All MIBs › DC-ISIS-MIB › isisSysSetAttached
isisSysSetAttached
Module: DC-ISIS-MIB
OID (symbolic): DC-ISIS-MIB::isisSysSetAttached
OID (numeric): 1.2.826.0.1.1578918.5.63.1.1.1.1.1.45
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-create
Description: If DC-ISIS is operating at both level 1 and level 2, this field indicates how DC-ISIS should decide whether to set the attached bit in its level 1 LSP.
- 'attachNoOverlapOrRedist' indicates that the attached bit should be set if either of the following are true. - The IS can reach at least one other area (the IS is adjacent with a L2 router whose area addresses do not overlap with the area addresses we know about at L1). - The IS is redistributing one or more external routes into the AS.
- 'attachNoOverlapOnly' indicates that the attached bit should be set only if the IS can reach at least one other area. - 'attachSet' indicates that the attached bit should always be set.
- 'attachClear' indicates that the attached bit should never be set.
What is isisSysSetAttached?
Controls how a router operating at both Level 1 and Level 2 decides whether to set the 'attached' bit in its Level 1 LSP (which tells L1 routers they can default-route through this router to reach other areas): 'attachNoOverlapOrRedist' (the default) sets it if the router can reach another area or is redistributing external routes, 'attachNoOverlapOnly' sets it only for reachability to another area, 'attachSet' always sets it, and 'attachClear' never sets it. An admin forces 'attachClear' on an L1L2 router that should never be used as an L1 area's default exit point, for example during a controlled migration.
OID Breakdown
Upper-level ancestors (6 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.2 | member_body | IEEE802dot11-MIB |
| 1.2.826 | gb | METASWITCH-MIB |
| 1.2.826.0 | gbNational | METASWITCH-MIB |
| 1.2.826.0.1 | gbNatCompany | METASWITCH-MIB |
| 1.2.826.0.1.1578918 | dataConnection | METASWITCH-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.2.826.0.1.1578918.5.63.1 | dcIsisMib | DC-ISIS-MIB |
| 1.2.826.0.1.1578918.5.63.1.1 | isisObjects | DC-ISIS-MIB |
| 1.2.826.0.1.1578918.5.63.1.1.1 | isisSystem | DC-ISIS-MIB |
| 1.2.826.0.1.1578918.5.63.1.1.1.1 | isisSysTable | DC-ISIS-MIB |
| 1.2.826.0.1.1578918.5.63.1.1.1.1.1 | isisSysEntry | DC-ISIS-MIB |
| 1.2.826.0.1.1578918.5.63.1.1.1.1.1.45 | isisSysSetAttached | DC-ISIS-MIB |