nanog mailing list archives
Re: barak-online.net icmp performance vs. traceroute/tcptraceroute, ssh, ipsec
From: Joe Shen <joe_hznm () yahoo com sg>
Date: Mon, 7 May 2007 15:16:41 +0800 (CST)
I agree with Dale. The problem should be with e2e TCP performance. Maybe there is misconfigured firewall which block SYN or ACK packet. Or, packet larger than 128B is dropped. As you can find in your data, ping and traceroute show different response speed. Maybe you could try layer4 traceroute, and try packet size bigger than 1000Byte. It will show you where the problem may exist. Joe ICMP or traceroute usually use small packet. --- Joe Maimon <jmaimon () ttec com> wrote:
Lincoln Dale wrote:traceroute/tcptraceroute show packet loss and MUCHhigher rtt than thecorresponding direct pings on the reported hopentries.Is this some sort of massaging or plain just"faking it"? Or is suchthings merely net-urban myth?the vast majority of routers on the internetrespond very differently totraffic 'directed at them' as opposed to traffic'routed through them'. Thanks for your reply. I did include icmp echo directly to each hop as a comparison.
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Current thread:
- Re: barak-online.net icmp performance vs. traceroute/tcptraceroute, ssh, ipsec, (continued)
- Re: barak-online.net icmp performance vs. traceroute/tcptraceroute, ssh, ipsec Peter Dambier (May 07)
- Re: barak-online.net icmp performance vs. traceroute/tcptraceroute, ssh, ipsec Jo Rhett (May 07)
- RE: barak-online.net icmp performance vs. traceroute/tcptraceroute, ssh, ipsec Lincoln Dale (May 07)
- Re: barak-online.net icmp performance vs. traceroute/tcptraceroute, ssh, ipsec Min (May 07)
- Re: barak-online.net icmp performance vs. traceroute/tcptraceroute, ssh, ipsec Joe Maimon (May 07)
- Re: barak-online.net icmp performance vs. traceroute/tcptraceroute, ssh, ipsec Joe Maimon (May 07)
- Re: barak-online.net icmp performance vs. traceroute/tcptraceroute, ssh, ipsec Adrian Chadd (May 07)
- Re: barak-online.net icmp performance vs. traceroute/tcptraceroute, ssh, ipsec Joe Maimon (May 07)
- Re: barak-online.net icmp performance vs. traceroute/tcptraceroute, ssh, ipsec Adrian Chadd (May 07)
- RE: barak-online.net icmp performance vs. traceroute/tcptraceroute, ssh, ipsec Lincoln Dale (May 07)
- Re: barak-online.net icmp performance vs. traceroute/tcptraceroute, ssh, ipsec Joe Shen (May 07)
- RE: barak-online.net icmp performance vs. traceroute/tcptraceroute, ssh, ipsec Lincoln Dale (May 07)
- Re: barak-online.net icmp performance vs. traceroute/tcptraceroute, ssh, ipsec Joe Maimon (May 07)