HP FlexNetwork 5130 HI series User Manual (English)

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Usage guidelines

This command takes effect after you configure it on the interface at either end of a link and the two

interfaces are configured to automatically negotiate the speed.

This command is applicable only to GE interfaces.

Examples

# Enable automatic negotiation for speed downgrading on GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] speed auto downgrade

Layer 2 Ethernet interface commands

broadcast-suppression

Use broadcast-suppression to enable broadcast suppression and set the broadcast suppression

threshold.

Use undo broadcast-suppression to restore the default.

Syntax

broadcast-suppression { ratio | pps max-pps | kbps max-kbps }

undo broadcast-suppression

Default

Ethernet interfaces do not suppress broadcast traffic.

Views

Layer 2 Ethernet interface view

Predefined user roles

network-admin

Parameters

ratio: Sets the broadcast suppression threshold as a percentage of the maximum interface rate. The

value range for this argument is 0 to 100. The smaller the percentage, the less broadcast traffic is

allowed to pass through.

pps max-pps: Specifies the maximum number of broadcast packets that the interface can forward

per second. The value range for the max-pps argument (in pps) is 0 to 1.4881 × the maximum

interface rate. For example, the value range for this argument is 0 to 1488100 on a GE interface and

0 to 59524000 on a 40-GE interface.

kbps max-kbps: Specifies the maximum number of kilobits of broadcast traffic that the Ethernet

interface can forward per second. The value range for this argument (in kbps) is 0 to the maximum

interface rate.

Usage guidelines

You can use the broadcast storm suppression function to limit the size of broadcast traffic on an

interface. When the broadcast traffic on the interface exceeds this threshold, the system drops

packets until the traffic drops below this threshold.

Both storm-constrain and broadcast-suppression can suppress broadcast storm on a port. The

storm-constrain command uses software to suppress broadcast traffic, and it affects the device

performance to a certain extent. The broadcast-suppression command uses the chip to physically

suppress broadcast traffic, and it has less influence on the device performance than the

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HP FlexNetwork 5130 HI series Specifications

General

Model	HP FlexNetwork 5130 HI series
Category	Switch
Switch Type	Managed
Layer	Layer 3
Power over Ethernet (PoE)	Available on some models
Fans	Hot-swappable fans
Management	CLI, Web GUI, SNMP, RMON, HP Intelligent Management Center
Routing Protocol	RIP, OSPF, BGP, IS-IS, Static Routing
Layer 3 Features	VRRP
Security Features	ACLs, IEEE 802.1X, RADIUS, TACACS+, SSH, SSL
Quality of Service (QoS)	DiffServ
Weight	Varies by model
Operating Temperature	0°C to 45°C
VLANs	4094
Operating Humidity	10% to 95% non-condensing