Diameter Signaling Router (DSR): Unable To SSH To MP Blade Due To Missing Default Route

Asset ID:	1-72-2387144.1
Update Date:	2018-04-18
Keywords:

Solution Type Problem Resolution Sure

Solution 2387144.1 : Diameter Signaling Router (DSR): Unable To SSH To MP Blade Due To Missing Default Route

Applies to:

Oracle Communications Diameter Signaling Router (DSR) - Version DSR 7.3.0 and later
Tekelec

Symptoms

Unable to SSH to MP blade from local computer using putty or other terminal emulators, however SSH to MP can be done from NOAM and other blades.

Changes

Cause

Default route was missing in the route table on the MP blade, however on NOAM GUI under Configuration -> Network -> Routes the default route was present for the concerned MP blade.

In the below logs ideally there should be a default entry at the end.

[admusr@MP ~]$ route

Kernel IP routing table

Destination Gateway Genmask Flags Metric Ref Use Iface

x.x.x.x * a.b.c.d U 0 0 0 xmi

y.y.y.y * a.b.c.d U 0 0 0 imi

z.z.z.z * a.b.c.d U 0 0 0 control

[admusr@MP ~]$

Solution

Below command cab executed to refresh the network settings on the MP and allows the default route to be deployed on the server.

# service network restart

Note: this command may be service impacting as it restarts all network interfaces on the blade, it is recommended to execute this command in a maintenance window and under Oracle TACs guidance.

References

<NOTE:2205420.1> - Diameter Signaling Router (DSR) Why Connections Went Unavailable After "network" Service Restart on MP servers

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