锟斤拷锟斤拷锟侥讹拷锟斤拷锟斤拷锟斤拷锟斤拷锟接伙拷之ERSPAN锟斤拷前锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟接伙拷之ERSPAN锟斤拷前锟斤拷锟斤拷锟斤拷

2018-06-04 17:51 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟竭ｏ拷锟斤拷锟斤拷锟斤拷锟轿编辑锟斤拷yueyang

锟斤拷锟斤拷锟斤拷PConline 锟缴伙拷锟教★拷时锟斤拷锟筋常锟矫碉拷锟斤拷锟斤拷锟截猴拷锟脚达拷锟斤拷锟竭凤拷SPAN锟斤拷Switch Port Analyzer锟斤拷莫锟斤拷锟剿ｏ拷SPAN也通锟斤拷锟斤拷锟斤拷锟斤拷锟剿口撅拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷路锟侥凤拷式锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷业锟斤拷锟斤拷筛锟斤拷牛锟酵憋拷锟斤拷锟斤拷锟斤拷锟斤拷锟侥革拷锟斤拷锟斤拷锟酵碉拷锟斤拷锟截伙拷远锟剿碉拷锟借备锟较ｏ拷锟斤拷锟斤拷Sniffer锟斤拷IDS锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟酵碉拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷摺锟�

锟斤拷锟斤拷一些锟斤拷锟酵碉拷锟矫凤拷锟叫ｏ拷

锟斤拷锟斤拷•通锟斤拷追锟劫匡拷锟斤拷/锟斤拷锟斤拷帧锟斤拷锟脚筹拷锟斤拷锟斤拷锟斤拷锟解；

锟斤拷锟斤拷•通锟斤拷锟斤拷锟絍oIP锟斤拷锟斤拷锟斤拷锟斤拷锟接迟和讹拷锟斤拷锟斤拷

锟斤拷锟斤拷•通锟斤拷锟斤拷锟斤拷锟斤拷缃伙拷锟斤拷锟斤拷锟斤拷锟绞憋拷樱锟�

锟斤拷锟斤拷•通锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷斐Ｗ刺拷募锟解。

锟斤拷锟斤拷SPAN锟斤拷锟斤拷锟节憋拷锟截诧拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷同一锟斤拷源锟借备锟斤拷锟斤拷锟斤拷锟剿口ｏ拷也锟斤拷锟斤拷远锟教撅拷锟斤拷锟斤拷锟斤拷锟斤拷源锟借备锟斤拷锟斤拷锟斤拷锟节碉拷锟斤拷锟斤拷锟借备锟较ｏ拷RSPAN锟斤拷锟斤拷

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷一锟侥匡拷锟皆匡拷锟斤拷锟斤拷IP锟斤拷锟斤拷锟皆讹拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟截硷拷锟斤拷——ERSPAN锟斤拷Encapsulated Remote Switch Port Analyzer锟斤拷锟斤拷锟斤拷锟斤拷SPAN锟侥伙拷锟斤拷锟斤拷锟斤拷展锟斤拷encapsulated remote锟斤拷锟斤拷锟皆★拷

ERSPAN锟斤拷锟斤拷锟斤拷锟斤拷原锟斤拷

锟斤拷锟斤拷锟斤拷锟饺ｏ拷锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷ERSPAN锟斤拷锟斤拷锟皆ｏ拷

锟斤拷锟斤拷•锟斤拷源锟剿口憋拷锟侥革拷锟斤拷一锟斤拷通锟斤拷GRE锟斤拷Generic Routing Encapsulation锟斤拷锟斤拷锟酵碉拷目锟侥凤拷锟斤拷锟斤拷锟斤拷锟叫斤拷锟斤拷锟斤拷锟缴硷拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷位锟矫诧拷锟斤拷锟斤拷锟狡ｏ拷

锟斤拷锟斤拷•锟斤拷锟斤拷芯片锟斤拷UDF锟斤拷User Defined Field锟斤拷锟斤拷锟皆ｏ拷通锟斤拷专锟揭硷拷锟斤拷展锟叫憋拷锟斤拷锟斤拷Base锟斤拷锟斤拷锟�1~126锟街节碉拷锟斤拷锟斤拷偏锟狡ｏ拷锟皆会话锟截硷拷锟街斤拷锟斤拷匹锟斤拷实锟街会话锟侥匡拷锟接伙拷锟斤拷锟斤拷锟斤拷锟斤拷锟絋CP锟斤拷锟斤拷锟斤拷锟街★拷RDMA锟结话锟侥匡拷锟接ｏ拷

锟斤拷锟斤拷•支锟斤拷锟斤拷锟矫诧拷锟斤拷锟绞ｏ拷

锟斤拷锟斤拷•支锟街憋拷锟侥斤拷取锟斤拷锟饺ｏ拷锟斤拷锟斤拷目锟斤拷锟斤拷锟斤拷锟窖癸拷锟斤拷锟�

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟皆ｏ拷锟斤拷锟脚达拷揖锟街拷锟轿裁碋RSPAN锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷诓锟斤拷锟斤拷锟斤拷锟揭伙拷锟斤拷夭锟斤拷锟斤拷俚墓锟斤拷锟斤拷恕锟�

锟斤拷锟斤拷锟杰斤拷一锟铰ｏ拷ERSPAN锟斤拷要锟斤拷锟斤拷锟矫匡拷锟皆癸拷锟斤拷为锟斤拷锟姐：

锟斤拷锟斤拷•锟结话锟斤拷锟接伙拷锟斤拷锟斤拷锟斤拷ERSPAN锟斤拷锟铰斤拷TCP锟斤拷RDMA锟斤拷Remote Direct Memory Access锟斤拷锟饺碉拷锟斤拷锟叫会话锟斤拷锟缴硷拷锟斤拷锟斤拷朔锟斤拷锟斤拷锟斤拷锟斤拷锟秸故撅拷锟�

锟斤拷锟斤拷•锟斤拷锟斤拷锟斤拷锟较ｏ拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷时锟斤拷去抓取锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟较凤拷锟斤拷锟斤拷

锟斤拷锟斤拷为锟剿达到锟斤拷锟斤拷锟斤拷效锟斤拷锟斤拷源锟斤拷锟斤拷锟借备锟斤拷要锟接猴拷锟斤拷锟斤拷锟斤拷锟斤拷锟叫斤拷锟矫伙拷锟斤拷锟斤拷趣锟斤拷锟斤拷锟斤拷锟斤拷锟剿筹拷锟斤拷锟斤拷锟斤拷锟斤拷一锟捷ｏ拷锟斤拷每锟斤拷锟斤拷锟斤拷帧锟斤拷装锟斤拷一锟斤拷锟斤拷锟斤拷锟�“锟斤拷锟斤拷帧锟斤拷锟斤拷”锟叫ｏ拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟叫拷锟斤拷愎伙拷锟侥革拷锟斤拷锟斤拷息锟斤拷锟皆憋拷锟斤拷锟斤拷锟斤拷确锟斤拷路锟缴碉拷锟斤拷锟斤拷锟借备锟斤拷锟斤拷锟矫斤拷锟斤拷锟借备锟杰癸拷锟斤拷取锟斤拷锟斤拷全锟街革拷原始锟斤拷氐锟斤拷锟斤拷锟斤拷锟�

锟斤拷锟斤拷锟斤拷锟斤拷锟借备锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷一台支锟街斤拷锟阶癊RSPAN锟斤拷锟侥的凤拷锟斤拷锟斤拷锟斤拷

ERSPAN锟斤拷锟斤拷锟酵和凤拷装锟斤拷式锟斤拷锟斤拷

锟斤拷锟斤拷ERSPAN锟侥憋拷锟侥伙拷锟斤拷GRE锟斤拷装锟斤拷锟斤拷通锟斤拷锟斤拷太锟斤拷转锟斤拷锟斤拷锟轿猴拷IP路锟缴可达拷牡胤锟斤拷锟斤拷锟角癊RSPAN锟斤拷要应锟斤拷锟斤拷IPv4锟斤拷锟界，未锟斤拷锟斤拷IPv6锟斤拷支锟斤拷也锟斤拷锟斤拷一锟斤拷锟斤拷锟借。

锟斤拷锟斤拷锟斤拷锟斤拷ERSAPN锟斤拷通锟矫凤拷装锟结构锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷ICMP锟斤拷锟侥的撅拷锟斤拷抓锟斤拷锟斤拷

锟斤拷锟斤拷ERSPAN协锟介经锟斤拷锟斤拷锟节凤拷展锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷强锟轿成讹拷锟斤拷姹撅拷锟斤拷锟轿�"ERSPAN Types”锟斤拷锟斤拷同Type锟斤拷锟叫诧拷同锟斤拷帧头锟斤拷锟斤拷式锟斤拷

锟斤拷锟斤拷锟斤拷ERSPAN头锟斤拷锟侥碉拷一锟斤拷Version锟街讹拷锟斤拷锟斤拷锟斤拷锟斤拷锟藉：

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷GRE头锟斤拷锟叫碉拷Protocol Type锟街讹拷也锟斤拷指锟斤拷锟节诧拷锟斤拷ERSPAN锟斤拷锟酵ｏ拷Protocol Type锟街讹拷值为0x88BE锟斤拷示锟斤拷ERSPAN Type II锟斤拷0x22EB 锟斤拷示锟斤拷ERSPAN Type III锟斤拷

锟斤拷锟斤拷1. Type I

锟斤拷锟斤拷Type I锟斤拷ERSPAN帧直锟接斤拷IP+GRE锟斤拷装锟斤拷原始锟斤拷锟斤拷帧头锟斤拷之锟较ｏ拷锟斤拷锟街凤拷装锟斤拷式锟斤拷原始帧之锟斤拷锟斤拷锟斤拷锟斤拷38锟街节ｏ拷14(MAC) + 20 (IP) + 4(GRE)锟斤拷锟斤拷锟街革拷式锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷头锟斤拷锟竭达拷锟斤拷眨锟斤拷锟斤拷俅锟斤拷锟斤拷锟教的匡拷支锟斤拷锟斤拷锟斤拷为锟戒将 GRE Flag锟斤拷Version锟街讹拷全锟斤拷锟斤拷锟斤拷为0锟斤拷锟斤拷锟斤拷携锟斤拷锟轿猴拷锟斤拷展锟街段ｏ拷也锟斤拷锟斤拷Type I锟斤拷没锟叫达拷锟侥Ｓ︼拷茫锟斤拷锟斤拷锟酵诧拷锟斤拷锟斤拷展锟斤拷锟斤拷

锟斤拷锟斤拷Type I锟斤拷GRE头锟斤拷锟斤拷装锟斤拷式锟斤拷锟铰ｏ拷

锟斤拷锟斤拷2. Type II

锟斤拷锟斤拷锟斤拷Type II锟叫ｏ拷GRE头锟斤拷锟叫碉拷C, R, K, S,s, Recur, Flags, Version锟街段ｏ拷锟斤拷锟斤拷S锟街讹拷为1锟斤拷锟斤拷锟斤拷锟街段斤拷为0锟斤拷锟斤拷锟斤拷Sequence Number锟街段伙拷锟斤拷锟斤拷锟絋ype II锟斤拷GRE头锟斤拷锟叫★拷锟斤拷锟斤拷味锟斤拷Type II锟斤拷锟斤拷确锟斤拷锟斤拷锟斤拷GRE锟斤拷锟侥的达拷锟津，诧拷锟斤拷锟斤拷锟斤拷锟轿拷锟斤拷锟斤拷锟较ｏ拷锟斤拷锟斤拷锟秸碉拷一锟斤拷锟斤拷锟斤拷锟紾RE锟斤拷锟斤拷之锟斤拷锟睫凤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷

锟斤拷锟斤拷Type II锟斤拷GRE头锟斤拷锟斤拷装锟斤拷式锟斤拷锟铰ｏ拷

锟斤拷锟斤拷锟斤拷锟解，ERSPAN Type II锟斤拷帧锟斤拷式锟斤拷锟斤拷锟斤拷锟斤拷8锟街节碉拷ERSPAN头锟斤拷锟斤拷GRE头锟斤拷锟斤拷原始锟斤拷锟斤拷帧之锟戒。

锟斤拷锟斤拷Type II锟斤拷ERSPAN头锟斤拷锟斤拷装锟斤拷式锟斤拷锟铰ｏ拷

锟斤拷锟斤拷锟斤拷螅锟斤拷锟皆硷拷锟斤拷锟街≈拷锟侥ｏ拷锟角憋拷准锟斤拷4锟街节碉拷锟斤拷太锟斤拷循锟斤拷锟斤拷锟斤拷校锟斤拷锟斤拷CRC锟斤拷

锟斤拷锟斤拷值锟斤拷注锟斤拷锟斤拷牵锟斤拷锟绞碉拷锟斤拷校锟斤拷锟斤拷锟街★拷锟矫伙拷邪锟斤拷锟皆贾★拷锟紽CS锟街段ｏ拷锟斤拷为锟斤拷锟斤拷锟斤拷腔锟斤拷锟斤拷锟斤拷锟紼RSPAN锟斤拷锟铰硷拷锟斤拷锟斤拷锟紺RC值锟斤拷锟斤拷锟斤拷味锟脚斤拷锟斤拷锟借备锟睫凤拷锟斤拷锟斤拷原始帧锟斤拷CRC锟斤拷确锟皆ｏ拷锟斤拷锟斤拷只锟杰硷拷锟斤拷锟斤拷锟斤拷锟轿达拷鸹档锟街★拷锟斤拷锟斤拷锟斤拷恕锟�

锟斤拷锟斤拷3. Type III

锟斤拷锟斤拷Type III锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟襟、革拷锟斤拷锟侥革拷锟较憋拷头锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟芥复锟接和讹拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟截筹拷锟斤拷锟斤拷锟斤拷锟斤拷锟揭诧拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷旨锟解、锟斤拷锟杰猴拷锟接迟凤拷锟斤拷锟饺★拷锟斤拷些锟斤拷锟斤拷锟斤拷要知锟斤拷锟斤拷锟斤拷帧锟斤拷锟斤拷锟斤拷原始锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷些锟斤拷锟斤拷锟斤拷锟斤拷原始帧锟斤拷锟斤拷锟斤拷锟斤拷锟捷★拷

锟斤拷锟斤拷ERSPAN Type III锟斤拷锟较憋拷头锟斤拷锟斤拷一锟斤拷强锟狡碉拷12锟街斤拷头锟斤拷锟斤拷一锟斤拷锟斤拷选锟斤拷8锟街斤拷平台锟截讹拷锟斤拷头锟斤拷锟斤拷

锟斤拷锟斤拷Type III锟斤拷ERSPAN头锟斤拷锟斤拷装锟斤拷式锟斤拷锟铰ｏ拷

锟斤拷锟斤拷同锟斤拷锟斤拷锟斤拷原始锟斤拷锟斤拷帧之锟斤拷锟斤拷锟�4锟街节碉拷CRC锟斤拷

锟斤拷锟斤拷锟斤拷Type III锟斤拷头锟斤拷锟斤拷式锟叫匡拷锟皆匡拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷Type II锟侥伙拷锟斤拷锟较憋拷锟斤拷锟斤拷Ver锟斤拷VLAN锟斤拷COS锟斤拷T锟斤拷Session ID锟街讹拷之锟解，锟斤拷锟斤拷锟斤拷锟剿很讹拷锟斤拷锟叫碉拷锟街段ｏ拷锟界：

锟斤拷锟斤拷• BSO锟斤拷锟斤拷锟斤拷锟斤拷示通锟斤拷ERSPAN锟斤拷锟截碉拷锟斤拷锟斤拷帧锟侥革拷锟斤拷锟斤拷锟斤拷锟皆ｏ拷00锟斤拷没锟斤拷锟斤拷锟街★拷锟�11锟斤拷锟斤拷锟斤拷锟斤拷锟街★拷锟�01锟角讹拷帧锟斤拷11锟角筹拷锟斤拷帧锟斤拷

锟斤拷锟斤拷• Timestamp锟斤拷锟斤拷锟斤拷系统时锟斤拷同锟斤拷锟斤拷硬锟斤拷时锟斤拷锟斤拷锟芥导锟斤拷锟斤拷锟斤拷32锟斤拷锟截碉拷锟街讹拷锟斤拷锟斤拷支锟斤拷100微锟斤拷锟绞憋拷锟斤拷锟斤拷锟饺ｏ拷

锟斤拷锟斤拷• P锟斤拷FT锟斤拷Frame Type锟斤拷锟斤拷前锟斤拷锟斤拷锟斤拷指锟斤拷ERSPAN锟斤拷锟截碉拷锟斤拷锟斤拷太锟斤拷协锟斤拷帧锟斤拷PDU帧锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷指锟斤拷锟斤拷锟斤拷太锟斤拷帧锟斤拷锟斤拷IP锟斤拷锟斤拷

锟斤拷锟斤拷• HW ID锟斤拷锟斤拷系统锟斤拷ERSPAN锟斤拷锟斤拷锟轿ㄒ伙拷锟绞讹拷锟斤拷锟�

锟斤拷锟斤拷• Gra (Timestamp Granularity)锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷时锟斤拷锟斤拷目锟斤拷锟斤拷龋锟斤拷锟�00b锟斤拷锟斤拷100微锟斤拷锟斤拷锟饺ｏ拷01b锟斤拷锟斤拷100锟斤拷锟斤拷锟斤拷锟饺ｏ拷10b锟斤拷锟斤拷IEEE 1588锟斤拷锟饺ｏ拷11b锟斤拷锟斤拷要锟斤拷锟狡教拷囟锟斤拷锟酵凤拷锟斤拷锟绞碉拷指锟斤拷呔锟斤拷锟斤拷锟斤拷龋锟�

锟斤拷锟斤拷• Platf ID锟斤拷Platform Specific Info锟斤拷锟斤拷锟斤拷Platf ID锟斤拷同锟斤拷值锟斤拷Platform Specific Info锟街段伙拷锟叫诧拷同锟侥革拷式锟斤拷锟斤拷锟捷★拷

应锟斤拷注锟斤拷锟斤拷牵锟斤拷锟斤拷锟斤拷锟街э拷值母锟斤拷直锟酵凤拷侄慰锟斤拷锟斤拷诔锟斤拷锟斤拷ERSPAN应锟斤拷锟斤拷使锟矫ｏ拷锟斤拷锟斤拷锟斤拷锟皆撅拷锟斤拷锟斤拷锟街★拷锟紹PDU帧锟斤拷锟斤拷锟斤拷锟斤拷原始锟斤拷Trunk锟斤拷装锟斤拷VLAN ID锟斤拷锟斤拷锟解，锟节撅拷锟斤拷帧锟侥癸拷锟斤拷锟叫ｏ拷也锟斤拷锟斤拷锟斤拷每锟斤拷ERSPAN帧锟斤拷锟斤拷锟接关硷拷时锟斤拷锟斤拷锟较拷约锟斤拷锟斤拷锟斤拷锟较拷侄巍锟�

锟斤拷锟斤拷通锟斤拷ERSPAN锟斤拷锟斤拷锟侥革拷锟斤拷锟斤拷锟斤拷头锟斤拷锟斤拷锟斤拷锟角匡拷锟斤拷实锟街革拷为锟斤拷细锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷只锟斤拷要锟斤拷ERSPAN锟斤拷锟斤拷锟叫癸拷锟斤拷锟斤拷应锟斤拷ACL锟斤拷锟斤拷匹锟斤拷锟斤拷锟角革拷锟斤拷趣锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟缴★拷

ERSPAN实锟斤拷RDMA锟结话锟斤拷锟接伙拷

锟斤拷锟斤拷锟斤拷锟角撅拷一锟斤拷RDMA锟斤拷锟斤拷锟斤拷应锟斤拷ERSPAN锟斤拷锟斤拷锟斤拷锟斤到RDMA锟结话锟斤拷锟接伙拷锟侥帮拷锟斤拷锟斤拷

锟斤拷锟斤拷RDMA锟斤拷Remote Direct Memory Access远锟斤拷直锟斤拷锟斤拷锟捷达拷取锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟酵斤拷锟斤拷锟斤拷锟斤拷实锟街凤拷锟斤拷锟斤拷A锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷直锟接讹拷写锟斤拷锟斤拷锟斤拷B锟斤拷锟节存，锟斤拷锟秸达到锟竭达拷锟斤拷锟斤拷锟斤拷锟接迟和碉拷锟斤拷源锟斤拷锟斤拷锟绞碉拷效锟斤拷锟斤拷锟节达拷锟斤拷锟捷和革拷锟斤拷锟杰分诧拷式锟芥储锟斤拷锟斤拷锟斤拷锟叫达拷锟斤拷锟斤拷应锟矫★拷

锟斤拷锟斤拷RoCEv2锟斤拷RDMA over Converged Ethernet Version 2锟斤拷RDMA锟斤拷锟捷凤拷装锟斤拷UDP锟斤拷头锟叫ｏ拷目锟侥端口猴拷为4791锟斤拷UDP锟斤拷头之锟斤拷锟斤拷IB BTH锟斤拷锟斤拷InfiniBand Base Transport Header锟斤拷

锟斤拷锟斤拷RDMA锟秸筹拷锟斤拷维锟斤拷要锟缴硷拷锟杰讹拷锟斤拷锟捷ｏ拷锟斤拷锟斤拷锟秸硷拷锟秸筹拷水位锟斤拷准锟竭猴拷锟届常锟斤拷锟斤拷锟斤拷锟皆硷拷锟斤拷锟斤拷锟届常锟斤拷锟斤拷锟解定位锟斤拷锟捷★拷锟斤拷锟紼RSPAN锟斤拷锟皆匡拷锟斤拷抓取锟斤拷锟斤拷锟斤拷锟捷ｏ拷锟斤拷媒锟斤拷锟叫酒拷锟轿拷爰讹拷锟斤拷转锟斤拷锟斤拷锟斤拷锟斤拷锟捷★拷协锟介交锟斤拷状态锟斤拷锟斤拷通锟斤拷锟斤拷锟斤拷统锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷贸锟絉DMA锟斤拷锟斤拷锟斤拷锟较端碉拷锟剿碉拷转锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷预锟解。

锟斤拷锟斤拷为锟斤拷实锟斤拷RDAM锟结话锟斤拷锟接伙拷锟斤拷锟斤拷锟斤拷锟斤拷要ERSPAN锟节撅拷锟斤拷锟斤拷锟斤拷时锟斤拷锟斤拷RDMA锟斤拷锟斤拷锟结话锟侥关硷拷锟斤拷匹锟戒，锟斤拷时锟斤拷锟斤拷锟斤拷要锟斤拷锟斤拷专锟揭硷拷锟斤拷展锟叫憋拷锟斤拷

锟斤拷锟斤拷专锟揭硷拷锟斤拷展锟叫憋拷匹锟斤拷锟街段讹拷锟藉：

锟斤拷锟斤拷• UDF锟斤拷锟斤拷锟斤拷侄锟斤拷锟缴ｏ拷UDF锟截硷拷锟街★拷base锟斤拷offset锟斤拷value锟斤拷锟絤ask锟斤拷锟斤拷锟斤拷锟斤拷硬锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷前锟斤拷锟斤拷8锟斤拷UDF锟斤拷锟斤拷使锟矫ｏ拷一锟斤拷UDF锟筋长锟斤拷锟斤拷匹锟斤拷锟斤拷锟斤拷锟街节★拷

锟斤拷锟斤拷• UDF锟截硷拷锟街ｏ拷UDF1...UDF8锟斤拷8锟斤拷UDF匹锟斤拷锟斤拷丶锟斤拷锟�

锟斤拷锟斤拷• base锟津：憋拷识UDF匹锟斤拷锟斤拷锟斤拷锟绞嘉伙拷谩锟斤拷锟斤拷锟�

锟斤拷锟斤拷l4_header 锟斤拷锟斤拷锟斤拷RG-S6520-64CQ锟斤拷

锟斤拷锟斤拷l5_header 锟斤拷锟斤拷锟斤拷RG-S6510-48VS8CQ锟斤拷

锟斤拷锟斤拷• offset锟津：伙拷锟斤拷base锟斤拷锟狡拷锟街碉拷锟斤拷锟轿э拷锟�0-126

锟斤拷锟斤拷• value锟斤拷匹锟斤拷值锟斤拷锟斤拷锟斤拷锟斤拷mask锟斤拷锟斤拷锟绞癸拷茫锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟揭ワ拷锟侥撅拷锟斤拷value锟斤拷锟斤拷效位锟斤拷锟斤拷锟街斤拷

锟斤拷锟斤拷• mask锟斤拷锟斤拷锟诫，锟斤拷效位锟斤拷锟斤拷锟街斤拷

锟斤拷锟斤拷锟斤拷锟斤拷锟戒：锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟矫碉拷同一锟斤拷UDF匹锟斤拷锟斤拷幕锟斤拷锟斤拷锟矫碽ase锟斤拷锟給ffset锟斤拷锟斤拷氡ｏ拷锟揭伙拷隆锟斤拷锟�

锟斤拷锟斤拷锟斤拷RDMA锟结话状态锟斤拷氐锟斤拷锟斤拷锟斤拷丶锟斤拷锟斤拷锟斤拷锟紺NP(Congestion Notification Packet)锟斤拷NAK(Negative Acknowledgment)锟斤拷

锟斤拷锟斤拷前锟斤拷锟斤拷RDMA锟斤拷锟秸讹拷锟秸碉拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷Buffer锟斤到锟斤拷值时锟斤拷锟斤拷锟斤拷锟斤拷ECN锟斤拷锟侥猴拷锟斤拷锟缴的ｏ拷锟斤拷锟斤拷锟剿碉拷锟斤拷拥锟斤拷锟斤拷flow锟斤拷QP锟斤拷锟斤拷息锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟节憋拷示RDMA锟斤拷锟斤拷锟叫讹拷锟斤拷锟斤拷锟斤拷应锟斤拷锟侥★拷

锟斤拷锟斤拷锟斤拷锟角斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟阶拷壹锟斤拷锟秸癸拷斜锟斤拷锟狡ワ拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷模锟�

锟斤拷锟斤拷expert access-list extended rdma

锟斤拷锟斤拷 permit udp any any any any eq 4791 udf 1 l4_header 8 0x8100 0xFF00 锟斤拷匹锟斤拷RG-S6520-64CQ锟斤拷

锟斤拷锟斤拷 permit udp any any any any eq 4791 udf 1 l5_header 0 0x8100 0xFF00 锟斤拷匹锟斤拷RG-S6510-48VS8CQ锟斤拷

锟斤拷锟斤拷expert access-list extended rdma

锟斤拷锟斤拷 permit udp any any any any eq 4791 udf 1 l4_header 8 0x1100 0xFF00 udf 2 l4_header 20 0x6000 0xFF00锟斤拷匹锟斤拷RG-S6520-64CQ锟斤拷

锟斤拷锟斤拷 permit udp any any any any eq 4791 udf 1 l5_header 0 0x1100 0xFF00 udf 2 l5_header 12 0x6000 0xFF00锟斤拷匹锟斤拷RG-S6510-48VS8CQ锟斤拷

锟斤拷锟斤拷锟斤拷锟揭伙拷锟斤拷锟斤拷锟斤拷锟阶拷壹锟斤拷锟秸癸拷斜锟斤拷锟斤拷氐锟斤拷锟接RSPAN锟斤拷锟斤拷锟叫ｏ拷锟斤拷锟斤拷实锟斤拷RDMA锟结话锟侥匡拷锟接伙拷锟斤拷

写锟斤拷锟斤拷锟�

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟侥ｏ拷锟斤拷锟斤拷哟锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷娓达拷樱锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟轿拷锟斤拷锟斤拷婢革拷慕锟斤拷欤珽RSPAN锟角必诧拷锟斤拷锟劫的癸拷锟斤拷之一锟斤拷

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷维锟皆讹拷锟斤拷锟教讹拷越锟斤拷越锟竭ｏ拷Netconf锟斤拷RESTconf锟斤拷gRPC锟饺硷拷锟斤拷锟斤拷锟斤拷锟斤拷锟皆讹拷锟斤拷锟斤拷维锟斤拷锟杰碉拷锟斤拷锟斤拷锟轿э拷幕锟接拷锟斤拷锟斤拷锟絞RPC锟斤拷锟斤拷为锟斤拷锟斤拷锟斤拷锟斤拷锟截达拷锟侥底诧拷协锟斤拷也锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷啤锟斤拷纾猴拷锟斤拷锟紿TTP/2协锟介，锟斤拷锟斤拷支锟斤拷同一锟斤拷锟斤拷锟铰达拷锟斤拷锟斤拷锟酵伙拷锟狡ｏ拷使锟斤拷ProtoBuf锟斤拷锟诫，锟斤拷JSON锟斤拷式锟斤拷锟斤拷息锟斤拷小锟斤拷锟斤拷锟斤拷一锟诫，锟斤拷锟斤拷使锟斤拷锟捷达拷锟斤拷锟斤拷涌锟捷和革拷效锟斤拷锟斤拷锟斤拷一锟铰ｏ拷锟斤拷锟斤拷锟斤拷锟紼RSPAN锟皆革拷锟斤拷趣锟斤拷锟斤拷锟斤拷之锟斤拷锟斤拷锟斤拷锟斤拷gRPC锟斤拷锟酵碉拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟角诧拷锟角就会极锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷远锟斤拷锟斤拷锟轿拷锟斤拷锟斤拷锟斤拷锟叫э拷锟斤拷兀锟�

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟�25G/100G锟斤拷锟斤拷锟斤拷锟侥碉拷锟铰诧拷品RG-S6510-48VS8CQ锟斤拷RG-S6520-64CQ锟斤拷锟斤拷锟剿匡拷锟斤拷锟斤拷锟斤拷RDMA锟斤拷锟斤拷锟叫讹拷PFC+ECN+MMU锟侥癸拷锟斤拷锟斤拷锟杰憋拷锟街较高碉拷协锟斤拷锟皆ｏ拷锟斤拷锟斤拷锟皆诧拷锟斤拷RDMA锟斤拷锟斤拷锟侥匡拷锟接伙拷锟斤拷锟斤拷锟斤拷支锟斤拷锟斤拷锟斤拷ERSPAN锟斤拷锟斤拷匹锟斤拷专锟揭硷拷锟斤拷展锟叫憋拷锟斤拷RDMA锟结话锟斤拷锟叫匡拷锟接伙拷展示锟斤拷

锟斤拷锟斤拷锟斤拷谢锟斤拷锟斤拷注锟斤拷锟斤拷锟斤拷缂硷拷锟斤拷苫锟斤拷锟斤拷拢锟斤拷殖锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷薪锟斤拷锟斤拷校锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷徒锟斤拷榻拷锟斤拷锟斤拷锟斤拷锟斤拷诩锟斤拷锟教斤拷锟斤拷锟斤拷锟斤拷锟较筹拷锟斤拷锟斤拷锟斤拷锟斤拷

锟斤拷锟斤拷锟斤拷锟斤拷路锟�“锟斤拷锟斤拷”锟斤拷扫锟斤拷锟轿拷锟斤拷锟斤拷锟斤拷小锟斤拷锟�👇

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