Network Devices - Alcatel-Lucent 5620 Troubleshooting Manual

Procedure 10-11 Problem: Slow or failed resynchronization with

network devices

When 5620 SAM performance is slow, especially when performing network device
resynchronizations, SNMP and IP performance along the in-band or out-of-band
interfaces between the network device and the 5620 SAM server may be the problem.
Check the following:
1
2
Alcatel-Lucent 5620 Service Aware Manager, Release
3HE 05723 AAAD TQZZA Edition 01
configuration of the LAN switch port and the 5620 SAM PC or workstation port
•
match
configuration of the LAN switch port and the network device management
•
ports match
mediation policy SNMP timeout and retry values are sufficient to allow the
•
transfer of data between network devices and the 5620 SAM
Ensure that port configurations are compatible for the 5620 SAM server, the
network device management ports, and the LAN switch. This is normally done by
configuring auto-negotiation between the platforms, but your network may
require more specific configuration.
Check whether all data is being transferred between the network device in-band
management port and the 5620 SAM server.
i Open a Telnet or SSH session to the device from the 5620 SAM.
ii Check statistics on the in-band management port of the device:
# monitor port 1/2/3
Check the output for the following.
errors that may indicate a communication problem with the a LAN switch.
•
Over each time interval, is the number of input and output packets
•
constant? This may indicate intermittent traffic.
Are there more input packets or octets being transferred than output
•
packets or octets? This may indicate a unidirectional traffic problem.
The types of error messages displayed determine the action to take.
For failure errors, consider increasing the SNMP timeout value
•
For collision errors, consider increasing the SNMP retry value
•
iii Check the mediation policy for the device using the 5620 SAM client GUI.
Check the SNMP timeout and retry value for the mediation policy.
If the output of step
SNMP timeout value and perform step
When the output of step
the default SNMP number of retries value, then retest to see if
resynchronizations are more reliable. Increasing the number of retries
increases the likelihood that an SNMP packet is not dropped due to collisions.
Troubleshooting Guide
10 — Troubleshooting 5620 SAM server issues
ii indicates failures, consider increasing the default
ii again.
ii indicates frequent collisions, consider increasing
8.0 R4 Aug 2010
10-13