IBM 8275-416, Руководство пользователя

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Remote monitoring (RMON) MIB (RFC 1757)
The RMON MIB defines objects that allow a device to act like a network traffic
analyzer monitoring flows and gathering data for all traffic on the network with
varying degrees of detail. It is recommended that a Remote Monitor application be
used to manipulate RMON MIB objects. Unexpected results can occur if an SNMP
MIB browser is used to manipulate RMON MIB objects.
Note: The switch only supports up to 10 history buckets per history instance.
IBM 8275-416 switch enterprise MIB
Many of the items needed to obtain information from a switch are not available in
standard MIBs. A private MIB for the switch (referred to as the IBM 8275-416
Switch Enterprise MIB) was created for these items.
The following objects in the 8275-416 MIB are not supported by this version of
code:
v
swPortMonitorNetworkConnection
v
swDevTrapConsole
Whenever the above objects are accessed, the switch will return an SNMP
GetResponse-PDU[2] error-status = no SuchName(2)
Port ifIndex values
When you use SNMP, the interface index (ifIndex) is sometimes used to identify the
specific interface being addressed. On the switch, each Ethernet port is an interface
and so is the IP agent being used to manage it (which is also referred to as the
Management Interface).
The total number of ifIndex values in the switch is the number of installed ports plus
1. The “1” is for the Management Interface. The port ifIndex values for the switch
ports start with 1 and increment by 1 for each port physically in the box. Each
ifIndex value maps, one for one, with an Ethernet port. Example scenarios:
v
If there are 32 ports (16 base ports, 8 ports in slot 1, 8 ports in slot 2)
– ifIndex 1 is slot 0, port1
– ifIndex 9 is slot 0, port 9
– ifIndex 17 is slot 1, port 1
– ifIndex 25 is slot 2, port 1
v
If there are 24 ports (16 base ports, 8 ports in slot 2)
– ifIndex 1 is slot 0, port 1
– ifIndex 9 is slot 0, port 9
– ifIndex 25 is slot 2, port 1
v
If there are 28 ports (16 base ports, 4 ports in slot 1 and the ports are on the
right side of the card, 8 ports in slot 2)
– ifIndex 1 is slot 0, port 1
– ifIndex 9 is slot 0, port 9
– ifIndex 21 is slot 1, port 1
– ifIndex 25 is slot 2, port 1
The management interface will always have an ifIndex of 1000.
Chapter 6. Using the SNMP Interface
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