Logs And Alarms - Nortel 5100 Release Note

•
•
•
•
Maxint is defined as 2 147 483 647.
External SIP proxies can generate significant messaging traffic, potentially
exceeding the threshold. To avoid blocking these messages, the
administrator configures a list of trusted nodes. The IP addresses for these
trusted nodes are configured at a system-wide level, using the System
Management Console.

Logs and alarms

When a lockout condition occurs, a log is generated.
Copyright © 2007, Nortel Networks
.
— critical alarm (third value) default is 100%
MaxAttemptsPerInterval: The number of new HTTP transactions per
sample interval.
— range: 1 to maxint
— Session Manager default: 20
— other network element default: 5
SampleInterval: The sample interval in seconds, used in the transaction
rate calculation.
— range: 1 to maxint
— default: 5 seconds
BucketCapacityFactor: Used to determine the size of the token bucket
(BucketCapacityFactor * MaxAttemptsPerInterval = bucket size).
— range: 1 to maxint
— Session Manager default: 165
— other network elements default: 1
— Increase this value to accommodate occasional spikes in above
the allowed sustained rate.
MaxNumSuspects: The maximum number of source IP addresses that
can be monitored at any given time.
— range: 1 to maxint
— default: 1000
Nortel Multimedia Communication Server 5100
New in this Release
NN42020-404 03.08 Standard
Release 4.0 11 September 2007
SIP Denial of Service mitigation 95