
    \n
    \nSamotn\u00e9 rozhran\u00ed je ve stavu Link Down.<\/p>\n
    \"Testy
    \n
    \nT\u00e9m\u011b\u0159 to sam\u00e9 se stane, pokud p\u0159epneme rozhran\u00ed do re\u017eimu automatick\u00e9ho vyjedn\u00e1v\u00e1n\u00ed rychlosti a duplexu. Proto jedin\u00fdm zp\u016fsobem, jak pou\u017e\u00edvat tak dlouh\u00e9 Ethernet segmenty, je ru\u010dn\u00ed nastaven\u00ed rychlosti spojen\u00ed na 10 Mbps.<\/p>\n
    \"Testy
    \n
    \nBohu\u017eel, tak dlouh\u00e9 kabelov\u00e9 segmenty nejsou detekov\u00e1ny vestav\u011bn\u00fdm kabelov\u00fdm testerem.<\/p>\n
    Aktualizace dal\u0161\u00edch PoE switch\u016f<\/h2>\n
    \nVzhledem k tomu, \u017ee po\u010det za\u0159\u00edzen\u00ed nap\u00e1jen\u00fdch p\u0159es PoE neust\u00e1le roste, aktualizovali jsme nap\u00e1jec\u00ed zdroje u star\u0161\u00edch model\u016f. Nyn\u00ed m\u00edsto nap\u00e1jec\u00edch zdroj\u016f s v\u00fdkonem 110 W a 192 W budou ve v\u0161ech modelech nap\u00e1jec\u00ed zdroje s v\u00fdkonem 150 W a 250 W. V\u0161echny tyto zm\u011bny si m\u016f\u017eete prohl\u00e9dnout v tabulce:<\/p>\n
    \"Testy
    \n
    \nJakmile technologie PoE za\u010dala pronikat na spot\u0159ebitelsk\u00fd trh, dal\u0161\u00edm zm\u011bnou v modelov\u00e9m \u0159ad\u011b se stalo zaveden\u00ed switch\u016f ur\u010den\u00fdch pro mal\u00e9 kancel\u00e1\u0159e a dom\u00e1c\u00ed pou\u017eit\u00ed.<\/p>\n
    V \u0159ad\u011b ne\u0159\u00edzen\u00fdch Fast Ethernet switch\u016f byly v roce 2019 uvedeny modely TL-SF1005P<\/a><\/noindex> a TL-SF1008P<\/a><\/noindex> s 5 a 8 porty. Energetick\u00fd rozpo\u010det model\u016f \u010din\u00ed 58 W a m\u016f\u017ee b\u00fdt rozd\u011blen mezi \u010dty\u0159i rozhran\u00ed (a\u017e 15,4 W na port). Tyto switche nemaj\u00ed ventil\u00e1tory, mohou st\u00e1t p\u0159\u00edmo v kancel\u00e1\u0159\u00edch a pracovn\u00edch prostor\u00e1ch, bytech a mohou b\u00fdt pou\u017eity k p\u0159ipojen\u00ed jak\u00fdchkoli IP kamer a IP telefon\u016f. Switche mohou prioritn\u011b rozd\u011blovat energii: v p\u0159\u00edpad\u011b p\u0159et\u00ed\u017een\u00ed se vyp\u00ednaj\u00ed za\u0159\u00edzen\u00ed s n\u00edzkou prioritou.<\/p>\n
    Modely TL-SG1005P<\/a><\/noindex> a TL-SG1008P<\/a><\/noindex>, stejn\u011b jako modely SF, jsou ur\u010deny pro desktopovou instalaci, nicm\u00e9n\u011b maj\u00ed integrovan\u00fd gigabitov\u00fd switch, co\u017e umo\u017e\u0148uje p\u0159ipojit vysokorychlostn\u00ed koncov\u00e1 za\u0159\u00edzen\u00ed s podporou 802.3af.\u00a0<\/p>\n
    Switch TL-SG1008MP<\/a><\/noindex> m\u016f\u017ee b\u00fdt um\u00edst\u011bn jak na stole, tak v racku. Tento model m\u00e1 osm port\u016f Gigabit Ethernet, ke ka\u017ed\u00e9mu z nich\u017e m\u016f\u017ee b\u00fdt p\u0159ipojeno za\u0159\u00edzen\u00ed s podporou IEEE 802.3af\/at a v\u00fdkonem a\u017e 30 W. Celkov\u00fd energetick\u00fd rozpo\u010det za\u0159\u00edzen\u00ed tvo\u0159\u00ed 126 W. Vlastnost\u00ed switche je podpora \u00fasporn\u00e9ho re\u017eimu, p\u0159i kter\u00e9m switch periodicky pinguje sv\u00e9 porty, a v p\u0159\u00edpad\u011b absence p\u0159ipojen\u00e9ho za\u0159\u00edzen\u00ed vyp\u00edn\u00e1 nap\u00e1jen\u00ed. To umo\u017e\u0148uje sn\u00ed\u017eit spot\u0159ebu energie o 75%.\u00a0<\/p>\n
    Krom\u011b TL-SG1218PE se v \u0159ad\u011b \u0159\u00edzen\u00fdch switch\u016f TP-Link nach\u00e1zej\u00ed modely TL-SG108PE <\/a><\/noindex>a TL-SG1016PE<\/a><\/noindex>. Maj\u00ed shodn\u00fd celkov\u00fd energetick\u00fd rozpo\u010det za\u0159\u00edzen\u00ed \u2014 55 W. Tento rozpo\u010det m\u016f\u017ee b\u00fdt redistribuov\u00e1n mezi \u010dty\u0159i porty s v\u00fdstupn\u00edm v\u00fdkonem a\u017e 15,4 W na port. Tyto switche maj\u00ed stejn\u00fd firmware jako TL-SG1218PE, a proto i stejn\u00e9 funkce: monitoring s\u00edt\u011b, prioritizace provozu, QoS, MTU VLAN.<\/p>\n
    \u00dapln\u00fd popis modelov\u00e9ho \u0159ady PoE za\u0159\u00edzen\u00ed TP-Link je k dispozici na odkazu<\/a><\/noindex><\/i>.<\/i>
    \n
    Zdroj:     habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"
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