Specifications

Elastic Networks Appendix C: SNMP MIBs
08-01101-01, Rev. 1.50 BitStorm 1900™ Installation and Maintenance Guide C-169
IfMtu The size of the largest datagram
that can be sent/received on the
interface, specified in octets. For
interfaces that are used for trans-
mitting network datagrams, this is
the size of the largest network data-
gram that can be sent on the inter-
face.
Read-only The largest size of Ethernet
frame, 1518 bytes.
The largest size of HDLC
frame, for EtherLoop interface
is 1522 bytes.
IfSpeed An estimate of the interface's cur-
rent bandwidth in bits per second.
For interfaces that do not vary in
bandwidth or for those where no
accurate estimation can be made,
this object should contain the nomi-
nal bandwidth.
Read-only The bandwidth for the Ethernet
interface would be 10/100 Mbps
For the EtherLoop interface, the
current bandwidth can be deter-
mined from the modulation and
symbolrate for the maximum
trained speed.
The extents GetPortInfo(Gener-
alOp) and GetModemSpeed-
Info(SpeedOp) can be used to
determine the bandwidth.
IfPhysAddress The interface's address at the pro-
tocol layer immediately `below' the
network layer in the protocol stack.
For interfaces that do not have
such an address (e.g., a serial line),
this object should contain an octet
string of zero length.
Read-only For EtherLoop and Ethernet
Interfaces on the Line cards, it
is the MAC address of the CO
modem. The CO MAC
addresses can be retrieved by
a broadcast extent RWMac-
Addr(MemoryOp).
For the MIU port, it is the MAC
address of the MIU.
IfAdminStatus The desired state of the interface.
The testing(3) state indicates that
no operational packets can be
passed.
• up(1) -- ready to pass packets
• down(2)
• testing(3) -- in some test mode
Read-write The desired status is up (1) by
default. It is a settable attribute
and so can be changed on
Manager request.
The EtherLoop interface status
may be changed (enable/dis-
able) by the extent EnablePort
(MultiportOp).
There is no implementation for
changing the Ethernet interface
status (enable/disable).
The status testing (3) is not
applicable.
The Interface Group
Variable Description Accessibility Implementation