CIENA-CES-DHCP-RELAY-MIB

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Organization: Ciena Corp.

Last Updated: 2017-06-07

Category: IP and Core Protocols, Vendor: Ciena

Description: Manages DHCPv4 relay agent configuration and statistics on Ciena CES Carrier Ethernet switches.

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What Is CIENA-CES-DHCP-RELAY-MIB?

CIENA-CES-DHCP-RELAY-MIB is a Ciena enterprise MIB that manages the DHCPv4 relay agent function on Ciena CES Carrier Ethernet switches, allowing DHCP requests from clients to be forwarded to remote DHCP servers across network segments. It exposes configuration objects for relay agent settings (such as helper addresses and interface enablement) and statistics on relayed DHCP packets. As a software-feature MIB, it is used mainly to monitor the operational status of the DHCP relay service itself, including whether relay is enabled, packet forward/drop counts, and configuration consistency, rather than physical hardware health. It complements standard DHCP-related IETF MIBs and Ciena's broader CES management MIB family. It is typically deployed in access and aggregation switches where DHCP relay is required to support remote client provisioning in Carrier Ethernet access networks, where CIENA-CES-DHCP-RELAY-MIB SNMP monitoring confirms the relay service is actively forwarding client requests.

IPNetwork Monitor allows you to monitor SNMP objects defined in CIENA-CES-DHCP-RELAY-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

Ciena Carrier Ethernet Switch (CES)

Monitoring Examples

No object/table names were provided in the source data for this module, so specific instance names cannot be cited; however, a typical use would be polling relay-enabled interface status and forwarded/dropped DHCP packet counters to confirm that DHCP relay is actively passing client requests to the configured server and to detect misconfigured helper addresses causing dropped requests.

What Can Be Monitored

DHCP relay agent enable/disable status
relayed DHCP packet counts
dropped DHCP packet counts
configured helper/server addresses

Imported Objects

From CIENA-SMI

cienaCesStatistics

OBJECT-IDENTITY

From SNMPv2-SMI

Counter32
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

DisplayString
RowStatus
TEXTUAL-CONVENTION
TruthValue

OIDs

OID symbolic	OID numeric	Type	Access	Description
cienaCesDhcpRelayMIB	1.3.6.1.4.1.1271.2.3.6			The MIB module contains MIB objects to manage DHCP Relay.
cienaCesDhcpRelayAgent	1.3.6.1.4.1.1271.2.3.6.1
cienaCesDhcpRelayAgentGlobalAttrs	1.3.6.1.4.1.1271.2.3.6.1.1
INT cienaCesDhcpRelayAgentCircuitId	1.3.6.1.4.1.1271.2.3.6.1.1.1	INTEGER	read-only	This object specifies the type of circuit ID to be used by the DHCP relay agent. It can be set to li, port, cidString or liVs.
INT cienaCesDhcpRelayAgentRemoteId	1.3.6.1.4.1.1271.2.3.6.1.1.2	INTEGER	read-write	This object specifies the type of remote agent ID to be used by the DHCP relay agent. It can be set to macAddress, hostName or ridString.
INT cienaCesDhcpRelayAgentL2State	1.3.6.1.4.1.1271.2.3.6.1.1.3	INTEGER	read-write	Specifies the global administrative state of the DHCP L2 relay agent.
INT cienaCesDhcpRelayAgentReplaceOption82	1.3.6.1.4.1.1271.2.3.6.1.1.4	INTEGER	read-write	Specifies whether or not the relay agent should replace an existing option 82.
cienaCesDhcpRelayAgentL2StateTable	1.3.6.1.4.1.1271.2.3.6.1.2		not-accessible	Tables that allow changing the configuration of DHCP relay agent functionality for each cienaCesDhcpRelayAgentVs.
cienaCesDhcpRelayAgentL2StateEntry	1.3.6.1.4.1.1271.2.3.6.1.2.1		not-accessible	Entry in the table to configure DHCP relay agent functionality.
INT cienaCesDhcpRelayAgentVsIndex	1.3.6.1.4.1.1271.2.3.6.1.2.1.1	INTEGER	not-accessible	This MIB object specifies the VS on which DHCP relay agent is configured.
INT cienaCesDhcpRelayAgentRlan	1.3.6.1.4.1.1271.2.3.6.1.2.1.2	INTEGER	not-accessible	This MIB object specifies the RLAN on which the DHCP relay agent is configured.
INT cienaCesDhcpRelayAgentL2AdminState	1.3.6.1.4.1.1271.2.3.6.1.2.1.3	INTEGER	read-create	This object allows the disabling or enabling of DHCP relay agent functionality on the given VS.
INT cienaCesDhcpRelayAgentL2OperState	1.3.6.1.4.1.1271.2.3.6.1.2.1.4	INTEGER	read-only	This object shows the operational state of the DHCP relay agent on the given VS.
T/F cienaCesDhcpRelayAgentL2StatsClear	1.3.6.1.4.1.1271.2.3.6.1.2.1.5	TruthValue	read-write	This MIB object when set to 'true' clears DHCP relay agent statistics for the given VS.
ROW cienaCesDhcpRelayAgentL2RowStatus	1.3.6.1.4.1.1271.2.3.6.1.2.1.6	RowStatus	read-create	Set this MIB object to 'Destroy' to terminate DHCP L2 relaying on the VS specified by cienaCesDhcpRelayAgentVs and cienaCesDhcpRelayAgentRlan. Set this MIB object to 'CreateAndGo' to create DHCP L2 relaying on the VS along with cienaCesDhcpRelayAgentVsIndex and cienaCesDhcpRelayAgentRlan.
cienaCesDhcpRelayAgentTrustTable	1.3.6.1.4.1.1271.2.3.6.1.5		not-accessible	This table is used to specify the DHCP relay attributes of logical interfaces to which DHCP relay agents are attached. Entries in this table are created when a DHCP relay agent is created and attached to a VS that already has logical interfaces, or when logical interfaces are added to a VS for which a DHCP relay is already created and attached.
cienaCesDhcpRelayAgentTrustEntry	1.3.6.1.4.1.1271.2.3.6.1.5.1		not-accessible	Each entry in this table can be used to specify the LI and VS to be trusted.
DHC cienaCesDhcpRelayAgentTrustedLiType	1.3.6.1.4.1.1271.2.3.6.1.5.1.1	DhcpLiType	not-accessible	This MIB object is used as an index in the table and is used to specify the LI type.
INT cienaCesDhcpRelayAgentTrustedLiIndex	1.3.6.1.4.1.1271.2.3.6.1.5.1.2	INTEGER	not-accessible	This MIB object is used as an index in the table and is used to specify the LI index.
INT cienaCesDhcpRelayAgentTrustMode	1.3.6.1.4.1.1271.2.3.6.1.5.1.3	INTEGER	read-create	This MIB object is used to set the port as client trusted, server trusted, dual-role trusted or not trusted.
STR cienaCesDhcpRelayAgentCidString	1.3.6.1.4.1.1271.2.3.6.1.5.1.4	DisplayString	read-create	This object is used to get and set the CID string for the logical interface.
STR cienaCesDhcpRelayAgentRidString	1.3.6.1.4.1.1271.2.3.6.1.5.1.5	DisplayString	read-create	This object is used to get and set the RID string for the logical interface.
cienaCesDhcpRelayAgentL2StatsTable	1.3.6.1.4.1.1271.2.3.6.1.6		not-accessible	Table to display L2 statistics for each cienaCesDhcpRelayAgentVs.
cienaCesDhcpRelayAgentL2StatsEntry	1.3.6.1.4.1.1271.2.3.6.1.6.1		not-accessible	Entry in the table to display L2 statistics.
C32 cienaCesDhcpRelayAgentL2IpSecHeaders	1.3.6.1.4.1.1271.2.3.6.1.6.1.1	Counter32	read-only	This MIB object reports the number of packets that include IP Sec headers.
C32 cienaCesDhcpRelayAgentL2Option82Added	1.3.6.1.4.1.1271.2.3.6.1.6.1.2	Counter32	read-only	This MIB object reports the number of packets that have had option 82 added.
C32 cienaCesDhcpRelayAgentL2Option82Removed	1.3.6.1.4.1.1271.2.3.6.1.6.1.3	Counter32	read-only	This MIB object reports the number of packets that have had option 82 removed.
C32 cienaCesDhcpRelayAgentL2UntrustedClientPortPktsRx	1.3.6.1.4.1.1271.2.3.6.1.6.1.4	Counter32	read-only	This MIB object reports the number of packets received on untrusted client ports.
C32 cienaCesDhcpRelayAgentL2UntrustedServerPortPktsRx	1.3.6.1.4.1.1271.2.3.6.1.6.1.5	Counter32	read-only	This MIB object reports the number of packets received from untrusted server ports.
C32 cienaCesDhcpRelayAgentL2SpoofedDhcpPkts	1.3.6.1.4.1.1271.2.3.6.1.6.1.6	Counter32	read-only	This MIB object reports the number of spoofed DHCP packets.
C32 cienaCesDhcpRelayAgentL2Option82ExceedMTU	1.3.6.1.4.1.1271.2.3.6.1.6.1.7	Counter32	read-only	This MIB object reports the number of packets with DHCP option 82 that would exceed the MTU. The option 82 is not added and the original DHCP packet is forwarded.
C32 cienaCesDhcpRelayAgentL2NoTrustedServerPktDrop	1.3.6.1.4.1.1271.2.3.6.1.6.1.8	Counter32	read-only	This MIB object reports the number of DHCP packets dropped because there are no server trusted ports configured.
C32 cienaCesDhcpRelayAgentL2NoTrustedClientPktDrop	1.3.6.1.4.1.1271.2.3.6.1.6.1.9	Counter32	read-only	This MIB object reports the number of DHCP packets dropped because there are no client trusted ports configured.
C32 cienaCesDhcpRelayAgentL2InvalidConfigPktDrop	1.3.6.1.4.1.1271.2.3.6.1.6.1.10	Counter32	read-only	This MIB object reports the number of DHCP packets dropped because the L2 relay agent configuration is invalid.
C32 cienaCesDhcpRelayAgentL2GeneralErrors	1.3.6.1.4.1.1271.2.3.6.1.6.1.11	Counter32	read-only	This MIB object reports the number of general errors encountered by the L2 relay agent.
C32 cienaCesDhcpRelayAgentL2Option82Replaced	1.3.6.1.4.1.1271.2.3.6.1.6.1.12	Counter32	read-only	This MIB object reports the number of packets that have had option 82 replaced.
C32 cienaCesDhcpRelayAgentL2ForRelay	1.3.6.1.4.1.1271.2.3.6.1.6.1.13	Counter32	read-only	This MIB object reports the number of packets received by the relay that were actually intended for the relay.
C32 cienaCesDhcpRelayAgentL2ClientRelayed	1.3.6.1.4.1.1271.2.3.6.1.6.1.14	Counter32	read-only	This MIB object reports the number of client messages relayed.
C32 cienaCesDhcpRelayAgentL2ServerRelayed	1.3.6.1.4.1.1271.2.3.6.1.6.1.15	Counter32	read-only	This MIB object reports the number of server messages relayed.
cienaCesDhcpRelayAgentGlobalStats	1.3.6.1.4.1.1271.2.3.6.1.7
T/F cienaCesDhcpRelayAgentL2GlobalStatsClear	1.3.6.1.4.1.1271.2.3.6.1.7.1	TruthValue	read-write	This object, when set to 'true', clears the global statistics for the L2 DHCP relay.
C32 cienaCesDhcpRelayAgentL2Relayed	1.3.6.1.4.1.1271.2.3.6.1.7.2	Counter32	read-only	This object reports the number of packets that passed through the L2 relays (processed and not dropped).
C32 cienaCesDhcpRelayAgentL2Dropped	1.3.6.1.4.1.1271.2.3.6.1.7.3	Counter32	read-only	This object reports the number of packets dropped by the relay. Inspect the detailed statistic on each relay for more details related to dropped frames.
C32 cienaCesDhcpRelayAgentL2Forwarded	1.3.6.1.4.1.1271.2.3.6.1.7.4	Counter32	read-only	This object reports the number of packets forwarded rather than relayed. These are valid frames that didn't need to be processed by the relay.
C32 cienaCesDhcpRelayAgentL2NotForRelay	1.3.6.1.4.1.1271.2.3.6.1.7.5	Counter32	read-only	This object reports the number of packets received by the relay but not intended for the relay. Inspect the detailed statistic on each relay for more details related to dropped frames.

RFC description

Manages DHCP relay agent configuration and statistics for Ciena CES carrier Ethernet switches and service delivery platforms.

Start monitoring Ciena CES (Carrier Ethernet Switch) platforms 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 CIENA-CES-DHCP-RELAY-MIB

What Is CIENA-CES-DHCP-RELAY-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description