- Cabletron IP Router Reference Guide

2-4
TCP/IP MIB-II
ifDescr {ifEntry 2}
DisplayString Read-Only
A textual description of the port. One of the following text strings:
• Ethernet/802.3 TP
• Network Management Port (this is the UART port)
• Fast Ethernet/802.3u TP (twisted pair connection)
• Fast Ethernet/802.3u FX (fiber connection)
• Fast Ethenet/802.3u T4 (2 twisted pairs, category 5)
ifType {ifEntry 3}
Integer Read-Only
The type of the port, i.e., one of the following:
• (6) - ethernet-csmacd
• (23) - ppp (for the UART port).
ifMtu {ifEntry 4}
Integer Read-Only
The size (in bytes) of the largest network datagram which may be
sent or received on the port. This does not include the MAC
header, LLC header, and FCS. For CSMA/CD ports, the Ethernet
Frame Type is considered part of the MAC header, but there is no
LLC header. Specifying a value of zero in a SetRequest indicates
that the interface is to default to the largest MTU available for that
media. The effective value is always returned in the GetResponse.
ifSpeed {ifEntry 5}
Integer Read-Only
The port’s estimated MAC-level bandwidth, in bits per second.
The bandwidth will be in the range 1,200 - 100,000,000.