Congestion On 2 Linksets Toward The Same Destination

Asset ID:	1-72-2177894.1
Update Date:	2016-09-06
Keywords:

Solution Type Problem Resolution Sure

Solution 2177894.1 : Congestion On 2 Linksets Toward The Same Destination

Applies to:

Oracle Communications EAGLE (Hardware) - Version EAGLE 3x.x and later
Information in this document applies to any platform.

Symptoms

Congestion events are observed on 2 linksets toward the same far end
The links are bouncing every minute

Cause

The far end is having congestion

Many "Link Signaling Busy" messages are regularly received :

> pass:loc=2115:cmd="linkinfo -l a10"

eagle 16-08-01 15:13:35 BST EAGLE5 45.0.1-64.70.35
  16-08-01 15:10:38.215 M2PA_LSR_RECEIVED
  16-08-01 15:10:39.290 M2PA_LSB_RECEIVED
  16-08-01 15:10:39.390 M2PA_LSB_RECEIVED
  16-08-01 15:10:39.490 M2PA_LSB_RECEIVED
  16-08-01 15:10:39.595 M2PA_LSB_RECEIVED
  16-08-01 15:10:39.695 M2PA_LSB_RECEIVED

Regular UAM 0241 are received :

****16-08-01 15:17:07****
  8493.0241 ** SLK 2215,A11 REPT-LKF: rcvd remote out of service
  ****16-08-01 15:17:00****
  8451.0200 SLK 2215,A11 RCVRY-LKF: link available
  ****16-08-01 15:16:52****
  8399.0241 ** SLK 2215,A10 REPT-LKF: rcvd remote out of service
  ****16-08-01 15:16:51****
  8388.0200 SLK 2215,A10 RCVRY-LKF: link available
  ****16-08-01 15:16:49****
  8376.0241 ** SLK 2115,A10 REPT-LKF: rcvd remote out of service

Some remote congestion had been seen during the night :

****16-08-01 00:00:29****
7961.0216 ** SLK 2115,A11 REPT-LKF: remote congestion timeout
...

eagle 16-08-01 03:49:11 BST EAGLE5 45.0.1-64.70.35
** 9187.0216 ** SLK 2115,A11 ygl REPT-LKF: remote congestion timeout
SLC=00 FECLLI=ygl CLASS=IPVHSL

Solution

There is nothing to do on the Eagle side. The issue has been solved on the far end by increasing the MAXSLKTPS capacity of the links which was too low for the sudden experienced peak of traffic.

Attachments

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