R3102-R3103-HP 6600/HSR6600 Routers Interface Configuration Guide

11
Ste
p
Command Remarks
3. Set the broadcast
suppression threshold
ratio.
broadcast-suppression { ratio
| pps max-pps | kbps
max-kbps }
Optional.
By default, broadcast traffic is allowed to pass
through an interface.
4. Set the multicast
suppression threshold
ratio.
multicast-suppression { ratio |
pps max-pps | kbps
max-kbps }
Optional.
By default, multicast traffic is allowed to pass
through an interface.
5. Set the unknown
unicast suppression
threshold ratio.
unicast-suppression { ratio |
pps max-pps | kbps
max-kbps }
Optional.
By default, unknown unicast traffic is allowed
to pass through an interface.
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. Usually, an Ethernet
interface discards jumbo frames. With jumbo frame support enabled, the interface can process frames
larger than the standard Ethernet frame size yet within the specified range.
In interface configuration mode (Ethernet interface view or port group view), you can set the length of
jumbo frames that are allowed to pass through Ethernet interfaces, as follows:
• If you execute the command in Ethernet interface view, the configuration takes effect only on the
interface.
• If you execute the command in port group view, the configuration takes effect on all ports in the port
group.
To configure jumbo frame support in interface view or port group view:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Configure jumbo
frame support.
• (Method 1) In port group view:
a. port-group manual port-group-name
b. jumboframe enable [ value ]
• (Method 2) In Ethernet interface view:
c. interface interface-type interface-number
d. jumboframe enable [ value ]
Use one of the methods.
By default, the device
allows jumbo frames within
the specified length to pass
through all Layer 2 Ethernet
interfaces.
Enabling loopback detection on an Ethernet interface
If a device receives a packet that it sent, a loop has occurred to the device. Loops might cause broadcast
storms, which degrade network performance. You can use this feature to detect whether a loop has
occurred.
Single-port loopback occurs when an interface receives a packet that it sent and the receiving interface
is the same as the sending interface, as shown in Figure 2.