F10-FIB-MIB

All MIBs › F10-FIB-MIB

Organization: Dell Inc

Last Updated: 2011--0-7-

Category: IP and Core Protocols, Routing Protocols, Technology: Routing, Technology: Routing/L3, Vendor: Dell/DNOS

Description: Dell Force10 MIB for the Forwarding Information Base (FIB), exposing IPv4 and IPv6 routing table entries programmed to hardware.

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What Is F10-FIB-MIB?

F10-FIB-MIB is a Dell Force10 (Dell Networking OS) proprietary MIB that exposes the switch's Forwarding Information Base (FIB) - the hardware-programmed IPv4/IPv6 routing table used for actual packet forwarding, including CIDR multipath routes. It provides visibility into forwarding-table version numbers per address family and per-route forwarding entries (destination, mask, next hop, first hop, egress interface, and resolved MAC address). In a monitoring context it validates the software-level state of routing convergence, confirming routes have been correctly installed in hardware and helping detect stale or missing forwarding entries after a topology change or reboot. It builds on standard networking MIB conventions and complements Dell's own FORCE10-TC textual-convention MIB and standard IP forwarding-table concepts. This MIB is deployed in Dell Force10 data-center and campus core/aggregation switches and routers where operators need to verify hardware forwarding-table correctness. Network engineers evaluating or troubleshooting this functionality can download the F10-FIB-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in F10-FIB-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

Dell Force10 (Dell EMC Networking) switches and routers

Monitoring Examples

An admin would poll the f10IpForwardTable/f10IpForwardEntry to inspect entries such as f10IpforwardDest, f10IpforwardMask, f10IpforwardNextHop, and f10IpforwardIfIndex to confirm a specific destination prefix is correctly programmed with the expected next hop and egress interface. Cross-checking f10IpforwardMacAddress against the expected next-hop's resolved MAC can reveal an ARP/ND resolution failure causing traffic to black-hole. The companion f10IpForwardVersionTable (f10IpForwardVersion per f10IpForwardAddrFamily) lets an operator detect that the IPv4 or IPv6 forwarding table has changed, signaling a recent reconvergence event worth investigating.

What Can Be Monitored

IPv4/IPv6 forwarding table entries
route destination/mask/next-hop mapping
egress interface for forwarded routes
resolved next-hop MAC address
forwarding table version/change counter

Imported Objects

From F10-CHASSIS-MIB

chSysCardNumber

OBJECT-TYPE

From FORCE10-SMI

f10Mgmt

OBJECT-IDENTITY

From IF-MIB

InterfaceIndexOrZero

From INET-ADDRESS-MIB

InetAddress
InetAddressPrefixLength
InetAddressType

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter64
Gauge32
Integer32
IpAddress
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

MacAddress

How to Use in IPNetwork Monitor

Example using f10InetCidrIpv4RouteNumber OID:

Select a Dell Force10 switch/router (hardware Forwarding Information Base) 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 f10InetCidrIpv4RouteNumber into the Find box to locate it in the OID tree, then select it and click OK. The number of current f10InetCidrRouteTable entries that are not Invalid and whose f10InetCidrRouteDestType is ipv4(1). 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 Gauge32-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
f10IpForwardMib	1.3.6.1.4.1.6027.3.9			This MIB module is used to display CIDR multipath IP Routes.
f10IpForwardMibObjects	1.3.6.1.4.1.6027.3.9.1
f10IpForwardVersionTable	1.3.6.1.4.1.6027.3.9.1.1		not-accessible	This entity's IP forward version table.
f10IpForwardVersionEntry	1.3.6.1.4.1.6027.3.9.1.1.1		not-accessible	The row definition for the ip forward version Table.
IPt f10IpForwardAddrFamily	1.3.6.1.4.1.6027.3.9.1.1.1.1	InetAddressType	not-accessible	Address Family of the IP Forwarding Table for which this entry provides the Version information.
C64 f10IpForwardVersion	1.3.6.1.4.1.6027.3.9.1.1.1.2	Counter64	read-only	A version number on the Forwarding Table. This is always fetched from one line card.
f10IpForwardTable	1.3.6.1.4.1.6027.3.9.1.2		not-accessible	This entity's IP Routing table.
f10IpForwardEntry	1.3.6.1.4.1.6027.3.9.1.2.1		not-accessible	A particular route to a particular destination, under a particular policy.
IP f10IpforwardDest	1.3.6.1.4.1.6027.3.9.1.2.1.1	IpAddress	read-only	The destination IP address of this route. An entry with a value of 0.0.0.0 is considered a default route.
IP f10IpforwardMask	1.3.6.1.4.1.6027.3.9.1.2.1.2	IpAddress	read-only	Indicate the mask to be logical-ANDed with the destination address before being compared to the value in the f10IpforwardDest field.
IP f10IpforwardNextHop	1.3.6.1.4.1.6027.3.9.1.2.1.3	IpAddress	read-only	On remote routes, the address of the next system en route; Otherwise, 0.0.0.0.
IP f10IpforwardFirstHop	1.3.6.1.4.1.6027.3.9.1.2.1.4	IpAddress	read-only	On remote routes, the address of the Gateway to the nexthop; 0.0.0.0 if the Nexthop itself is a Gateway to the Destination
I32 f10IpforwardIfIndex	1.3.6.1.4.1.6027.3.9.1.2.1.5	Integer32	read-only	The ifIndex value which identifies the local interface through which the next hop of this route should be reached.
MAC f10IpforwardMacAddress	1.3.6.1.4.1.6027.3.9.1.2.1.6	MacAddress	read-only	The Mac address of the NextHop.
OCT f10IpforwardEgressPort	1.3.6.1.4.1.6027.3.9.1.2.1.7	OCTET STRING	read-only	The name of the egress port to which the packets will be forwarded.
I32 f10IpforwardCamIndex	1.3.6.1.4.1.6027.3.9.1.2.1.8	Integer32	read-only	Cam Entry corresponding to a row.
G32 f10InetCidrIpv4RouteNumberEx	1.3.6.1.4.1.6027.3.9.1.3	Gauge32	read-only	The number of current f10InetCidrRouteTable entries that are not Invalid and whose f10InetCidrRouteDestType is ipv4(1)
G32 f10InetCidrIpv6RouteNumber	1.3.6.1.4.1.6027.3.9.1.4	Gauge32	read-only	The number of current f10InetCidrRouteTable entries that are not Invalid and whose f10InetCidrRouteDestType is ipv6(2)
f10InetCidrRouteTable	1.3.6.1.4.1.6027.3.9.1.5		not-accessible	This entity's IP Routing table.
f10InetCidrRouteTableEntry	1.3.6.1.4.1.6027.3.9.1.5.1		not-accessible	A particular route to a particular destination Implementers need to be aware that if the total number of elements (octets or sub-identifiers) in inetCidrRouteDest, inetCidrRoutePolicy, and inetCidrRouteNextHop exceeds 111, then OIDs of column instances in this table will have more than 128 sub- identifiers and cannot be accessed using SNMPv1, SNMPv2c, or SNMPv3. For S-Series Platform, Value of chSysCardNumber will always be zero
IPt f10InetCidrRouteDestType	1.3.6.1.4.1.6027.3.9.1.5.1.1	InetAddressType	not-accessible	The type of the inetCidrRouteDest address, as defined in the InetAddress MIB. Only those address types that may appear in an actual routing table are allowed as values of this object.
IP f10InetCidrRouteDest	1.3.6.1.4.1.6027.3.9.1.5.1.2	InetAddress	not-accessible	The destination IP address of this route. The type of this address is determined by the value of the inetCidrRouteDestType object.
ADR f10InetCidrRoutePfxLen	1.3.6.1.4.1.6027.3.9.1.5.1.3	InetAddressPrefixLength	not-accessible	Indicates the number of leading one bits that form the mask to be logical-ANDed with the destination address before being compared to the value in the inetCidrRouteDest field.
IPt f10InetCidrRouteNextHopType	1.3.6.1.4.1.6027.3.9.1.5.1.4	InetAddressType	not-accessible	The type of the inetCidrRouteNextHop address, as defined in the InetAddress MIB. Value should be set to unknown(0) for non-remote routes. Only those address types that may appear in an actual routing table are allowed as values of this object.
IP f10InetCidrRouteNextHop	1.3.6.1.4.1.6027.3.9.1.5.1.5	InetAddress	not-accessible	On remote routes, the address of the next system en route. For non-remote routes, a zero length string. The type of this address is determined by the value of the inetCidrRouteNextHopType object.
IPt f10InetCidrRouteFirstHopType	1.3.6.1.4.1.6027.3.9.1.5.1.6	InetAddressType	not-accessible	The type of the inetCidrRouteFirstHop address, as defined in the InetAddress MIB. Value should be set to unknown(0) for non-remote routes. Only those address types that may appear in an actual routing table are allowed as values of this object.
IP f10InetCidrRouteFirstHop	1.3.6.1.4.1.6027.3.9.1.5.1.7	InetAddress	not-accessible	The address of the gateway to the Nexthop. If the nexthop itself is the gateway, a zero length string. The type of this address is determined by the value of the inetCidrRouteFirstHopType object.
NUM f10InetCidrRouteIfIndex	1.3.6.1.4.1.6027.3.9.1.5.1.8	InterfaceIndexOrZero	read-only	The ifIndex value that identifies the local interface through which the next hop of this route should be reached. A value of 0 is valid and represents the scenario where no interface is specified.
MAC f10InetCidrRouteMacAddress	1.3.6.1.4.1.6027.3.9.1.5.1.9	MacAddress	read-only	The Mac address of the NextHop.
OCT f10InetCidrRouteEgressPort	1.3.6.1.4.1.6027.3.9.1.5.1.10	OCTET STRING	read-only	The name of the egress port to which the packets will be forwarded.
U32 f10InetCidrRouteCamIndex	1.3.6.1.4.1.6027.3.9.1.5.1.11	Unsigned32	read-only	Cam Entry corresponding to a row.
f10IpForwardMibConformance	1.3.6.1.4.1.6027.3.9.2
f10IpForwardMibCompliances	1.3.6.1.4.1.6027.3.9.2.1
f10IpForwardMibCompliance	1.3.6.1.4.1.6027.3.9.2.1.1			The basic implementation requirements for the Dell Networking OS Ip Forward MIB.
f10IpForwardMibGroups	1.3.6.1.4.1.6027.3.9.2.2
f10IpForwardObjectGroup	1.3.6.1.4.1.6027.3.9.2.2.1			Objects for the IP aware Route Table.

RFC description

Dell Force10 Forwarding Information Base MIB for CIDR multipath IP route display with protocol independence.

Start monitoring Dell Force10 switch/router (hardware Forwarding Information Base) 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 F10-FIB-MIB