¦æ¬F°|°ê®a¬ì¾Ç©e­û·|±MÃD¬ã¨s­pµe¦¨ªG³ø§i

°ê®a¹êÅçºô¸ôGigaPopºû¹B­pµe-¤l­pµe¤E

¤¤¤s¤j¾Ç°ê®a¹êÅçºô¸ôNBENºû¹B­pµe

NBEN GigaPop Maintenance and Operation-Subproject 9

­pµe½s¸¹¡GNSC 91-2219-E-110-001

°õ¦æ´Á­­¡G91¦~1¤ë1¤é¦Ü91¦~12¤ë31¤é

¥D«ù¤H¡G³\»aÀ­    °ê¥ß¤¤¤s¤j¾Ç¹q¾÷¤uµ{¾Ç¨t

E-mail¡Gsheu@ee.nsysu.edu.tw

 


¤@¡BºK­n

MPLS (Multiprotocol Label Switching) ¨Ï¥Î»PATM¥æ´«§Þ³NÃþ¦üªº¼ÐÅҥ洫(Label Switching)§Þ³N¡A¨Ó´£ª@routerªº¶Ç°e®Ä²v¡C¨Ã¨ã³Æ°T°È¤À¯Å¡A¶Ç°e«~½è«OÃÒµ¥¶Ç²Îºô¸ô©Ò¨S¦³ªº¥\¯à¡A¨Ï±oMPLS¦¨¬°¥Ø«eºô¸ô¥@¬É¤¤³Ì¨üÆf¥Øªº§Þ³N¡C·~¬Éª§¬Û§ë¤J¶}µoMPLS¬ÛÃö²£«~¡A¾Ç³N¬É¤]¦³³\¦h¤H¿n·¥ªº¬ã¨s§ï¶iMPLS¡C¦b³o¥÷³ø§i¤¤¡A§Ú­Ì±N§Ú­Ì°w¹ïMPLSªº°ò¥»¥\¯à¡A¦pbandwidth reservation¡ALSP reroute ¤Îpreemption¡Aµ¥³v¤@ÅçÃÒ²{¦³ªº²£«~¬O§_¨ã¦³³o¨Ç¥\¯à¡C

 

ÃöÁäµü¡GMPLS¡BClass of Service¡Bbandwidth reservation¡Breroute¡Bpreemption

 

¤G¡B¢Û¢Þ¢Ú¢á¥\¯à´ú¸Õ

­º¥ý§Ú­Ì§Ú­Ì°w¹ïMPLS©Ò´£¨Ñªº¥\¯à§@¨Ó°µÅçÃÒ¡C

 

2.1 Bandwidth Reservation

Fig 2.1  Bandwidth reservation´ú¸Õ¬[ºc¹Ï

¦b³o­Ó¹êÅ礤¡A§Ú­Ì±N´ú¸Õ¥ÑRSVP signaling©Ò«Ø¥ßªº LSP¬O§_¨ã¦³ÀW¼e¹w¯d¥\¯à¡Cºô¸ô¬[ºc¦p¹Ï2.1©Ò¥Ü¡ANSYSU M5»PNSYSU M5-2¥Hfast Ethernet³s±µ¡A¨Ã«Ø¥ß1±øÀW¼e¹w¯d70MbpsªºLSP¡C

¡@¡@¥Ñ©óbandwidth reservation¥\¯à¡A¥²¶·¦bºô¸ô¾ÖÀ½ªºª¬ªp¤U¡A¤~¯àÅã²{¨ä®ÄªG¡C¦]¦¹§Ú­Ì¨Ï¥ÎIP Traffic³o­Ó³nÅ骺packet generator¡A¨Ó²£¥Í¤j¶qªºbackground traffic¡C¦]¦¹¹êÅ礤Á`¦@·|¶Ç°e2­Ótraffic flow¡A¨ä¤¤FTP traffic 1«h¬O§Q¥ÎFTP protocol¨Ó¶Ç°eÀɮסA¸g¥ÑLSP¶Ç°e¡CBackground traffic«h¸g¥Ñ¤@¯ëªºIP routing¶Ç°e¡CMax transfer rate¥Nªí¦¹flow¦b¨S¦³¨ä¥L¬y¶q¤zÂZ¤U¡A³æ¿W¶Ç°e©Ò¯à¹F¨ìªº³Ì°ª³t²v¡C

 

Traffic name

Max transfer rate

FTP traffic 1

58Mbps

Background traffic

74Mbps

 

Background traffic§Ú­Ì²£¥Í74Mbpsªº¬y¶q¡A¨Ã¤À§O¨Ï¥ÎTCP»PUPD®æ¦¡¶Ç°e¡A¥HÆ[¹î¤£¦Pªºbackground traffic¹ïbandwidth reservationªº¼vÅT¡C¦bFTP»PBackground traffic¦P®É¶Ç°eªºª¬ªp¤U¡A´ú¶q¨ìªº¶Ç°e³t²v¦p¤U¡C

 

Traffic name

Transfer rate (TCP background traffic)

Transfer rate  (UDP background traffic)

FTP traffic 1

45Mbps

16Mbps

Background traffic

45Mbps

74Mbps

 

±q¤Wªíªºµ²ªG¨Ó¬Ý¡AFTP trafficªºÀW¼e¨Ã¥¼¨ü¨ìÀ³¦³ªº«O»Ù¡C¦b¶Ç°eTCP background trafficªº±¡ªp¤U¡AFTP trafficÁÙ¥i¥H·m¨ì¤@¥bªºÀW¼e¡C¦ý¬O¹J¨ìUDP background traffic¡A¨º»òFTP traffic´N¨S»³¤F¡A¥u¯à¨Ï¥Î³Ñ¤UªºÀW¼e¡C¥Ñ¦¹µ²ªG¥i¬Ý¥X¡ALSP¤£¨ã¦³bandwidth reservation¥\¯à¡C

¬°¤F¶i¤@¨B½T»{¡A§Ú­Ì¨Ï¥Î²Ä¤GºØ¬[ºc¨ÓÅçÃÒ¡C¦p¹Ï2.2©Ò¥Ü¡A§Ú­Ì¦b¹Ï2.1ªº¬[ºc¤W¡A¥[¤JNCHC M5§@¬°²Ä2­Óftp server¡A¨Ó²£¥Í²Ä¤G­Óftp traffic¡C

Fig 2.2  Bandwidth reservation´ú¸Õ¬[ºc¹Ï2

 

Traffic name

Max transfer rate

FTP traffic 2

20Mbps

 

¨Ã«Ø¥ß3±øLSP¡A¦p¤Uªí©Ò¥Ü¡AÅý©Ò¦³ªº¸ê®Æ¬Ò¸g¥ÑLSP¶Ç°e¡C

 

LSP name

Bandwidth reservation

Traffic flow

LSP1

60Mbps

FTP traffic 1

LSP2

30Mbps

FTP traffic 2

LSP3

10Mbps

Background traffic

 

Background traffic³]©w»P«e¤@­Ó¹êÅç¬Û¦P¡A¦b3­Óflow¦P®É¶Ç°eªº±¡ªp¤U¡A´ú¶q¨ìªº¶Ç°e³t²v¦p¤U¡C

 

Traffic name

Transfer rate (TCP background traffic)

Transfer rate (UDP background traffic)

FTP traffic 1

35Mbps

9Mbps

FTP traffic 2

20Mbps

8Mbps

Background traffic

35Mbps

74Mbps

 

¥Ñµ²ªG¥i¬Ý¥X¡AFTP trafficªºÀW¼e¨ÌµM¨S¦³À³¦³ªº«O»Ù¡C§Ú­Ì½¾\Juniper routerªº¨Ï¥Î¤â¥U[2]¡A¨ä¤¤´£¨ìJuniper router²{¶¥¬qªºRSVP¨Ã¥¼´£¨Ñresource reservation¥\¯à¡A©Ò¥HLSP¤]´N¤£¨ã¦³bandwidth reservationªº¥\¯à¡C

 

2.2 LSP Reroute and Preemption

¡@¡@¦b³o­Ó¹êÅ礤§Ú­Ì±N´ú¸ÕMPLSªº¸ô®|³Æ´©ªº¥\¯à¡AÅý¤@±øLSP¸Ì¥i¥H³]©w¦h±ø¸ô®|¡C·í¨Ï¥Î¤¤ªº¸ô®|Â_½u®É¡A¯à°÷¥ß¨è¤Á´«¨ì·sªº¸ô®|¡C¥H¤Îpreemption¥\¯à¡AÆ[¹î¦bÀW¼e¤£¨¬ªº±¡ªp¤U¡Arouter¬O§_·|ÄÀ©ñ§CÀu¥ýÅvLSPªºÀW¼e¡AÅý°ªÀu¥ýÅvªºLSP¨Ï¥Î¡C

 

Fig 2.3  Reroute´ú¸Õ¬[ºc¹Ï

 

¡@¡@³o­Ó¹êÅç¨Ï¥Îªººô¸ô¬[ºc¦p¹Ï2.3©Ò¥Ü¡A¬°¤F»s³y¦h­«¸ô®|ªºª¬ªp¡A§Ú­Ì¥Î2±øfast Ethernet³s±µrouter¡A§Î¦¨2±ø¤£¦Pªº¹êÅé¸ô®|¡C¹êÅ礤Á`¦@·|«Ø¥ß3±øLSP¦p¤Uªí©Ò¥Ü¡ALSP1ªºÀu¥ýÅv³Ì°ª¡ALSP3ªºÀu¥ýÅv³Ì§C¡C§Ú­Ì±N³o3±øLSPªºprimary path»Psecondary path³]©w¦b¬Û¦Pªº¹êÅé½u¸ô¡C

 

LSP name

Bandwidth

reservation

Priority

Primary path

Secondary path

LSP1

70Mbps

1

Path1

Path1-2

LSP2

70Mbps

2

Path2

Path2-2

LSP3

70Mbps

3

Path3

Path3-2

 

2.2.1 LSP Reroute

¡@¡@­º¥ý«Ø¥ßLSP1¡AµM«áÀ˵øLSPªºª¬ºA¡C¥Ñ¤Uªí¥i¬Ý¥X¡A¥Ñ©óÀW¼e¥R¨¬¡A©Ò¥HLSP1¨Ï¥Îªº¬Oprimary path¡C

 

Nsysu@NSYSU_M5> show mpls lsp

Ingress LSP: 1 sessions

To              From     State  Rt ActivePath   P  LSPname

140.117.44.254  172.16.3.1   Up    1 path1       *   LSP1

Total 1 displayed, Up 1, Down 0

 

¦¹®É±Nprimary pathªººô¸ô½u©Þ±¼¡A¦A¦¸À˵øLSPªºª¬ºA¡Aµo²{LSP1¤w¸g¤Á´«¨ìsecondary path¤F¡C¥Ñ©óºô¸ô¬[ºc¸û¤p¡Arouter«Ü§Ö´N°»´ú¨ìÂ_½u¡A©Ò¥Hºô¸ô½u¤@©Þ±¼¡A¥ß¨è´N¤Á´«¹L¥h¤F¡C¦]¦¹LSP1§Y¨Ï¥¿¦b¶Ç°e¸ê®Æ¡A¤]¤£·|¨ü¨ì¤Ó¤jªº¼vÅT¡C

 

Nsysu@NSYSU_M5> show mpls lsp

Ingress LSP: 1 sessions

To            From      State  Rt ActivePath  P  LSPname

140.117.44.254  172.16.3.1   Up   1 path1-2        LSP1

Total 1 displayed, Up 1, Down 0

 

¦pªG§Ú­Ì±Nºô¸ô½u±µ¦^¥h¡A¨º»ò¸g¹L¤@¬q®É¶¡«á¡ALSP1·|¦Û°Ê¦^¨ìprimary path¡C¦]¬°router¨C¹j¤@¬q®É¶¡¡A´N·|¥hÀˬdprimary path¬O§_¤w«ì´_¥¿±`¡C¦pªG¥i¥H¨Ï¥Î¡A¤´µM·|¤Á´«¦^primary path¡C

 

2.2.2 LSP Preemption

¥ý«Ø¥ßLSP1¡ALSP1·|¨Ï¥Îprimary path¡C±µµÛ«Ø¥ßLSP3¡A¥Ñ©óprimary path³QLSP1¦û¥Î¡A¤wµL¨¬°÷ÀW¼e¡A¦Ó¥BLSP1ªºpriority¤ñLSP3°ª¡A¦]¦¹LSP3·|¨Ï¥Îsecondary path¡C¦pªG¤@¶}©l¥ý«Ø¥ßªº¬OLSP3¡AµM«á¦A«Ø¥ßLSP1¡A«hLSP3­ì¥»¨Ï¥Îprimary path¡A¤]·|³Q§ó´«¨ìsecondary path¡C¦¹®É§Ú­ÌÀ˵øLSPª¬ºAªºª¬ºA¦p¤U¡C

Nsysu@NSYSU_M5> show mpls lsp

Ingress LSP: 2 sessions

To              From    State  Rt ActivePath   P  LSPname

140.117.44.254  172.16.3.1  Up    1 path1       *   LSP1

140.117.48.254  172.16.3.1  Up    1 path3-2         LSP3

Total 2 displayed, Up 2, Down 0

 

±µµÛ«Ø¥ßLSP2¡A¥Ñ©óprimary path¤w³Qpriority³Ì°ªªºLSP1¦û¥Î¡A¦]¦¹LSP2·|À½±¼secondary path¤¤ªºLSP3¡C¦¹®É§Ú­ÌÀ˵øLSPªºª¬ºA¡A¥Ñ¤Uªí¥i¬Ý¥X¡ALSP3¤w¨S¦³¨ä¥L¥i¥Îªº¸ô®|¡A¦]¦¹LSP3§e²{Â_½uª¬ºA¡C

 

Nsysu@NSYSU_M5> show mpls lsp

Ingress LSP: 2 sessions

To              From    State  Rt ActivePath  P  LSPname

140.117.44.254  172.16.3.1  Up    1 path1      *   LSP1

140.117.48.254  172.16.3.1  Dn    1 -              LSP3

Total 2 displayed, Up 1, Down 1

 

Transit LSP: 1 sessions

To            From     State Rt Style Labelin Labelout LSPname

140.117.44.254  172.16.0.2 Up  0  1   100003     3   LSP2

Total 1 displayed, Up 1, Down 0

 

±qNCHC M5¤WÀ˵øLSP«Ø¥ßª¬ªp¡A¥Ñ©óLSP2ªºpriority¸û§C¡A¦]¦¹¨Ï¥Îªº¬Osecondary path¡C

 

Nsysu@nchc-jm5> show mpls lsp

Ingress LSP: 1 sessions

To              From    State  Rt ActivePath  P  LSPname

140.117.44.254  172.16.0.2  Up    1 path2-2        LSP2

Total 1 displayed, Up 1, Down 0

 

·íLSP2­è«Ø¥ß®É¡A¨Ã¤£·|¥ß¨èÀ½±¼LSP3¡A¦Ó·|¦³¤@¬q½w½Ä®É¶¡ÅýLSP3´M§ä¨ä¥L¥i¥Î¸ô®|¡C¥u¬O¦b³o­Ó´ú¸Õ¤¤¡A¨Ã¨S¦³²Ä3±ø¸ô®|¥i¥Hµ¹LSP3¨Ï¥Î¡A©Ò¥HLSP3´NÂ_½u¤F¡C

 

2.3 Path Selection

¡@¡@¦b³o­Ó¹êÅ礤¡A§Ú­Ì±N´ú¸Õ·íºô¸ô¤W¦³¦h±ø¸ô®|¦s¦b®É¡Arouter¬O§_·|¿ï¾Üºô¸ô¸û¤£¾ÖÀ½ªº¸ô®|¨Ó«Ø¥ßLSP¡C

 

Fig 2.4 Path selection´ú¸Õ¬[ºc¹Ï

 

§Ú­Ì¨Ï¥Î¹Ï2.4ªººô¸ô¬[ºc¡A«Ø¥ß2±ø¹w¯d¤£¦PÀW¼eªºLSP¡A¦p¤Uªí©Ò¥Ü¡A¥H»s³y­t¸ü­t¤£¥­§¡ªººô¸ôª¬ªp¡C

 

LSP name

Primary path

Bandwidth reservation

LSP1

Path1

70Mbps

LSP2

Path2

50Mbps

 

¦bLSP3¤¤¡A§Ú­Ì¹Á¸Õ«Ø¥ß2±ø¤£¦Pªºprimary path¥H«KÅýrouter¿ï¾Ü¡C¦ý¬OJUNOS­­¨î¶È¯à¦³1±øprimary path¦s¦b¡C©Ò¥H§Ú­Ì¥u¯à«Ø¥ß2±øsecondary pathÅýrouter¿ï¾Ü¡C¬°¤FÅýrouter¨Ï¥Îsecondary path¡A§Ú­ÌÅýprimary pathªº¹w¯d¸û¤jªºÀW¼e¡A¨Ï±oLSPµLªk¦bprimary path¤W«Ø¥ß¡ALSP3ªº³]©w¦p¤U¡C

 

 

Path name

Bandwidth reservation

Primary

Path1

70Mbps

Secondary

Path1

20Mbps

Secondary

Path2

20Mbps

 

·íLSP3«Ø¥ß§¹¦¨«á¡A§Ú­ÌÀ˵øLSP3ªºª¬ºA¡Aµo²{LSP3¨Ï¥Îªº¸ô®|¬Opath1¡A¤]´N¬O¸û¾ÖÀ½ªº¸ô®|¡C¦ý¬O¤@·|¨à¤§«á¡A§Ú­Ì¦A¦¸À˵øLSP3ªºª¬ºA¡Aµo²{¨Ï¥Îªº¸ô®|«oÅܦ¨path2¡A¤]´N¬O¸û¤£¾ÖÀ½ªº¸ô®|¡C±q³o­Óµ²ªG¨Ó¬Ý¡Arouter¦ü¥G·|¦Û°Ê¿ï¾Ü¸û¨Îªº¸ô®|¨Ó«Ø¥ßLSP¡C¤£¹L³o¼Ëªº¸ô®|¿ï¾Ü¤è¦¡»P§Ú­Ìªº´Á±æ¤£¦P¡A¦Ó§Ú­Ì¤]¤£½T©w³o¼Ëªº³]©w¤è¦¡¨Ï§_¥¿½T¡A¦]¦¹³o­Ó°ÝÃD¯d«Ý¥¼¨Ó°µ¶i¤@¨Bªº´ú¸Õ¡C

 

¤T¡BClass of Service¥\¯à´ú¸Õ

¡@¡@¥Ñ©óLSP¤£¨ã¦³bandwidth reservation¥\¯à¡A¦ý§Ú­Ì¤´µM§Æ±æ¯à°÷«O»Ù°ªÀu¥ýÅvªº¬y¶q¡A©Ò¥H§Ú­Ì¹Á¸Õ¨Ï¥Îclass of service¨Ó¸Ñ¨M³o­Ó°ÝÃD¡C

 

3.1 Traffic Schedule

 

Fig 3.1 CoS´ú¸Õ¬[ºc¹Ï

 

³o­Ó¹êÅç¨Ï¥Î¹Ï3.1ªººô¸ô¬[ºc¡A§Ú­Ì¦bNSYSU M5¤¤§âFTP trafficÂkÃþ¬°EF¡A¨Ã±NDSCP¼Ð¥Ü¬°EF¡CBackground traffic«hÂkÃþ¬°BE¡ADSCP¤£§ïÅÜ¡CµM«á¥ÑNSYSU M5-2®Ú¾ÚDSCP¡A©ñ¨ì¹ïÀ³ªºqueue¤¤¡A¨Ã§@traffic scheduling¡C¦bNSYSU M5-2ªºtraffic scheduling³]©w¦p¤U¡C

 

Forwarding class

¨Ï¥ÎÀW¼e

EF

¥i¨Ï¥Î40%ªºÀW¼e

BE

¥i¨Ï¥Î60%ªºÀW¼e

 

¤Uªí¬°FTP traffic»PBackground traffic³æ¿W¶Ç°e®É©Ò¯à¹F¨ìªº³Ì°ª³t²v¡C

 

Traffic name

Max transfer rate

FTP traffic

80Mbps

Background traffic

74Mbps

 

Background traffic³]©w¬°74Mbpsªº¬y¶q¡A¤À§O¨Ï¥ÎTCP»PUPD®æ¦¡¶Ç°e¡C¦bFTP»PBackground traffic¦P®É¶Ç°eªºª¬ªp¤U¡A´ú¶q¨ìªº¶Ç°e³t²v¦p¤U¡C

 

Traffic name

Transfer rate (TCP background traffic)

Transfer rate (UDP background traffic)

FTP traffic

36Mbps

36Mbps

Background traffic

54Mbps

54Mbps

 

¥Ñ¤Wªíªºµ²ªG¥i¬Ý¥X¡A¤£ºÞbackground traffic¬OTCP©Î¬OUDP®æ¦¡¡AFTP traffic³£¯à¨ü¨ìÀ³¦³ªºÀW¼e«O»Ù¡C¦]¦¹ÅçÃÒtraffic scheduling¥\¯à¥i¥¿½Tªº°õ¦æ¡C¥t¥~§Ú­Ì¨Ï¥Îport mirror¥\¯à§ì¨úFTP traffic«Ê¥]¡A¨äDSCP­È½T¹ê¤w­×§ï¬°EF¡A¦]¦¹DSCP¼Ð¥Üªº¥\¯à¤]¥i¥¿½T°õ¦æ¡C

¡@¡@¦btraffic scheduling¤¤ÀW¼e±±¨î¥i¤À¬°ºë½T»P¤£ºë½T¨âºØ¤è¦¡¡Aºë½T±±¨îªí¥Ürouter·|ÄY®æ­­¨î³o­Óqueue¥u¯à¨Ï¥Î§Ú­Ìµ¹©wªºÀW¼e¡A§Y¨Ï¦³¦h¾lªºÀW¼e¡A¤]¤£·|µ¹³o­Óqueue¨Ï¥Î¡C§Ú­Ì¨Ï¥Îºë½T±±¨î¡AÅýEF queue¥u¯à¨Ï¥Î40%ªºÀW¼e¡AµM«á³æ¿W¶Ç°eFTP traffic¡AFTP trafficªºÀW¼e½T¹ê³Q­­¨î¦b36Mbps¡A¦]¦¹ºë½T±±¨î¥i¥H¥¿±`¹B§@¡C

 

Fig 3.2  ¸ó³æ¦ìCoS´ú¸Õ¬[ºc¹Ï

 

±µµÛ§Ú­Ì¨Ï¥Î¹Ï3.2ªº¬[ºc¡A´ú¸Õ¦b¸ó³æ¦ìªººô¸ô¬[ºc¤U¡ACoSªº¹B§@¬O§_¥¿±`¡C¦bNCHC M5¤W±NFTP¬y¶qÂkÃþ·LEF¡A¨Ã°µ±NDSCP¼Ð¥Ü¬°EF¡AµM«á¦bNSYSU M5¤W®Ú¾ÚDSCP§@traffic scheduling¡C¥Ñ©óFTP serverªº¶Ç°e³t²v¸ûºC¡A¦]¦¹µLªk±q¶Ç°e³t²v¨Ó§PÂ_traffic scheduling¬O§_¦¨¥\¡C¤£¹L§Ú­Ì¨Ï¥Îport mirror¥\¯à§ì¨ú«Ê¥]¡Aµo²{DSCP¤w¼Ð¥Ü¦¨EF¡A©Ò¥HCoSÀ³¸Ó¬O¦³¥¿½Tªº°õ¦æ¡C

 

3.2 CoS-based Forwarding

¬°¤F¶i¤@¨B«O»Ù°ªÀu¥ýÅvªº¬y¶q¡A§Ú­Ì§Æ±æÅý°ªÀu¥ýÅvªº¬y¶q»P§CÀu¥ýÅvªº¬y¶q¡A¨Ï¥Î¤£¦Pªº¸ô®|¨Ó¶Ç°e¡AÁקK°ªÀu¥ýÅvªº¬y¶q¨ü¨ì¤zÂZ¡CCoS-based forwardingªº¥Øªº´N¬O­n´£¨Ñ³o¼Ëªº¥\¯à¡C

Fig 3.3 CoS-based forwarding´ú¸Õ¬[ºc¹Ï

 

§Ú­Ì¨Ï¥Î¹Ï3.3ªº¬[ºc¨ÓÅçÃÒ³o­Ó¥\¯à¡A§Ú­Ì§Æ±æEF traffic¯à°÷¸g¥ÑRoute-1¶Ç°e¡A¦ÓBE traffic«h¸g¥ÑRoute-2¶Ç°e¡C¦]¦¹§Ú­Ì¦brouter¤¤§@¤F¥H¤Uªº³]©w¡C

 

Forwarding Class

Next-hop

EF

211.73.90.3

BE

140.117.47.253

 

§Ú­Ì¦b140.117.46.1¤¤¨Ï¥Îtraceroute¥hÀ˵ø¦æ¨«¸ô®|¡A«Ê¥]¤´µM¬O¸g¥ÑTANET-NBEN¶Ç°e¡C§Ú­Ì¥Îport mirror¥\¯à§ì¨ú«Ê¥]¡AÀ˵øDSCP¡Aµo²{DSCP¤w³Q§ï¬°EF¡A¦]¦¹¥iÃÒ¹ê«Ê¥]½T¹ê¦³°e¨ìEF queue¤¤¡A©Ò¥HCoS-based forwarding¨Ã¨S¦³¥¿½Tªº°õ¦æ¡C¤£¹L³o­Ó¶µ¥Ø¡A§Ú­Ì¨Ã¨S¦³§@§ó¸Ô²Óªº´ú¸Õ¡A¦]¦¹¦³¥i¯à¬O³]©w¤Wªº¿ù»~¡A©Ò¥H³o­Ó¥\¯à¤´«Ý¶i¤@¨B¬ã¨s¡C

 

¥|¡B°Ñ¦Ò¤åÄm

[1]         E. Rosen, A. Viswanathan, R. Callon, ¡§Multiprotocol Label Switching Architecture¡¨, RFC 3031, Jan. 2001.

[2]         R. Braden, Ed., L. Zhang, S. Berson, S. Herzog, S. Jamin, ¡§Resource ReSerVation Protocol (RSVP) -- Version 1 Functional Specification¡¨, RFC 2205, September 1997.

[3]         JUNOS 5.5 Software Documentation, http://www.juniper.net/techpubs/software/junos/junos55/index.html