Juniper-故障排查“Framing-error-計數增加問題

Cli_Networks發表於2020-12-01
Error

執行命令"show interfaces extensive"對“Framing errors"進行故障排查；

user@srx>show interface extensive
Physical interface: ge-0/0/0, Enabled, Physical link is Up
Interface index: 134, SNMP ifIndex: 505, Generation: 137
Link-level type: Ethernet, MTU: 1514, Link-mode: Full-duplex, Speed: 1000mbps,
BPDU Error: None, MAC-REWRITE Error: None, Loopback: Disabled,
Source filtering: Disabled, Flow control: Enabled, Auto-negotiation: Enabled,
Remote fault: Online
Device flags : Present Running
Interface flags: SNMP-Traps Internal: 0x0
Link flags : None
CoS queues : 8 supported, 8 maximum usable queues
Hold-times : Up 0 ms, Down 0 ms
Current address: 00:26:88:eb:62:c0, Hardware address: 00:26:88:eb:62:c0
Last flapped : 2012-06-04 14:39:14 UTC (00:35:10 ago)
Statistics last cleared: Never
Traffic statistics:
Input bytes : 30972 0 bps
Output bytes : 0 0 bps
Input packets: 427 0 pps
Output packets: 0 0 pps
Input errors:
Errors: 0, Drops: 0, Framing errors: 156, Runts: 0, Policed discards: 0,
L3 incompletes: 0, L2 channel errors: 0, L2 mismatch timeouts: 0,
FIFO errors: 0, Resource errors: 0
Output errors:
Carrier transitions: 1, Errors: 0, Drops: 0, Collisions: 0, Aged packets: 0,
FIFO errors: 0, HS link CRC errors: 0, MTU errors: 0, Resource errors: 0

“Framing errors"是由於接收到的資料包攜帶有無效的FCS( frame checksum)， 這典型是個物理問題（如Cable、壞的介面、壞的網路介面卡），但也可以可能是不匹配的雙工。

故障排查步驟：

  1. 檢查裝置兩邊的雙工設定模式，確保使用全雙工

  2. 更換一條好的Cable來排查壞或受損的Cable問題

  3. 更換一個新的埠來排查NIC Card的問題

如果執行以上操作步驟之後，問題仍然存在，此時需要檢視對端裝置的介面情況。

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