Issue with exact 50% icmp ping loss
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‎02-29-2016 11:35 AM
Hi Gens,
facing issue with Extreme switches X460 .
As when i am pinging the other node onm vip from the extreme l3 switch
getting the ping response with every alternate ping loss like below
64 bytes from x.x.x.x: icmp_seq=0 ttl=64 time=1.195 ms
64 bytes from x.x.x.x: icmp_seq=2 ttl=64 time=0.963 ms
64 bytes from x.x.x.x: icmp_seq=4 ttl=64 time=1.237 ms
64 bytes from x.x.x.x: icmp_seq=6 ttl=64 time=1.030 ms
and the seq are even for one switch and with other it is odd like below.
64 bytes from x.x.x.x: icmp_seq=1 ttl=64 time=1.105 ms
64 bytes from x.x.x.x: icmp_seq=3 ttl=64 time=0.863 ms
64 bytes from x.x.x.x: icmp_seq=5 ttl=64 time=1.155 ms
64 bytes from x.x.x.x: icmp_seq=7 ttl=64 time=1.475ms
is this the issue with the switch or it is the expected behavior.
help me how to troubleshoot it .
Regards
Raj
facing issue with Extreme switches X460 .
As when i am pinging the other node onm vip from the extreme l3 switch
getting the ping response with every alternate ping loss like below
64 bytes from x.x.x.x: icmp_seq=0 ttl=64 time=1.195 ms
64 bytes from x.x.x.x: icmp_seq=2 ttl=64 time=0.963 ms
64 bytes from x.x.x.x: icmp_seq=4 ttl=64 time=1.237 ms
64 bytes from x.x.x.x: icmp_seq=6 ttl=64 time=1.030 ms
and the seq are even for one switch and with other it is odd like below.
64 bytes from x.x.x.x: icmp_seq=1 ttl=64 time=1.105 ms
64 bytes from x.x.x.x: icmp_seq=3 ttl=64 time=0.863 ms
64 bytes from x.x.x.x: icmp_seq=5 ttl=64 time=1.155 ms
64 bytes from x.x.x.x: icmp_seq=7 ttl=64 time=1.475ms
is this the issue with the switch or it is the expected behavior.
help me how to troubleshoot it .
Regards
Raj
8 REPLIES 8
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‎02-29-2016 12:25 PM
Hi
we have two routes towards VIP
#oa 10.196.x.x/32 10.196.a.b 5 UG-D---um--f- route_1_1 21d:9h:52m:40s
#oa 10.196.x.x/32 10.196.a.c 5 UG-D---um---- route_2_1 21d:9h:52m:40s
both have same metric of 5.
and if i ping from the other node then the output is same as alternate ping goes miss .
so from both the side i am facing the same issue.
ospf is working between the node and the two switches
Regards
Raj
we have two routes towards VIP
#oa 10.196.x.x/32 10.196.a.b 5 UG-D---um--f- route_1_1 21d:9h:52m:40s
#oa 10.196.x.x/32 10.196.a.c 5 UG-D---um---- route_2_1 21d:9h:52m:40s
both have same metric of 5.
and if i ping from the other node then the output is same as alternate ping goes miss .
so from both the side i am facing the same issue.
ospf is working between the node and the two switches
Regards
Raj
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‎02-29-2016 12:01 PM
wait let me share that 
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‎02-29-2016 11:49 AM
Hi Raj, would be great to have some network diagram to understand the traffic directions and what's configured between them (LAG, MLAG, VRRP, etc).
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‎02-29-2016 11:40 AM
this sort of thing is often incorrectly configured LAGs - are you using port sharing? is it working correctly at both ends?
