CISCOSB-TRUNK-MIB

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Organization: Cisco Small Business

Last Updated: 2006-12-02

Category: Network Interfaces, Vendor: RADLAN/Cisco SB

Description: Manages port-channel (LAG/trunk) group membership, mode, and status on Cisco Small Business switches.

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What Is CISCOSB-TRUNK-MIB?

CISCOSB-TRUNK-MIB is a Cisco Small Business (Radlan-based firmware) proprietary MIB extending the standard IEEE 802.3ad LAG MIB with vendor-specific trunk (link-aggregation) configuration. Its objects cover MIB version, a load-balancing table (forward type, hash layer, used-addresses mode, broadcast type), trunk count/max-ports-per-trunk and trunk-creation-support flags, a creation table (trunk, LACP enable), per-trunk load-balancing override, and a port-LACP table (received/transmitted PDU counts, RX/mux/periodic state, selected/ready/port-moved flags). As a configuration/status MIB it lets an administrator confirm a trunk's load-balancing hash method and watch LACP negotiation state per member port. It is deployed on Cisco Small Business managed switches. Engineers can download the CISCOSB-TRUNK-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCOSB-TRUNK-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

Cisco Small Business managed switches

Monitoring Examples

An administrator checks rlDot3adAggPortLacpMuxState to confirm a LAG member port has completed LACP negotiation on a Cisco Small Business switch.

What Can Be Monitored

trunk load-balancing configuration and per-port LACP state

Imported Objects

From CISCOSB-MIB

switch001

MODULE-IDENTITY

From IEEE8023-LAG-MIB

dot3adAggIndex	OBJECT-TYPE
dot3adAggPortIndex	OBJECT-TYPE

From SNMPv2-SMI

Counter32
IpAddress
MODULE-IDENTITY
OBJECT-TYPE
TimeTicks
Unsigned32

From SNMPv2-TC

DisplayString
PhysAddress
RowStatus
TEXTUAL-CONVENTION
TruthValue

How to Use in IPNetwork Monitor

Example using rlDot3adAggPortLacpPdusRx OID:

Select a Cisco Small Business managed switch as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type rlDot3adAggPortLacpPdusRx into the Find box to locate it in the OID tree, selecting the specific row/instance you want to monitor since this is a table column, then select it and click OK. The number of valid LACPDUs received on this Aggregation Port. On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is a Counter32-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases sharply between polls relative to its normal baseline, since an unexpected spike often reflects a real change in traffic or activity. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
rlDot3adAgg	1.3.6.1.4.1.9.6.1.101.65			The private MIB module definition for trunk support in CISCOSB devices.
INT rlDot3adAggMibVersion	1.3.6.1.4.1.9.6.1.101.65.1	INTEGER	read-only	MIB's version, the current version is 1.
rlDot3adAggBalanceTable	1.3.6.1.4.1.9.6.1.101.65.2		not-accessible	An entry of this table specifies a balancing criterion used for the corresponding dot3adAggIndex.
rlDot3adAggBalanceEntry	1.3.6.1.4.1.9.6.1.101.65.2.1		not-accessible	A list of information for each dot3adAggIndex.
INT rlDot3adAggBalanceForwardType	1.3.6.1.4.1.9.6.1.101.65.2.1.1	INTEGER	read-only	A Forwarding type: Bridging or Routing.
INT rlDot3adAggBalanceLayer	1.3.6.1.4.1.9.6.1.101.65.2.1.2	INTEGER	read-write	A Network Layer Number, may have the following values: 2, 3 or 4. The default value is: Bridging: 2 Routing: 3.
INT rlDot3adAggBalanceUsedAddresses	1.3.6.1.4.1.9.6.1.101.65.2.1.3	INTEGER	read-write	Specifies the Network Layer addresses used for Balancing of unicast frames. The function sets the criterion (by layer and used address in it).
INT rlDot3adAggBalanceBroadcastType	1.3.6.1.4.1.9.6.1.101.65.2.1.4	INTEGER	read-write	Specifies a balancing criterion used for L2 broadcast and unknown frames: common: a link allocated for broadcast and unknown frames is used for unicast frames too dedicated: a link allocated for broadcast and unknown frames is not used for unicast frames
INT rlDot3adAggNumOfTrunks	1.3.6.1.4.1.9.6.1.101.65.3	INTEGER	read-only	The number of trunks supported by the device.
INT rlDot3adAggMaxPortsInTrunks	1.3.6.1.4.1.9.6.1.101.65.4	INTEGER	read-only	The maximun number of ports in a trunk.
INT rlDot3adAggTrunkCreationSupport	1.3.6.1.4.1.9.6.1.101.65.5	INTEGER	read-write	Specifies if there is support to rldot3adAggCreationTable, and the type of the support: supportedTrunkOrLacp - ports that are members in some trunk are belongs to it by manual configuration or by lacp, but not togther. notSupported - there is not support to rldot3adAggCreationTable.
rlDot3adAggCreationTable	1.3.6.1.4.1.9.6.1.101.65.6		not-accessible	An entry of this table is for creation of an aggregator for the corresponding dot3adAggIndex, when the value of the rlDot3adAggCreationSupport is diffrent from notSupported.
rlDot3adAggCreationEntry	1.3.6.1.4.1.9.6.1.101.65.6.1		not-accessible	An information for each dot3adAggIndex.
T/F rlDot3adAggCreationTrunk	1.3.6.1.4.1.9.6.1.101.65.6.1.1	TruthValue	read-write	The aggregator can aggregate ports in manual configuration.
T/F rlDot3adAggCreationLacp	1.3.6.1.4.1.9.6.1.101.65.6.1.2	TruthValue	read-write	The aggregator can aggregate ports by lacp.
T/F rlDot3adAggLoadBalancingPerTrunk	1.3.6.1.4.1.9.6.1.101.65.7	TruthValue	read-only	Specifies if load balancing is defined per trunk or per device.
rlDot3adAggPortLacpTable	1.3.6.1.4.1.9.6.1.101.65.8		not-accessible	An entry of this table specifies lacp protocol state and statistics for the corresponding dot3adAggPortIndex.
rlDot3adAggPortLacpEntry	1.3.6.1.4.1.9.6.1.101.65.8.1		not-accessible	A list of information for each dot3adAggPortIndex.
C32 rlDot3adAggPortLacpPdusRxEx	1.3.6.1.4.1.9.6.1.101.65.8.1.1	Counter32	read-only	The number of valid LACPDUs received on this Aggregation Port. This value is read-only.
C32 rlDot3adAggPortLacpPDUsTx	1.3.6.1.4.1.9.6.1.101.65.8.1.2	Counter32	read-only	The number of LACPDUs transmitted on this Aggregation Port. This value is read-only.
INT rlDot3adAggPortLacpRxState	1.3.6.1.4.1.9.6.1.101.65.8.1.3	INTEGER	read-only	This attribute holds the value 'current' if the Receive state machine for the Aggregation Port is in the CURRENT state, 'expired' if the Receive state machine is in the EXPIRED state, 'defaulted' if the Receive state machine is in the DEFAULTED state, 'initialize' if the Receive state machine is in the INITIALIZE state, 'portDisabled' if the Receive state machine is in the PORT_DISABLED state, or 'lacpDisabled' if the Receive state machine is in the LACP_DISABLED state. This value is read-only.
INT rlDot3adAggPortLacpMuxState	1.3.6.1.4.1.9.6.1.101.65.8.1.4	INTEGER	read-only	This attribute holds the value 'detached' if the Mux state machine for the Aggregation Port is in the DETACHED state, 'waiting' if the Mux state machine is in the WAITING state, 'attached' if the Mux state machine for the Aggregation Port is in the ATTACHED state, 'collecting' if the Mux state machine for the Aggregation Port is in the COLLECTING state, 'distributing' if the Mux state machine for the Aggregation Port is in the DISTRIBUTING state, and 'collecting_ distributing' if the Mux state machine for the Aggregation Port is in the COLLECTING_DISTRIBUTING state. This value is read-only.
INT rlDot3adAggPortLacpPeriodicState	1.3.6.1.4.1.9.6.1.101.65.8.1.5	INTEGER	read-only	This attribute holds the value 'noPeriodic' if the Periodic state machine for the Aggregation Port is in the NO_PERIODIC state, 'fastPeriodic' if the Mux state machine is in the FAST_PERIODIC state, 'slowPeriodic' if the Mux state machine for the Aggregation Port is in the SLOW_PERIODIC state, or 'periodicTx' if the Periodic state machine for the Aggregation Port is in the PERIODIC_TX state. This value is read-only.
INT rlDot3adAggPortLacpSelected	1.3.6.1.4.1.9.6.1.101.65.8.1.6	INTEGER	read-only	This attribute holds the value 'unselected' if the Selected variable for the Aggregation Port is set to UNSELECTED, 'selected' if the Selected variable for the Aggregation Port is set to SELECTED, or 'waiting' if the Selected variable for the Aggregation Port is set to WAITING. This value is read-only.
T/F rlDot3adAggPortLacpReady	1.3.6.1.4.1.9.6.1.101.65.8.1.7	TruthValue	read-only	A read-only Boolean value indicating whether the Aggregation Port is in the WAITING state in the Mux state machine and its wait_while_timer has expired ('TRUE'). otherwise, its valus is 'FALSE'.
T/F rlDot3adAggPortLacpPortMoved	1.3.6.1.4.1.9.6.1.101.65.8.1.8	TruthValue	read-only	A read-only Boolean value indicating whether the Partner_Oper_System or Partner_Oper_Port_Number in use by the Aggregation Port has been changed in an incoming LACPDU ('TRUE'). otherwise, its valus is 'FALSE'.
T/F rlDot3adAggPortLacpNNT	1.3.6.1.4.1.9.6.1.101.65.8.1.9	TruthValue	read-only	A read-only Boolean value indicating whether there is a new protocol information that should be transmitted on the link, or that the Partner needs to be reminded of the old information. otherwise, its valus is 'FALSE'.
INT rlDot3adAggPortLacpPeriodicTxTimer	1.3.6.1.4.1.9.6.1.101.65.8.1.10	INTEGER	read-only	The amount of time in seconds remaining before the Periodeic Tx timer will expire. This value is read-only.
INT rlDot3adAggPortLacpCurrentWhileTimer	1.3.6.1.4.1.9.6.1.101.65.8.1.11	INTEGER	read-only	The amount of time in seconds remaining before the Current While timer will expire. This value is read-only.
INT rlDot3adAggPortLacpWaitWhileTimer	1.3.6.1.4.1.9.6.1.101.65.8.1.12	INTEGER	read-only	The amount of time in seconds remaining before the Wait While timer will expire. This value is read-only.
T/F rlDot3adAggLacpMembershipRestrictionsSupport	1.3.6.1.4.1.9.6.1.101.65.9	TruthValue	read-write	Specifies if there is support to rlDot3adAggLacpMembershipRestrictionsTable.
rlDot3adAggLacpMembershipRestrictionsTable	1.3.6.1.4.1.9.6.1.101.65.10		not-accessible	An entry of this table specifies membership restrictions for ports that lacp is enbaled on them, and try to attach to the corresponding dot3adAggIndex.
rlDot3adAggLacpMembershipRestrictionsEntry	1.3.6.1.4.1.9.6.1.101.65.10.1		not-accessible	A list of information for each dot3adAggIndex.
U32 rlDot3adAggLacpMembershipRestrictionsPartnerAdminKey	1.3.6.1.4.1.9.6.1.101.65.10.1.1	Unsigned32	read-write	This variable specifies the administrative key of the remote LACP aggregator. A value of 0 is returned if the value of the variable hasn't been set.
U32 rlDot3adAggLacpMembershipRestrictionsSpeedAdminMode	1.3.6.1.4.1.9.6.1.101.65.10.1.2	Unsigned32	read-write	This variable specifies the required speed of the LACP aggregator in bits per second. A value of 10 is returned for 10G. A value of 0 is returned if the value of the variable hasn't been set.
PHY rlDot3adAggLacpMembershipRestrictionsPartnerAdminSystemId	1.3.6.1.4.1.9.6.1.101.65.10.1.3	PhysAddress	read-write	This variable specifies the administrative MAC Address of the remote LACP aggregator. A null mac address is returned if the value of the variable hasn't been set.
U32 rlDot3adAggLacpMembershipRestrictionsPartnerAdminSystemPriority	1.3.6.1.4.1.9.6.1.101.65.10.1.4	Unsigned32	read-write	This variable specifies the administrative System Priority of the remote LACP aggregator. A value of 0 is returned if the value of the variable hasn't been set.
T/F rlDot3adAggLacpMembershipRestrictionsIndividualAggregator	1.3.6.1.4.1.9.6.1.101.65.10.1.5	TruthValue	read-write	This variable specifies if the lacp aggregator represents an Aggregate ('FALSE') or an Individual link ('TRUE').

RFC description

Configures 802.3ad Link Aggregation (LAG) trunk balancing for Cisco Small Business devices.

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Download CISCOSB-TRUNK-MIB