The system maintains a listing of BRC hardware connections. When the system is equipped with redundant BRCs, the BRC listing indicates which BRC pair is active and which is standby. All BRCs in the system must be entered in the system database before you configure them. A BRC is identified by its Rack, Level, and Slot (R,L,S) hardware address.

A BRC pair consists of a master BRC (MBRC) and a secondary BRC (SBRC). The MBRC must reside in the Master Port Subrack usually in Rack 1, Level 1. The SBRC resides in either Slot 1 or 2 of an Expansion Port Subrack. The system uses this BRC pair to extend the communications bus from the Master Port Subrack to the Expansion Port Subrack. A BRC pair is required for each Expansion Port Subrack in the system. BRC redundancy requires a second pair for each subrack.

The MBRC and SBRC are physically connected by a cable (refer to the Cisco VCO/4K Hardware Installation Guide) and logically connected (in the software) using the objects in the BRC table. Both the physical and logical connections must be made for the system to establish communications to an Expansion Port Subrack.

Consider the following when configuring BRCs:

MBRCs must have a Rack or Cabinet, Level value of 1-1.
SBRCs must reside in Slot 1 or 2 of an Expansion Port Subrack. They cannot have a Rack or Cabinet, Level value of 1-1.
The system does not verify that the hardware connection between BRCs is consistent with the information in the BRC tables in the MIB.
If one of the BRCs you specify is configured as part of another BRC pair, it is reconfigured to match the newly entered data.
When you have redundant BRCs and you initialize the system, the BRC pair that becomes available for service first is selected as the active pair for a subrack.

brcTable

{comm 1}

Description

The BRC configuration table.

Object Identifier

1.3.6.1.4.1.886.1.6.1

Data Type

Sequence of BrcEntry

Access Policy

Not accessible

Status

Mandatory

brcEntry

{brcTable 1}

Description

An object in the BRC configuration table.

Object Identifier

1.3.6.1.4.1.886.1.6.1.1

Data Type

BrcEntry

Access Policy

Not accessible

Status

Mandatory

Index

{brcIndex}

BrcEntry

Sequence

brcIndex	CardIndex
brcRack	Integer
brcLevel	Integer
brcSlot	Integer
brcStatus	Integer
brcType	Integer
brcRevVer	Display String
brcPhyAdd	Integer
brcConn	Integer
brcDisConn	Integer
brcMode	Integer
brcRedMasterIndex	CardIndex
brcAlarm	Integer
brcErrorStatus	Integer
brcOwnerString	OwnerString
brcEntryStatus	EntryStatus

brcIndex

{brcEntry 1}

Description

Identifies an object in the BRC table. This object contains the physical location (hardware address) of the card to which this port is attached. The index object lists the rack (R), the level (L), and the slot (S) where the card resides.

Object Identifier

1.3.6.1.4.1.886.1.6.1.1.1

Data Type

CardIndex

Access Policy

Read only

Status

Mandatory

brcRack

{brcEntry 2}

Description

The rack (R) where the card resides.

Object Identifier

1.3.6.1.4.1.886.1.6.1.1.2

Data Type

Integer

Access Policy

Read only

Status

Mandatory

brcLevel

{brcEntry 3}

Description

The level (L) where the card resides.

Object Identifier

1.3.6.1.4.1.886.1.6.1.1.3

Data Type

Integer

Access Policy

Read only

Status

Mandatory

brcSlot

{brcEntry 4}

Description

The slot (S) where the card resides.

Object Identifier

1.3.6.1.4.1.886.1.6.1.1.4

Data Type

Integer

Access Policy

Read only

Status

Mandatory

brcStatus

{brcEntry 5}

Description

Indicates the current status of the card.

Object Identifier

1.3.6.1.4.1.886.1.6.1.1.5

Data Type

Integer. The valid numerical and string values are shown in the following table:

Value	String	Meaning
1	active¹	Ports on this card can be involved in active calls and can be allocated to new calls.
4	outOfService	No ports on this card can be involved in active calls. No ports are allocated to new calls.
5	standby	Valid for one of the two NBC cards in redundant systems only. Also valid for one or more DTG cards in either a redundant or nonredundant system or BRCs.
6	campedOn	(diagnostic state)
7	payloadLoopback	(diagnostic state)
8	remoteLoopback	(diagnostic state)

¹The agent might take as long as 10 seconds to put a card into the Active state.

Access Policy

Read-write

Status

Mandatory

brcType

{brcEntry 6}

Description

Indicates the type of card. In this table the type is a BRC card (the value is always 14).

Object Identifier

1.3.6.1.4.1.886.1.6.1.1.6

Data Type

Integer

Access Policy

Read only

Status

Mandatory

brcRevVer

{brcEntry 7}

Description

Indicates the version and the revision level numbers of the firmware installed on the card. Use this object to verify the firmware revisions for all network interface and service circuit cards are at the current level.

Object Identifier

1.3.6.1.4.1.886.1.6.1.1.7

Data Type

DisplayString. Length of the display string is from 1 to 5 characters.

Access Policy

Read only

Status

Mandatory

brcPhyAdd

{brcEntry 8}

Description

The physical address of this card. The address is assigned by the system. You cannot assign or modify this address.

Object Identifier

1.3.6.1.4.1.886.1.6.1.1.8

Data Type

Integer

Access Policy

Read only

Status

Mandatory

brcConn

{brcEntry 9}

Description

Connects two BRCs that are in a master/slave mode. If either of the two cards is already connected, the connect BRC operation fails and the management station disconnects the cards using the brcDisConn object. An SNMP GetRequest on this object when no BRCs are connected returns a 0 value.

Object Identifier

1.3.6.1.4.1.886.1.6.1.1.9

Data Type

Integer

Access Policy

Read-write

Status

Mandatory

brcDisConn

{brcEntry 10}

Description

Disconnects an already existing BRC pair. To disconnect a pair, you need to set this object to the same value set in the brcConn object. An SNMP GetRequest on this object returns a NoSuchName error message.

Object Identifier

1.3.6.1.4.1.886.1.6.1.1.10

Data Type

Integer

Access Policy

Read-write

Status

Mandatory

brcMode

{brcEntry 11}

Description

Indicates whether the card is in the master (1) or slave (2) mode.

Object Identifier

1.3.6.1.4.1.886.1.6.1.1.11

Data Type

Integer. The two values are 1 (master) and 2 (slave).

Access Policy

Read only

Status

Mandatory

brcRedMasterIndex

{brcEntry 12}

Description

Contains the location of the Master BRC that is associated with the same expansion port subrack as the Master BRC for this BRC pair for systems with redundant BRCs. If there is no redundant BRC, this object contains a zero (0).

Object Identifier

1.3.6.1.4.1.886.1.6.1.1.12

Data Type

CardIndex

Access Policy

Read only

Status

Mandatory

brcAlarm

{brcEntry 13}

Description

Tracks which alarms are active on this card.

Object Identifier

1.3.6.1.4.1.886.1.6.1.1.13

Data Type

Integer. The valid values and their meanings are shown in the following table:

Value	String
1	cardFailureMinor
2	portFailureMinor
3	cardAndPortFailureMinor

Access Policy

Read only

Status

Mandatory

brcErrorStatus

{brcEntry 14}

Description

Registers the last error that occurred on this card. For further information on card error messages, see "Card Error Messages".

Object Identifier

1.3.6.1.4.1.886.1.6.1.1.14

Data Type

Integer. The possible values and their meanings are shown in the following table:

Value	String
1536	cannotConnectBRCsOnSameSubrack
1537	oneBrcMustBeInMasterSubrack
1538	brcNotDefinedInThisSlot
1545	invalidRackLevelCombination
1546	invalidCardAddress
1547	masterBrcAlreadyConnected
1548	destinationBrcAlreadyConnected

Access Policy

Read only

Status

Mandatory

brcOwnerString

{brcEntry 15}

Description

The entity that configured this object and is therefore using the assigned resources.

Object Identifier

1.3.6.1.4.1.886.1.6.1.1.15

Data Type

OwnerString

Access Policy

Read-write

Status

Mandatory

brcEntryStatus

{brcEntry 16}

Description

The status of this BRC object.

Object Identifier

1.3.6.1.4.1.886.1.6.1.1.16

Data Type

EntryStatus

Access Policy

Read-write

Status

Mandatory

brcDwnldVersion

{brcEntry 17}

Description

Version/revision of the card download file

Object Identifier

1.3.6.1.4.1.886.1.6.1.1.17

Data Type

DisplayString (SIZE (1..4))

Access Policy

Read only

Status

Mandatory

brcUpgradeState

{brcEntry 18}

Description

The upgrade state of this bus repeater card entry.

Object Identifier

1.3.6.1.4.1.886.1.6.1.1.18

Data Type

UpgradeState

Access Policy

Read only

Status

Mandatory

brcTableLastModified

{comm 2}

Description

The time, displayed in hundredths of a second, since the brcTable was last modified. Helps NMS application developers determine the polling of the agent parameters.

Object Identifier

1.3.6.1.4.1.886.1.6.2

Data Type

TimeTicks

Access Policy

Read only

Status

Mandatory

Netword Bus Controller (NBC) Card Configuration

The Network Bus Controller (NBC) is a special control circuit card that resides only in Slot 1 or 2 of the Master port subrack. The NBC drives the communication bus and time slot address bus, and generates the system clocks. The NBC also provides the data communication path between the System Controller and the circuit cards in the master and expansion port subracks.

nbcTable

{comm 4}

Description

The NBC configuration table.

Object Identifier

1.3.6.1.4.1.886.1.6.4

Data Type

Sequence of NbcEntry

Access Policy

Not accessible

Status

Mandatory

nbcEntry

{nbcTable 1}

Description

An entry in the NBC configuration table.

Object Identifier

1.3.6.1.4.1.886.1.6.4.1

Data Type

NbcEntry

Access Policy

Not accessible

Status

Mandatory

Index

{nbcIndex}

NbcEntry

Sequence

nbcIndex	CardIndex
nbcRack	Integer
nbcLevel	Integer
nbcSlot	Integer
nbcStatus	Integer
nbcType	Integer
nbcRevVer	Display String
nbcPhyAdd	Integer
nbcAlarm	Integer
nbcErrorStatus	Integer
nbcOwnerString	OwnerString
nbcEntryStatus	EntryStatus

nbcIndex

{nbcEntry 1}

Description

Identifies an object in the NBC card table. It corresponds to the physical location of the card and is a function of the rack (R), the level (L), and the slot (S) where the card resides.

Object Identifier

1.3.6.1.4.1.886.1.6.4.1.1

Data Type

CardIndex

Access Policy

Read only

Status

Mandatory

nbcRack

{nbcEntry 2}

Description

The rack (R) where the card resides.

Object Identifier

1.3.6.1.4.1.886.1.6.4.1.2

Data Type

Integer

Access Policy

Read only

Status

Mandatory

nbcLevel

{nbcEntry 3}

Description

The level (L) where the card resides.

Object Identifier

1.3.6.1.4.1.886.1.6.4.1.3

Data Type

Integer

Access Policy

Read only

Status

Mandatory

nbcSlot

{nbcEntry 4}

Description

The slot (S) where the card resides.

Object Identifier

1.3.6.1.4.1.886.1.6.4.1.4

Data Type

Integer

Access Policy

Read only

Status

Mandatory

nbcStatus

{nbcEntry 5}

Description

Indicates the current status of the card. You cannot change the status of the NBC card.

Object Identifier

1.3.6.1.4.1.886.1.6.4.1.5

Data Type

Integer. The valid numerical and string values are shown in the following table:

Value	String	Meaning
1	active	Indicates the card is active.
4	outOfService	Indicates the card is out of service.
5	standby	Valid for one of the two NBC cards in redundant systems only. Also valid for one or more DTG cards in either a redundant or nonredundant system or BRCs.

Access Policy

Read only

Status

Mandatory

nbcType

{nbcEntry 6}

Description

Indicates the type of card. In this table the card is an NBC card. For an NBC card, this value is always 13.

Object Identifier

1.3.6.1.4.1.886.1.6.4.1.6

Data Type

Integer

Access Policy

Read only

Status

Mandatory

nbcRevVer

{nbcEntry 7}

Description

Indicates the version number and the revision level numbers for the firmware installed on this card. Use these numbers to verify that firmware revisions for all network interface and service circuit cards are at the current level.

Object Identifier

1.3.6.1.4.1.886.1.6.4.1.7

Data Type

DisplayString. Length of the display string is from 1 to 5 characters.

Access Policy

Read only

Status

Mandatory

nbcPhyAdd

{nbcEntry 8}

Description

The physical address of this card. The address is assigned by the VCO system. You cannot assign the address and you cannot modify it.

Object Identifier

1.3.6.1.4.1.886.1.6.4.1.8

Data Type

Integer

Access Policy

Read only

Status

Mandatory

nbcAlarm

{nbcEntry 9}

Description

Tracks which alarms are active on this card.

Object Identifier

1.3.6.1.4.1.886.1.6.4.1.9

Data Type

Integer. The valid values and their meanings are shown in the following table:

Value	String
1	cardFailureMinor
2	portFailureMinor
3	cardAndPortFailureMinor

Access Policy

Read only

Status

Mandatory

nbcErrorStatus

{nbcEntry 10}

Description

Registers the last error that occurred on this card. For a list of the card error messages, see "Card Error Messages".

Object Identifier

1.3.6.1.4.1.886.1.6.4.1.10

Data Type

Integer

Access Policy

Read only

Status

Mandatory

nbcOwnerString

{nbcEntry 11}

Description

The entity that configured this object and is therefore using the resources assigned to it.

Object Identifier

1.3.6.1.4.1.886.1.6.4.1.11

Data Type

OwnerString

Access Policy

Read-write

Status

Mandatory

nbcEntryStatus

{nbcEntry 12}

Description

The status of this NBC card entry. Adding or deleting an NBC card in location 2 also adds the DTG card. The nbcEntryStatus must be set to valid after the card is created.

To modify the attributes of the DTG card in location 1 or 2, use the dtgCardEntryStatus and dtgPortEntryStatus objects.

Object Identifier

1.3.6.1.4.1.886.1.6.4.1.12

Data Type

EntryStatus

Access Policy

Read-write

Status

Mandatory

nbcDwnldVersion

{nbcEntry 13}

Description

Version/revision of the card download file.

Object Identifier

1.3.6.1.4.1.886.1.6.4.1.13

Data Type

DisplayString (size 1...4)

Access Policy

Read only

Status

Mandatory

nbcUpgradeState

{nbcEntry 14}

Description

The upgrade state of this network bus controller card entry.

Object Identifier

1.3.6.1.4.1.886.1.6.4.1.14

Data Type

UpgradeState

Access Policy

Read only

Status

Mandatory

nbcTableLastModified

{comm 5}

Description

The time, displayed in hundredths of a second, since the nbcTable was last modified. Helps NMS application developers determine the polling of the agent parameters.

Object Identifier

1.3.6.1.4.1.886.1.6.5

Data Type

TimeTicks

Access Policy

Read only

Status

Mandatory

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