
PMP Synchronization Solutions User Guide
Configuring a CMM4
PMP-0297 007v001 (January, 2017)
3-38
The SNMP tab provides the following parameters.
Table 18 SNMP tab attributes
Attribute
Meaning
Community String
Specify a control string that allows Prizm or a Element Management
System (EMS) to access the CMM4 via SNMP. No spaces are allowed in
this string. The default string is Canopy. The value is clear text and is
readable by a packet monitor. You can attain additional security by
configuring the Accessing Subnet and Read Permissions parameters.
Accessing Subnet
Specify the addresses that are allowed to send SNMP requests to this
CMM4. The EMS must have an address that is among these addresses
(this subnet). You must enter both
•
The network IP address in the form xxx.xxx.xxx.xxx
•
The CIDR (Classless Interdomain Routing) prefix length in the form /xx
For example
•
the /16 in 198.32.0.0/16 specifies a subnet mask of 255.255.0.0 (the first
16 bits in the address range are identical among all members of the
subnet).
•
192.168.102.0/24 specifies that any device whose IP address is in the
range 192.168.102.0 to 192.168.102.254 can send SNMP requests to
the CMM4, presuming that the device supplies the correct Community
String value.
The default treatment is to allow all networks access.
Read Permissions
Select Read Only if you wish to disallow any parameter value changes by
Prizm or an NMS.
Trap Address 1 to 10 Specify the IP address (xxx.xxx.xxx.xxx) of one to ten servers (Prizm or
NMS) to which trap information should be sent. Traps inform the
monitoring systems that something has occurred. For example, trap
information is sent
•
after a reboot of the module.
•
when Prizm or an NMS attempts to access agent information but
either
o
supplied an inappropriate community string or SNMP
version number.
o
is associated with a subnet to which access is disallowed.
Trap Enable for
Sync Status
Variable to enable/disable GPS sync/out-sync traps.