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Several resources in Internet were unreachable

Publication Date:  2014-05-19 Views:  19 Downloads:  0
Issue Description

Several resources in Internet is unreachable.

From normal NE:

<NE40E-2>ping -a A.B.C.D X.Y.Z.W

  PING X.Y.Z.W: 56 data bytes, press CTRL_C to break

    Reply from X.Y.Z.W: bytes=56 Sequence=1 ttl=250 time=82 ms

    Reply from X.Y.Z.W: bytes=56 Sequence=2 ttl=250 time=83 ms

    Reply from X.Y.Z.W: bytes=56 Sequence=3 ttl=250 time=85 ms

    Reply from X.Y.Z.W: bytes=56 Sequence=4 ttl=250 time=82 ms

    Reply from X.Y.Z.W: bytes=56 Sequence=5 ttl=250 time=83 ms





From problem NE:

          <NE40E-1>ping -a A.B.C.E X.Y.Z.W

  PING X.Y.Z.W: 56 data bytes, press CTRL_C to break

    Request time out

    Request time out

    Request time out

    Request time out

 

--- X.Y.Z.W ping statistics ---

4 packet(s) transmitted

0 packet(s) received

100.00% packet loss


Handling Process
I checked traffic path accroding to topology provided by customer.


Traceroute showed that for different servers in Internet different paths were chosen. All pathes passed through the same device but different interfaces and one of them was damaged - all traffic passed through this interface was dropped or damaged.
Root Cause
3rd party router damaged packets.
Solution

Check the problem device.

END