About grant.walker

grant.walker · 10-03-2011

Has anybody come across the following issue before :We are running a GRE and have set MTU at 1500. When you ping across the tunnel you get a single 1500 MTU reply. ie you cannot see the fragmentation.When running an integrity check across this link, ...

grant.walker · 10-04-2011

Hi MilanWe have shipped a CIsci 2921 to see if this assists in correcting the issue, failing which we will look at a 3945.I also beleived it to be BGP updates becasue I do recall that BGP Scanner used to run every 60 seconds, but not sure if that is ...

grant.walker · 10-03-2011

Hello PeterIt is a pure GRE. The MTU is 1480 from the underlying providor. It is a L3 medium, thus the initial requirement to establish the GRE.There is no special traffic at all, just the testing program which works perfectly at both 1476 and 1480 ...

grant.walker · 10-03-2011

Hello Peter,We set the df bit and it works well at 1500.The application requires an unfragemented packet and the application works, however we see a data loss spike every 60 seconds.RegardsGrant

Member Since	‎10-03-2011 01:18 PM
Date Last Visited	‎08-18-2017 03:54 AM
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1500 MTU across a GRE creating Data Loss/CPU Spikes

Re: 1500 MTU across a GRE creating Data Loss/CPU Spikes

1500 MTU across a GRE creating Data Loss/CPU Spikes

1500 MTU across a GRE creating Data Loss/CPU Spikes