H3C-NPV-MIB

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Organization: Hangzhou H3C Tech. Co., Ltd.

Last Updated: 2013-04-02

Category: Fibre Channel and Storage, Vendor: H3C/HH3C

Description: H3C MIB for N_Port Virtualization (NPV) in Fibre Channel SANs managing proxy N_Port connections to the fabric.

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What Is H3C-NPV-MIB?

This is a vendor-specific MIB from H3C for managing N_Port Virtualization (NPV) on its Fibre Channel SAN switches, a feature that lets edge switches pass traffic to an NPV core switch without consuming a full Fibre Channel domain ID. It exposes configuration objects for traffic-map load balancing across VSANs, mapping of server-facing (proxy) ports to external uplink ports, and tables describing server interfaces and their associated external interface indices. Its monitoring value centers on configuration/operational status of the SAN fabric edge: administrators check h3cNpvTrafficMapConfigTable entries and h3cNpvTrafficMapLastChange to confirm traffic distribution across uplinks is correctly configured and stable, and inspect h3cNpvServerIfTable to verify which server-facing ports are mapped to which external (core-facing) interfaces, revealing misconfigured or failed proxy-port mappings. It depends conceptually on Fibre Channel fabric standards (FC-SW, VSAN concepts as used in Cisco/H3C SAN implementations) though it is a private H3C module. It is deployed on H3C Fibre Channel or FCoE switches operating in NPV mode at the edge of a storage area network. Network engineers evaluating or troubleshooting this functionality can download the H3C-NPV-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in H3C-NPV-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

H3C Fibre Channel/FCoE SAN switch operating in NPV mode

Monitoring Examples

An admin inspects h3cNpvTrafficMapConfigTable/h3cNpvTrafficMapConfigEntry, checking h3cNpvTrafficMapExternalIfIndexList and h3cNpvTrafficMapRowStatus to confirm a VSAN's traffic is load-balanced across the intended set of external uplinks, and watches h3cNpvTrafficMapLastChange to detect an unexpected reconfiguration. The h3cNpvServerIfTable (h3cNpvServerIfEntry, keyed by h3cNpvExternalIfIndex) is polled to verify each server-facing NPV port is correctly bound to a core-facing external interface, catching a server port left unmapped after a topology change. h3cNpvLoadbalanceVsan reports the global VSAN load-balancing policy in effect.

What Can Be Monitored

VSAN traffic load-balancing configuration
traffic map last-change timestamp
server-facing to external interface port mapping
NPV traffic map row status

Imported Objects

From H3C-FC-TC-MIB

H3cFcVsanIndex

From H3C-VSAN-MIB

h3cSan	MODULE-IDENTITY
h3cVsanIndex	OBJECT-TYPE

From IF-MIB

InterfaceIndex
ifIndex	OBJECT-TYPE

From SNMPv2-SMI

MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

RowStatus
TEXTUAL-CONVENTION
TimeStamp

OIDs

OID symbolic	OID numeric	Type	Access	Description
h3cNpv	1.3.6.1.4.1.2011.10.2.127.6			This MIB module is for the management of N_Port Virtualization or NPV within the framework of N_Port virtualization(NPV) architecture. N_Port virtualization reduces the number of Fibre Channel domain IDs in SANs(Storage Aera Network). Switches operating in the NPV mode do not join a fabric; rather, they pass traffic between NPV core switch links and end-devices, which eliminates the domain IDs for these edge switches. NPV core switch is a fibre channel edge switch connected to one or more NPV devices.
h3cNpvMibObjects	1.3.6.1.4.1.2011.10.2.127.6.1
h3cNpvConfiguration	1.3.6.1.4.1.2011.10.2.127.6.1.1
h3cNpvGlobalObjects	1.3.6.1.4.1.2011.10.2.127.6.1.1.1
H3C h3cNpvLoadbalanceVsan	1.3.6.1.4.1.2011.10.2.127.6.1.1.1.1	H3cFcVsanIndex	read-write	Used to trigger a load-banlancing in the specified VSAN (Virtual Storage Area Network). When the h3cNpvLoadbalanceVsan is set to a specific VSAN, a disruptive load-balancing process will be initiated in the VSAN so that all nodes in the VSAN will re-login to the core switch. This load-balancing process redistributes downlink traffic across all uplink interfaces for better load balancing, but it causes traffic interruption.
h3cNpvTrafficMapConfigTable	1.3.6.1.4.1.2011.10.2.127.6.1.1.2		not-accessible	A table containing information on the assignment of traffic map interfaces to an interface.
h3cNpvTrafficMapConfigEntry	1.3.6.1.4.1.2011.10.2.127.6.1.1.2.1		not-accessible	An entry in the h3cNpvTrafficMapConfigTable. This table contains entries for each of the interfaces which has been assigned a set of interfaces for traffic mapping in the VSAN. Traffic mapping is a technique used in NPV device to restrict the usage of external interface(s) for forwarding the traffic from server interface to the fibre channel fabric. If an interface comes up as a server interface and finds a corresponding entry in this table, then the switch software will assign a valid external interface from this list, if any. Once assigned, that assigned external interface will be used for forwarding the traffic from the server interface to the fibre channel fabric. If an interface comes up as a server interface and finds an entry in this table, but with no valid list of external interfaces, then the switch software keeps the server interface in operationally down state until at least one of the interface in the list becomes a valid external interface. If an interface comes up as a server interface and it can not find an entry in this table, then any of the available external interfaces can be assigned to that server interface. Entries in this table can be created or destroyed via h3cNpvTrafficMapRowStatus object. Columnar objects can be modified when the corresponding h3cNpvTrafficMapRowStatus is 'active'.
H3C h3cNpvTrafficMapExternalIfIndexList	1.3.6.1.4.1.2011.10.2.127.6.1.1.2.1.1	H3cNpvIfIndexList	read-create	The list of external interfaces which the traffic needs to be mapped to. This object is a list of interfaces presented as an octet string of interface indices or ifindex-es. The list should contain at least one interface and at most all the interfaces in the switch up to 16384 interfaces. The 16384 interfaces max-limit is due to the size of this object. Specifying this object is mandatory for the creation of a row in h3cNpvTrafficMapConfigTable.
TIM h3cNpvTrafficMapLastChange	1.3.6.1.4.1.2011.10.2.127.6.1.1.2.1.2	TimeStamp	read-only	The value of sysUpTime at the time of the latest change to this traffic map entry. When there has not been any change to the traffic map entry, the value of this field will be that of the entry creation time.
ROW h3cNpvTrafficMapRowStatus	1.3.6.1.4.1.2011.10.2.127.6.1.1.2.1.3	RowStatus	read-create	The status of this conceptual row. The row can be made 'active' only if value of corresponding instance of h3cNpvTrafficMapExternalIfIndexList is provided.
h3cNpvServerIfTable	1.3.6.1.4.1.2011.10.2.127.6.1.1.3		not-accessible	This table contains, one entry for each server interface(FC-port configured in F-port mode) in this VSAN in the Fabric element. Each entry contains NPV related information like external interface assigned for the server interface in the VSAN.
h3cNpvServerIfEntry	1.3.6.1.4.1.2011.10.2.127.6.1.1.3.1		not-accessible	An entry in the h3cNpvServerIfTable, containing NPV related parameters established by a server interface indicated by ifIndex.
NUM h3cNpvExternalIfIndex	1.3.6.1.4.1.2011.10.2.127.6.1.1.3.1.1	InterfaceIndex	read-only	This value of this object is the external interface assigned for the server interface associated with the server interface.

RFC description

H3C Networks N Port Virtualization MIB for managing and monitoring NPV mode in Fibre Channel switches and related fabric parameters.

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Download H3C-NPV-MIB

What Is H3C-NPV-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description