All MIBs › DECHUB900-COMMON-MIB-V3-0 › pcomEsn
pcomEsn
Module: DECHUB900-COMMON-MIB-V3-0
OID (symbolic): DECHUB900-COMMON-MIB-V3-0::pcomEsn
OID (numeric): 1.3.6.1.4.1.36.2.18.11.2.1.6
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-only
Description: Extended Slot Number assigned to module. An ESN is a 32-bit integer which has a decimal representation that indicates the physical connectivity of both local and remote modules to the hub. The decimal representation is of the form:
ss [aa [bb [cc [dd]]]]
where [] indicates optional. A module inserted directly in the hub has an ESN 'ss' that is the same as its slot number (e.g 3). A remote module connected to the local module's 'aa' port has ESN ssaa. For example, if a concentrator in slot 3 has a repeater connected to port 2, the repeater has ESN 302. Dec Hubs can manage devices up to four remote hops away from the hub.
What is pcomEsn?
The Extended Slot Number, a 32-bit value that encodes not just the local slot but the chain of remote hops (via the ssaa... notation) connecting a module to the hub, up to four hops away. For example, a repeater plugged into port 2 of a concentrator in slot 3 reports ESN 302, letting an admin trace multi-hop stacked topologies from a single query.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.36.2.18.11.2.1.6 snmpwalk -v2c -c public <target> DECHUB900-COMMON-MIB-V3-0::pcomEsn
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.36.2.18.11.2.1.6.1 snmpget -v2c -c public <target> DECHUB900-COMMON-MIB-V3-0::pcomEsn.1
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OID Breakdown
Upper-level ancestors (10 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.36 | dec | CMU-MIB |
| 1.3.6.1.4.1.36.2 | ema | DEC-ATM-CHASSIS-MIB |
| 1.3.6.1.4.1.36.2.18 | decMIBextension | DEC-ATM-CHASSIS-MIB |
| 1.3.6.1.4.1.36.2.18.11 | decHub900 | DECHUB900-CHASSIS-MIB-V3-0 |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.36.2.18.11.2 | pubCommon | DECHUB900-COMMON-MIB-V3-0 |
| 1.3.6.1.4.1.36.2.18.11.2.1 | pcomSlot | DECHUB900-COMMON-MIB-V3-0 |
| 1.3.6.1.4.1.36.2.18.11.2.1.6 | pcomEsn | DECHUB900-COMMON-MIB-V3-0 |