R0106-HP MSR Router Series Interface Configuration Guide(V7)

6
Step Command Remarks
3. Change the link mode of the
Ethernet interface.
port link-mode { bridge | route }
By default, the following
interfaces operate as Layer 2
Ethernet interfaces:
Ethernet interfaces on a
SIC-4FSW, SIC-4GSW,
DSIC-9FSW, HMIM-8GSW, or
HMIM-24GSW interface card.
Configuring jumbo frame support
An Ethernet interface might receive some frames larger than the standard Ethernet frame size (called
"jumbo frames") during high-throughput data exchanges, such as file transfers.
The Ethernet interface processes jumbo frames in the following ways:
• When the Ethernet interface is configured to deny jumbo frames, the Ethernet interface discards
jumbo frames without further processing.
• When the Ethernet interface is configured with jumbo frame support, the Ethernet interface:
{ Processes jumbo frames within the specified length.
{ Discards jumbo frames beyond the specified length without further processing.
To configure jumbo frame support in interface view:
Step Command Remarks
1. Enter system view.
system-view N/A
2. Enter Ethernet interface view.
interface interface-type
interface-number
N/A
3. Configure jumbo frame
support.
jumboframe enable [ value ]
By default, the device allows jumbo
frames within the specified length to
pass through all Layer 2 Ethernet
interfaces. The length of jumbo frames
that are allowed to pass depends on
the device model. For more
information, see Interface Command
References.
If you set the value argument multiple
times, the most recent configuration
takes effect.
Configuring dampening on an Ethernet interface
The interface dampening feature uses an exponential decay mechanism to suppress the effects of
excessive interface flapping events on routing protocols and routing tables in the network. Suppressing
interface state change events protects the system processing resources.
If an interface is not dampened, its state changes are reported. For each state change, the system also
generates an SNMP notification and log message.