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1ïŒ åºæ¬çãªãããã¯ãŒã¯çšèªãOSIãããã¯ãŒã¯ã¢ãã«ãããã³TCP / IPãããã³ã«ã¹ã¿ãã¯ã
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æåã«é ã«æµ®ãã¶ã®ã¯ãã¹ã€ããéã«ããã«ããã€ãã®ã¯ã€ã€ãããããããããšã§ãã ãããããã®ãã£ã³ããŒã³ã¯æ ¹æ¬çã«ééã£ãŠããŸãã åé·ãªã³ã¯ãè¿œå ãããšãåã®èšäºã§è¿°ã¹ãããã«ããããã¯ãŒã¯ã«ã«ãŒããçºçããŸãã STPãããã³ã«ã®çŽ æŽããããã¡ããªãŒãããããããããã¹ãŠã解決ãããšäž»åŒµããããšãã§ããŸãã ãããããããå®å šã«çå®ã§ã¯ãããŸããã åããã±ãããã¬ãŒãµãŒã®äŸã瀺ããŸãã
ã芧ã®ãšããã2ã€ã®ãã£ãã«ããã1ã€ã ããã¢ã¯ãã£ãã§ãã 2çªç®ã¯ãã¢ã¯ãã£ãã倱æãããŸã§åŸ æ©ããŸãã ã€ãŸããããçšåºŠã®ãã©ãŒã«ããã¬ã©ã³ã¹ãå®çŸããŸãããã¹ã«ãŒããããäžããŠãåé¡ã¯è§£æ±ºããŸããã ãããŠã2çªç®ã®ãã£ãã«ã¯ã¢ã€ãã«ç¶æ ã«ãªããŸãã è¯ã圢ã®ã«ãŒã«ã¯ããããã¯ãŒã¯èŠçŽ ãã¢ã€ãã«ç¶æ ã«ãªããªããããªã¢ãããŒãã§ãã æé©ãªãœãªã¥ãŒã·ã§ã³ã¯ãè€æ°ã®ç©çã€ã³ã¿ãŒãã§ã€ã¹ãã1ã€ã®å€§ããªè«çã€ã³ã¿ãŒãã§ã€ã¹ãäœæãããããä»ããŠãã©ãã£ãã¯ãé§åããããšã§ãã ãããŠãEtherchannelãå©ãã«ãªããŸãã Cisco OSã«ã¯ã3çš®é¡ã®éçŽããããŸãã
- 1ïŒLACPãŸãã¯Link Aggregation Control Protocolã¯ããªãŒãã³ãªIEEEæšæºã§ãã
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æåéèšã¯ã管çè èªèº«ã®ãªã¹ã¯ã§è¡ãããŸãã ã¹ã€ããã¯äœã調æŽããã管çè ãäºèŠãããã®ã«äŸåããŸãã ããã§ããå€ãã®ãã³ããŒã¯æåéçŽã®äœ¿çšãæšå¥šããŠããŸããããã¯ããããã®å Žåã§ããé©åãªåäœã®ããã«äžèšã®ã«ãŒã«ã«åŸãå¿ èŠããããLACPãŸãã¯PAgPãããŽã·ãšãŒãããããã«ã¹ã€ããããµãŒãã¹ã¡ãã»ãŒãžãçæããå¿ èŠããªãããã§ãã
LACPãããã³ã«ããå§ããŸãã æ©èœãããã«ã¯ã ã¢ã¯ãã£ãã¢ãŒããŸãã¯ããã·ãã¢ãŒãã«ããå¿ èŠããããŸãã ã¢ãŒãã®éãã¯ã ã¢ã¯ãã£ãã¢ãŒãã§ã¯LACPãããã³ã«ãããã«ã¢ã¯ãã£ãã«ãªãã ããã·ãã¢ãŒãã§ã¯ãã€ããŒããã®LACPã¡ãã»ãŒãžãæ€åºãããšLACPãæå¹ã«ãªãããšã§ãã ãããã£ãŠãLACPãšã®ã¢ã°ãªã²ãŒã·ã§ã³ãæ©èœããããã«ã¯ãäž¡æ¹ãã¢ã¯ãã£ãã¢ãŒãã§ããå¿ èŠããããŸããäžæ¹ã¯ã¢ã¯ãã£ãã¢ãŒãã§ãããäžæ¹ã¯ããã·ãã¢ãŒãã§ãã ã¿ãã¬ãããäœããŸãã
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2æ¬ã®ã¯ã€ã€ã§æ¥ç¶ããã2ã€ã®ã¹ã€ããããããŸãã ã芧ã®ããã«ãSTPãããã³ã«ã®ããªã¬ãŒã«ããã1ã€ã®ãªã³ã¯ãã¢ã¯ãã£ãïŒç·è²ã«ç¹ç¯ïŒã§ã2çªç®ã®ããã¯ã¢ããïŒãªã¬ã³ãžã«ç¹ç¯ïŒããããŸãã ããã¯è¯ãã§ãããããã³ã«ã¯ããŸããã£ãŠããŸãã ããããäž¡æ¹ã®ãªã³ã¯ãäžç·ã«çµåããããšæããŸãã 次ã«ãSTPãããã³ã«ã¯ãããã1ã€ã®ã¯ã€ã€ã§ãããšèŠãªããããããã³ã°ãåæ¢ããŸãã
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SW1(config)#interface fastEthernet 0/1 - SW1(config-if)#shutdown - ( , STP ) %LINK-5-CHANGED: Interface FastEthernet0/1, changed state to administratively down %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to down SW1(config-if)#channel-group 1 mode active - port-channel 1 ( ) active. Creating a port-channel interface Port-channel 1 - . SW1(config-if)#no shutdown - . %LINK-5-CHANGED: Interface FastEthernet0/1, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up %LINK-5-CHANGED: Interface Port-channel 1, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel 1, changed state to up SW1(config)#interface fastEthernet 0/2 - SW1(config-if)#shutdown - . %LINK-5-CHANGED: Interface FastEthernet0/2, changed state to administratively down %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to down SW1(config-if)#channel-group 1 mode active - port-channel 1 SW1(config-if)#no shutdown - . %LINK-5-CHANGED: Interface FastEthernet0/2, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up
ããã§ãæåã®ã¹ã€ããã®ã»ããã¢ãããå®äºããŸããã ä¿¡é Œæ§ã®ããã«ãshow etherchannel port-channelã³ãã³ããå ¥åã§ããŸãã
SW1#show etherchannel port-channel Channel-group listing: ---------------------- Group: 1 ---------- Port-channels in the group: --------------------------- Port-channel: Po1 (Primary Aggregator) ------------ Age of the Port-channel = 00d:00h:08m:44s Logical slot/port = 2/1 Number of ports = 2 GC = 0x00000000 HotStandBy port = null Port state = Port-channel Protocol = LACP Port Security = Disabled Ports in the Port-channel: Index Load Port EC state No of bits ------+------+------+------------------+----------- 0 00 Fa0/1 Active 0 0 00 Fa0/2 Active 0 Time since last port bundled: 00d:00h:08m:43s Fa0/2
ãã®ãããªããŒããã£ãã«ããããäž¡æ¹ã®ã€ã³ã¿ãŒãã§ã€ã¹ãããã«ååšããããšãããããŸãã
2çªç®ã®ããã€ã¹ã«æž¡ããŸãã
SW2(config)#interface range fastEthernet 0/1-2 - . SW2(config-if-range)#shutdown - . %LINK-5-CHANGED: Interface FastEthernet0/1, changed state to administratively down %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to down %LINK-5-CHANGED: Interface FastEthernet0/2, changed state to administratively down %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to down SW2(config-if-range)#channel-group 1 mode passive - port-channel passive (, LACP-). Creating a port-channel interface Port-channel 1 - . SW2(config-if-range)#no shutdown - . %LINK-5-CHANGED: Interface FastEthernet0/1, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up %LINK-5-CHANGED: Interface Port-channel 1, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel 1, changed state to up %LINK-5-CHANGED: Interface FastEthernet0/2, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up
ãã®åŸããã£ãã«ã¯äžè²«ããŸãã show etherchannel summaryã³ãã³ãã§ãããèŠãããšãã§ããŸãïŒ
SW1#show etherchannel summary Flags: D - down P - in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 U - in use f - failed to allocate aggregator u - unsuitable for bundling w - waiting to be aggregated d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+---------------------------------------------- 1 Po1(SU) LACP Fa0/1(P) Fa0/2(P)
ããã§ã¯ãããŒããã£ãã«ã°ã«ãŒãã䜿çšãããŠãããããã³ã«ãã€ã³ã¿ãŒãã§ã€ã¹ãããã³ãããã®ã¹ããŒã¿ã¹ã確èªã§ããŸãã ãã®å ŽåãSUãã©ã¡ãŒã¿ãŒã¯ã第2ã¬ãã«ã®éçŽãå®è¡ããããã®ã€ã³ã¿ãŒãã§ãŒã¹ã䜿çšãããŠããããšã瀺ããŸãã ãŸãããã©ã¡ãŒã¿Pã¯ãã€ã³ã¿ãŒãã§ã€ã¹ãããŒããã£ãã«ç¶æ ã§ããããšã瀺ããŸãã
ãã¹ãŠã®ãªã³ã¯ã¯ç·è²ã§ã¢ã¯ãã£ãã§ãã STPã¯ãããã«å¯ŸããŠæ©èœããŸããã
ãã±ãããã¬ãŒãµãŒã«ã°ãªãããããããšãããã«èŠåããŸãã äžçªäžã®è¡ã¯ãæ§æåŸãã€ã³ã¿ãŒãã§ã€ã¹ãã¹ã¿ã³ãã¢ãã³ïŒãã©ã¡ãŒã¿ãŒIïŒã«ãªãå¯èœæ§ããããããããã®ãŸãŸã«ããŠãããããªããšããããšã§ãã å·çã®æç¹ã§ãç§ã¯ãã®äžå ·åãæ±ããŠãããããã©ããåäœæããããšã«ããŸããã
LACPã®äœæ¥ã«ã€ããŠããå°ã詳ãã説æããŸãã ã·ãã¥ã¬ãŒã·ã§ã³ã¢ãŒãããªã³ã«ããŠãLACPãã£ã«ã¿ãŒã®ã¿ãéžæããŠãæ®ããæ°ã«ãªããªãããã«ããŸãã
SW1ãLACPã¡ãã»ãŒãžããã€ããŒã«éä¿¡ããããšãããããŸãã ã€ãŒãµããããã£ãŒã«ããèŠãŠãã ããã Sourceã§ã¯ã圌ã¯MACã¢ãã¬ã¹ãæžã蟌ã¿ãDestinationã§ã¯ããã«ããã£ã¹ãã¢ãã¬ã¹ã¯0180.C200.0002ã§ãã ãã®ã¢ãã¬ã¹ã¯LACPã§ãªãã¹ã³ããŠããŸãã ãã以äžã¯LACPã®ãé·ã足åžãã§ãã åãã£ãŒã«ãã«ã€ããŠã¯èª¬æããŸããããç§ã®æèŠã§ã¯éèŠãªãã£ãŒã«ãã®ã¿ã«æ³šç®ããŸãã ãããããã®åã«ããã€ãã®èšèã ãã®ã¡ãã»ãŒãžã¯ãå€ãã®ç®çã®ããã«ããã€ã¹ã«ãã£ãŠäœ¿çšãããŸãã ããã¯ãåæãåéãéçŽãã¢ã¯ãã£ããã£ã®æ€èšŒãªã©ã§ãã ã€ãŸããããã€ãã®æ©èœããããŸãã ãããŠãããããã¹ãŠæ©èœãå§ããåã«ã圌ãã¯èªåçšã«ä»®æ³MACã¢ãã¬ã¹ãéžæããŸãã ããã¯éåžžãå©çšå¯èœãªæå°ãµã€ãºã§ãã
ãããŠããããã®ã¢ãã¬ã¹ãLACPãã£ãŒã«ãã«æžã蟌ã¿ãŸãã
移åäžã«ããããããã«é ã«å ¥ããšã¯éããŸããã åçãããã°ããã£ãšç°¡åã«ãªããšæããŸãã CPTã§ã¯ãLACP圢åŒã¯å°ãæ²ãã£ãŠãããããå®éã®ãã³ãã®ç»é¢ã衚瀺ããŸãã
匷調衚瀺ãããè¡ã¯ãã¡ãã»ãŒãžãéä¿¡ãããç®çã瀺ããŠããŸãã ããã圌ã®äœåã®æ¬è³ªã§ãã ããã¯ãåäžã®ããŒããã£ãã«è«çã€ã³ã¿ãŒãã§ã€ã¹ã§ãã ããªãã¯ããã«è¡ã£ãŠèŠãããšãã§ããŸãïŒ
SW1(config)#interface port-channel 1 SW1(config-if)#? arp Set arp type (arpa, probe, snap) or timeout bandwidth Set bandwidth informational parameter cdp Global CDP configuration subcommands delay Specify interface throughput delay description Interface specific description duplex Configure duplex operation. exit Exit from interface configuration mode hold-queue Set hold queue depth no Negate a command or set its defaults service-policy Configure QoS Service Policy shutdown Shutdown the selected interface spanning-tree Spanning Tree Subsystem speed Configure speed operation. storm-control storm configuration switchport Set switching mode characteristics tx-ring-limit Configure PA level transmit ring limit
ãããŠããã®ã€ã³ã¿ãŒãã§ãŒã¹ã§å®è¡ããããã¹ãŠã®ã¢ã¯ã·ã§ã³ã¯ãç©çããŒãã®å€æŽã«èªåçã«ã€ãªãããŸãã 以äžã«äŸã瀺ããŸãã
SW1(config-if)#switchport mode trunk %LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel 1, changed state to down %LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel 1, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to down %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to down %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up
port-channelããã©ã³ã¯ã¢ãŒãã«ãªã£ããšããããã«åãããŠç©çã€ã³ã¿ãŒãã§ã€ã¹ãèªåçã«ãã«ãããŸããã show running-configãšå ¥åããŸãã
SW1#show running-config Building configuration... Current configuration : 1254 bytes ! version 12.2 no service timestamps log datetime msec no service timestamps debug datetime msec no service password-encryption ! hostname SW1 ! ! ! ! ! spanning-tree mode pvst ! interface FastEthernet0/1 channel-group 1 mode active switchport mode trunk ! interface FastEthernet0/2 channel-group 1 mode active switchport mode trunk ! *************************************** interface Port-channel 1 switchport mode trunk !
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SW1#show etherchannel load-balance EtherChannel Load-Balancing Operational State (src-mac): Non-IP: Source MAC address IPv4: Source MAC address IPv6: Source MAC address
çŸæç¹ã§ã¯ãMACã¢ãã¬ã¹ã®å€ã«åºã¥ããŠãã©ã³ã·ã³ã°ãå®è¡ããŸãã ããã©ã«ãã§ã¯ããã©ã³ã·ã³ã°ãè¡ãããŸãã ã€ãŸããæåã®ãªã³ã¯ãä»ããŠæåã®MACã¢ãã¬ã¹ãã2çªç®ã®ãªã³ã¯ãä»ããŠ2çªç®ã®MACã¢ãã¬ã¹ãã1çªç®ã®ãªã³ã¯ãä»ããŠ3çªç®ã®MACã¢ãã¬ã¹ãå床枡ãããã亀äºã«ãªããŸãã ãããããã®ã¢ãããŒãã¯åžžã«æ£ãããšã¯éããŸããã çç±ã説æããŸãã
ç¹å®ã®æ¡ä»¶ä»ããããã¯ãŒã¯ããããŸãã 2å°ã®ã³ã³ãã¥ãŒã¿ãŒãSW1ã«æ¥ç¶ãããŠããŸãã 次ã«ããã®ã¹ã€ããã¯SW2éçŽãã£ãã«ã«æ¥ç¶ããŸãã ã«ãŒã¿ãŒãSW2ã«æ¥ç¶ãããŠããŸãã ããã©ã«ãã§ã¯ãLoad-Balanceã¯src-macã«èšå®ãããŠããŸãã ãããŠããããèµ·ããããšã§ãã MACã¢ãã¬ã¹111ã®ãã¬ãŒã ã¯æåã®ãªã³ã¯ã§éä¿¡ãããMACã¢ãã¬ã¹222ã®ãã¬ãŒã ã¯2çªç®ã®ãªã³ã¯ã§éä¿¡ãããŸãã ãããããã«ãããŸãã SW2ã«æž¡ããŸãã MACã¢ãã¬ã¹ã333ã®1ã€ã®ã«ãŒã¿ãŒã®ã¿ãæ¥ç¶ãããã«ãŒã¿ãŒããã®ãã¹ãŠã®ãã¬ãŒã ã¯æåã®ãªã³ã¯ã«ãã£ãŠSW1ã«éä¿¡ãããŸãã ãããã£ãŠã2çªç®ã¯åžžã«ã¢ã€ãã«ç¶æ ã«ãªããŸãã ãããã£ãŠãããã§ã¯ãéä¿¡å MACã¢ãã¬ã¹ã§ã¯ãªããå®å MACã¢ãã¬ã¹ã«ãã£ãŠãã©ã³ã¹ã調æŽããæ¹ãè«ççã§ãã 次ã«ãããšãã°ãæåã®ã³ã³ãã¥ãŒã¿ãŒã«éä¿¡ããããã¹ãŠã®ãã®ãæåã®ãªã³ã¯ã«éä¿¡ããã2çªç®ã2çªç®ã®ãªã³ã¯ã«éä¿¡ãããŸãã
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SW1(config)#port-channel load-balance ? dst-ip Dst IP Addr dst-mac Dst Mac Addr src-dst-ip Src XOR Dst IP Addr src-dst-mac Src XOR Dst Mac Addr src-ip Src IP Addr src-mac Src Mac Addr
ããã§æããã ãšæããŸãã ããã¯LACPã ãã§ãªããä»ã®æ¹æ³ã®ãã©ã³ã¹èª¿æŽã®äŸã§ããããšã«æ³šæããŠãã ããã
LACPã«é¢ããäŒè©±ãçµäºããŸãã çµå±ããã®ãããã³ã«ã¯ããã®ãªãŒãã³æ§ã®ããã«æãé »ç¹ã«äœ¿çšãããã»ãšãã©ã®ãã³ããŒã§äœ¿çšã§ãããšããèšããŸããã
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ååã®PAgPã«ã€ããŠã åè¿°ã®ããã«ãããã¯çŽç²ã«ãtsiskovskiyããããã³ã«ã§ãã ããŸã䜿çšãããããšã¯ãããŸããïŒCiscoã®æ©åšã®ã¿ã§æ§ç¯ããããããã¯ãŒã¯ã¯ãç°æ©çš®æ··åã§ã¯ãªãããïŒã åäœããLACPãšåæ§ã«æ§æãããŠããŸãããã·ã¹ã³ã¯ãããç¥ã£ãŠããå¿ èŠããããããæ€èšã«ç§»ããŸãã
PAgPã«ã¯2ã€ã®ã¢ãŒãããããŸãã
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- èªå-PAgPã¡ãã»ãŒãžãå°çããå Žåã«ãªã³ã«ããŸãã
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ãããŠSW1ã«è¡ããŸãïŒ
SW1(config)#interface range fastEthernet 0/1-2 - . SW1(config)#shutdown - . %LINK-5-CHANGED: Interface FastEthernet0/1, changed state to administratively down %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to down %LINK-5-CHANGED: Interface FastEthernet0/2, changed state to administratively down %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to down SW1(config-if-range)#channel-group 1 mode desirable - port-channel desirable ( ). Creating a port-channel interface Port-channel 1
次ã«ãSW2ã®æ§æã«é²ã¿ãŸãïŒSW1ã®ã€ã³ã¿ãŒãã§ã€ã¹ããªãã«ãªã£ãŠããããšãå¿ããªãã§ãã ãããåŸã§ãããã«æ»ãå¿ èŠããããŸãïŒã
SW2(config)#interface range fastEthernet 0/1-2 - . SW2(config-if-range)#channel-group 1 mode auto - port-channel auto (, PAgP-). Creating a port-channel interface Port-channel 1
SW1ã«æ»ããã€ã³ã¿ãŒãã§ãŒã¹ããªã³ã«ããŸãã
SW1(config)#interface range fastEthernet 0/1-2 SW1(config-if-range)#no shutdown %LINK-5-CHANGED: Interface FastEthernet0/1, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up %LINK-5-CHANGED: Interface Port-channel 1, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel 1, changed state to up %LINK-5-CHANGED: Interface FastEthernet0/2, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up . . SW1: <source>SW1#show etherchannel summary Flags: D - down P - in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 U - in use f - failed to allocate aggregator u - unsuitable for bundling w - waiting to be aggregated d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+---------------------------------------------- 1 Po1(SU) PAgP Fa0/1(P) Fa0/2(P)
SW2ïŒ
SW2#show etherchannel summary Flags: D - down P - in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 U - in use f - failed to allocate aggregator u - unsuitable for bundling w - waiting to be aggregated d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+---------------------------------------------- 1 Po1(SU) PAgP Fa0/1(P) Fa0/2(P)
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ã€ãŸããSW2ã®éä¿¡å MACã¢ãã¬ã¹ã«è¡šç€ºãããŸãã å®å ã¯ãPAgPã®ãã«ããã£ã¹ãã¢ãã¬ã¹ã§ãã ããé«ãLLCããã³SNAPãããã³ã«ã ãã®å Žåããããã¯ç§ãã¡ã®èå³ãåŒããã®ã§ã¯ãªããPAgPã«æž¡ããŸãã ãã£ãŒã«ãã®1ã€ã«ã圌ã¯SW1ã®ä»®æ³MACã¢ãã¬ã¹ïŒLACPãšåãåçã«åŸã£ãŠéžæãããïŒãæžã蟌ã¿ããã®äžã«åœŒã®ååãšãã®ã¡ãã»ãŒãžãåºãããŒããæžã蟌ã¿ãŸãã
ååãšããŠãæ§é èªäœãé€ããŠãLACPãšå®è³ªçã«éãã¯ãããŸããã 誰ããã£ãšèªã¿ããã®ããç 究宀ãžã®ãªã³ã¯ ã ãããŠãããã¯æ¬ç©ã«èŠããŸãïŒ
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Switch(config)#default interface faX/X
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SW1(config)#interface range fastEthernet 0/1-2 SW1(config-if-range)#shutdown %LINK-5-CHANGED: Interface FastEthernet0/1, changed state to administratively down %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to down %LINK-5-CHANGED: Interface FastEthernet0/2, changed state to administratively down %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to down SW1(config-if-range)#channel-group 1 mode on - port-channel . Creating a port-channel interface Port-channel 1 SW1(config-if-range)#no shutdown %LINK-5-CHANGED: Interface FastEthernet0/1, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up %LINK-5-CHANGED: Interface Port-channel 1, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel 1, changed state to up %LINK-5-CHANGED: Interface FastEthernet0/2, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up
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SW2(config)#interface range fastEthernet 0/1-2 SW2(config-if-range)#channel-group 1 mode on Creating a port-channel interface Port-channel 1 %LINK-5-CHANGED: Interface Port-channel 1, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel 1, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to down %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to down %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up
ã»ããã¢ãããå®äºããŸããã show etherchannel summaryã³ãã³ãã§ç¢ºèªããŸãã
SW1#show etherchannel summary Flags: D - down P - in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 U - in use f - failed to allocate aggregator u - unsuitable for bundling w - waiting to be aggregated d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+---------------------------------------------- 1 Po1(SU) - Fa0/1(P) Fa0/2(P)
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