Alcatel-Lucent AOS-W 6.5.3.x - Page 843

Information Description My Values
For SNMPv3
If you select SNMPv3, you must enter values for the following para-
meters:
n User name : A string representing the name of the SNMP user.
n Authentication password: Authentication key for use with the
SHA authentication protocol.
n privacy password: Privacy key for encrypted messages.
n NTP server: If the switch is not already configured to use an
NTP server, enter the IP address of an NTP server.
Syslog
Syslog messages are disabled by default. Use the Syslog section of
the wizard to enable syslog messages, and define the syslog cat-
egory, syslog facility levels (local0-local7) and syslog severity levels
(debug-emergency) for messages from the switch. By default,
OmniVista syslog messages sent at the error severity level.
The possible syslog categories are as follows:
n ap-debug
n arm-user-debug
n network
n security
n system
n user
n user-debug
n wireless
AMON Message Size Changes on the Switch
Data communication between Alcatel-Lucent switches and OmniVista servers has shifted from the SNMP
model to the faster, more reliable, and scalable AMON model. Though the SNMP model can still be used to
communicate data, users generally encounter delayed OmniVista updates and high switch and process CPU
usage.
The AMON packet size has been capped at a default value of 1400 bytes to reduce the amount of
fragmentation and message loss that typically occurs in larger packet sizes, which can force customers to fall
back to the SNMP model. Message size has been capped at 1400 bytes to allow for the addition of AMON
headers and PAPI/UDP/IP headers. Each packet only contains one message to further reduce the amount of
overall message loss, as the loss of even a single fragment can render an entire message invalid.
The AMON packet size can be modified using the following CLI command:
(host)(config) #amon msg-buffer-size <msg-buffer-size>
With the additional message load due to the smaller packet size and 1:1 message to packet ratio, output has
also been increased from 10 second intervals to 1 second intervals to distribute packets more evenly, helping
maintain a more stable and less congested traffic flow.
AMON Source IPAddress
Starting with AOS-W 6.5.3.0, users can specify the source IP address of AMON packets emitted from the
switch. The source IP address is set globally, meaning all management servers configured on the switch receive
AMON packets from the same source VLAN interface.
AOS-W 6.5.3.x | User Guide Management Access | 843