Can arp requests cause latency issues?
Hi,
Recently, I started using comcast as my internet provider. I haven't bought a router, yet. I am connecting my laptop to their modem through cable. The bandwidth is pretty good, but I'm having issues with long latency. The other day I noticed that there's a lot of network activity on my computer, even though I wasn't using any internet based application. After capturing packets using wireshark, I saw a lot of arp requests from different computer entering my computer. I was wondering if anyone knows whether or not my long latency issue is related to receiving broadcasted arp requests? Thanks in advance. |
Quote:
Probably not. To confirm post some of the wireshark traces please. More likely to cause delays are DNS lookups. |
Here is some of wireshark traces"
Code:
"No.","Time","Source","Destination","Protocol","Info" Yes, there's a huge delay on DNS lookups. When I go to gmail.com, it takes forever to look up gmail, and then it takes another time to find mail.google.com to redirect me to it. Edit: I think it's normal for a computer to receive so many ARP requests if it's directly connected to the cable modem. I also think getting a router will decrease the DNS lookup time, as most likely it will contain a DNS server. I'm not sure about this one till I test it. |
adblock plus is your friend.
Quote:
Quote:
Quote:
What I find does help is the firefox addon adblock plus. I find that 90% of the slow DNS lookups are ad servers. Soon as I see firefox freezing up I open up adblocks blocking list and block likely looking ad urls. Bang. Problem goes away forever. |
All times are GMT -5. The time now is 05:07 PM. |