intel FPGA Programmable Acceleration Card N3000 Guide User

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Kaadị ngwa ngwa ngwa ngwa nke Intel FPGA N3000 na netwọọdụ ohere redio nke ọma (vRAN) chọrọ nkwado maka IEEE1588v2 dị ka Usoro oge nkenke oge (PTP) Telecom Slave Clocks (T-TSC) iji hazie ọrụ ngwanrọ nke ọma. Onye njikwa Intel Ethernet XL710 dị na Intel® FPGA PAC N3000 na-enye nkwado IEEE1588v2. Agbanyeghị, ụzọ data FPGA na-ewebata jitter nke na-emetụta arụmọrụ PTP. Ịtinye sekit transperent (T-TC) na-enyere ndị Intel FPGA PAC N3000 aka ịkwụ ụgwọ maka nkwụsị nke ime FPGA ya ma na-ebelata mmetụta nke jitter, nke na-enye ohere T-TSC iji tụọ oge nke Grandmaster's Time of Day (ToD) nke ọma.

Ebumnuche

Nnwale ndị a kwadoro iji Intel FPGA PAC N3000 dị ka ohu IEEE1588v2 na Open Radio Access Network (O-RAN). Akwụkwọ a na-akọwa:

• Nhazi nwale
• Usoro nkwenye
• Ntụle arụmọrụ nke usoro elekere transperent na ụzọ FPGA nke Intel FPGA PAC N3000
• Ọrụ PTP nke Intel FPGA PAC N3000 arụmọrụ nke Intel FPGA PAC N3000 na-akwado elekere anya bụ.
  ma e jiri ya tụnyere Intel FPGA PAC N3000 na-enweghị elekere anya yana yana kaadị Ethernet ọzọ XXV710 n'okpuru ọnọdụ okporo ụzọ dị iche iche na nhazi PTP.

Atụmatụ na oke

Atụmatụ na mmachi nkwado maka Intel FPGA PAC N3000 IEEE1588v2 nkwado bụ ndị a:

• A na-eji ngwugwu ngwanrọ: Linux PTP Project (PTP4l)
• Na-akwado pro telecom ndị afiles:
  •  1588v2 (nke ndabara)
  • G.8265.1
  • G.8275.1
• Na-akwado elekere ohu PTP nzọụkwụ abụọ.

Ụlọ ọrụ Intel. Ikike niile echekwabara. Intel, akara Intel, na akara Intel ndị ọzọ bụ ụghalaahịa nke Intel Corporation ma ọ bụ ndị enyemaka ya. Intel nyere ikike ịrụ ọrụ nke FPGA na ngwaahịa semiconductor na nkọwapụta ugbu a dịka akwụkwọ ikike ọkọlọtọ Intel siri dị, mana nwere ikike ịme mgbanwe na ngwaahịa na ọrụ ọ bụla n'oge ọ bụla na-enweghị ọkwa. Intel anaghị ewere ọrụ ọ bụla ma ọ bụ ụgwọ sitere na ngwa ma ọ bụ iji ozi ọ bụla, ngwaahịa ma ọ bụ ọrụ akọwara n'ime ebe a belụsọ dị ka Intel kwetara na ederede. A dụrụ ndị ahịa Intel ọdụ ka ha nweta ụdị nkọwa ngwaọrụ kachasị ọhụrụ tupu ha adabere na ozi ọ bụla ebipụtara yana tupu ịnye iwu maka ngwaahịa ma ọ bụ ọrụ. * Enwere ike ịzọrọ aha na akara ndị ọzọ dị ka ihe onwunwe nke ndị ọzọ.

• Na-akwado ọnọdụ multicast ngwụcha ruo ọgwụgwụ.
• Na-akwado ugboro mgbanwe ozi PTP ruru 128 Hz.
  • Nke a bụ mmachi nke atụmatụ nkwado yana Grandmaster were were. Nhazi PTP dị elu karịa ngwugwu 128 kwa sekọnd maka ozi PTP nwere ike ikwe omume.
• N'ihi oke nke Cisco* Nexus* 93180YC-FX mgba ọkụ ejiri na ntọala nkwado, nsonaazụ arụmọrụ n'okpuru ọnọdụ okporo ụzọ iperf3 na-ezo aka na ọnụego mgbanwe ozi PTP nke 8 Hz.
• Nkwado encapsulation:
  • Ụgbọ njem n'elu L2 (raw Ethernet) na L3 (UDP/IPv4/IPv6)
    Mara: N'ime akwụkwọ a, nsonaazụ niile na-eji otu njikọ Ethernet 25Gbps.

Ngwa na ụdị ọkwọ ụgbọ ala

Ngwa	Ụdị
BIOS	Ụlọ ọrụ nkesa Intel S2600WF 00.01.0013
OS	CentOS 7.6
Kernel	kernel-rt-3.10.0-693.2.2.rt56.623.el7.src.
Ngwa mmepe ụgbọ elu data (DPDK)	18.08
Intel C Compiler	19.0.3
Intel XL710 ọkwọ ụgbọ ala (ọkwọ ụgbọala i40e)	2.8.432.9.21
PTP4l	2.0
IxExplorer	8.51.1800.7 EA-Patch1
lp3	3.0.11
trafgen	Ngwa Netsniff-ng 0.6.6

 Nnwale okporo ụzọ IXIA

Ntọala izizi PTP arụmọrụ maka Intel FPGA PAC N3000 na-eji IXIA * ngwọta maka netwọọdụ na nnwale nnabata PTP. Igbe chassis IXIA XGS2 gụnyere kaadị IXIA 40 PORT NOVUS-R100GE8Q28 na IxExplorer nke na-enye interface eserese maka ịtọlite ​​​​PTP Grandmaster mebere na DUT (Intel FPGA PAC N3000) karịa otu 25 Gbps njikọ Ethernet kpọmkwem. Eserese ngọngọ nke dị n'okpuru na-egosi topology ule ezubere iche maka akara ndị dabere na IXIA. Nsonaazụ niile na-eji okporo ụzọ emepụtara IXIA maka ule ingress okporo ụzọ wee jiri ngwa trafgen na Intel FPGA PAC N3000 onye ọbịa maka nnwale okporo ụzọ egress, ebe ntinye ma ọ bụ ntụzịaka egress na-esite n'echiche nke DUT (Intel FPGA PAC N3000). ) onye ọbịa. N'okwu abụọ a, nkezi ọnụego okporo ụzọ bụ 24 Gbps. Ntọlite ​​ule a na-enye njirimara ntọala nke arụmọrụ PTP nke Intel FPGA PAC N3000 na-arụ ọrụ T-TC, yana iji ya tụnyere ihe oyiyi ụlọ ọrụ na-abụghị TC Intel FPGA PAC N3000 n'okpuru ITU-T G.8275.1 PTP pro.file.

Topology maka Nnwale okporo ụzọ Intel FPGA PAC N3000 n'okpuru IXIA Virtual Grandmaster

Nsonaazụ ule okporo ụzọ IXIA

Nyocha na-esote na-ejide arụmọrụ PTP nke Intel FPGA PAC N3000 na-enyere TC aka n'okpuru ọnọdụ ingress na egress. Na ngalaba a, PTP profile A nakweere G.8275.1 maka ule okporo ụzọ na nchịkọta data niile.

Ogo nke Master Offset

Ọnụọgụ na-esote na-egosi ịdị ukwuu nke nnabata nna ukwu nke onye ahịa ohu PTP4l nke Intel FPGA PAC N3000 ọbịa hụrụ dị ka ọrụ nke gafere oge n'okpuru ingress, egress na bidirectional okporo ụzọ (nkezi ntinye nke 24.4Gbps).

Ogologo oge n'ụzọ pụtara (MPD)

Ọnụ ọgụgụ na-esonụ na-egosi nkwụsịtụ ụzọ, dị ka agbakọ nke ohu PTP4 nke na-eji Intel FPGA PAC N3000 dị ka kaadị interface netwọk, maka otu ule dị ka ọnụ ọgụgụ dị n'elu. Ngụkọta oge nke ọ bụla n'ime ule okporo ụzọ atọ bụ opekata mpe awa iri na isii.

Tebụl na-esonụ na-edepụta nyocha ndekọ ọnụ ọgụgụ nke ule okporo ụzọ atọ. N'okpuru ibu okporo ụzọ dị nso na ikike ọwa ahụ, ohu PTP4l nke na-eji Intel FPGA PAC N3000 na-ejigide usoro ya na nnukwu nna ukwu nke IXIA n'ime 53 ns maka ule okporo ụzọ niile. Na mgbakwunye, ọkọlọtọ ọkọlọtọ nke nna ukwu offset ịdị n'okpuru 5 ns.

Nkọwa ndekọ ọnụ ọgụgụ na arụmọrụ PTP

G.8275.1 PTP Profile	Okporo ụzọ mbata (24Gbps)	Okporo ụzọ Egress (24Gbps)	Okporo ụzọ bidirectional (24Gbps)
RMS	6.35 ns	8.4 ns	9.2 ns
StdDev (nke abs(max) akwụ ụgwọ)	3.68 ns	3.78 ns	4.5 ns
StdDev (nke MPD)	1.78 ns	2.1 ns	2.38 ns
Nke kacha akwụ ụgwọ	36 ns	33 ns	53 ns

 

Ọnụọgụ ndị a na-anọchi anya ịdị ukwuu nke nkwụghachi ụgwọ nna ukwu yana igbu oge ụzọ (MPD), n'okpuru ule okporo ụzọ bidirectional 16 Gbps dị ogologo awa 24 maka mkpuchi PTP dị iche iche. Eserese aka ekpe dị na ọnụọgụ ndị a na-ezo aka na akara ngosi PTP n'okpuru mkpuchi IPV4/UDP, ebe ntinye ozi PTP nke eserese aka nri dị na L2 (raw Ethernet). Arụ ọrụ ohu PTP4l yiri nke ahụ, ọkaibe nke nna ukwu kacha njọ bụ 53 ns na 45 ns maka IPV4/UDP na L2 encapsulation, n'otu n'otu. Ọkọlọtọ ngbanwe nke oke nkwụghachi bụ 4.49 ns na 4.55 ns maka IPV4/UDP na L2 encapsulation, n'otu n'otu.

Ogo nke Master Offset

Ọnụọgụ na-esote na-egosi ịdị ukwuu nke nkwụghachi ụgwọ nna ukwu n'okpuru okporo ụzọ bidirectional 24 Gbps, IPv4 (aka ekpe) na L2 (n'aka nri) encapsulation, G8275.1 Profile.

Ogologo oge n'ụzọ pụtara (MPD)

Ọnụ ọgụgụ na-esonụ na-egosi nkwụsịtụ ụzọ nke Intel FPGA PAC N3000 onye ọbịa PTP4l ohu n'okpuru 24 Gbps okporo ụzọ bidirectional, IPv4 (aka ekpe) na L2 (n'aka nri) encapsulation, G8275.1 Profile.

Ụkpụrụ zuru oke nke MPD abụghị ihe ngosi doro anya nke nkwụsi ike nke PTP, ebe ọ na-adabere na ogologo eriri ogologo, nkwụsị data ụzọ na ihe ndị ọzọ; Otú ọ dị, ileba anya n'ụdị MPD dị ala (2.381 ns na 2.377 ns maka ikpe IPv4 na L2, n'otu n'otu) na-eme ka ọ pụta ìhè na ngụkọ PTP MPD bụ ihe ziri ezi mgbe niile n'ofe abụọ encapsulations. Ọ na-achọpụta nkwụsi ike nke arụmọrụ PTP n'ofe ma ụdị mkpuchi ahụ. Mgbanwe ọkwa dị na MPD gbakọọ na eserese L2 (na eserese dị n'elu, eserese aka nri) bụ n'ihi mmụba nke okporo ụzọ etinyere. Nke mbụ, ọwa ahụ adịghị arụ ọrụ (MPD rms bụ 55.3 ns), wee tinye okporo ụzọ ingress (nzọụkwụ nke abụọ, MPD rms bụ 85.44 ns), na-esote okporo ụzọ egress n'otu oge, na-ebute MPD gbakọọ nke 108.98 ns. Ọnụọgụ ndị a na-ekpuchi ịdị ukwuu nke onye nwe ya na MPD gbakọọ nke ule okporo ụzọ bidirectional etinyere ma ohu PTP4l na-eji Intel FPGA PAC N3000 nwere usoro T-TC, yana onye ọzọ na-eji Intel FPGA PACN3000 na-enweghị TC. arụmọrụ. Nnwale T-TC Intel FPGA PAC N3000 (oroma) na-amalite site na efu oge, ebe ule PTP na-eji ihe na-abụghị TC Intel FPGA PAC N3000 (acha anụnụ anụnụ) na-amalite gburugburu T = 2300 sekọnd.

Ogo nke Master Offset

Ọnụ ọgụgụ na-esonụ na-egosi ịdị ukwuu nke master offset n'okpuru okporo ụzọ Ingress (24 Gbps), na-enweghị nkwado TTC, G.8275.1 Profile.

N'ọnụọgụ dị n'elu, arụmọrụ PTP nke TC-enabled Intel FPGA PAC N3000 n'okpuru okporo ụzọ yiri nke na-abụghị TC Intel FPGA PAC N3000 maka sekọnd 2300 mbụ. A na-egosipụta ịdị irè nke usoro T-TC na Intel FPGA PAC N3000 na akụkụ nke ule (mgbe 2300th nke abụọ gasịrị) ebe a na-etinye ibu okporo ụzọ nha anya na oghere nke kaadị abụọ ahụ. N'otu aka ahụ na ọnụ ọgụgụ dị n'okpuru ebe a, a na-ahụ ngụkọta MPD tupu na mgbe etinyere okporo ụzọ na ọwa. A na-egosipụta ịdị irè nke usoro T-TC n'ịkwụ ụgwọ maka oge obibi nke ngwugwu nke bụ nkwụsị nke ngwugwu site na ụzọ FPGA n'etiti 25G na 40G MAC.

Ogologo oge n'ụzọ pụtara (MPD)

Ọnụ ọgụgụ na-esonụ na-egosi nkwụsịtụ ụzọ nke Intel FPGA PAC N3000 onye ọbịa PTP4l ohu n'okpuru okporo ụzọ Ingress (24 Gbps), na-enweghị nkwado T-TC, G.8275.1 Profile.

Ọnụọgụ ndị a na-egosi servo algọridim nke PTP4l ohu, n'ihi nzizi oge obibi nke TC, anyị na-ahụ obere ọdịiche dị na ngụkọta oge igbu oge. Ya mere, mmetụta nke mgbanwe igbu oge na nna ukwu offset approximation na-ebelata. Tebụl na-esonụ depụtara nyocha ndekọ ọnụ ọgụgụ na arụmọrụ PTP, nke gụnyere RMS na ngbanwe ọkọlọtọ nke nna ukwu, ngbanwe ọkọlọtọ nke igbu oge n'ụzọ, yana ihe nkwụghachi ụgwọ kacha njọ maka Intel FPGA PAC N3000 na enweghị T- TC nkwado.

Nkọwa ndekọ ọnụ ọgụgụ na arụmọrụ PTP n'okpuru okporo ụzọ mbata

Okporo ụzọ Ingress (24Gbps) G.8275.1 PTP Profile	Intel FPGA PAC N3000 nwere T-TC	Intel FPGA PAC N3000 enweghị T-TC
RMS	6.34 ns	40.5 ns
StdDev (nke abs(max) akwụ ụgwọ)	3.65 ns	15.5 ns
StdDev (nke MPD)	1.79 ns	18.1 ns
Nke kacha akwụ ụgwọ	34 ns	143 ns

Ntụnyere ozugbo TC FPGA PAC N3000 na-akwado TC na ụdị na-abụghị TC
Na-egosi na arụmọrụ PTP dị 4x ruo 6x dị ala n'ihe gbasara ọnụọgụgụ ọ bụla
metrik (kacha njọ, RMS ma ọ bụ ụkpụrụ nke nkwụghachi ụgwọ nke nna ukwu). Nke kacha njọ - ikpe
master offset maka G.8275.1 PTP nhazi nke T-TC Intel FPGA PAC N3000 bụ 34
ns n'okpuru ọnọdụ okporo ụzọ ingress na njedebe nke bandwidth ọwa (24.4Gbps).

Nnwale okporo ụzọ lperf3

Akụkụ a na-akọwa ule benchmarking okporo ụzọ iperf3 iji tụlekwuo arụmọrụ PTP nke Intel FPGA PAC N3000. Ejirila ngwaọrụ iperf3 iji ṅomie ọnọdụ okporo ụzọ na-arụ ọrụ. Topology netwọkụ nke akara okporo ụzọ iperf3, nke egosiri na foto dị n'okpuru, gụnyere njikọ nke sava abụọ, nke ọ bụla na-eji kaadị DUT (Intel FPGA PAC N3000 na XXV710), gaa na Cisco Nexus 93180YC FX mgba ọkụ. Ihe ntụgharị Cisco na-arụ ọrụ dị ka elekere Boundary (T-BC) n'etiti ndị ohu DUT PTP abụọ na Calnex Paragon-NEO Grandmaster.

Netwọk Topology maka Intel FPGA PAC N3000 lprf3 Ule okporo ụzọ

Mmepụta PTP4l na nke ọ bụla n'ime ndị ọbịa DUT na-enye nha data nke arụmọrụ PTP maka ngwaọrụ ohu ọ bụla na ntọala (Intel FPGA PAC N3000 na XXV710). Maka ule okporo ụzọ iperf3, ọnọdụ na nhazi ndị a na-emetụta eserese na nyocha arụmọrụ niile:

• 17 Gbps gbakọtara bandwidth nke okporo ụzọ (ma TCP na UDP), ma ọ bụ egress ma ọ bụ ntinye ma ọ bụ bidirectional na Intel FPGA PAC N3000.
• IPV4 mkpuchi nke ngwugwu PTP, n'ihi mmachi nhazi na Cisco Nexus 93180YC-FX mgba ọkụ.
• Ọnụego mgbanwe ozi PTP nwere oke na ngwugwu 8/sekọnd, n'ihi mmachi nhazi na Cisco Nexus 93180YC-FX mgba ọkụ.

perf3 Nsonaazụ ule okporo ụzọ

Nyocha na-esote na-ejide arụmọrụ nke Intel FPGA PAC N3000 na kaadị XXV710, ha abụọ na-arụ ọrụ n'otu oge dị ka kaadị interface netwọk nke ndị ohu PTP (T-TSC) Calnex Paragon NEO Grandmaster site na T-BC Cisco mgba ọkụ.

Ọnụọgụ ndị a na-egosi ịdị ukwuu nke master offset na MPD ka oge na-aga maka ule okporo ụzọ atọ dị iche iche site na iji Intel FPGA PAC N3000 nwere kaadị T-TC na XXV710. Na kaadị abụọ ahụ, okporo ụzọ bidirectional nwere mmetụta kachasị na arụmọrụ PTP4l. Ogologo oge ule okporo ụzọ dị awa 10. N'ọnụọgụ ndị a, ọdụ graph na-aka akara n'oge ebe okporo ụzọ na-akwụsị na ịdị ukwuu nke PTP master offset na-agbada n'ọkwa ya dị ala, n'ihi ọwa adịghị arụ ọrụ.

Ogo nke Master Offset maka Intel FPGA PAC N3000

Ọnụọgụ na-esote na-egosi ogologo oge igbu oge maka Intel FPGA PAC N3000 na T TC, n'okpuru ntinye, egress na okporo ụzọ iperf3 bidirectional.

Oge igbu oge pụtara (MPD) maka Intel FPGA PAC N3000

Ọnụọgụ na-esote na-egosi ogologo oge igbu oge maka Intel FPGA PAC N3000 na T TC, n'okpuru ntinye, egress na okporo ụzọ iperf3 bidirectional.

Ogo nke Master Offset maka XXV710

Ọnụọgụ na-esonụ na-egosi ịdị ukwuu nke nna ukwu offset maka XXV710, n'okpuru ingress, egress na bidirectional iperf3 okporo ụzọ.

Oge igbu oge n'ụzọ pụtara (MPD) maka XXV710

Ọnụọgụ na-esonụ na-egosi nkwụsịtụ ụzọ maka XXV710, n'okpuru ntinye, egress na bidirectional iperf3.

Banyere arụmọrụ Intel FPGA PAC N3000 PTP, nkwụghachi ụgwọ kacha njọ n'okpuru ọnọdụ okporo ụzọ ọ bụla dị n'ime 90 ns. Mgbe n'okpuru otu ọnọdụ okporo ụzọ bidirectional, RMS nke Intel FPGA PAC N3000 master offset bụ 5.6x dị mma karịa nke kaadị XXV710.

	Intel FPGA PAC N3000			Kaadị XXV710
	Okporo ụzọ mbata10G	Okporo ụzọ Egress 18G	Okporo ụzọ bidirectional18G	Okporo ụzọ mbata18G	Okporo ụzọ Egress 10G	Okporo ụzọ bidirectional18G
RMS	27.6 ns	14.2 ns	27.2 ns	93.96 ns	164.2 ns	154.7 ns
StdDev (nke abs (max) akwụ ụgwọ)	9.8 ns	8.7 ns	14.6 ns	61.2 ns	123.8 ns	100 ns
StdDev (nke MPD)	21.6 ns	9.2 ns	20.6 ns	55.58 ns	55.3 ns	75.9 ns
Nke kacha akwụ ụgwọ	84 ns	62 ns	90 ns	474 ns	1,106 ns	958 ns

N'ụzọ doro anya, ihe nrụpụta nke Intel FPGA PAC N3000 nwere ụkpụrụ dị ala,
opekata mpe, 5x na-erughị kaadị XXV710, na-egosi na nchikota PTP nke
Elekere Grandmaster adịghị enwe mmetụta maka nkwụsịtụ ma ọ bụ mkpọtụ mgbanwe n'okpuru okporo ụzọ na
Intel FPGA PAC N3000.
Ọ bụrụ na atụnyere nsonaazụ IXIA okporo ụzọ na ibe 5, oke kachasị njọ nke
Ntugharị nna ukwu na T-TC nyere Intel FPGA PAC N3000 pụtara elu. E wezụga
ọdịiche dị na topology netwọkụ na bandwidth ọwa, nke a bụ n'ihi Intel
FPGA PAC N3000 na-ejide n'okpuru G.8275.1 PTP profile (ọnụego mmekọrịta 16 Hz), mgbe
A na-amachibido ọnụego ozi mmekọrịta na nke a na ngwugwu 8 kwa sekọnd.

Ntụnyere ntule nke Master Offset

Ọnụọgụ na-esonụ na-egosi ịdị ukwuu nke ntụnyere onye isi n'okpuru okporo ụzọ iperf3.

Ntụle oge igbu oge n'ụzọ pụtara (MPD).

Ọnụọgụ na-esonụ na-egosi ntụnyere igbu oge ụzọ n'okpuru okporo ụzọ iperf3.

Arụmọrụ PTP dị elu nke Intel FPGA PAC N3000, ma e jiri ya tụnyere kaadị XXV710, na-akwadokwa ya site na nhụsianya dị elu nke oge gbakọọ oge igbu oge (MPD) maka XXV710 na Intel FPGA PAC N3000 na nke ọ bụla n'ime ule okporo ụzọ ezubere iche, maka example bidirectional iperf3 okporo ụzọ. Na-eleghara uru pụtara n'ọnọdụ MPD ọ bụla, nke nwere ike ịdị iche n'ihi ọtụtụ ihe kpatara ya, dị ka eriri Ethernet dị iche iche na nkwụsị isi dị iche iche. Ọdịiche a hụrụ na steepụ na ụkpụrụ maka kaadị XXV710 adịghị na Intel FPGA PAC N3000.

RMS nke 8 na-esochi Master Offset Comparision

Mmechi

Ụzọ data FPGA dị n'etiti QSFP28 (25G MAC) na Intel XL710 (40G MAC) na-agbakwụnye nkwụsịtụ ngwungwu mgbanwe nke na-emetụta nha anya nke ọma nke PTP Slave. Ịgbakwunye nkwado elekere Transparent (T-TC) na mgbagha dị nro nke FPGA nke Intel FPGA PAC N3000 na-enye nkwụghachi ụgwọ nke ngwugwu a site na itinye oge obibi ya na mpaghara mgbazi nke ozi PTP. Nsonaazụ na-akwado na usoro T-TC na-eme ka arụmọrụ nke ohu PTP4l dịkwuo mma.

Ọzọkwa, IXIA Traffic Test Result na ibe 5 na-egosi na nkwado T-TC na ụzọ data FPGA na-eme ka arụmọrụ PTP dịkwuo ma ọ dịkarịa ala 4x, ma e jiri ya tụnyere Intel FPGA PAC N3000 na-enweghị nkwado T-TC. Intel FPGA PAC N3000 nwere T-TC na-enye nnukwu ụgwọ ọrụ kacha njọ nke 53 ns n'okpuru ingress, egress ma ọ bụ ibu okporo ụzọ bidirectional na njedebe nke ikike ọwa (25 Gbps). N'ihi ya, site na nkwado T-TC, arụmọrụ Intel FPGA PAC N3000 PTP bụ nke ziri ezi ma na-adịkarị mfe maka mgbanwe mkpọtụ.

N'ime ule okporo ụzọ lperf3 na ibe 10, a na-atụnyere arụmọrụ PTP nke Intel FPGA PAC N3000 nwere T-TC na kaadị XXV710. Nnwale a weghaara data PTP4l maka elekere ohu abụọ n'okpuru ingress ma ọ bụ okporo ụzọ egress nke gbanwere n'etiti ndị ọbịa abụọ nke Intel FPGA PAC N3000 na kaadị XXV710. Ihe nkwụghachi ụgwọ kacha njọ a hụrụ na Intel FPGA PAC N3000 dị opekata mpe 5x dị ala karịa kaadị XXV710. Ọzọkwa, ọkọlọtọ ndahie nke ejidere offset na-egosikwa na T-TC nkwado nke Intel FPGA PAC N3000 na-enye ohere smoother approximation nke Grandmaster's elekere.

Iji nwetakwuo arụmọrụ PTP nke Intel FPGA PAC N3000, nhọrọ nnwale nwere ike gụnyere:

• Nkwado n'okpuru PTP pro dị iche ichefiles na ọnụego ozi maka njikọ Ethernet karịrị otu.
• Nlele ule okporo ụzọ lperf3 na ibe 10 nwere mgbanwe dị elu karịa nke na-enye ohere ozi PTP dị elu.
• Ntụle nke ọrụ T-SC na oge PTP ya ziri ezi n'okpuru G.8273.2 Nnwale Nkwekọrịta.

Akụkọ ndozigharị akwụkwọ maka ule IEEE 1588 V2

 

Akwụkwọ Ụdị	Mgbanwe
2020.05.30	Ntọhapụ mbụ.

 

Akwụkwọ / akụrụngwa

intel FPGA Programmable Acceleration Card N3000 [pdf] Ntuziaka onye ọrụ FPGA Programmable Acceleration Card, N3000, Programmable Acceleration Card N3000, FPGA Programmable Acceleration Card N3000, FPGA, IEEE 1588 V2 Test

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