AudioCodes MSBR Series User Manual

CHAPTER2 SNMP Trap Alarms
MSBR | SNMP Alarms
Alarm acBoardFatalError
string describing the
fatal error"
if active.
2. Contact AudioCodes support,
which will want to collect
additional data from the
device and perform a reset.
Stays 'Critical'
until reboot. A
'Clear' trap is
not sent.
After fatal
error
-
No Reply From DNS Server Alarm
Table 2-10: acNoReplyFromDNSServerAlarm
Alarm acNoReplyFromDNSServerAlarm
OID 1.3.6.1.4.1.5003.9.10.1.21.2.0.155
Description The alarm is sent when the device queries a DNS server and no
reply is received. DNS queries are done for Proxy Sets that are
configured with FQDNs. The alarm indicates the IP Interface
(configured in the IP Interfaces table) on which the query was sent.
The device periodically (configured by [ProxyIPListRefreshTime])
queries the DNS server to resolve FQDNs, which refreshes the
Proxy Set’s list of DNS-resolved IP addresses. The device caches
(stores) the last successful DNS resolution and if the DNS server
subsequently goes offline when the device needs to do a DNS
refresh query, instead of taking the Proxy Set offline, the device
reuses the cached DNS-resolved addresses. In this scenario, the
device continues sending DNS queries every 10 seconds. The
device clears every entry in the cache 30 minutes after its time-to-
live (TTL) value expires. However, if the DNS server is still offline
and the device has deleted the cache, the device takes the Proxy
Set offline.
Default Severity Minor
Source Varbind Text Board#1/ipInterface#<IP Interface Index>
Event Type communicationsAlarm
Probable Cause communicationsSubsystemFailure
Severity Condition Text Corrective Action
Minor No response from
DNS server.
"DNS server not
responsive"
Make sure that the
configured IP
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AudioCodes MSBR Series Specifications

General

Brand	AudioCodes
Model	MSBR Series
Category	Security System
Language	English