Khokahano ea MICROCHIP Tlhophiso ea Tsamaiso ea Phoso
Tlhahisoleseding ya Sehlahiswa
CFM Configuration Guide ke tokomane e hlalosang mokhoa oa ho seta likarolo tsa Connectivity Fault Management (CFM) bakeng sa marang-rang. CFM e hlalosoa ke maemo a IEEE 802.1ag mme e fana ka liprothokholo le mekhoa ea OAM (Ts'ebetso, Tsamaiso, le Tlhokomelo) bakeng sa litsela tse fetang 802.1 marokho le LAN. Tataiso e fana ka litlhaloso le litlhaloso tsa libaka tsa tlhokomelo, mekhatlo, lintlha tsa ho qetela, le lintlha tse bohareng. E boetse e hlalosa liprothokholo tse tharo tsa CFM: Continuity Check Protocol, Link Trace, le Loopback.
Litaelo tsa Tšebeliso ea Sehlahisoa
- Bala CFM Configuration Guide ka hloko ho utloisisa mokhoa oa ho seta likarolo tsa CFM.
- Hlophisa libaka tsa tlhokomelo ka mabitso le maemo ho latela boleng bo khothalelitsoeng. Libaka tsa bareki li lokela ho ba tse kholo ka ho fetisisa (mohlala, 7), libaka tsa bafani li lokela ho ba lipakeng (mohlala, 3), 'me libaka tsa basebetsi li lokela ho ba tse nyenyane ka ho fetisisa (mohlala, 1).
- Hlalosa mekhatlo ea tlhokomelo e le lihlopha tsa MEP tse hlophisitsoeng ka MAID (Identifier ea Maintenance Association) le boemo ba MD. MEP e 'ngoe le e 'ngoe e lokela ho hlophisoa ka MEPID e ikhethang ka har'a boemo boo ba MAID le MD, 'me li-MEP kaofela li lokela ho hlophisoa ka lethathamo le felletseng la li-MEPID.
- Beha lintlha tsa ho qetela tsa mokhatlo oa tlhokomelo (MEPs) moeling oa sebaka sa marang-rang ho hlalosa moeli oa sebaka. Li-MEP li lokela ho romela le ho amohela liforeimi tsa CFM ka tšebetso ea relay le ho theola liforeimi tsohle tsa CFM tsa boemo ba eona kapa tlase tse tsoang lehlakoreng la terata.
- Hlophisa tlhokomelo ea domain intermediate points (MIPs) ka hare ho sebaka empa eseng moeling. Liforeimi tsa CFM tse amohetsoeng ho tsoa ho MEPs le li-MIP tse ling li lokela ho thathamisoa le ho romelloa, ha liforeimi tsohle tsa CFM tse maemong a tlase li lokela ho emisoa le ho theoa. Li-MIP ke lintlha tse sa sebetseng 'me li arabela feela ha li hlahisoa ke CFM trace route le melaetsa ea loop-back.
- Theha Protocol ea Continuity Check Protocol (CCP) ka ho fetisetsa melaetsa ea nako le nako ea ho Tsoela Pele ho Tsoela Pele (CCMs) ho ea ho li-MEP tse ling ho bona liphoso tsa khokahano ho MA.
- Lokisa melaetsa ea Link Trace (LT), eo hape e tsejoang e le Mac Trace Route, e leng liforeimi tse ngata tseo MEP e li fetisang ho latela tsela (hop-by-hop) ho ea sebakeng sa MEP. E mong le e mong ea amohelang MEP o lokela ho romela Trace Route Reply ka ho toba ho Originating MEP le ho tsosolosa Trace Route Message.
- Etsa bonnete ba hore u latela litaelo le liprothokholo tse ling kaofela tse fanoeng ho Tataiso ea CFM Configuration bakeng sa ho seta ka katleho likarolo tsa CFM.
Selelekela
Tokomane ena e hlalosa mokhoa oa ho seta likarolo tsa Connectivity Fault Management (CFM). Tsamaiso ea Phoso ea Khokahano e hlalosoa ke maemo a IEEE 802.1ag. E hlalosa li-protocol le mekhoa ea OAM (Ts'ebetso, Tsamaiso, le Tlhokomelo) bakeng sa litsela tse fetang 802.1 marokho le marang-rang a libaka (LANs). IEEE 802.1ag e ts'oana haholo le ITU-T Recommendation Y.1731, eo hape e sebetsanang le tlhahlobo ea ts'ebetso.
IEEE 802.1ag
E hlalosa libaka tsa tlhokomelo, libaka tsa bona tsa tlhokomelo, le lintho tse laoloang tse hlokehang ho li theha le ho li tsamaisa E hlalosa kamano pakeng tsa libaka tsa tlhokomelo le litšebeletso tse fanoang ke marokho a hlokomelang VLAN le marokho a bafani E hlalosa mekhoa le mekhoa e sebelisoang ke lintlha tsa tlhokomelo ho boloka le ho hlahloba liphoso tsa khokahanyo ka har'a sebaka sa tlhokomelo;
Litlhaloso
- Sebaka sa Maintenance (MD)
Maintenance Domains ke sebaka sa taolo marangrang. Li-MD li hlophisitsoe ka Mabitso le Maemo, moo maemo a robeli a tlohang ho 0 ho ea ho 7. Kamano ea maemo a phahameng e teng pakeng tsa libaka tse thehiloeng ho maemo. Ha domain name e le kholoanyane, boleng ba boemo bo holimo. Maemo a khothaletsoang a maemo a tjena: Sebaka sa Moreki: E kholo ka ho fetesisa (mohlala, 7) Sebaka sa Bafani: Hara (mohlala, 3) Sebaka sa Opereishene: E nyane ka ho fetesisa (mohlala, 1) - Mokhatlo oa Tlhokomelo (MA)
E hlalosoa e le "sehlopha sa li-MEP, tseo kaofela li hlophisitsoeng ka MAID e tšoanang (Identifier Association) le MD Level, e 'ngoe le e' ngoe ea tsona e hlophisitsoeng ka MEPID e ikhethang ka har'a MAID le MD Level, 'me kaofela ha tsona li hlophisitsoe ka lenane le feletseng la MEPID. - Mokhatlo oa Maintenance End Point (MEP)
Lintlha tse qetellong ea sebaka, hlalosa moeli oa sebaka. MEP e romela le ho amohela liforeimi tsa CFM ka ts'ebetso ea relay, e theola liforeimi tsohle tsa CFM tsa boemo ba eona kapa ka tlase tse tsoang lehlakoreng la terata. - Sebaka sa Maintenance Intermediate Point (MIP)
E supa ka hare ho sebaka, eseng moeling. Liforeimi tsa CFM tse amohetsoeng ho tsoa ho MEPs le li-MIP tse ling li thathamisitsoe le ho romelloa, liforeimi tsohle tsa CFM tse maemong a tlase lia emisoa le ho theoa. Li-MIP ke lintlha tse sa sebetseng, li arabela feela ha li hlahisoa ke CFM trace route le melaetsa ea loop-back.
CFM Protocols
Liprothokholo tsa IEEE 802.1ag Ethernet CFM (Connectivity Fault Management) li na le liprothokholo tse tharo. Ke:
- Continuity Check Protocol (CCP)
The Continuity Check Message (CCM) e fana ka mokhoa oa ho bona liphoso tsa khokahano ho MA. Li-CCM ke melaetsa e mengata. Li-CCM li koaletsoe sebakeng sa marang-rang (MD). Melaetsa ena ha e tsoe ka tsela e fapaneng 'me ha e kope karabo. MEP e 'ngoe le e' ngoe e fetisetsa molaetsa oa nako le nako oa "Continuity Check Message" ho ea ho li-MEP tse ling. - Link Trace (LT)
Melaetsa ea Link Trace e tsejoang ka hore ke Mac Trace Route ke liforeimi tse ngata tseo MEP e li fetisang ho latela tsela (hop-by-hop) ho ea sebakeng sa MEP se ts'oanang ka mohopolo le User Da.tagpheleu Protocol (UDP) Trace Route. E mong le e mong ea amohelang MEP o romela Trace Route Reply ka ho toba ho Originating MEP, 'me e tsosolosa Molaetsa oa Trace Route. - Loop-back (LB)
Melaetsa ea Loop-back e tsejoang ka hore ke MAC ping ke liforeimi tsa Unicast tseo MEP e li fetisang, li tšoana ka mohopolo le melaetsa ea Internet Control Message Protocol (ICMP) Echo (Ping), ho romella Loopback ho MIPs tse latellanang ho ka tseba hore na phoso ke efe. Ho romela molumo o phahameng oa Loopback Messages ho ka lekola bandwidth, ho tšepahala, kapa jitter ea ts'ebeletso, e ts'oanang le ping ea likhohola. MEP e ka romella Loopback ho MEP efe kapa efe kapa MIP ts'ebeletso. Ho fapana le li-CCM, melaetsa ea Loop back e qalisoa ka tsamaiso mme e emisoa.
Mefokolo ea ts'ebetsong
Ts'ebetsong ea hajoale ha e tšehetse sebaka sa Maintenance Intermediate Point (MIP), Up-MEP, Link Trace (LT), le Loop-back (LB).
Tlhophiso
Mohlankanaamptlhophiso e felletseng ea CFM e bonts'itsoeng ka tlase:
Tlhophiso ea liparamente tsa lefats'e
Syntax bakeng sa cfm global level cli command ke:
Moo:
Mohlankanaample e bontšitsoe ka tlase:
Tlhophiso ea liparamente tsa Domain
Syntax bakeng sa taelo ea cfm domain CLI ke:
Moo:
ExampLe:
Tlhophiso ea litekanyetso tsa Tšebeletso
Syntax bakeng sa cfm service level cli command ke:
Moo:
ExampLe:
Tlhophiso ea li-parameter tsa MEP
Syntax ea cfm mep level cli command e tjena:
Moo:
ExampLe:
Bontša Boemo
Sebopeho sa taelo ea 'show cfm' CLI se bontšitsoe ka tlase:
Moo:
ExampLe:
Litokomane / Lisebelisoa
 |
Khokahano ea MICROCHIP Tlhophiso ea Tsamaiso ea Phoso [pdf] Bukana ea Mosebelisi Khokahano Tlhophiso ea Tsamaiso ea Phoso, Tsamaiso ea Phoso ea Khokahano, Tlhophiso |
