ネットワーク障害時に見るコマンド オートネゴシエーションと実際のリンクアップ状況、Dropパケットの確認
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# show interface show interface Interface ge1 Link is UP Hardware is Ethernet HW addr: ac44.f23c.7475 ifIndex 1, MRU 1522 Speed-Duplex: auto(configured), 1000-full(current) ←注目 Auto MDI/MDIX: on Interface counter: input packets : 2731069 bytes : 598015536 multicast packets: 2754 output packets : 47531103 bytes : 25443897994 multicast packets: 12124203 broadcast packets: 20297143 drop packets : 3481 ←注目 Interface ge2 Link is UP Hardware is Ethernet HW addr: ac44.f23c.7475 ifIndex 2, MRU 1522 Speed-Duplex: auto(configured), 1000-full(current) ←注目 (略) |
コリジョン、エラーカウンタの確認
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#show frame-counter show frame-counter Interface ge1 Ethernet MAC counters: Received: Packets : 2731143 Octets : 598032130 Broadcast packets : 98303 Multicast packets : 2754 Unicast packets : 2630086 Undersize packets : 0 Oversize packets : 0 Fragments : 0 Jabbers : 0 FCS errors : 0 ←注目 RX errors : 0 ←注目 Transmitted: Packets : 47536031 Octets : 25445177751 Broadcast packets : 20301336 Multicast packets : 12124914 Unicast packets : 15109781 TX errors : 0 ←注目 Collisions : 0 ←注目 Drop packets : 3481 ←注目 Received and Transmitted: 64octet packets : 21197125 65-127octet packets : 2464047 128-255octet packets : 608116 256-511octet packets : 12263579 512-1023octet packets : 269448 1024-MAXoctet packets : 13464859 Interface ge2 Ethernet MAC counters: |
リンクアップやリンクダウンのロ …