R3166-R3206-HP High-End Firewalls Network Management Command Reference-6PW101

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NOTE:
A
s the size of MTU decreases, the number of fra
g
ments
g
rows. When settin
g
MTU for an interface, you
should consider QoS queue len
g
ths (for example, the default FIFO queue len
g
th is 75) to avoid a too small
MTU causing packet drop in QoS queuing. To achieve the best result, you can tune MTU with the mtu
command or QoS queue lengths with the qos fifo queue-length command. For more information about
QoS, see
Network Management Configuration Guide .
Examples
# Set the MTU to 1430 bytes for the Layer 3 Ethernet interface GigabitEthernet 0/0.
<Sysname> system-view
[Sysname] interface gigabitethernet 0/0
[Sysname-GigabitEthernet0/0] mtu 1430
# Set the MTU to 1480 bytes for the Layer 3 Ethernet subinterface GigabitEthernet0/0.1.
<Sysname> system-view
[Sysname] interface gigabitethernet 0/0.1
[Sysname-GigabitEthernet0/0.1] mtu 1480
timer hold
Syntax
timer hold seconds
undo timer hold
View
Layer 3 Ethernet interface view
Default level
2: System level
Parameters
seconds: Sets the link change suppression interval, ranging from 0 to 32767 seconds. A value of 0
disables link change suppression.
Description
Use the timer hold command to set the link change suppression interval for a Layer 3 Ethernet interface.
Use the undo timer hold command to restore the default.
By default, the link change suppression interval of a Layer 3 Ethernet interface is 10 seconds.
To enable link change suppression for a connection, set the same link change suppression interval at
both ends of the connection.
NOTE:
You can increase the pollin
g
interval to reduce ne
g
ative effect on network traffic due to network time delay
or heavy congestion.
Examples
# Set the link change suppression interval to 20 seconds for Layer 3 Ethernet interface GigabitEthernet
0/0.