CISCO-ENTITY-REDUNDANCY-TC-MIB

File: CISCO-ENTITY-REDUNDANCY-TC-MIB.mib (23985 bytes)

Imported modules

SNMPv2-SMI SNMPv2-TC CISCO-SMI

Imported symbols

MODULE-IDENTITY TEXTUAL-CONVENTION ciscoMgmt

Defined Types

CeRedunType  
Defines the following group redundancy types: other(1) Indicates a type of redundancy which doesn't fall into any other listed category. yCable(2) A form of redundancy in which signals from a common line are connected to ports on two redundant members using a special Y-shaped splitter/combiner cable. The receive signals are split and fed to the receive ports on each redundant member. The transmit signals are combined from the transmit ports on each member. However, only the active redundant member transmits a signal, while the standby member suppresses sending a signal into the Y-combiner. aps(3) Automatic Protection Switching. A form of redundancy using redundant lines with one connected to the working port on the primary member and the other connected to the protection port on the secondary member. APS redundancy protects against line (or fiber) failures in addition to protecting against port module hardware failures. featureCard(4) The featureCard option is used when the module does not have external line interfaces. Examples are modules which provide packet processing, additional memory or even fans or power supplies. externalSwitch(5) A form of redundancy similar to yCable but using an external switch to select or direct the receive or transmit signals from a common line to ports on redundant members. Additional control (not provided in this general MIB) may be necessary in order to control and monitor the external switch. slotPair(6) Some platforms require the user to configure a slot-pair group in order to allow internal signals to be bridged to redundant linecards in the slot-pair. But redundancy groups would also need to be configured for contained entities, such as ports. Switchovers should take place independently for each contained entity (e.g. port). The slotPair groups support only basic group and member configuration including the primary/secondary designation. Switchovers may only be supported for the contained entity. The primary/secondary roles of contained group members must match the primary/secondary role of the containing entity. cmts(7) redundancy is provided for Cable Modem Termination Systems.
TEXTUAL-CONVENTION    
  INTEGER other(1), yCable(2), aps(3), featureCard(4), externalSwitch(5), slotPair(6), cmts(7)  

CeRedunScope  
Defines the following group redundancy scopes: other(1) The scope is not described by any of the other categories listed below. local(2) All redundancy group members reside on a single managed system and are reachable through a single management IP address. remoteChassis(3) This redundancy group has peer members on physically separate local and remote managed systems with separate management IP addresses. But the local and remote systems can communicate with each other and are contained in the same instance of a supercontainer 'stack' entPhysicalClass, even if they don't physically reside in close proximity. Therefore the members in the separate systems can be represented by a common entPhysicalIndex numbering scheme. An example might be a multi-shelf system where redundant member linecards are located on separate shelves. Each shelf may have a separate management port to allow SNMP control, but the linecards are designated by a common shelf/slot numbering instead of just a slot number. Therefore both members can be configured by communicating with one of the SNMP managed systems even though only one member is physically located on that managed shelf. remoteSystem(4) This redundancy group has peer members on physically separate local and remote managed systems with separate management IP addresses. The local and remote systems have independent entPhysicalIndex numbering. The local and remote members may be tied together by some other means, such as by configuration of an InetAddress for the remote peer member and the requirement to use matching ceRedunGroupTypeIndex and ceRedunGroupIndex values on the local and remote systems. Because of the independent PhysicalIndex numbering, the primary member configuration would need to be done on one managed system and the peer secondary member configuration would need to be done on the remote managed system.
TEXTUAL-CONVENTION    
  INTEGER other(1), local(2), remoteChassis(3), remoteSystem(4)  

CeRedunArch  
The architecture of the redundancy group. other(1) The redundancy architecture doesn't fall into one of the categories listed below. oneToOne(2) 1:1 redundancy allows a secondary member to protect only one primary member. onePlusOne(3) 1+1 redundancy also allows a secondary member to protect only one primary member. In 1+1 architecture the transmit signal is bridged so that it is transmitted identically on both redundant lines. So it only applies to the aps redundancy type. oneToN(4) The 1:n architecture allows a secondary member to protect for any of N primary members. But the secondary can only take over as active for one primary at any given time. mToN(5) The m:n architecture allows M secondary members to protect for any of N primary members. Each secondary member can only take over as active for one primary at any given time. loadSharing(6) In load sharing architectures, redundant peers can actively provide some of the functionality normally provided by a single member, so that either the capacity of the system can be increased or else the loading on the primary member can be decreased.
TEXTUAL-CONVENTION    
  INTEGER other(1), oneToOne(2), onePlusOne(3), oneToN(4), mToN(5), loadSharing(6)  

CeRedunSwitchCommand  
The following redundancy switch command values are defined. However some platforms, group types or redundancy types may only support a subset of these commands: noCmdInEffect(1) This value should be returned by a read request when no switch command has been written to the member in question since initialization or the last command is no longer in effect due to either a later clear command or because switch commands never remain in effect on this managed system. This value may not be used in a write operation. clear(2) Clears any switch command in effect for the specified member. If the member number is sent as -1, then it clears all switch commands in effect for all members. Following a clear command, the value read back should be noCmdInEffect. manualSwitchAway(3) Switches away from the specified member, so that it will become (or remain) standby. It should succeed only if the peer member is present with no switchable alarm conditions and has no equal or higher precedence switch command in effect. forcedSwitchAway(4) Switches away from the specified member, so that it will become (or remain) standby. This should succeed when the peer member is present even when it has a degraded alarm condition or a manual switch in effect. When applied to a primary member it should not succeed if the secondary peer has a failure alarm condition. However, if applied to a secondary member it should succeed even if the peer primary member has a failure alarm condition. lockoutProtection(5) When applied to a secondary member, this command should prevent the secondary from taking over as active for any primary member. It should if necessary, cause a switch back to the corresponding primary member even when there is an existing alarm or forced switch in effect for the primary member. When applied to a primary member in a 1:n architecture, it should prevent just the one primary member from going standby.
TEXTUAL-CONVENTION    
  INTEGER noCmdInEffect(1), clear(2), manualSwitchAway(3), forcedSwitchAway(4), lockoutProtection(5)  

CeRedunMode  
Primary and secondary mode. The designation as primary or secondary is configured and is static. It doesn't change due to a switchover. primary The member which normally defaults to active at system startup and following a ceRedunGroupWaitToRestore timeout for a revertive group. For APS redundancy types, this is called the working member. secondary The member which normally defaults to standby at system startup. It represents the extra member which has been added in order to provide backup to the primary member(s). For APS redundancy types, the secondary member is called the protection member.
TEXTUAL-CONVENTION    
  INTEGER primary(1), secondary(2)  

CeRedunMbrStatus  
Bitflags indicating the current redundancy status of a redundant member. Some combinations of multiple bitflags may be set at the same time. protectionLockedOut This bit, when applied to a primary member, indicates that the member is prevented from switching to standby. When applied to a secondary member, this bit indicates that it may not take over as active for any primary member. degraded A degraded alarm condition is in effect for the member. This is any alarm condition which allows the member to provide some usable level of functionality, but should still result in a switchover if the peer member is good. Any other minor alarm conditions which should not result in switchovers, should not cause the degraded bit to be set. failure A failure alarm condition is in effect for the member. This is any alarm condition which prevents or seriously degrades the ability of the member to provide a usable level of functionality. standby The standby bit should be set for primary member any time a secondary member has taken over as active for it. The standby bit should be set for a secondary member during the entire time when that member has not taken over as active for a primary member. protectionProvided This bit is set whenever the standby bit is not set and a corresponding standby member has reached its terminal standby state so that it is fully capable of providing protection for this active member. It should be suppressed if the protectionLockedOut bit or the forcedStandby bit is set for either member. However it may remain set while the manualStandby bit is set for a corresponding standby member as long as switchover protection is still being offered for this active member under some conditions. forcedStandby This bit is applied if a forcedSwitchAway command is in effect for the member. manualStandby This bit is applied if a manualSwitchAway command is in effect for the member.
TEXTUAL-CONVENTION    
  BITS protectionLockedOut(0), degraded(1), failure(2), standby(3), protectionProvided(4), forcedStandby(5), manualStandby(6)  

CeRedunStateCategories  
A list of categories of possible member internal states which may be considered significant for redundancy control. Managed systems may report only a subset of these state categories. Managed systems may also report multiple states that fall into the same categories: other(1) The internal state doesn't fall into any other category listed below. disabled(2) The member is disabled from participating in protection for this group, due to some user or automatic action. inactive(3) The member is not active, but is not considered as providing standby protection for this group. failed(4) The member can no longer provide protection for the redundancy group because of a failure condition. Note: Managed systems may optionally leave members with failures in other internal states, but may just report an alarm condition for the member. initializing(5) The member is undergoing initialization. negotiation(6) The member is determining its active/standby classification. activeOther(7) The member is considered as active, but doesn't fit into any other active category listed below. activeImageInitialize(8) The member has been chosen as active but is in the process of downloading or otherwise initializing a software or firmware image. activeConfigInitialize(9) The member has been chosen as active but is in the process of downloading or otherwise initializing its configuration. activeRunStateInitialize(10) The member has been chosen as active but is in the process of downloading or otherwise initializing other information considered as part of its run-time state. activeFromStandbyTransition(11) The member is in the process of transitioning from active to standby. activeReconciliation(12) The member is reconciling in order to bring some internal configuration or run-time state to be consistent with some other entity. activeWait(13) The member is doing some unspecified activity prior to reaching its final active state. active(14) The member is in its final active state. standbyOther(15) The member is considered as standby, but doesn't fit into any other standby category listed below. standbyImageInitialize(16) The member has been chosen as standby but is in the process of downloading or otherwise initializing a software or firmware image. standbyConfigInitialize(17) The member has been chosen as standby but is in the process of downloading or otherwise initializing its configuration. standbyRunStateInitialize(18) The member has been chosen as standby but is in the process of downloading or otherwise initializing other information considered as part of its run-time state. standbyReconciliation(19) The member is reconciling in order to bring some internal configuration or run-time state to be consistent with some other entity. standbyWait(20) The member is doing some unspecified activity prior to reaching its final standby state. standbyColdFinal(21) The member is in its final standby state, but it will require a substantial interval of additional activities before it can be fully active following a switchover. standbyWarmFinal(22) The member is in its final standby state, but it will require a small interval of additional activities before it can be fully active following a switchover. standbyHotFinal(23) The member is in its final standby state and will be able to take over as active immediately following a switchover. standbySwitchingToActive(24) The member is still considered standby, but is in the process of transitioning to active.
TEXTUAL-CONVENTION    
  INTEGER other(1), disabled(2), inactive(3), failed(4), initializing(5), negotiation(6), activeOther(7), activeImageInitialize(8), activeConfigInitialize(9), activeRunStateInitialize(10), activeFromStandbyTransition(11), activeReconciliation(12), activeWait(13), active(14), standbyOther(15), standbyImageInitialize(16), standbyConfigInitialize(17), standbyRunStateInitialize(18), standbyReconciliation(19), standbyWait(20), standbyColdFinal(21), standbyWarmFinal(22), standbyHotFinal(23), standbySwitchingToActive(24)  

CeRedunReasonCategories  
A list of categories of possible switchover reasons. Managed systems may report only a subset of these reason categories. Managed systems may also report multiple reasons that fall into the same categories.: other(1) The specified reason doesn't fall into any of the categories listed below. unsupported(2) The reason code is an unsupported feature notKnown(3) The managed system was not able to determine the reason for the last switchover. userManual(4) The switchover was a result of a manualSwitchAway command by a user. userForced(5) The switchover was a result of a forcedSwitchAway command by a user. userLockout(6) The switchover was a result of a lockoutProtection command by a user. activeMbrFailed(7) The switchover was triggered by a degrade or failure alarm on the previously active member. activeMbrRemoved(8) The switchover was triggered by the removal of the previously active member. activeMbrDisabled(9) The switchover was triggered by some other user controlled action which placed the prior active member into an offline, disabled or shutdown state. revertiveSwitchover(10) The switchover was the result of a timeout of the wait-to-revert timer for a group configured for revertive switching. remoteRequest(11) The switchover was triggered due to a request from a remote system.
TEXTUAL-CONVENTION    
  INTEGER other(1), unsupported(2), notKnown(3), userManual(4), userForced(5), userLockout(6), activeMbrFailed(7), activeMbrRemoved(8), activeMbrDisabled(9), revertiveSwitchover(10), remoteRequest(11)  

Defined Values

ciscoEntityRedunTcMIB 1.3.6.1.4.1.9.9.494
This module defines the textual conventions used within Cisco Entity Redundancy MIBs.
MODULE-IDENTITY