Quantcast
Viewing all articles
Browse latest Browse all 4945

8.3.1 using wrong lif for traceroutes

Seems like the 'net traceroute' command is broken in three ways:

 

1. Doesn't use the lif specified on the command line (i.e. -lif <lifname>)

2. Doesn't use the routing table to select the correct route - simply uses the default route in all cases.

3. Doesn't hit the destination I specified!!

 

Can anyone replicate this behavior?

 

fcnascl02::> net route show -vserver fcnascl02                                                               
  (network route show)
Vserver             Destination     Gateway         Metric
------------------- --------------- --------------- ------
fcnascl02
                    0.0.0.0/0         10.144.80.1     10
                    10.18.240.32/27   10.146.240.33   20
                    10.146.240.32/27  10.146.240.33   10  <--- Should be using this route because it is most specific


fcnascl02::> net int show -role intercluster -vserver fcnascl02
  (network interface show)
            Logical    Status     Network            Current       Current Is
Vserver     Interface  Admin/Oper Address/Mask       Node          Port    Home
----------- ---------- ---------- ------------------ ------------- ------- ----
fcnascl02
            fcnas04n0_snapmirror-n0-757
                         up/up    10.146.240.52/27   fcnas04n0     a0a-757 true  <--- lif specified in the command below
            fcnas04n1_snapmirror-n1-757
                         up/up    10.146.240.53/27   fcnas04n1     a0a-757 true


fcnascl02::> net traceroute -lif fcnas04n0_snapmirror-n0-757 -vserver fcnascl02 -destination 10.146.240.44 <-- same subnet
  (network traceroute)
traceroute to 10.146.240.44 (10.146.240.44) from 10.146.240.52, 64 hops max, 44 byte packets
 1  fcnas05n0-e0m (10.144.80.97)  0.300 ms  0.234 ms  0.177 ms  <--- WRONG destination lif shown - is it even using my destination?

 

 

fcnascl02::> net traceroute -node fcnas04n0 -vserver fcnascl02 -destination 10.146.240.44  <--- no lif selected, should use routing table
  (network traceroute)
traceroute to 10.146.240.44 (10.146.240.44), 64 hops max, 44 byte packets
 1  fcnas05n0-e0m (10.144.80.97)  0.371 ms  0.264 ms  0.232 ms  <--- WRONG destination lif shown again

 

 

 

This issue is impacting my ability to troubleshoot a cluster peer issue.


Viewing all articles
Browse latest Browse all 4945

Trending Articles