All MIBs › CMM3-MIB › rxSAChanges
rxSAChanges
Module: CMM3-MIB
OID (symbolic): CMM3-MIB::rxSAChanges
OID (numeric): 1.3.6.1.4.1.161.19.3.4.2.1.1.6
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description: The number of times the SA of good receive packets has changed from the previous value. A count greater than 1 generally indicates the port if connected to a repeater based network.
What is rxSAChanges?
This Counter32 object counts how many times the source address of good received packets has changed from its previous value on a port, and the description notes a count greater than 1 typically indicates the port connects to a repeater-based network rather than a single device. An admin auditing which ports connect to hubs versus single end devices watches this counter to distinguish shared-media segments from switched ones. For example, a port showing frequent source-address changes would tell the admin that port likely feeds a legacy hub with multiple attached devices rather than a single PC.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.161.19.3.4.2.1.1.6 snmpwalk -v2c -c public <target> CMM3-MIB::rxSAChanges
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.161.19.3.4.2.1.1.6.1 snmpget -v2c -c public <target> CMM3-MIB::rxSAChanges.1
SNMPv3 example:
snmpget -v3 -l authPriv -u snmpv3-user -a SHA -A "AuthPassword1" -x AES -X "PrivPassword1" <target> rxSAChanges.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 |
| 1.3.6.1.4.1.161 | mot | WHISP-GLOBAL-REG-MIB |
| 1.3.6.1.4.1.161.19 | whispRoot | WHISP-GLOBAL-REG-MIB |
| 1.3.6.1.4.1.161.19.3 | whispProducts | WHISP-GLOBAL-REG-MIB |
| 1.3.6.1.4.1.161.19.3.4 | whispCMM | WHISP-GLOBAL-REG-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.161.19.3.4.2 | cmmSwitch | CMM3-MIB |
| 1.3.6.1.4.1.161.19.3.4.2.1 | cmmSwitchTable | CMM3-MIB |
| 1.3.6.1.4.1.161.19.3.4.2.1.1 | cmmSwitchEntry | CMM3-MIB |
| 1.3.6.1.4.1.161.19.3.4.2.1.1.6 | rxSAChanges | CMM3-MIB |