丟棄統計

Argo 會依原因統計每次丟棄事件。這是區分「封包從未到達」與「封包已到達但被刻意丟棄」的最快方式。

`dropstats-non-zero`

建議優先使用此指令。它只顯示已觸發的計數器，僅有數行，而非六十五行。

{"command":["dropstats-non-zero"]}

IF RX Discard                 11
Invalid ARP                   12

Flow Action Drop              121
Flow Unusable (Eviction)      229


Discards                      19
Cloned Original               217


Invalid Packets               945

Misc                          333
Invalid Source                6
Invalid VLAN                  4

`dropstats`

包含所有計數器，含數值為零的項目。

{"command":["dropstats"]}

Invalid IF                    0
Trap No IF                    0
IF TX Discard                 0
IF Drop                       0
IF RX Discard                 11
Invalid ARP                   12

Flow Unusable                 0
Flow No Memory                0
Flow Table Full               0
Flow NAT no rflow             0
Flow Action Drop              121
Flow Action Invalid           0
Flow Invalid Protocol         0
Flow Queue Limit Exceeded     0
New Flow Drops                0
Flow Unusable (Eviction)      229
Flow Resource Exhaustion      0

Original Packet Trapped       0

Discards                      19
TTL Exceeded                  0
Mcast Clone Fail              0
Cloned Original               217

Invalid NH                    0
Invalid Label                 0
Invalid Protocol              0
Rewrite Fail                  0
Invalid Mcast Source          0
Packet Loop                   0

Push Fails                    0
Pull Fails                    0
Duplicated                    0
Head Alloc Fails              0
PCOW Fails                    0
Invalid Packets               945

Misc                          333
Nowhere to go                 0
Checksum errors               0
No Fmd                        0
Invalid VNID                  0
Fragment errors               0
Invalid Source                6
Jumbo Mcast Pkt with DF Bit   0
No L2 Route                   0
Memory Failures               0
Fragment Queueing Failures    0
Policer Drops                 0
ACL Drops                     0
Invalid VLAN                  4
VLAN fwd intf failed TX       0
VLAN fwd intf failed enq      0
Tunnel Level Exceeded         0
Anomaly Packets               0
Denied                        0
SynCookieFail                 0

... [capture trimmed: first 60 of 65 lines]

建議完整閱讀一次，以了解有哪些丟棄原因存在。之後日常使用時，請改用非零版本的指令。