Cisco ONS 15454 DWDM - SNMP Community Names

18-17
Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
Chapter 18 SNMP
18.8 SNMP Community Names
18.8 SNMP Community Names
Community names are used to group SNMP trap destinations. All ONS 15454 trap destinations can be
provisioned as part of SNMP communities in CTC. When community names are assigned to traps, the
ONS 15454 treats the request as valid if the community name matches one that is provisioned in CTC.
In this case, all agent-managed MIB variables are accessible to that request. If the community name does
not match the provisioned list, SNMP drops the request.
18.9 SNMP in Multishelf Management
When using the dense wavelength division multiplexing (DWDM) multishelf management feature to
subtend shelves from a node controller shelf, SNMP for the subtended shelves must be specially
provisioned. All shelves within a multishelf configuration share the node controller’s ID and IP address.
Thus, the only way to route SNMP messages to or from subtended shelves is by using proxy ARP.
The cerent454MultishelfEnabled object ID (OID) can be used to determine whether the node is single
shelf or multishelf.
To view the OID, use the snmpwalk node IP address ifDescr SNMP command in global configuration
mode. This command output displays the OID as
<interface_name>_x/y/z
where
x = Shelf number (for a multishelf node)
y = Card slot number
z = Card port number.
The following example shows how to obtain the OID using the snmpwalk node IP address ifDescr
SNMP command.
Router(config)# snmpwalk 192.0.2.1 ifDescr
RFC1213-MIB::ifDescr.1 = STRING: "motfcc0"
RFC1213-MIB::ifDescr.6 = STRING: "pdcc0"
RFC1213-MIB::ifDescr.7 = STRING: "pdcc1"
RFC1213-MIB::ifDescr.8 = STRING: "pdcc2"
RFC1213-MIB::ifDescr.9 = STRING: "pdcc3"
RFC1213-MIB::ifDescr.10 = STRING: "pdcc4"
RFC1213-MIB::ifDescr.11 = STRING: "pdcc5"
RFC1213-MIB::ifDescr.12 = STRING: "pdcc6"
RFC1213-MIB::ifDescr.13 = STRING: "pdcc7"
RFC1213-MIB::ifDescr.14 = STRING: "pdcc8"
RFC1213-MIB::ifDescr.15 = STRING: "pdcc9"
RFC1213-MIB::ifDescr.16 = STRING: "pdcc10"
G
(cont.)
(8) cerent454AlarmObjectName The TL1-style user-visible name
that uniquely identifies an object
in the system.
(9) snmpTrapAddress The address of the SNMP trap.
Table 18-8 Supported ONS 15454 SNMPv2 Trap Variable Bindings (continued)
Group
Trap Name(s) Associated
with
Variable
Binding
Number SNMPv2 Variable Bindings Description