All MIBs › RC-ARP-MIB
Organization: Bay Networks, Rapid-City Group
Last Updated: 2007-06-27
Category: Nortel Enterprise Data
Description: Manages ARP table entries, proxy ARP, and gratuitous ARP configuration on Bay Networks Rapid-City series switches.
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What Is RC-ARP-MIB?
RC-ARP-MIB is a Bay Networks/Nortel enterprise MIB for the Accelar (Rapid-City) series of Layer 3 switches, extending standard ARP management with vendor-specific configuration objects. It exposes per-interface ARP behavior settings such as proxy ARP, ARP response, and flood behavior, along with a versioned table mapping interfaces to their associated IP addresses. Its monitoring value is mostly configuration/state-oriented rather than hardware health: an administrator can check whether proxy ARP or flooding is enabled on a given interface and confirm the configured ARP entry lifetime, which helps diagnose IP address-resolution issues on the switch. It builds on and complements the standard IETF ARP/IP MIBs (ipNetToMedia/ARP tables) by adding Accelar-specific controls layered on ifIndex. It is typically deployed on Bay Networks/Nortel Accelar (Rapid-City) Layer 3 switches in campus or enterprise network cores, where RC-ARP-MIB SNMP monitoring helps confirm ARP behavior is tuned correctly per interface.
IPNetwork Monitor allows you to monitor SNMP objects defined in RC-ARP-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.
Supported Devices
- Bay Networks/Nortel Accelar (Rapid-City) Layer 3 switches
Monitoring Examples
An admin would check rcArpExtTable/rcArpExtEntry, keyed by rcArpExtEntIfIndex, to see whether rcArpExtEntDoProxy, rcArpExtEntDoResp, or rcArpExtEntDoFlood are enabled on a given interface, and cross-reference rcArpExtV2Table for its IP-address-specific counterpart via rcArpExtV2EntIpIfAddr. Combined with rcArpExtLifeTime (the configured ARP entry timeout), this reveals whether stale or duplicate ARP behavior on a subnet is due to misconfigured proxy ARP rather than a genuine network fault. Disabling rcArpExtEntDoFlood unexpectedly, for instance, could explain why certain hosts stop resolving MAC addresses on that interface.
What Can Be Monitored
- proxy ARP enable/disable per interface
- ARP response and flood behavior per interface
- ARP entry lifetime/timeout
- per-interface IP address to ARP mapping
Imported Objects
From IF-MIB
| InterfaceIndex |
From RAPID-CITY
| IdList | |
| PortSet | |
| rcArp | OBJECT-IDENTITY |
| rcIp | OBJECT-IDENTITY |
From SNMPv2-SMI
| Integer32 | |
| IpAddress | |
| MODULE-IDENTITY | |
| OBJECT-TYPE |
From SNMPv2-TC
| MacAddress | |
| RowStatus |
OIDs
RFC description
Vendor-private MIB for Bay Networks/Nortel Accelar product family managing ARP functionality including multicast ARP and VLAN configurations.
Start monitoring Bay Networks/Nortel Accelar (Rapid-City) Layer 3 switch (proxy ARP/flood behavior configuration) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.