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Iftype for interfaces, Iftable attributes – Brocade Unified IP MIB Reference (Supporting FastIron Releases 07.5.00 and 08.0.10) User Manual

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Unified IP MIB Reference

53-1003106-01

RFC 2863: The Interfaces Group MIB

2

Virtual ports

Loopback ports

NOTE

The ifIndex should be derived from the snIfIndexLookupTable using the InterfaceId (in OID form),
instead of assuming that the ifIndex will always stay persistent across reloads.

On the following interfaces, IfIndex assignments are not persistent across reboots and switchover
operations:

MPLS tunnel interfaces

Trunk ports

GRE tunnels

IP tunnels

ifType for interfaces

On Brocade NetIron XMR, Brocade NetIron MLX, Brocade MLXe, Brocade NetIron CES, and Brocade
NetIron CER series devices, ifType for all Ethernet interfaces (10/100/1G/10G) returns the value
ethernetCsmacd(6) as mandated by RFC 2665.

If the command snmp-server legacy iftype is configured on the device CLI, ifType returns
gigabitEthernet(117) or fastEther(62). If the command is not configured (or no snmp-server legacy
iftype is issued), then ifType returns the value ethernetCsmacd(6).

Statistics for virtual routing interfaces on 8x10 modules

The ifTable and ifXTable display information for switched and routed packets on virtual routing
interface of the 8x10 modules installed on the Brocade MLXe, Brocade NetIron XMR, and Brocade
NetIron MLX, and Brocade MLXe devices. This feature is available on Brocade NetIron XMR,
Brocade NetIron MLX, and Brocade MLXe devices. The extended-counter routed-switched
command must be configured to enable separate accounting of routed and switched packets on
virtual routing interfaces.

ifTable attributes

The following MIB attributes of the ifTable return information for switched and routed packets for
the 8x10 modules on the Brocade NetIron devices.

MIB attribute

Physical

Virtual

Loopback

IP tunnel

MPLS
tunnel

Trunk

GRE tunnel

ifInOctets

Yes

Yes

No

No

No

Yes

Yes

ifOutOctets

Yes

Yes

No

No

Yes

Yes

Yes

ifInUcastPkts

Yes

Yes

No

Yes

No

Yes

No

ifOutUcastPkts

Yes

Yes

No

No

Yes

Yes

No

ifInNUcastPkts

Yes

No

No

No

No

Yes

No

ifInDiscards

Yes

No

No

No

No

Yes

No

ifInErrors

Yes

No

No

No

No

Yes

No

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