RC-IP-UDP-MIB

All MIBs › RC-IP-UDP-MIB

Organization: Bay Networks, Rapid-City Group

Last Updated: 2004-09-22

Category: Nortel Enterprise Data

Description: Manages UDP helper addresses and broadcast forwarding configuration on Bay Networks Rapid-City series switches.

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What Is RC-IP-UDP-MIB?

RC-IP-UDP-MIB is a Bay Networks/Nortel enterprise MIB for the Accelar/Rapid-City family of routing switches, focused on UDP helper-address and broadcast-forwarding configuration. It exposes configuration-oriented data: a table of named UDP protocols eligible for forwarding and a table of forwarding rules mapping destination ports to destination addresses, along with row-status and table-size counters. Its monitoring value is primarily configuration/software-state verification, confirming that broadcast/UDP helper forwarding such as DHCP or BOOTP relay is correctly provisioned across VLANs, rather than hardware sensor or performance data. It is part of Nortel's Rapid-City private MIB family and is typically used alongside other rc* MIBs covering VLANs and routing on the same platform. It is typically deployed on Nortel/Bay Networks Accelar series Layer 3 switches acting as DHCP/broadcast relay points in campus or enterprise networks, and the RC-IP-UDP-MIB download is available to administrators who want to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in RC-IP-UDP-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 series routing switch

Monitoring Examples

rcIpUdpProtocolTable/Entry defines named UDP protocols via rcIpUdpProtocolPortNumber and rcIpUdpProtocolName that are eligible for forwarding, while rcIpUdpPortFwdTable/Entry with rcIpUdpPortFwdDestPort and rcIpUdpPortFwdDestAddr configures where broadcasts are actually forwarded. An admin checks rcIpUdpProtocolTableSize and rcIpUdpPortFwdTableSize alongside rcIpUdpPortFwdEntry rowStatus to confirm that helper addresses (e.g., for DHCP relay) are correctly provisioned across VLANs.

What Can Be Monitored

configured UDP forwarding protocols
UDP port forward destination address/port
forwarding table size
row status of forwarding entries

Imported Objects

From RAPID-CITY

IdList

From RC-IP-MIB

rcIpUdp

OBJECT-IDENTITY

From SNMPv2-SMI

Counter32
Integer32
IpAddress
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

DisplayString
RowStatus

How to Use in IPNetwork Monitor

Example using rcIpUdpPortFwdNumFwdPackets OID:

Select a Bay Networks/Nortel Accelar/Rapid-City routing switch (UDP helper/broadcast-forwarding configuration) as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type rcIpUdpPortFwdNumFwdPackets into the Find box to locate it in the OID tree, selecting the specific row/instance you want to monitor since this is a table column, then select it and click OK. The total number of UDP/TCP broadcast packets forwarded using this policy. On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is a Counter32-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases sharply between polls relative to its normal baseline, since an unexpected spike often reflects a real change in traffic or activity. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
IP rcIpUdpConfBroadcastIntfBroadCastMask	1.3.6.1.4.1.2272.1.8.13.8.1.10	IpAddress	read-write	The subnet mask of the local interface that is used for broadcasting the UDP broadcast packets.
rcIpUdpConfBroadcastIntfEntry	1.3.6.1.4.1.2272.1.8.13.8.1		not-accessible	Used to configure UDP broadcast forward on a particular interface.
IP rcIpUdpConfBroadcastIntfLocalIfAddr	1.3.6.1.4.1.2272.1.8.13.8.1.1	IpAddress	read-only	The ip address of the local interface that is partipating in the forwarding UDP broadcast packets.
INT rcIpUdpConfBroadcastIntfMaxTtl	1.3.6.1.4.1.2272.1.8.13.8.1.3	INTEGER	read-write	Used to indicate the maximum number of hops an IP broadcast packet can take from the source device to the destination device.
C32 rcIpUdpConfBroadcastIntfNumDropPktsDestUnreach	1.3.6.1.4.1.2272.1.8.13.8.1.7	Counter32	read-only	The total number of UDP broadcast packets dropped because the destination was unreachable.
C32 rcIpUdpConfBroadcastIntfNumDropPktsMaxTtlExpired	1.3.6.1.4.1.2272.1.8.13.8.1.6	Counter32	read-only	The total number of UDP/TCP broadcast packets dropped because the TTL has expired.
C32 rcIpUdpConfBroadcastIntfNumDropPktsUnknownPort	1.3.6.1.4.1.2272.1.8.13.8.1.8	Counter32	read-only	The total number of UDP/TCP broadcast packets dropped because the destination port/protocol specified has no matching forwarding policy.
C32 rcIpUdpConfBroadcastIntfNumFwdPkts	1.3.6.1.4.1.2272.1.8.13.8.1.5	Counter32	read-only	The total number of UDP/TCP broadcast packets forwarded.
C32 rcIpUdpConfBroadcastIntfNumRxPkts	1.3.6.1.4.1.2272.1.8.13.8.1.4	Counter32	read-only	The total number of UDP/TCP broadcast packets received by this local interface.
ROW rcIpUdpConfBroadcastIntfRowStatus	1.3.6.1.4.1.2272.1.8.13.8.1.9	RowStatus	read-write	Entry row status.
rcIpUdpConfBroadcastIntfTable	1.3.6.1.4.1.2272.1.8.13.8		not-accessible	IP broadcast forward configuration table
I32 rcIpUdpConfBroadcastIntfTableSize	1.3.6.1.4.1.2272.1.8.13.7	Integer32	read-only	Used to indicate the number of entries in the rcIpUdpBroadcastIntfTable.
INT rcIpUdpConfBroadcastIntfUdpPortFwdListId	1.3.6.1.4.1.2272.1.8.13.8.1.2	INTEGER	read-write	Used to indicate the number UDP ports that this interface is configured to forward. A value of '0' indicates that this interface will not forward any UDP broadcast packets. This is a required field to create an entry.
rcIpUdpMib	1.3.6.1.4.1.2272.1.8.13.0			Enterprise MIB for the Accelar product family.
IP rcIpUdpPortFwdDestAddr	1.3.6.1.4.1.2272.1.8.13.4.1.2	IpAddress	read-only	Destination IP address. The IP addres to which the UDP/TCP broadcast should be forwarded. This IP address can be any IP server address or subnet broadcast address. If the IP address is one of the routable interface's address on the router, the frame will be rebroadcast out as a limited broadcast. If the Ip address is that of a server then the received broadcast packet will be sent as a unicast packet to this address.
INT rcIpUdpPortFwdDestPort	1.3.6.1.4.1.2272.1.8.13.4.1.1	INTEGER	read-only	The well-known port number defined for UDP/TCP depending on the value of IpProtoType field in this entry. This port number has to be defined in the rcIpUdpProtoTable. In order to select this policy the destination port number has to match the DestPort value.
rcIpUdpPortFwdEntry	1.3.6.1.4.1.2272.1.8.13.4.1		not-accessible	An entry is configured to specify forwarding policy parameters.
IDL rcIpUdpPortFwdFwdListIdList	1.3.6.1.4.1.2272.1.8.13.4.1.5	IdList	read-only	Used to indicate zero or more rcIpUdpPortFwdListEntry(s) that are referring to this entry. Each list-id identifier is stored as two bytes in this array starting from offset zero. Any unused bytes should be set to zero.
INT rcIpUdpPortFwdFwdListIdListSize	1.3.6.1.4.1.2272.1.8.13.4.1.4	INTEGER	read-only	Used to indicate the number of id(s) in the rcIpUdpPortFwdListId variable.
I32 rcIpUdpPortFwdId	1.3.6.1.4.1.2272.1.8.13.4.1.3	Integer32	read-only	Identifier of this entry. Used internally to identify this entry.
rcIpUdpPortFwdListEntry	1.3.6.1.4.1.2272.1.8.13.6.1		not-accessible	Route entry attributes.
OCT rcIpUdpPortFwdListFwdIdList	1.3.6.1.4.1.2272.1.8.13.6.1.5	OCTET STRING	read-write	Used to indicate zero or more UdpPortFwd entries that are associated to this list. Each entry identifier is stored as two bytes in this array starting from offset zero. Any unused bytes should be set to zero.
INT rcIpUdpPortFwdListFwdIdListSize	1.3.6.1.4.1.2272.1.8.13.6.1.4	INTEGER	read-only	Used to indicate the number of rcIpUdpPortFwdNetEntry id(s) in the rcIpUdpPortFwdListIdList variable.
INT rcIpUdpPortFwdListId	1.3.6.1.4.1.2272.1.8.13.6.1.1	INTEGER	read-only	A value that uniquely identifies this list of rcIpUdpPortFwdListEntry.
STR rcIpUdpPortFwdListName	1.3.6.1.4.1.2272.1.8.13.6.1.3	DisplayString	read-write	An administratively-assigned name for this list.
ROW rcIpUdpPortFwdListRowStatus	1.3.6.1.4.1.2272.1.8.13.6.1.6	RowStatus	read-write	Row status of this entry.
rcIpUdpPortFwdListTable	1.3.6.1.4.1.2272.1.8.13.6		not-accessible	A table used to group rcIpUdpPortFwdEntry(s) into a list.
I32 rcIpUdpPortFwdListTableSize	1.3.6.1.4.1.2272.1.8.13.5	Integer32	read-only	Used to indicate the number of entries in the rcIpUdpPortFwdListTable.
C32 rcIpUdpPortFwdNumDropPacketsDestUnreach	1.3.6.1.4.1.2272.1.8.13.4.1.8	Counter32	read-only	The total number of UDP/TCP broadcast packets dropped because the rcIpUdpPortFwdDestAddr specified in this policy was unreachable.
C32 rcIpUdpPortFwdNumDropPacketsTtlExpired	1.3.6.1.4.1.2272.1.8.13.4.1.7	Counter32	read-only	The total number of UDP/TCP broadcast packets dropped because the TTL has expired.
C32 rcIpUdpPortFwdNumFwdPacketsEx	1.3.6.1.4.1.2272.1.8.13.4.1.6	Counter32	read-only	The total number of UDP/TCP broadcast packets forwarded using this policy.
ROW rcIpUdpPortFwdRowStatus	1.3.6.1.4.1.2272.1.8.13.4.1.9	RowStatus	read-write	Row status of this entry.
rcIpUdpPortFwdTable	1.3.6.1.4.1.2272.1.8.13.4		not-accessible	Udp forward entry table.
I32 rcIpUdpPortFwdTableSize	1.3.6.1.4.1.2272.1.8.13.3	Integer32	read-only	Used to indicate the number of entries in the rcIpUdpPortFwdTable.
rcIpUdpProtocolEntry	1.3.6.1.4.1.2272.1.8.13.2.1		not-accessible	Used to include a particular UDP port in the table. An entry in this table indicates that the box might do forwarding of UDP broadcast packets if there is a matching entry for this packet in the rcIpUdpPortFwdTable.
STR rcIpUdpProtocolName	1.3.6.1.4.1.2272.1.8.13.2.1.2	DisplayString	read-write	Used to indicate the name of the protocol that is running on top of UDP protocol. cannot change the name once created. This should be set while creating the entry.
INT rcIpUdpProtocolPortNumber	1.3.6.1.4.1.2272.1.8.13.2.1.1	INTEGER	read-only	well-known UDP Port number. Pre-assigned port number for this protocol. Port used by the server process as its contact port. It cannot be BOOTP/DHCP port#s 67, 68.
ROW rcIpUdpProtocolRowStatus	1.3.6.1.4.1.2272.1.8.13.2.1.3	RowStatus	read-write	Rowstatus of this entry.
rcIpUdpProtocolTable	1.3.6.1.4.1.2272.1.8.13.2		not-accessible	list of UDP protocols. Used to determine whether to forward the UDP broadcast packet or not.
I32 rcIpUdpProtocolTableSize	1.3.6.1.4.1.2272.1.8.13.1	Integer32	read-only	Used to indicate the number of entries in the rcIpUdpProtocolTable.

RFC description

Defines UDP protocol forwarding controls and port configuration for the Accelar product family via Bay Networks SNMP management.

Start monitoring Bay Networks/Nortel Accelar/Rapid-City routing switch (UDP helper/broadcast-forwarding 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.

Download RC-IP-UDP-MIB