Chapter 1
Overview
Understanding How the DPA 7630/7610 Works
1-8
Cisco DPA 7630/7610 Voice Mail Gateways Administration Guide
78-11069-03
Cisco CDP MIB
Cisco Discovery Protocol (CDP) is a method that Cisco devices use to advertise
their presence and to discover information about other nearby devices. The
DPA 7630/7610 implements all objects in this MIB with the exception of
“cdpGlobalRun.” This object returns “true” when read, and cannot be written
using SNMP.
Cisco Process MIB
This MIB describes the processes currently running on the device. However,
because the DPA 7630/7610 has threads, rather than processes, running on it the
MIB is implemented with the following caveats:
•
The amount of memory allocated is not recorded on a per-thread basis.
Therefore, cpmProcExtMemAllocated and cpmProcExtMemFreed are
returned as 0.
•
All threads run at the same priority. Therefore, for every process
cpmProcExtPriority will be returned as “normal.”
•
It is not possible to change a process’s priority so attempts to write
“cpmProcExtPriority” are unsuccessful.
Calista DPA MIB
The DPA 7630/7610 supports an additional DPA-specific Cisco MIB in version
1.2(1) and later. The MIB OID is:
CALISTA-DPA-MIB.
For an explanation of this MIB, refer to the SNMP v2 MIBs available at the
following location:
http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml
Understanding How the DPA 7630/7610 Works
The DPA 7630/7610 functions by emulating digital phone or PBX systems. This
capability allows it to appear like these devices to Cisco CallManager, Octel,
Definity, and Meridian 1 systems.
