Network Buffer Measurements

Networking, Wireless Routers (802.11 a/b/g/n/ac/ax WiFi), NAT, LAN configuration, equipment, cabling, hubs, switches, and general network discussion
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Kyo1
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Posts: 3
Joined: Mon Mar 10, 2014 4:38 pm

Network Buffer Measurements

Post by Kyo1 »

Hey all,
I've changed my ISP lately and im having 100mbps connection right now.
While running ICSI Netalyzr(http://n3.netalyzr.icsi.berkeley.edu) I received only 1 error and it's the following:
Network buffer measurements (?): Uplink 1000 ms, Downlink is good –
We estimate your uplink as having 1000 ms of buffering. This is quite high, and you may experience substantial disruption to your network performance when performing interactive tasks such as web-surfing while simultaneously conducting large uploads. With such a buffer, real-time applications such as games or audio chat can work quite poorly when conducting large uploads at the same time.
To ensure it's not coming from my router I checked with a different pc using wireless and had no errors at all.
But when I check from this pc which is connected via LAN cable i get this error.
I'm not really experiencing issues at the moment but I would like to know what I can do to solve it.

Is it possible that this error comes from my Ethernet card?
While checking my ethernet card options (Intel 82579V) I Encountered the next configurations:
  • -Interrupt Moderation: Enabled
  • -Jumbo Packet: Disabled
  • -Gigabit Master Slave Mode: Auto Detect
  • -Large Send Offload V2 (Ipv4): Enabled
  • -Large Send Offload V2 (Ipv6): Enabled
  • -Log Link State Event: Enabled
  • -Performance Options:
  • --Adaptive Inter-Frame Spacing: Disabled
  • --Flow Control: Rx & Tx Enabled
  • --Interrupt Moderation Rate: Adaptive
  • --Receive Buffers: 256 <- Maybe I Should Change This?
  • --Transmit Buffers: 512 <- Or This?
  • -Priority & VLAN: Priority & VLAN Enabled
  • -Received Side Scaling: Enabled
  • -Receive Side Scaling Queues: 1Queue
  • -TCP/IP Offloading Options:
  • --IPv4 Checksum Offload - Checked
  • --TCP Checksum Offload(IPv4) - Checked
  • --TCP Checksum Offload(IPv6) - Checked
  • --UDP Checksum Offload(IPv4) - Checked
  • --UDP Checksum Offload(IPv6) - Checked
  • -Wait for Link: Auto Detect
  • Link Speed: 100Mbps/Full Duplex
  • -Speed and Duplex Settings: Auto Negotiation
If you require more information let me know,
I will be glad to hear some advice since im not too familiar with this settings.
Thanks ahead,
Kyo.
drbee
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Posts: 3
Joined: Sun Jan 10, 2010 2:35 pm

Post by drbee »

Receive side scaling need to be set at the number of cpu core
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