prConStackFwdingMode OBJECT-TYPE
SYNTAX INTEGER {
fastForward (1),
fragmentFree (2),
storeAndForward (3),
intelligent (4)
}
ACCESS read-only
STATUS mandatory
DESCRIPTION "This object controls whether cut-thru is enabled on the
stack. Enabling cut-through can help to minimise the delay
experienced by packets before they are forwarded to their
destination. Setting the mode to
astForward causes frame
forwarding to begin as soon as 32 bytes of the frame have been received.
Setting it to
ragmentFree causes frame forwarding to begin when 64
bytes have been received. This is slower, but eliminates the risk of
forwarding an illegally short frame to the destination port, however a
valid length frame might still be forwarded even though it had a CRC
error. Setting this object to storeAndForward disables the cut-through
completely, and frames will not be forwarded until they have been
received in their entirety.
When the mode is set to intelligent, the effective switching mode is
set initially to fast forward. The switch then monitors the total error
rate of frames received on each port, and if it exceeds, say 20 error
frames a second, it changes the effective mode for the port to store and
forward. If the error rate then drops to zero the effective mode is
restored to fast forward. The actual error rates may differ for different
switches.
Whatever forwarding mode is selected, cut-through cannot operate if the
destination port is currently involved in cut-through from another port.
In this case the device will process the frame in store and forward
mode."
View at oid-info.com
This object controls whether cut-thru is enabled on the stack.
Enabling cut-through can help to minimise the delay experienced
by packets before they are forwarded to their destination.
Setting the mode to 'fastForward' causes frame forwarding to
begin as soon as 32 bytes of the frame have been received.
Setting it to 'fragmentFree' causes frame forwarding to begin
when 64 bytes have been received. This is slower, but eliminates
the risk of forwarding an illegally short frame to the
destination port, however a valid length frame might still be
forwarded even though it had a CRC error. Setting this object to
'storeAndForward' disables the cut-through completely, and
frames will not be forwarded until they have been received in
their entirety.
When the mode is set to intelligent, the effective switching
mode is set initially to fast forward. The switch then monitors
the total error rate of frames received on each port, and if it
exceeds, say 20 error frames a second, it changes the effective
mode for the port to store and forward. If the error rate then
drops to zero the effective mode is restored to fast forward.
The actual error rates may differ for different switches.
Whatever forwarding mode is selected, cut-through cannot operate
if the destination port is currently involved in 'cut-through'
from another port. In this case the device will process the
frame in store and forward mode.
Parsed from file 3COM0420.MIB.txt
Company: a3com
Module: A3COM0420-SWITCH-EXTENSIONS
Automatically extracted from a file named S3M_AGENT
prConStackFwdingMode OBJECT-TYPE SYNTAX INTEGER { fastForward(1), fragmentFree(2), storeAndForward(3), intelligent(4) } ACCESS read-write STATUS mandatory DESCRIPTION "This object controls whether cut-thru is enabled on the stack. Enabling cut-through can help to minimise the delay experienced by packets before they are forwarded to their destination. Setting the mode to 'fastForward' causes frame forwarding to begin as soon as 32 bytes of the frame have been received. Setting it to 'fragmentFree' causes frame forwarding to begin when 64 bytes have been received. This is slower, but eliminates the risk of forwarding an illegally short frame to the destination port, however a valid length frame might still be forwarded even though it had a CRC error. Setting this object to 'storeAndForward' disables the cut-through completely, and frames will not be forwarded until they have been received in their entirety. When the mode is set to intelligent, the effective switching mode is set initially to fast forward. The switch then monitors the total error rate of frames received on each port, and if it exceeds, say 20 error frames a second, it changes the effective mode for the port to store and forward. If the error rate then drops to zero the effective mode is restored to fast forward. The actual error rates may differ for different switches. Whatever forwarding mode is selected, cut-through cannot operate if the destination port is currently involved in 'cut-through' from another port. In this case the device will process the frame in store and forward mode." ::= { stackConfigGroup 1 }
| OID | Name | Sub children | Sub Nodes Total | Description |
|---|---|---|---|---|
| 1.3.6.1.4.1.43.10.34.1.1.0 | prConStackFwdingMode | 0 | 0 | None |
| OID | Name | Sub children | Sub Nodes Total | Description |
|---|---|---|---|---|
| 1.3.6.1.4.1.43.10.34.1.2 | prConStackPaceMode | 1 | 1 | This object specifies the type of backoff algorithm used on the units in the stack. Any suitable port can use the standard ethern… |
| 1.3.6.1.4.1.43.10.34.1.3 | prConStackVLANConfigMode | 1 | 1 | This object specifies the VLAN mode to be used. Setting it to portMode(2) requires the user to configure each port's VLAN members… |
| 1.3.6.1.4.1.43.10.34.1.4 | prConStackRAPStudyPort | 1 | 1 | This determines the ifIndex of the port a user wishes to monitor on the copy port. Monitoring causes all data from the study por… |
| 1.3.6.1.4.1.43.10.34.1.5 | prConStackRAPCopyPort | 1 | 1 | This is the value of ifIndex specifying the port to which data will be copied (mirrored), and must be set to a valid value, along… |
| 1.3.6.1.4.1.43.10.34.1.6 | prConStackRAPEnable | 1 | 1 | This object controls the Roving Analysis Port (RAP) feature in conjunction with prConStackRAPStudyPort and prConStackRAPCopyPort.… |
| 1.3.6.1.4.1.43.10.34.1.7 | prConStackBridgeMode | 1 | 1 | prConStackBridgeMode OBJECT-TYPE SYNTAX INTEGER { single (1), multiple (2) } ACCESS read-only STATUS mandatory DESCRIPTION "The… |
| 1.3.6.1.4.1.43.10.34.1.9 | prConStackIpTos | 1 | 1 | This object is used to enable the classification of packets based upon the value of their IPToS field. When enabled, the packet's… |
| 1.3.6.1.4.1.43.10.34.1.10 | prConStackPktRateControl | 1 | 1 | This object controls whether the packet rate control feature is enabled or disabled. Products which do not support this feature… |
| 1.3.6.1.4.1.43.10.34.1.11 | prConStackPktRateLimit | 1 | 1 | This object specifies the maximum rate at which the selected types of packet may be received from a port before excess packets ar… |
| 1.3.6.1.4.1.43.10.34.1.12 | prConStackStpProtocolVersion | 1 | 1 | The version of the Spanning Tree Protocol that is to be used by this Bridge. stpVersion0(0) The original version of Spanning… |
| 1.3.6.1.4.1.43.10.34.1.13 | prConStackStpPathCostDefault | 1 | 1 | The version of the Spanning Tree default Path Costs that are to be used by this Bridge. stp8021d1998(1) Path Costs from IEEE … |
| 1.3.6.1.4.1.43.10.34.1.14 | prConStackLacpOperInfo | 1 | 1 | This object shall contain a value indicating that LACP is operational, or not operational. If not operational, all units need to … |
| 1.3.6.1.4.1.43.10.34.1.15 | prConStackFastLeaveEnabled | 0 | 0 | prConStackFastLeaveEnabled OBJECT-TYPE SYNTAX INTEGER { off(1), on(2) } ACCESS read-write STATUS mandatory DESCRIPTION "This ob… |
| 1.3.6.1.4.1.43.10.34.1.16 | prConStackQueueServicingOper | 0 | 0 | prConStackQueueServicingOper OBJECT-TYPE SYNTAX prConStackQueueServicingMode ACCESS read-only STATUS mandatory DESCRIPTION "Thi… |
| 1.3.6.1.4.1.43.10.34.1.17 | prConStackQueueServicingAdmin | 0 | 0 | prConStackQueueServicingAdmin OBJECT-TYPE SYNTAX prConStackQueueServicingMode ACCESS read-write STATUS mandatory DESCRIPTION "T… |