SNMP Configuration and Management Manual

TCP/IP Subagent
SNMP Configuration and Management Manual—424777-006
8-33
MIB Objects
ifMtu
1.3.6.1.2.1.2.2.1.4
read-only
INTEGER
The size of the
largest datagram that
can be sent or
received on the
interface, in octets.
The value depends on the ifType value, as
follows:
ifType
ifMtu
6 or 7 On D series,
value of ZMAX-REQ-SIZE
field of ZLAM-DDL-INFO-
PORT structure
6 On G series (SLSA),
ifMtu obtained using the call
LM_Get_Attributes_ on PIF
name
9 ifMtu is the value of ZMAX-
REQ-SIZE field of the ZLAM
-DDL-INFO-PORT structure
obtained from the SPI INFO
command on PORT #SNAP of
the TLAM process
24 0
A SPI INFO command on SUBNET
ztsaTcpIpProcess.* returns a
corresponding TLAM process name. A SPI
INFO command on PORT #IP of the TLAM
process returns ZMAX-REQ-SIZE value.
The largest value possible is 32,000 bytes.
ifType 5 (X.25) is not supported in this
implementation).
If ifType is 24 (loopback), ifMtu is set to 0 to
alert the SNMP manager that this value is
meaningless for a loopback interface.
ifSpeed
1.3.6.1.2.1.2.2.1.5
read-only
Gauge
An estimate of the
interface’s current
bandwidth, in bits per
second.
Constant value that depends on the ifType
value, as follows:
ifType
ifSpeed
5 (X.25) 0
6 (TLAM) 10,000,000
6 (SLSA) call LM_Get_Attributes_
on PIF name
7 (88023) 10,000,000
9 (tokenring) value of ZRING-SPEED
field of ZLAM-DDL-
INFO-SERV-8023 structure
24 (loopback) 0
Table 8-5. Interfaces Group Objects Supported by TCP/IP Subagent (page 3 of 7)
Object and
Attributes Definition Format and Derivation of Value