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.
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 |
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.
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
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.
OIDs
| OID symbolic | OID numeric | Type | Access | Description |
|---|---|---|---|---|
| rcIpMulticastArpTable | 1.3.6.1.4.1.2272.1.8.17 | not-accessible | IP Multicast Arp table | |
| rcIpMulticastArpEntry | 1.3.6.1.4.1.2272.1.8.17.1 | not-accessible | An entry of Ip Multicast Arp Table. | |
| I32 rcIpMulticastArpVlanId | 1.3.6.1.4.1.2272.1.8.17.1.1 | Integer32 | read-only | vlan id |
| MAC rcIpMulticastArpMacAddress | 1.3.6.1.4.1.2272.1.8.17.1.2 | MacAddress | read-only | multicast mac address |
| IP rcIpMulticastArpIpAddress | 1.3.6.1.4.1.2272.1.8.17.1.3 | IpAddress | read-only | multicast ip address |
| POR rcIpMulticastArpPorts | 1.3.6.1.4.1.2272.1.8.17.1.4 | PortSet | read-write | ports within a particular vlan |
| I32 rcIpMulticastArpNumMltIds | 1.3.6.1.4.1.2272.1.8.17.1.5 | Integer32 | read-only | number of mlt ids |
| IDL rcIpMulticastArpMltIds | 1.3.6.1.4.1.2272.1.8.17.1.6 | IdList | read-write | mlt id |
| ROW rcIpMulticastArpRowStatus | 1.3.6.1.4.1.2272.1.8.17.1.7 | RowStatus | read-write | row status |
| rcArpMib | 1.3.6.1.4.1.2272.1.9.0 | Enterprise MIB for the Accelar product family. | ||
| I32 rcArpExtLifeTime | 1.3.6.1.4.1.2272.1.9.1 | Integer32 | read-write | The lifetime in minutues of an ARP entry within the system. |
| rcArpExtTable | 1.3.6.1.4.1.2272.1.9.2 | not-accessible | ARP extension table. This table augments the standard ipNetToMediaTable defined in RFC1213. | |
| rcArpExtEntry | 1.3.6.1.4.1.2272.1.9.2.1 | not-accessible | Entry containing Proprietary ARP information. An entry is automatically created in this table when an ip address is configured on an interface. | |
| NUM rcArpExtEntIfIndex | 1.3.6.1.4.1.2272.1.9.2.1.1 | InterfaceIndex | read-only | The index value which uniquely identifies the interface to which this entry is applicable. The interface identified by a particular value of this index is the same interface as identified by the same value of ifIndex. |
| INT rcArpExtEntDoProxy | 1.3.6.1.4.1.2272.1.9.2.1.2 | INTEGER | read-write | Enable or disable ARP proxy responses on the specified interface. |
| INT rcArpExtEntDoResp | 1.3.6.1.4.1.2272.1.9.2.1.3 | INTEGER | read-write | Enable or disable the sending of ARP responses on the specified interface. |
| INT rcArpExtEntDoFlood | 1.3.6.1.4.1.2272.1.9.2.1.4 | INTEGER | read-write | Enable or disable flooding of ARP responses for NLBS Virtual Mac on the specified interface. |
| rcArpExtV2Table | 1.3.6.1.4.1.2272.1.9.3 | not-accessible | ARP extension table. This table augments the standard ipNetToMediaTable defined in RFC1213. | |
| rcArpExtV2Entry | 1.3.6.1.4.1.2272.1.9.3.1 | not-accessible | Entry containing Proprietary ARP information. An entry is automatically created in this table when an ip address is configured on an interface. | |
| NUM rcArpExtV2EntIfIndex | 1.3.6.1.4.1.2272.1.9.3.1.1 | InterfaceIndex | read-only | The index value which uniquely identifies the interface to which this entry is applicable. The interface identified by a particular value of this index is the same interface as identified by the same value of ifIndex. |
| IP rcArpExtV2EntIpIfAddr | 1.3.6.1.4.1.2272.1.9.3.1.2 | IpAddress | read-only | Ip Address |
| INT rcArpExtV2EntDoProxy | 1.3.6.1.4.1.2272.1.9.3.1.3 | INTEGER | read-write | Enable or disable ARP proxy responses on the specified interface. |
| INT rcArpExtV2EntDoResp | 1.3.6.1.4.1.2272.1.9.3.1.4 | INTEGER | read-write | Enable or disable the sending of ARP responses on the specified interface. |
| INT rcArpExtMulticastMacFlooding | 1.3.6.1.4.1.2272.1.9.4 | INTEGER | read-write | Enable/Disable Multicast Mac Flooding Mode |
RFC description
Vendor-private MIB for Bay Networks/Nortel Accelar product family managing ARP functionality including multicast ARP and VLAN configurations.
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