この製品のドキュメントセットは、偏向のない言語を使用するように配慮されています。このドキュメントセットでの偏向のない言語とは、年齢、障害、性別、人種的アイデンティティ、民族的アイデンティティ、性的指向、社会経済的地位、およびインターセクショナリティに基づく差別を意味しない言語として定義されています。製品ソフトウェアのユーザインターフェイスにハードコードされている言語、RFP のドキュメントに基づいて使用されている言語、または参照されているサードパーティ製品で使用されている言語によりドキュメントに例外が存在する場合があります。シスコのインクルーシブ ランゲージの取り組みの詳細は、こちらをご覧ください。
シスコは世界中のユーザにそれぞれの言語でサポート コンテンツを提供するために、機械と人による翻訳を組み合わせて、本ドキュメントを翻訳しています。ただし、最高度の機械翻訳であっても、専門家による翻訳のような正確性は確保されません。シスコは、これら翻訳の正確性について法的責任を負いません。原典である英語版(リンクからアクセス可能)もあわせて参照することを推奨します。
このドキュメントでは、vPCオブジェクトトラッキング、使用する理由、および動作について説明します。
このデモンストレーションで使用するネットワークダイアグラムを次に示します。
vPCピアリンクはポートチャネル1です。イーサネット5/1はvPCピアキープアライブリンクです。 各N7Kボックスには、L3 /30リンクe3/3およびe3/4を介して接続された2つのコアルータがあります。 N5KAとN5KBは、vPC 100とvPC 101に接続されたL2スイッチvPCをシミュレートしています。N7KAはvPCプライマリデバイスです。
N7KA:
N7KA-vdc2# show run vpc !Command: show running-config vpc !Time: Thu Sep 26 19:51:57 2013 version 6.1(4) feature vpc vpc domain 102 peer-keepalive destination 1.1.1.2 source 1.1.1.1 vrf vpc-keepalive peer-gateway track 1 auto-recovery interface port-channel1 vpc peer-link interface port-channel100 vpc 100 interface port-channel101 vpc 101 N7KA-vdc2# show run track !Command: show running-config track !Time: Thu Sep 26 19:51:59 2013 version 6.1(4) track 1 list boolean or object 2 object 3 object 4 track 2 interface port-channel1 line-protocol track 3 interface Ethernet3/3 line-protocol track 4 interface Ethernet3/4 line-protocol N7KA-vdc2# show vpc brief Legend: (*) - local vPC is down, forwarding via vPC peer-link vPC domain id : 102 Peer status : peer adjacency formed ok vPC keep-alive status : peer is alive Configuration consistency status : success Per-vlan consistency status : success Type-2 consistency status : success vPC role : primary Number of vPCs configured : 2 Track object : 1 Peer Gateway : Enabled Peer gateway excluded VLANs : - Dual-active excluded VLANs : - Graceful Consistency Check : Enabled Auto-recovery status : Enabled (timeout = 240 seconds) vPC Peer-link status --------------------------------------------------------------------- id Port Status Active vlans -- ---- ------ -------------------------------------------------- 1 Po1 up 1 vPC status ---------------------------------------------------------------------- id Port Status Consistency Reason Active vlans -- ---- ------ ----------- ------ ------------ 100 Po100 up success success 1 101 Po101 up success success 1 N7KA-vdc2# show track Track 1 List Boolean or Boolean or is UP 2 changes, last change 23:24:08 Track List Members: object 4 UP object 3 UP object 2 UP Tracked by: vPCM 102 Track 2 Interface port-channel1 Line Protocol Line Protocol is UP 1 changes, last change 23:26:59 Tracked by: Track List 1 Track 3 Interface Ethernet3/3 Line Protocol Line Protocol is UP 3 changes, last change 23:26:50 Tracked by: Track List 1 Track 4 Interface Ethernet3/4 Line Protocol Line Protocol is UP 3 changes, last change 23:26:48 Tracked by: Track List 1 N7KA-vdc2#
N7KB:
N7KB-vdc2# show run vpc !Command: show running-config vpc !Time: Thu Sep 26 19:53:17 2013 version 6.1(4) feature vpc vpc domain 102 peer-keepalive destination 1.1.1.1 source 1.1.1.2 vrf vpc-keepalive peer-gateway track 1 auto-recovery interface port-channel1 vpc peer-link interface port-channel100 vpc 100 interface port-channel101 vpc 101 N7KB-vdc2# show run track !Command: show running-config track !Time: Thu Sep 26 19:53:20 2013 version 6.1(4) track 1 list boolean or object 2 object 3 object 4 track 2 interface port-channel1 line-protocol track 3 interface Ethernet3/3 line-protocol track 4 interface Ethernet3/4 line-protocol N7KB-vdc2# show vpc brief Legend: (*) - local vPC is down, forwarding via vPC peer-link vPC domain id : 102 Peer status : peer adjacency formed ok vPC keep-alive status : peer is alive Configuration consistency status : success Per-vlan consistency status : success Type-2 consistency status : success vPC role : secondary Number of vPCs configured : 2 Track object : 1 Peer Gateway : Enabled Peer gateway excluded VLANs : - Dual-active excluded VLANs : - Graceful Consistency Check : Enabled Auto-recovery status : Enabled (timeout = 240 seconds) vPC Peer-link status --------------------------------------------------------------------- id Port Status Active vlans -- ---- ------ -------------------------------------------------- 1 Po1 up 1 vPC status ---------------------------------------------------------------------- id Port Status Consistency Reason Active vlans -- ---- ------ ----------- ------ ------------ 100 Po100 up success success 1 101 Po101 up success success 1 N7KB-vdc2# show track Track 1 List Boolean or Boolean or is UP 2 changes, last change 23:25:51 Track List Members: object 4 UP object 3 UP object 2 UP Tracked by: vPCM 102 Track 2 Interface port-channel1 Line Protocol Line Protocol is UP 1 changes, last change 23:29:09 Tracked by: Track List 1 Track 3 Interface Ethernet3/3 Line Protocol Line Protocol is UP 3 changes, last change 23:28:55 Tracked by: Track List 1 Track 4 Interface Ethernet3/4 Line Protocol Line Protocol is UP 3 changes, last change 23:28:56 Tracked by: Track List 1 N7KB-vdc2#
vPCオブジェクトトラッキングは、このようなシナリオで使用されます。 vPCピアリンクおよびコアへのL3アップリンクに使用される1つのM132モジュールがあります。 ハードウェア障害によりM132モジュールが失われる場合、vPCピアリンクとL3アップリンクが失われます。 vPCのセカンダリボックス(N7KB)で発生した場合は、動作中のプライマリピアが動作中のセカンダリでvPCのポートチャネルとVlanインターフェイスの中断を引き継ぐため、これは問題になりません。 この問題は、動作中のプライマリデバイス(N7KA)でハードウェア障害が発生した場合に発生します。オブジェクトトラッキングを使用しなかった場合は、N7KBおよびVlanインターフェイス上のすべてのvPCポートチャネルが中断されます。 ピアリンクもダウンしています。 このシナリオでは、コアトラフィックをvPC VLANにルーティングする方法はありません。
オブジェクトトラッキングは、運用プライマリでvPCをダウンさせることで回避されるため、コアに残りのアップリンクがあるボックスでVlanインターフェイスとvPCポートチャネルをダウンさせるシナリオでは説明しません。
次に、ethanalyzerを使用したvPCピアキープアライブメッセージを示します。
N7KA# ethanalyzer local interface inband capture-filter "host 1.1.1.1 and host 1.1.1.2" limit-captured-frames 4 Capturing on inband 2013-09-26 20:01:09.629309 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 D estination port: 3200 2013-09-26 20:01:09.954909 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 D estination port: 3200 2013-09-26 20:01:10.639097 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 D estination port: 3200 2013-09-26 20:01:10.954944 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 D estination port: 3200 4 packets captured N7KA# N7KB# ethanalyzer local interface inband capture-filter "host 1.1.1.1 and host 1.1.1.2" limit-captured-frames 4 Capturing on inband 2013-09-26 20:00:22.606593 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 D estination port: 3200 2013-09-26 20:00:22.922517 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 D estination port: 3200 2013-09-26 20:00:23.616427 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 D estination port: 3200 2013-09-26 20:00:23.922557 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 D estination port: 3200 4 packets captured N7KB#
次に、モジュールの電源をオフにして、N7KAのモジュール3障害をシミュレートします。
N7KA# conf t Enter configuration commands, one per line. End with CNTL/Z. N7KA(config)# poweroff mod 3 N7KA(config)# end N7KA# 2013 Sep 26 20:03:25 N7KA %PLATFORM-2-PFM_MODULE_POWER_OFF: Manual power-off of Module 3 from Command Line Interface
Logs:
N7KA:
2013 Sep 26 20:03:28 N7KA-vdc2 %ETHPORT-5-IF_DOWN_INITIALIZING: Interface port-channel1 is down (Initializing) 2013 Sep 26 20:03:28 N7KA-vdc2 %ETHPORT-5-IF_DOWN_MODULE_REMOVED: Interface Ethernet3/3 is down (module removed) 2013 Sep 26 20:03:28 N7KA-vdc2 %ETHPORT-5-IF_DOWN_MODULE_REMOVED: Interface Ethernet3/4 is down (module removed)
2013 Sep 26 20:03:28 N7KA-vdc2 %VPC-2-TRACK_INTFS_DOWN: In domain 102, vPC tracked interfaces down, suspending all vPCs and keep-alive
2013 Sep 26 20:03:28 N7KA-vdc2 %ETHPORT-5-IF_DOWN_NONE: Interface port-channel101 is down (None) 2013 Sep 26 20:03:28 N7KA-vdc2 %ETHPORT-5-IF_DOWN_NONE: Interface port-channel100 is down (None)
2013 Sep 26 20:03:28 N7KA-vdc2 %ETH_PORT_CHANNEL-5-PORT_DOWN: port-channel101: Ethernet4/7 is down 2013 Sep 26 20:03:28 N7KA-vdc2 %ETH_PORT_CHANNEL-5-PORT_DOWN: port-channel100: Ethernet4/6 is down
2013 Sep 26 20:03:28 N7KA-vdc2 %ETH_PORT_CHANNEL-5-FOP_CHANGED: port-channel101: first operational port changed from Ethernet4/7 to none 2013 Sep 26 20:03:28 N7KA-vdc2 %ETH_PORT_CHANNEL-5-FOP_CHANGED: port-channel100: first operational port changed from Ethernet4/6 to none
2013 Sep 26 20:03:28 N7KA-vdc2 %ETH_PORT_CHANNEL-5-PORT_DOWN: port-channel1: Ethernet3/1 is down 2013 Sep 26 20:03:28 N7KA-vdc2 %ETH_PORT_CHANNEL-5-PORT_DOWN: port-channel1: Ethernet3/2 is down
2013 Sep 26 20:03:28 N7KA-vdc2 %ETH_PORT_CHANNEL-5-FOP_CHANGED: port-channel1: first operational port changed from Ethernet3/1 to none 2013 Sep 26 20:03:28 N7KA-vdc2 %ETHPORT-5-IF_DOWN_PORT_CHANNEL_MEMBERS_DOWN: Interface port-channel1 is down (No operational members)
N7KB: 2013 Sep 26 20:02:39 N7KB-vdc2 %ETH_PORT_CHANNEL-5-FOP_CHANGED: port-channel1: first operational port changed from Ethernet3/1 to none 2013 Sep 26 20:02:40 N7KB-vdc2 %ETH_PORT_CHANNEL-5-PORT_DOWN: port-channel1: Ethernet3/2 is down 2013 Sep 26 20:02:40 N7KB-vdc2 %ETHPORT-5-IF_DOWN_LINK_FAILURE: Interface Ethernet3/2 is down (Link failure)
2013 Sep 26 20:02:45 N7KB-vdc2 %VPC-2-PEER_KEEP_ALIVE_RECV_FAIL: In domain 102, VPC peer keep-alive receive has failed
2013 Sep 26 20:02:45 N7KB-vdc2 %ETHPORT-5-IF_DOWN_PORT_CHANNEL_MEMBERS_DOWN: Interface port-channel1 is down (No operational members)
2013 Sep 26 20:02:45 N7KB-vdc2 %ETH_PORT_CHANNEL-5-PORT_DOWN: port-channel1: Ethernet3/1 is down 2013 Sep 26 20:02:45 N7KB-vdc2 %ETHPORT-5-IF_DOWN_LINK_FAILURE: Interface Ethernet3/1 is down (Link failure) 2013 Sep 26 20:02:45 N7KB-vdc2 %ETHPORT-5-IF_DOWN_PORT_CHANNEL_MEMBERS_DOWN: Interface port-channel1 is down (No operational members)
これで、この状態のままになります。 N7KAはvPCプライマリピアですが、N7KBが一時停止しないように、vPCピアキープアライブメッセージのN7KBへの送信を停止します。 N7KBは、アップリンクがアップしている唯一のシステムです。
注:N7KB上のe3/4は、N7KA上の別のVDCに接続しているため、これもダウンしています。 ポイントは、N7KB上でインターフェイスを追跡し、N7KA上でインターフェイスを追跡しないことです。これにより、ピアキープアライブリンク上でN7KBへのメッセージの送信が停止されます。
N7KAからのEthanalyzer出力:
(TRACK_INTFS_DOWN syslogの後、ピアキープアライブをN7KBに送信しなくなり、1.1.1.2のN7KBからしか受信できないことに注意してください)
2013-09-26 20:03:23.684887 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:03:23.685766 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200
2013-09-26 20:03:24.684863 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:03:24.685580 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013 Sep 26 20:03:25 N7KA-vdc2 %$ VDC-2 %$ %PLATFORM-2-PFM_MODULE_POWER_OFF: Manual power-off of Module 3 from Command Line Interface 2013 Sep 26 20:03:25 N7KA %$ VDC-1 %$ %PLATFORM-2-PFM_MODULE_POWER_OFF: Manual power-off of Module 3 from Command Line Interface 2013-09-26 20:03:25.684869 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:03:25.685771 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200
2013-09-26 20:03:26.684835 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:03:26.685716 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200
2013-09-26 20:03:27.690661 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:03:27.691367 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 2013 Sep 26 20:03:28 N7KA-vdc2 %$ VDC-2 %$ %PLATFORM-2-MOD_PWRDN: Module 3 powered down (Serial number JAF1703ALTD) 2013 Sep 26 20:03:28 N7KA %$ VDC-1 %$ %PLATFORM-2-MOD_PWRDN: Module 3 powered down (Serial number JAF1703ALTD) 2013 Sep 26 20:03:28 N7KA-vdc2 %$ VDC-2 %$ %VPC-2-TRACK_INTFS_DOWN: In domain 102, vPC tracked interfaces down, suspending all vPCs and keep-alive 2013-09-26 20:03:28.700594 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:03:29.700538 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:03:30.700603 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:03:31.710665 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:03:32.720601 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:03:33.715295 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:03:34.713112 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:03:35.713177 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200
N7KBからのEthanalyzer出力:
2013-09-26 20:02:36.651007 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:02:36.651534 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:02:37.651053 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:02:37.651644 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:02:38.650967 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:02:38.651579 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:02:39.656523 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:02:39.657500 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 (Here we stop receiving keepalive messages from N7KA or 1.1.1.1): 2013-09-26 20:02:40.666531 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:02:41.666442 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:02:42.666479 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:02:43.676461 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:02:44.686478 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013 Sep 26 20:02:45 N7KB-vdc2 %$ VDC-2 %$ %VPC-2-PEER_KEEP_ALIVE_RECV_FAIL: In domain 102, VPC peer keep-alive receive has failed 2013-09-26 20:02:45.681050 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:02:46.678911 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:02:47.678918 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:02:48.678961 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200
N7KA:
N7KA-vdc2# sh vpc brief Legend: (*) - local vPC is down, forwarding via vPC peer-link vPC domain id : 102 Peer status : peer link is down vPC keep-alive status : peer is alive Configuration consistency status : success Per-vlan consistency status : success Type-2 consistency status : success vPC role : primary Number of vPCs configured : 2 Track object : 1 Peer Gateway : Enabled Peer gateway excluded VLANs : - Dual-active excluded VLANs : - Graceful Consistency Check : Enabled Auto-recovery status : Enabled (timeout = 240 seconds) vPC Peer-link status --------------------------------------------------------------------- id Port Status Active vlans -- ---- ------ -------------------------------------------------- 1 Po1 down - vPC status ---------------------------------------------------------------------- id Port Status Consistency Reason Active vlans -- ---- ------ ----------- ------ ------------ 100 Po100 down success success - 101 Po101 down success success - N7KA-vdc2# show track Track 1 List Boolean or Boolean or is DOWN 3 changes, last change 00:20:50 Track List Members: object 4 DOWN object 3 DOWN object 2 DOWN Tracked by: vPCM 102 Track 2 Interface port-channel1 Line Protocol Line Protocol is DOWN 2 changes, last change 00:20:50 Tracked by: Track List 1 Track 3 Interface Ethernet3/3 Line Protocol Line Protocol is DOWN 4 changes, last change 00:20:50 Tracked by: Track List 1 Track 4 Interface Ethernet3/4 Line Protocol Line Protocol is DOWN 4 changes, last change 00:20:50 Tracked by: Track List 1 N7KA-vdc2#
N7KB:
N7KB-vdc2# sh vpc brief Legend: (*) - local vPC is down, forwarding via vPC peer-link vPC domain id : 102 Peer status : peer link is down vPC keep-alive status : peer is alive Configuration consistency status : success Per-vlan consistency status : success Type-2 consistency status : success vPC role : secondary, operational primary Number of vPCs configured : 2 Track object : 1 Peer Gateway : Enabled Peer gateway excluded VLANs : - Dual-active excluded VLANs : - Graceful Consistency Check : Enabled Auto-recovery status : Enabled (timeout = 240 seconds) vPC Peer-link status --------------------------------------------------------------------- id Port Status Active vlans -- ---- ------ -------------------------------------------------- 1 Po1 down - vPC status ---------------------------------------------------------------------- id Port Status Consistency Reason Active vlans -- ---- ------ ----------- ------ ------------ 100 Po100 up success success 1 101 Po101 up success success 1 N7KB-vdc2# sh track Track 1 List Boolean or Boolean or is UP 2 changes, last change 23:57:10 Track List Members: object 4 DOWN object 3 UP object 2 DOWN Tracked by: vPCM 102 Track 2 Interface port-channel1 Line Protocol Line Protocol is DOWN 2 changes, last change 00:22:04 Tracked by: Track List 1 Track 3 Interface Ethernet3/3 Line Protocol Line Protocol is UP 3 changes, last change 1d00h Tracked by: Track List 1 Track 4 Interface Ethernet3/4 Line Protocol Line Protocol is DOWN 4 changes, last change 00:22:04 Tracked by: Track List 1 N7KB-vdc2#
これで、設定を復元できます。
N7KA# conf t Enter configuration commands, one per line. End with CNTL/Z. N7KA(config)# no poweroff mod 3 N7KA(config)# end N7KA# 2013 Sep 26 20:26:53 N7KA %PLATFORM-2-PFM_MODULE_POWER_ON: Manual power-on of Module 3 from Command Line Interface 2013 Sep 26 20:26:56 N7KA %PLATFORM-2-MOD_DETECT: Module 3 detected (Serial number JAF1703ALTD) Module-Type 10 Gbps Ethernet XL Module Model N7K-M132XP-12L 2013 Sep 26 20:26:56 N7KA %PLATFORM-2-MOD_PWRUP: Module 3 powered up (Serial number JAF1703ALTD) 2013 Sep 26 20:26:56 N7KA %PLATFORM-5-MOD_STATUS: Module 3 current-status is MOD_STATUS_POWERED_UP
N7KA:
N7KA-vdc2# sh vpc brief Legend: (*) - local vPC is down, forwarding via vPC peer-link vPC domain id : 102 Peer status : peer adjacency formed ok vPC keep-alive status : peer is alive Configuration consistency status : success Per-vlan consistency status : success Type-2 consistency status : success vPC role : primary, operational secondary Number of vPCs configured : 2 Track object : 1 Peer Gateway : Enabled Peer gateway excluded VLANs : - Dual-active excluded VLANs : - Graceful Consistency Check : Enabled Auto-recovery status : Enabled (timeout = 240 seconds) vPC Peer-link status --------------------------------------------------------------------- id Port Status Active vlans -- ---- ------ -------------------------------------------------- 1 Po1 up 1 vPC status ---------------------------------------------------------------------- id Port Status Consistency Reason Active vlans -- ---- ------ ----------- ------ ------------ 100 Po100 up success success 1 101 Po101 up success success 1 N7KA-vdc2# sh track Track 1 List Boolean or Boolean or is UP 4 changes, last change 00:01:44 Track List Members: object 4 UP object 3 UP object 2 UP Tracked by: vPCM 102 Track 2 Interface port-channel1 Line Protocol Line Protocol is UP 3 changes, last change 00:01:40 Tracked by: Track List 1 Track 3 Interface Ethernet3/3 Line Protocol Line Protocol is UP 5 changes, last change 00:01:43 Tracked by: Track List 1 Track 4 Interface Ethernet3/4 Line Protocol Line Protocol is UP 5 changes, last change 00:01:44 Tracked by: Track List 1 N7KA-vdc2#
N7KB:
N7KB-vdc2# sh vpc brief Legend: (*) - local vPC is down, forwarding via vPC peer-link vPC domain id : 102 Peer status : peer adjacency formed ok vPC keep-alive status : peer is alive Configuration consistency status : success Per-vlan consistency status : success Type-2 consistency status : success vPC role : secondary, operational primary Number of vPCs configured : 2 Track object : 1 Peer Gateway : Enabled Peer gateway excluded VLANs : - Dual-active excluded VLANs : - Graceful Consistency Check : Enabled Auto-recovery status : Enabled (timeout = 240 seconds) vPC Peer-link status --------------------------------------------------------------------- id Port Status Active vlans -- ---- ------ -------------------------------------------------- 1 Po1 up 1 vPC status ---------------------------------------------------------------------- id Port Status Consistency Reason Active vlans -- ---- ------ ----------- ------ ------------ 100 Po100 up success success 1 101 Po101 up success success 1 N7KB-vdc2# sh track Track 1 List Boolean or Boolean or is UP 2 changes, last change 1d00h Track List Members: object 4 UP object 3 UP object 2 UP Tracked by: vPCM 102 Track 2 Interface port-channel1 Line Protocol Line Protocol is UP 3 changes, last change 00:02:07 Tracked by: Track List 1 Track 3 Interface Ethernet3/3 Line Protocol Line Protocol is UP 3 changes, last change 1d00h Tracked by: Track List 1 Track 4 Interface Ethernet3/4 Line Protocol Line Protocol is UP 5 changes, last change 00:02:09 Tracked by: Track List 1 N7KB-vdc2#
vPCピアキープアライブ障害の詳細:
ピアキープアライブリンクで何が起こるか確認するために、テストを再実行します。
keepliavesを双方向で送信します。現在、すべてがアップ状態で動作しています。
2013-09-26 20:32:12.532319 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:32:12.533083 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200
2013-09-26 20:32:13.532485 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:32:13.533147 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200
N7KAでM132モジュール3を再度シャットダウンします。
2013 Sep 26 20:32:14 N7KA %$ VDC-1 %$ %PLATFORM-2-PFM_MODULE_POWER_OFF: Manual power-off of Module 3 from Command Line Interface 2013 Sep 26 20:32:14 N7KA-vdc3 %$ VDC-3 %$ %PLATFORM-2-PFM_MODULE_POWER_OFF: Manual power-off of Module 3 from Command Line Interface 2013 Sep 26 20:32:14 N7KA-vdc2 %$ VDC-2 %$ %PLATFORM-2-PFM_MODULE_POWER_OFF: Manual power-off of Module 3 from Command Line Interface 2013-09-26 20:32:14.532364 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:32:14.533217 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:32:15.532453 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:32:15.533158 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:32:16.532452 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:32:16.536224 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013 Sep 26 20:32:17 N7KA %$ VDC-1 %$ %PLATFORM-2-MOD_PWRDN: Module 3 powered down (Serial number JAF1703ALTD) 2013 Sep 26 20:32:17 N7KA-vdc3 %$ VDC-3 %$ %PLATFORM-2-MOD_PWRDN: Module 3 powered down (Serial number JAF1703ALTD) 2013 Sep 26 20:32:16 N7KA-vdc2 %$ VDC-2 %$ %VPC-2-TRACK_INTFS_DOWN: In domain 102, vPC tracked interfaces down, suspending all vPCs and keep-alive 2013 Sep 26 20:32:17 N7KA-vdc2 %$ VDC-2 %$ %PLATFORM-2-MOD_PWRDN: Module 3 powered down (Serial number JAF1703ALTD)
N7KB(1.1.1.2)だけがキープアライブメッセージをN7KA(1.1.1.1)に送信していることがわかります。
2013-09-26 20:32:17.549161 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:32:18.549352 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:32:19.549294 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:32:20.549358 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:32:21.549303 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:32:22.549991 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200
N7KBの状態は、ピアキープアライブが失敗したことを示しています。
N7KB-vdc2# sh vpc brief Legend: (*) - local vPC is down, forwarding via vPC peer-link vPC domain id : 102 Peer status : peer link is down vPC keep-alive status : peer is not reachable through peer-keepalive Configuration consistency status : success Per-vlan consistency status : success Type-2 consistency status : success vPC role : secondary, operational primary Number of vPCs configured : 2 Track object : 1 Peer Gateway : Enabled Peer gateway excluded VLANs : - Dual-active excluded VLANs : - Graceful Consistency Check : Enabled Auto-recovery status : Enabled (timeout = 240 seconds) vPC Peer-link status --------------------------------------------------------------------- id Port Status Active vlans -- ---- ------ -------------------------------------------------- 1 Po1 down - vPC status ---------------------------------------------------------------------- id Port Status Consistency Reason Active vlans -- ---- ------ ----------- ------ ------------ 100 Po100 up success success 1 101 Po101 up success success 1 N7KB-vdc2#
次に、N7KAからピアキープアライブメッセージの受信を短時間(90秒)後に再開します。
<snip> 2013-09-26 20:33:42.630255 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:33:43.630199 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:33:44.630263 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:33:45.640201 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:33:46.650262 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:33:47.652445 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:33:47.660318 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:33:48.652768 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:33:48.653347 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:33:49.652409 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:33:49.652705 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:33:50.652423 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:33:50.652773 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:33:51.652401 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:33:51.652839 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200
次に、N7KBの最新の状態(ピアがアクティブであることを示す)が表示されます。
N7KB-vdc2# sh vpc brief Legend: (*) - local vPC is down, forwarding via vPC peer-link vPC domain id : 102 Peer status : peer link is down vPC keep-alive status : peer is alive Configuration consistency status : success Per-vlan consistency status : success Type-2 consistency status : success vPC role : secondary, operational primary Number of vPCs configured : 2 Track object : 1 Peer Gateway : Enabled Peer gateway excluded VLANs : - Dual-active excluded VLANs : - Graceful Consistency Check : Enabled Auto-recovery status : Enabled (timeout = 240 seconds) vPC Peer-link status --------------------------------------------------------------------- id Port Status Active vlans -- ---- ------ -------------------------------------------------- 1 Po1 down - vPC status ---------------------------------------------------------------------- id Port Status Consistency Reason Active vlans -- ---- ------ ----------- ------ ------------ 100 Po100 up success success 1 101 Po101 up success success 1 N7KB-vdc2#