Brocade Fabric OS Command Reference (Supporting Fabric OS v7.3.0) - Manual (Page 1093)

Fabric OS Command Reference 1063
53-1003131-01
snmpConfig
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When new passwords are entered for any user entry, a new authKey and privKey are generated. The
new passwords must be updated on the client (e.g., MIB browser) as well. AuthKey and privKey can
also be updated with the delta key mechanism provided by the SNMPv3 protocol.
The system prompts for password confirmation if a protocol other than NoAuth/NoPriv is selected.
Protocol passwords must be between 1 and 20 characters.
In order for an SNMP management station to receive SNMPv3 traps generated by the agent, the
administrator must configure a trap recipient value to correspond to the IP address of the management
station. In addition, the trap recipient must pass the ACL check as described in the Access Control
section. The trap recipient must be associated with one of the six users of SNMPv3 and trap severity
level. The factory default value for the SNMPv3 trap recipient of each user is 0.0.0.0.
Access Control Configuration Parameters
The ACL check is as follows: there are six ACLs to restrict SNMP get, set, and trap operations to hosts
under an host-subnet-area. The host-subnet-area is defined by comparing nonzero IP octets. For
example, an ACL of 192.168.64.0 enables access by any hosts that start with the specified octets. The
connecting host is enabled to set each host-subnet-area to be read-write or read-only. The closest match
out of six entries is given access. The ACL check is turned off when all six entries contain 0.0.0.0. The
default values of all six entries are 0.0.0.0. For IPv6 subnets, the format is specified by an IPv6 address
followed by the number of fixed bits in the address.
MIB Capability Configuration Parameters
The mibCapability option turns certain MIBS and associated SNMP traps on or off. If a specific MIB is
disabled, the corresponding traps also are disabled. If any trap group is disabled, the corresponding
individual traps are also disabled.
In Fabric OS v6.4.0 and later, SNMP Traps are identified by their bit mask and can be read directly from
the switch configuration. The MIB and trap status (enabled or disabled) status is recorded in a 64- bit
counter. The last bit (bit 0) is reserved for the MIB and the remaining bits are reserved for the traps of that
MIB. The trap's position is allocated based on the last ID of the trap OID. For example, the last ID of the
swEventTrap is 5 so its position will be 5th from the right. The following is a listing of valid SNMP traps
and their bit masks:
MIB Trap Name and position Bit mask Default
____________________________________________________
FE-MIB 0x1 Enabled
____________________________________________________
SW-MIB 0x1 Enabled
swFault (1) 0x2 Enabled
swSensorScn (2) 0x4 Enabled
swFCPortScn (3) 0x8 Enabled
swEventTrap (4) 0x10 Enabled
swFabricWatchTrap (5) 0x20 Enabled
swTrackChangeTraps(6) 0x40 Enabled
swIPv6ChangeTrap (7) 0x80 Enabled
swPmgrEventTrap (8) 0x100 Enabled
swFabricSegmentTrap (9) 0x200 Disabled
swFabricReconfigTrap (10) 0x400 Disabled
swExtTrap (11) 0x800 Disabled
swStateChange (12) Disabled
swMovePort (13) Disabled
swBrcdGenericTrap (15) Disabled
swDeviceStatusTrap (16) Disabled
swZoneConfigChangeTrap (17) Disabled
____________________________________________________
FA-MIB 0x1 Enabled
connUnitStatusChange(1) 0x2 Enabled
connUnitAddedTrap (2) N/A Enabled
connUnitDeletedTrap (3) 0x8 Enabled
connUnitEventTrap (4) 0x10 Enabled