Cisco Cisco Unified Operations Manager 8.0 White Paper
© 2012 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information.
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PTADefaultSettings_cs.xml has default data settings.
PTADefaultSettings_vhm.xml has default voice health settings.
PTADefaultSettings_gsu.xml has default voice utilization settings.
Trap Receiving and Forwarding
Trap receiving and forwarding are configured on the system preferences page (Administration > Miscellaneous
> Preferences).
This feature should not be confused with SNMP notifications. This feature is to forward traps to a manager of
managers.
SRST Monitoring
Survivable Remote Site Telephony monitoring is achieved by configuring the SAA jitter test between the source
router (Head Office Router) and the target router (Branch Office Router) configured for SRST.
Setting Up and Managing SRST Tests
Survivable Remote Site Telephony tests are only configurable on SRST devices. This test will not appear on other
device types. You can access SRST tests from Administration > SRST Poll Setting.
SRST tests use a ping, originated by an IP SLA device to the SRST gateway device. Also, Operations Manager
checks the status of the SRST phone. If the ping to the SRST gateway fails or the SRST phone becomes
unregistered from Cisco Unified Communications Manager, Operations Manager determines the branch office to
be in SRST mode and displays a list of Cisco IP phones that are in SRST mode on phone reports. When the WAN
link is up, Operations Manager generates an SRSTEntered event.
When the WAN link is up and all phones in the branch office are unregistered with the central Cisco Unified
Communications Manager, Operations Manager generates an SRSTSuspected event after all SRST phones
remain unregistered for two IP phone move tracking cycles. The default IP phone move tracking cycle is 5
minutes.
When creating an SRST test, the IP SLA device should be the Cisco IOS device closest to the Cisco Unified
Communications Manager serving that SRST remote office, preferably on the same subnet as the Cisco Unified
Communications Manager. The destination router is the SRST gateway. Make sure to choose an SRST remote
office phone. You can use the IP phone report to select the phone.
Best Practices
Server Maintenance
A test with a 16-hour polling cycle and a 1-minute sampling interval uses approximately 60 to 100 KB per day. A
path echo test with a 16-hour polling cycle, a 1-minute sampling interval, and 12 hops uses approximately 1.2 MB
per day.
Disabling Hyperthreading
Hyperthreading may affect inventory collection and device rediscovery performance, as there are many processes
and threads involved in these tasks in Operations Manager, leading to an extremely high rate of context switches.
Consequently, as the processor switches from one hyperthread to another, cache lines may get invalidated too
quickly and too frequently, causing overall degradation in CPU performance.