H3C S9500 Series Montageanleitung

Command Manual – MAC Address Table Management

H3C S9500 Series Routing Switches Table of Contents

Table of Contents

Chapter 1 MAC Address Table Management Commands.........................................................1-1

1.1 MAC Address Table Management Commands.................................................................1-1

1.1.1 display mac-address ...............................................................................................1-1

1.1.2 display mac-address aging-time .............................................................................1-2

1.1.3 display mac-limit......................................................................................................1-3

1.1.4 mac-address............................................................................................................1-3

1.1.5 mac-address max-mac-count..................................................................................1-4

1.1.6 mac-address max-mac-count enable......................................................................1-5

1.1.7 mac-address max-mac-count max-mac-num .........................................................1-7

1.1.8 mac-address timer ..................................................................................................1-8

1.1.9 mac-limit..................................................................................................................1-9

1.1.10 reset mac-address ..............................................................................................1-10

1.1.11 source-mac..........................................................................................................1-11

Chapter 2 Static Multicast MAC Address Group Configuration Commands ..........................2-1

2.1 Static Multicast MAC Address Group Configuration Commands......................................2-1

2.1.1 display mac-address multicast static....................................................................... 2-1

2.1.2 mac-address multicast............................................................................................ 2-2

2.1.3 reset mac-address multicast................................................................................... 2-3

Command Manual – MAC Address Table Management

H3C S9500 Series Routing Switches Chapter 1 MAC Address Table Management

Commands

1-1

Chapter 1 MAC Address Table Management

Commands

Note:

For details of the commands mac-address static vsi and display mac-address vsi,

refer to the MPLS-VPLS Commands in the MPLS VPN Volume.

1.1 MAC Address Table Management Commands

1.1.1 display mac-address

Syntax

display mac-address [ mac-addr [ vlan vlan-id ] | [ static | dynamic ] [ interface

interface-type interface-number ] [ vlan vlan-id ] [ count ] ]

View

Any view

Parameters

mac-addr: Specifies a MAC address.

vlan-id: Specifies a VLAN ID.

static: Specifies static MAC address entries. Once being saved, the static entries can

survive reboot and unless being removed manually, will never age out.

dynamic: Specifies dynamic MAC address entries. Dynamic entries will age out.

interface-type interface-number: Interface type and interface number.

count: Specifies to display the total number of MAC addresses in the MAC address

table.

Description

Use the display mac-address command to display MAC address table entries.

When managing the Layer-2 addresses of the switch, you can perform this command

to display Layer-2 address entries, whether they are dynamic or static, which ports they

belong to, which VLANs they belong to, and whether they have been aged out.

Command Manual – MAC Address Table Management

H3C S9500 Series Routing Switches Chapter 1 MAC Address Table Management

Commands

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Related commands: mac-address, mac-address timer.

Examples

# Display the entry for MAC address 000f-e201-0101.

<H3C> display mac-address 000f-e201-0101

MAC ADDR VLAN ID STATE PORT INDEX AGING TIME(s)

000f-e201-0101 1 Learned Ethernet1/1/1 AGING

Table 1-1 Description on the fields of the display mac-address command

Field Description

MAC ADDR MAC address

VLAN ID The VLAN that the MAC address belongs to

STATE State of the MAC address, which can be Learned for

dynamic, or Config static for static

PORT INDEX The forwarding port

AGING TIME(s) The aging time

1.1.2 display mac-address aging-time

Syntax

display mac-address aging-time

View

Any view

Parameters

None

Description

Use the display mac-address aging-time command to display the aging time of the

dynamic entry in the MAC address table.

Related commands: mac-address, mac-address timer, display mac-address.

Examples

# Display the aging time of the dynamic entry in the MAC address table.

<H3C> display mac-address aging-time

mac-address aging-time: 300s

The above information indicates that the aging time of the dynamic entry in the MAC

address is 300 seconds.

Command Manual – MAC Address Table Management

H3C S9500 Series Routing Switches Chapter 1 MAC Address Table Management

Commands

1-3

1.1.3 display mac-limit

Syntax

display mac-limit

View

Any view

Parameters

None

Description

Use the display mac-limit command to display the bindings between MAC addresses

and aggregation groups.

Related commands: mac-limit.

Examples

# Display the bindings between MAC addresses and aggregation groups in the system.

<H3C> display mac-limit

MAC Address Group-ID

0000-0000-0001 2

0000-0000-0001 1

0000-0000-0002 3

Total : 3 mac-limit entries

The above information indicates that MAC address 0000-0000-0001 is assigned to

aggregation groups 1 and 2, and MAC address 0000-0000-0002 is assigned to

aggregation group 3.

1.1.4 mac-address

Syntax

mac-address { static | dynamic }mac-addr interface interface-type interface-number

vlan vlan-id

undo mac-address [ static | dynamic ] [ mac-addr [interface interface-type

interface-number vlan vlan-id | interface interface-type interface-number | vlan

vlan-id ]

View

System view

Command Manual – MAC Address Table Management

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Commands

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Parameters

static: Static table entry, lost after resetting switch.

dynamic: Dynamic table entry, which will be aged.

mac-addr: MAC address.

interface-type interface-number: Interface type and interface number.

vlan-id: VLAN ID.

Description

Use the mac-address command to add/modify the MAC address table entry.

Use the undo mac-address command to cancel the MAC address table entry.

Note that:

zIf you entered an existing MAC address, you are actually editing the entry. If the

MAC address is a dynamic one, you can change it to static. If it is a static one, you

cannot change it.

zIn addition to deleting all the addresseson a port, you can choose to delete just the

dynamic or static addresses.

zIf you do not save your configuration, both the static and dynamic entries will be

lost after the device resets. If you save the configuration, only the dynamic entries

will be lost.

Related commands: display mac-address.

Examples

# Configure a static MAC address entry for MAC address 000f-e201-0101, setting its

corresponding port to Ethernet 2/1/1.

<H3C> system-view

System View: return to User View with Ctrl+Z.

[H3C] mac-address static 000f-e201-0101 interface ethernet 2/1/1 vlan 2

1.1.5 mac-address max-mac-count

Syntax

mac-address max-mac-count count

undo mac-address max-mac-count

View

Ethernet port view

Command Manual – MAC Address Table Management

H3C S9500 Series Routing Switches Chapter 1 MAC Address Table Management

Commands

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Parameters

count: Maximum number ofMAC addresses learned by a port, ranging from 0 to 14,336,

the value of 0 means that address learning is disabled.

Description

Use the mac-address max-mac-count command to set the maximum number of MAC

addresses learned by an Ethernet port.

Use the undo mac-address max-mac-count command to remove the limit on the

maximum number of MAC addresses learned by an Ethernet port.

By default, a port can learn as many MAC addresses as a board can have. You can

change the default value by using this command: if you set the value to count, and

when the number of MAC addresses learned by the port reaches this value, this port

will no longer learn any more MAC addresses; and you can use the undo

mac-address max-mac-count command to remove the limit on the number.

Note:

zThe maximum number of MAC addresses of a board ranges from 12 K to 16 K

depending on various software versions and board types.

zThe aforementioned number of MAC addresses includes only the MAC addresses

learned by the switch dynamically, and excludes those configured by the user.

zWhen executing the mac-address max-mac-count command, if the current

number of MAC addresses exceeds the threshold value, the switch neither delete

the present MAC address entries nor learn new MAC address until the number of

entries less than the threshold value after some entries are aged out.

Related commands: mac-address, mac-address timer.

Examples

Set the maximum number of MAC addresses learned by Ethernet port Ethernet 3/1/3 to

600.

<H3C> system-view

System View: return to User View with Ctrl+Z.

[H3C] interface Ethernet 3/1/3

[H3C-Ethernet3/1/3] mac-address max-mac-count 600

1.1.6 mac-address max-mac-count enable

Syntax

mac-address max-mac-count enable { alarm |forward } *

Command Manual – MAC Address Table Management

H3C S9500 Series Routing Switches Chapter 1 MAC Address Table Management

Commands

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undo mac-address max-mac-count enable { alarm | forward } *

View

Ethernet port view

Parameters

None

Description

Use the mac-address max-mac-count enable { alarm |forward } * command to

enable the switch to send alarms to the network administrator and forward the packets

whose source MAC addresses are not learned by the port when the number of MAC

addresses automatically learned by the port reaches the threshold value.

Use the undo mac-address max-mac-count enable { alarm | forward } *command

to disable the function.

Use the mac-address max-mac-count enable forward command to enable the

switch to forward the packets whose source MAC addresses are not learned by the port

when the number of MAC addresses automatically learned by the port reaches the

threshold value.

Use the undo mac-address max-mac-count enable forward command to enable the

switch to drop the packets whose source MAC addresses are not learned by the port

when the number of MAC addresses automatically learned by the port reaches the

threshold value.

Use the mac-address max-mac-count enable alarm command to enable the switch

to send alarms to the network administrator when the number of MAC addresses

automatically learned by the port reaches the threshold value.

Use the undo mac-address max-mac-count enable alarm command to remove this

configuration.

By default, the switch forwards the packets whose source MAC addresses are not

learned by the port when the number of MAC addresses automatically learned by the

port reaches the threshold value.

After the mac-address max-mac-count enable { alarm | forward } *command is

executed, if the MAC addresses learned by a port reach the maximum number of MAC

addresses that the port can learned, the port will send an alarm to network

administrator to prompt that the port will no longer learn any MAC addresses.

Related commands: mac-address,mac-address timer.

Command Manual – MAC Address Table Management

H3C S9500 Series Routing Switches Chapter 1 MAC Address Table Management

Commands

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Note:

zThe maximum number of MAC addresses of a board ranges from 12 K to 16 K

depending on various software versions and board types.

zThe aforementioned number of MAC addresses includes only the MAC addresses

learned by the switch dynamically, and excludes those configured by the user.

zWhen executing the mac-address max-mac-count command, if the current

number of MAC addresses exceeds the threshold value, the switch neither delete

the present MAC address entries nor learn new MAC address until the number of

entries less than the threshold value after some entries are aged out.

Examples

# Set the maximum number of MAC addresses learned by Ethernet port Ethernet 3/1/3

to 600, and the switch will give an alarm to the network administrator and forward the

packets when the number of MAC addresses learned exceeds 600.

<H3C> system-view

System View: return to User View with Ctrl+Z.

[H3C] interface Ethernet 3/1/3

[H3C-Ethernet3/1/3] mac-address max-mac-count 600

[H3C-Ethernet3/1/3] mac-address max-mac-count enable forward alarm

# Set the maximum number of MAC addresses learned by Ethernet 3/1/3 to 600. When

the number of MAC addresses exceeds this value, the switch drops the packets whose

MAC addresses are not learned by the port.

<H3C> system-view

System View: return to User View with Ctrl+Z.

[H3C] interface Ethernet 3/1/3

[H3C-Ethernet3/1/3] mac-address max-mac-count 600

[H3C-Ethernet3/1/3] undo mac-address max-mac-count enable forward

# Cancel the alarm function

[H3C-Ethernet3/1/3] undo mac-address max-mac-count enable alarm

1.1.7 mac-address max-mac-count max-mac-num

Syntax

mac-address max-mac-count max-mac-num

undo mac-address max-mac-count

View

VLAN view

Command Manual – MAC Address Table Management

H3C S9500 Series Routing Switches Chapter 1 MAC Address Table Management

Commands

1-8

Parameters

max-mac-num: Maximum number of MAC addresses that can be learned in a VLAN.

This argument ranges from 0 to 65535. Value of 0 disables MAC address learning.

Description

Use the mac-address max-mac-count command to set the maximum number of MAC

addresses that can be learned in VLAN.

Use the undo mac-address max-mac-count command to cancel the configuration.

If you have set the maximum number, MAC addresses will not be learned in the VLAN

when the maximum number is reached.

By default, the number of learned MAC addresses is not limited in a VLAN.

Note:

If you execute this command with the max-mac-num argument less than the current

number of MAC addresses learned, the switch does not remove the existing MAC

address entries, neither does it learns new MAC addresses. The switch resumes MAC

address learning when the number of MAC addresses learned is less than the value

specified by the max-mac-num argument.

Related commands: mac-address, mac-address timer.

Examples

# Set the maximum number of learned MAC addresses in a VLAN 100 to 600.

<H3C> system-view

System View: return to User View with Ctrl+Z.

[H3C] vlan 100

[H3C-vlan100] mac-address max-mac-count 600

1.1.8 mac-address timer

Syntax

mac-address timer {aging age |no-aging }

undo mac-address timer aging

View

System view

Command Manual – MAC Address Table Management

H3C S9500 Series Routing Switches Chapter 1 MAC Address Table Management

Commands

1-9

Parameters

aging age: Specifies the aging time (measured in seconds) of the Layer-2 dynamic

address table entry, ranging from 10 to 630. By default, the aging time is 300 seconds.

no-aging : No aging time.

Description

Use the mac-address timer command to configure the aging time of the Layer-2

dynamic address table entry.

Use the undo mac-address timer command to restore the default value.

If aging time is too short, the MAC address might be deleted before the switch gets the

address information. That way the switch broadcasts the received packets to all the

ports within the VLAN. This will affect the switch operation performance.

If aging time is too long, the switch will store a great number of out-of-date MAC

address tables. This will consume MAC address table resources and the switch will not

be able to update MAC address table according to the network change.

Caution:

The aging of dynamic MAC address is completed during the second aging cycle that

has been configured.

Examples

# Configure the entry aging time of Layer 2 dynamic address table to be 500 seconds.

<H3C> system-view

System View: return to User View with Ctrl+Z.

[H3C] mac-address timer aging 500

1.1.9 mac-limit

Syntax

mac-limit mac-address restrict to group groupid

undo mac-limit [mac-address restrict to group groupid ]

View

System view

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