issPortCtrlSwitchModeType
ARICENT-ISS-MIB ·
.1.3.6.1.4.1.2076.81.2.2.1.22
Object
column
r/w
Enumeration
This object is used to configure switching mode configuration
per port-level.
Switching mode can be configured only for physical ports.
When configured as StoreForward(2), the port operates in a
store-and-forward mode and the switch checks each frame for
cyclic redundancy check (CRC) errors before forwarding them
to the network. Each frame is stored until the entire frame
has been received and checked. Because the switch waits for
forwarding the frame until the entire frame has been received
and checked, the switching speed in Store-Forward switching
mode is slower than the switching speed in Cut-Through
switching modes.
When configured any of the cut-through modes, the switch
operates in Cut-Through switching mode and start forwarding
the frame as soon as the switch has read the destination
details in the packet header. A switch in Cut-Through mode
forwards the data before it has completed receiving the
entire frame. The switching speed in Cut-Through mode is
faster than the switching speed in Store-Forward switching
mode.
Switching mode configuration:
CutThroughSameSpeed(1) : Cut-through forwarding between same speed
ports
StoreForward(2) : Store and forward switching mode
CutThroughSlowToFast(3): Cut-through forwarding between slower to
faster speed ports.
CutThroughFastToSlow(4): Cut-through forwarding between faster to
slower speed ports.
NOTE:
Few platforms supports extended Cut-Through mode for ports with
mismatched speeds.(eg. slow-to-fast, fast-to-slow).
Platforms which doesn't support extended Cut-Through mode,
Cut-Through same speed shall be considered as Cut-Through
switching mode
Context
- MIB
- ARICENT-ISS-MIB
- OID
.1.3.6.1.4.1.2076.81.2.2.1.22- Type
- column
- Access
- readwrite
- Status
- current
- Parent
- issPortCtrlEntry
Syntax
Enumeration
Values & Constraints
Enumerated Values
1 | cutThroughSameSpeed |
2 | storeForward |
3 | cutThroughSlowToFast |
4 | cutThroughFastToSlow |