DC-ISIS-MIB :: isisSysMaxExternalRoutesAction

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

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isisSysMaxExternalRoutesAction

Module: DC-ISIS-MIB

OID (symbolic): DC-ISIS-MIB::isisSysMaxExternalRoutesAction

OID (numeric): 1.2.826.0.1.1578918.5.63.1.1.1.1.1.36

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-create

Description: The action that DC-ISIS will take when the number of external routes exceeds isisSysMaxExternalRoutes.

If set to 'log', DC-ISIS will alert the administrator by logging that the limit has been exceeded.

If set to 'suppressExternal', DC-ISIS will remove all external routes from the local LSP (at all active levels) in addition to logging the problem.

In both cases, the administrator is responsible for correcting the configuration in each Address Family Manager (for example, DC-RTM), to reduce the number of redistributed external routes.

In the 'suppressExternal' case, the Address Family Manager is responsible for resynchronizing the set of routes with DC-ISIS.

What is isisSysMaxExternalRoutesAction?

Controls what DC-ISIS does when the number of external routes exceeds isisSysMaxExternalRoutes: 'log' just alerts the administrator via a log message, while 'suppressExternal' (the default) additionally strips all external routes from the local LSP at every active level in addition to logging. An admin relies on 'suppressExternal' to protect the network from LSP bloat, but must then fix the redistribution configuration in the relevant Address Family Manager (e.g. DC-RTM) and let it resynchronize routes with DC-ISIS afterward.

OID Breakdown

Upper-level ancestors (6 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.2member_bodyIEEE802dot11-MIB
1.2.826gbMETASWITCH-MIB
1.2.826.0gbNationalMETASWITCH-MIB
1.2.826.0.1gbNatCompanyMETASWITCH-MIB
1.2.826.0.1.1578918dataConnectionMETASWITCH-MIB
Numeric OIDNameModule
1.2.826.0.1.1578918.5.63.1dcIsisMibDC-ISIS-MIB
1.2.826.0.1.1578918.5.63.1.1isisObjectsDC-ISIS-MIB
1.2.826.0.1.1578918.5.63.1.1.1isisSystemDC-ISIS-MIB
1.2.826.0.1.1578918.5.63.1.1.1.1isisSysTableDC-ISIS-MIB
1.2.826.0.1.1578918.5.63.1.1.1.1.1isisSysEntryDC-ISIS-MIB
1.2.826.0.1.1578918.5.63.1.1.1.1.1.36isisSysMaxExternalRoutesActionDC-ISIS-MIB