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Packet drop

Packet drop

Alexandr_P
Valued Contributor
Hello, all!

Have below scheme:

d7c8248ec9b646d788a2191852229a69_RackMultipart20161028-5682-56cz4u-Scheme_inline.jpg


When generate 3,2 Gbps AppMix traffic - all work fine.
When generate 2Gbps of HTTP traffic - all work fine.
When increase throughtput of HTTP traffic to 2,2Gbps - packets drops appear on LAG.

d7c8248ec9b646d788a2191852229a69_RackMultipart20161028-35812-ouj1jo-Drops_inline.jpg



But ports utilization at that moment is not so big:

d7c8248ec9b646d788a2191852229a69_RackMultipart20161028-123961-17axcgm-Utilization_inline.jpg



Packets is different and not so little:

d7c8248ec9b646d788a2191852229a69_RackMultipart20161028-113960-14l2d47-Packets_inline.jpg



HTTP is simple:
Client GET -> Server Request with 1024k page

d7c8248ec9b646d788a2191852229a69_RackMultipart20161028-122353-18hbhjz-Request_inline.jpg



Help please to investigate reason of drops.

Thank you!
4 REPLIES 4

Hello, Nikolay!

6c42fccfbca14e4381dd3213c19a2336_RackMultipart20161028-22025-1ldnfep-Burst_inline.jpg



Don't see any big splash.

Thank you!

Bastian_Sprotte
Extreme Employee
can you check if flowcontrol somehow take action,
Bastian

Hello, Bastian!

After:
# disable flow-control rx-pause ports all
# disable flow-control tx-pause ports all

There is no any drops:

023cab34e77a4104a9a8667fac9bbe97_RackMultipart20161028-79840-1nr26h6-NoDrops_inline.jpg



Thank you!
GTM-P2G8KFN