H3C S9500 Series Operating instructions

Operation Manual – Port

H3C S9500 Series Routing Switches Table of Contents

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Table of Contents

Chapter 1 Port Configuration Overview......................................................................................1-1

Chapter 2 Ethernet Port Configuration .......................................................................................2-1

2.1 Ethernet Port Overview......................................................................................................2-1

2.2 Ethernet Port Configuration...............................................................................................2-1

2.2.1 Entering Ethernet Port View....................................................................................2-1

2.2.2 Enabling/Disabling an Ethernet Port.......................................................................2-2

2.2.3 Setting Ethernet Port Description............................................................................2-2

2.2.4 Setting the Duplex Attribute of the Ethernet Port....................................................2-2

2.2.5 Setting Speed on the Ethernet Port ........................................................................2-3

2.2.6 Setting the Cable Type for the Ethernet Port..........................................................2-3

2.2.7 Enabling/Disabling Flow Control for the Ethernet Port............................................2-4

2.2.8 Enabling/Disabling Jumbo Frames’ Passing a Card...............................................2-4

2.2.9 Setting Broadcast/Multicast Suppression on Ethernet Port....................................2-5

2.2.10 Setting the Ethernet Port Mode.............................................................................2-6

2.2.11 Setting the Link Type for the Ethernet Port...........................................................2-6

2.2.12 Adding the Ethernet Port to Specified VLANs.......................................................2-7

2.2.13 Setting the Default VLAN ID for the Ethernet Port................................................2-8

2.2.14 Setting the VLAN VPN Feature on a Port.............................................................2-8

2.2.15 Copying Port Configurations to Other Ports..........................................................2-9

2.2.16 Setting Port Hold Time........................................................................................2-11

2.2.17 Setting the Ethernet Port in Loopback Mode......................................................2-11

2.3 Displaying and Debugging Ethernet Port ........................................................................2-12

2.4 Ethernet Port Configuration Example..............................................................................2-13

2.5 Ethernet Port Troubleshooting.........................................................................................2-13

Chapter 3 Link Aggregation Configuration ................................................................................3-1

3.1 Overview............................................................................................................................3-1

3.1.1 Introduction to Link Aggregation .............................................................................3-1

3.1.2 Introduction to LACP...............................................................................................3-1

3.1.3 Aggregation Types..................................................................................................3-2

3.1.4 Load Sharing...........................................................................................................3-4

3.2 Link Aggregation Configuration .........................................................................................3-5

3.2.1 Enabling/Disabling LACP at Port ............................................................................3-6

3.2.2 Creating/Deleting an Aggregation Group................................................................3-6

3.2.3 Adding/Deleting an Ethernet Port into/from an Aggregation Group........................3-7

3.2.4 Configuring/Deleting Aggregation Group Description.............................................3-8

3.2.5 Configuring System Priority.....................................................................................3-8

3.2.6 Configuring Port Priority..........................................................................................3-9

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3.3 Displaying and Debugging Link Aggregation.....................................................................3-9

3.4 Link Aggregation Configuration Example........................................................................3-10

Chapter 4 POS Port Configuration ..............................................................................................4-1

4.1 POS Port Overview............................................................................................................4-1

4.2 POS Port Configuration.....................................................................................................4-1

4.2.1 Entering POS Port View..........................................................................................4-1

4.2.2 Adding/Deleting POS Port into/from VLAN.............................................................4-2

4.2.3 Enabling/Disabling POS Port..................................................................................4-2

4.2.4 Configuring POS Port Description...........................................................................4-2

4.2.5 Setting Frame Format of POS Port.........................................................................4-3

4.2.6 Setting Scrambling Function of POS Port...............................................................4-3

4.2.7 Setting Alarm Threshold for the POS Port..............................................................4-3

4.2.8 Setting Clock Mode on POS Port............................................................................4-4

4.2.9 Setting Polling Interval of the State Timer on POS Port.........................................4-4

4.2.10 Setting CRC Check Bit Length of POS Port .........................................................4-5

4.2.11 Setting Loopback Mode of POS Port....................................................................4-5

4.2.12 Setting Overhead Byte Type of POS Port.............................................................4-6

4.2.13 Setting Timeout Time for PPP Negotiation...........................................................4-7

4.2.14 Setting MTU of POS Port......................................................................................4-7

4.3 Displaying and Debugging POS Port Configuration..........................................................4-7

4.4 POS Port Configuration Example......................................................................................4-8

4.5 Troubleshooting POS Port Configuration..........................................................................4-9

Chapter 5 RPR Port Configuration ..............................................................................................5-1

5.1 RPR Standard Overview....................................................................................................5-1

5.1.1 RPR Port Overview.................................................................................................5-1

5.2 Configuring RPR Ports ......................................................................................................5-1

5.2.1 Configuration Preparations .....................................................................................5-1

5.2.2 RPR Port Configuration Tasks................................................................................5-2

5.2.3 Configuration Example............................................................................................5-5

5.3 Displaying and Debugging RPR Port Configuration..........................................................5-6

Chapter 6 IDS Linkage Configuration..........................................................................................6-1

6.1 Overview............................................................................................................................6-1

6.1.1 Necessity.................................................................................................................6-1

6.1.2 Operations Involved................................................................................................6-1

6.2 Requirements for Switch (Router) .....................................................................................6-1

6.2.1 Requirements for IDS..............................................................................................6-1

6.3 Linkage Configuration of IDS with the Switch (Router) .....................................................6-2

6.3.1 Configuration Description........................................................................................6-2

6.3.2 Configuration Tasks ................................................................................................6-2

6.4 IDS Linkage Configuration Example..................................................................................6-3

6.5 Displaying IDS Linkage Configuration...............................................................................6-5

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Chapter 7 Port Isolation Configuration.......................................................................................7-1

7.1 Port Isolation Overview......................................................................................................7-1

7.2 Configuration Tasks...........................................................................................................7-1

7.2.1 Configuring an Isolated Group................................................................................7-1

7.2.2 Configuring an Uplink Port in the Isolated Group.................................................... 7-2

7.2.3 Configuring Isolated Ports for an Isolated Group....................................................7-2

7.3 Port Isolation Configuration Example ................................................................................7-3

Chapter 8 Packet Statistics Configuration ................................................................................. 8-1

8.1 Introduction to Egress Packet Statistics ............................................................................8-1

8.1.1 Configuring Egress Packet Statistics Counters ......................................................8-1

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H3C S9500 Series Routing Switches Chapter 1 Port Configuration Overview

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Chapter 1 Port Configuration Overview

The H3C S9500 Series Routing Switches (hereinafter referred to as S9500 series)

support these LPU boards:

z XP2

z XP4

z XK1

z GT8P

z F32G

z GP12

z GP24

z GT12

z GT24

z GV48

z FP20

z FT48

z P4G8

z SP4

z UP1

z VP2

The Ethernet ports of S9500 series have the following features:

z XP2 provides two 10GE optical ports and works in 10 Gbps full duplex mode

without user intervention.

z XP4 provides four 10GE optical ports and works in 10 Gbps full duplex mode

without user intervention.

z XK1 provides one 10GE optical/electrical port and works in 10 Gbps full duplex

mode without user intervention.

z GT8P provides four 1000 Mbps SFP optical ports and eight 10/100/1000 Mbps

electrical ports. The optical ports in 1000 Mbps full duplex mode without user

intervention. The electrical ports support auto-MDI/MDI-X and can work in 1000

Mbps full duplex, 100 Mbps half/full duplex, or 10 Mbps half/full duplex mode.

z F32G provides 32 × 10/100 Mbps electrical ports and four 1000 Mbps optical ports.

The 10/100 Mbps electrical ports support auto-MDI/MDI-X and can work in half

duplex, full duplex or auto-negotiation mode. They can negotiate with other

network devices to choose optimum duplex mode and speed. The 1000 Mbps

optical ports work in 1000 Mbps full duplex mode without user intervention.

z GP12 provides 12 × 1000 Mbps optical ports and works in 1000 Mbps full duplex

mode without user intervention.

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z GP24 provides 24 × 1000 Mbps optical/electrical ports and works in 1000 Mbps

full duplex mode without user intervention.

z GT12 provides 12 × 10/100/1000 Mbps electrical ports, supports auto-MDI/MDI-X,

and can work in 1000 Mbps full duplex, 100 Mbps half/full duplex, or 10 Mbps

half/full duplex mode.

z GT24 provides 24 × 10/100/1000 Mbps electrical ports, supports auto-MDI/MDI-X,

and can work in 1000 Mbps full duplex, 100 Mbps half/full duplex, or 10 Mbps

half/full duplex mode.

z GV48 provides 48 × 10/100/1000 Mbps electrical ports, which work in 1000 Mbps

full duplex mode (the rate and duplex mode are user configurable), and supports

POE power supply.

z FP20 provides 20 × 100 Mbps optical ports and works in 100 Mbps full duplex

mode without user intervention.

z FT48 provides 48 × 10/100 Mbps electrical ports, supports auto-MDI/MDI-X, and

can work in half duplex, full duplex or auto-negotiation mode. It can negotiate with

other network devices to choose optimum duplex mode and speed.

z P4G8 provides four POS ports and eight 1000 Mbps optical ports. The POS ports

work at the speed of 155 Mbps; the 1000 Mbps optical ports work in 1000 Mbps full

duplex mode without user intervention.

z SP4 provides four 2.5 Gbps POS optical ports. The POS ports work at the speed

of 2.5 Gbps without user intervention.

z UP1 provides one 10 Gbps POS optical ports. The POS ports work at the speed of

10 Gbps without user intervention.

z VP2 provides two 10 Gbps RPR ports. The RPR ports work at the speed of 10

Gbps without user intervention.

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Chapter 2 Ethernet Port Configuration

2.1 Ethernet Port Overview

S9500 series can provide conventional Ethernet ports, fast Ethernet ports, 1000 Mbps

Ethernet ports and 10 Gbps Ethernet ports. The configurations of these Ethernet ports

are basically the same, which will be described in the following sections.

2.2 Ethernet Port Configuration

The following sections describe Ethernet port configuration tasks:

z Entering Ethernet Port View

z Enabling/Disabling an Ethernet Port

z Setting Ethernet Port Description

z Setting the Duplex Attribute of the Ethernet Port

z Setting Speed on the Ethernet Port

z Setting the Cable Type for the Ethernet Port

z Enabling/Disabling Flow Control for the Ethernet Port

z Enabling/Disabling Jumbo Frames’ Passing a Card

z Setting Broadcast/Multicast Suppression on Ethernet Port

z Setting the Ethernet Port Mode

z Setting the Link Type for the Ethernet Port

z Adding the Ethernet Port to Specified VLANs

z Setting the Default VLAN ID for the Ethernet Port

z Setting the VLAN VPN Feature on a Port

z Copying Port Configurations to Other Ports

z Setting Port Hold Time

z Setting the Ethernet Port in Loopback Mode

2.2.1 Entering Ethernet Port View

Before configuring the Ethernet port, enter Ethernet port view first.

Perform the following configuration in system view.

Table 2-1 Entering Ethernet port view

Operation Command

Enter Ethernet port view

interface interface-type interface-number

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2.2.2 Enabling/Disabling an Ethernet Port

After configuring the related parameters and protocol of the port, you can use undo

shutdown command to enable the port. If you do not want a port to forward data any

more, use shutdown command to disable it.

Perform the following configuration in Ethernet port view.

Table 2-2 Enabling/disabling an Ethernet port

Operation Command

Disable an Ethernet port

shutdown

Enable an Ethernet port

undo shutdown

By default, the port is enabled.

2.2.3 Setting Ethernet Port Description

To distinguish the Ethernet ports, you can use the following command to make some

necessary descriptions.

Perform the following configuration in Ethernet port view.

Table 2-3 Setting Ethernet port description

Operation Command

Set an Ethernet port description

description text

Delete the Ethernet port description

undo description

By default, an Ethernet port has no description.

2.2.4 Setting the Duplex Attribute of the Ethernet Port

To configure a port to send and receive data packets at the same time, set it to

full-duplex. To configure a port to either send or receive data packets at a time, set it to

half-duplex. If the port has been set to auto-negotiation mode, the local and peer ports

will automatically negotiate about the duplex mode.

Perform the following configuration in Ethernet port view.

Table 2-4 Setting the duplex attribute for the Ethernet port

Operation Command

Set duplex attribute for Ethernet port duplex { auto | full | half }

Restore the default duplex attribute of Ethernet port

undo duplex

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Note that, 10/100 Mbps electrical Ethernet port can operate in full-duplex, half-duplex

or auto-negotiation mode. The10/100/1000 Mbps electrical Ethernet port can operate in

full duplex, half duplex or auto-negotiation mode. When the port operates at 1000 Mbps

or in auto mode, the duplex mode can be set to full (full duplex) or auto

(auto-negotiation). The optical 100/1000 Mbps and 10 Gbps Ethernet ports work in full

duplex mode without user intervention.

The port defaults the auto (auto-negotiation) mode.

2.2.5 Setting Speed on the Ethernet Port

You can use the following command to set the speed on the Ethernet port. If the speed

is set to auto-negotiation mode, the local and peer ports will automatically negotiate

about the port speed.

Perform the following configuration in Ethernet port view.

Table 2-5 Setting speed on the Ethernet port

Operation Command

Set Ethernet port speed speed { 10 | 100 | 1000 | 10000 | auto }

Restore the default speed on Ethernet

port

undo speed

Note that, the 10/100 Mbps electrical Ethernet port can operate at 10 Mbps, 100 Mbps

and in auto mode. You can set it accordingly. The 10/100/1000Mbps electrical Ethernet

port can operate at 10 Mbps, 100 Mbps, or 1000 Mbps as per different requirements.

However in half duplex mode, the port cannot operate at 1000 Mbps or in auto mode.

The 100 Mbps optical Ethernet port supports 100 Mbps; the 1000 Mbps optical

Ethernet port supports 1000 Mbps; the 10 Gbps optical Ethernet port supports 10 Gbps

without user intervention.

By default, the speed of the port is in auto mode.

2.2.6 Setting the Cable Type for the Ethernet Port

The Ethernet port supports the straight-through and cross-over network cables. The

following command can be used for configuring the cable type.

Perform the following configuration in Ethernet port view.

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Table 2-6 Setting the type of the cable connected to the Ethernet port

Operation Command

Set the type of the cable connected to

the Ethernet port

mdi { across | auto | normal }

Restore the default type of the cable

connected to the Ethernet port

undo mdi

Note that, the settings only take effect on 10/100 Mbps and 10/100/1000 Mbps

electrical ports.

By default, the cable type is auto (auto-recognized). That is, the system can

automatically recognize the type of cable connecting to the port.

2.2.7 Enabling/Disabling Flow Control for the Ethernet Port

After enabling flow control in both the local and the peer switch, if congestion occurs in

the local switch, the switch will inform its peer to pause packet sending. Once the peer

switch receives this message, it will pause packet sending, and vice versa. In this way,

packet loss is reduced effectively. The flow control function of the Ethernet port can be

enabled or disabled through the following command.

Perform the following configuration in Ethernet port view.

Table 2-7 Enabling/disabling flow control for the Ethernet port

Operation Command

Enable Ethernet port flow control

flow-control

Disable Ethernet port flow control

undo flow-control

By default, Ethernet port flow control is disabled.

2.2.8 Enabling/Disabling Jumbo Frames’ Passing a Card

During large throughput data switching, like file transmission, a card may encounter

jumbo frames larger than the standard Ethernet frame length. The following command

can be used to enable jumbo frames to pass a card or disable them from passing a

card.

Perform the following configuration in system view.

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Table 2-8 Enabling/disabling jumbo frames’ passing a card

Operation Command

Enable Jumbo frames to pass the card on a

specified slot, and set the maximum length

of Jumbo frames allowed to pass the card

jumboframe enable

[ jumboframe-value ] slot slot-num

Disable Jumbo frames from passing the card

on a specified slot

jumboframe disable slot slot-num

By default, jumbo frames are allowed to pass cards.

 Note:

The system supports discrete values of Jumbo frame lengths ranging from 1536 to

10240. However, effective Jumbo frame values fall into several sections: the effective

Jumbo frame value for the 1536-1552 section is 1552, that for the 1552-9022 section is

9022, that for the 9022-9122 section is 9122, and that for the 9122-10240 section is

10240.

2.2.9 Setting Broadcast/Multicast Suppression on Ethernet Port

To prevent port congestion resulting from broadcast/multicast packet flooding, the

switch supports broadcast/multicast suppression. You can enable broadcast/multicast

suppression by setting the speed percentage or bandwidth values..

Perform the following configuration in Ethernet port view.

Table 2-9 Setting broadcast/multicast suppression on Ethernet port

Operation Command

Configure broadcast suppression ration

Ethernet port

broadcast-suppression { ratio |

bandwidth bandwidth }

Restore the default setting of broadcast

suppression on Ethernet port

undo broadcast-suppression

Configure multicast suppression ration

Ethernet port

multicast-suppression { ratio |

bandwidth bandwidth }

Restore the default setting of multicast

suppression on Ethernet port

undo multicast-suppression

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Caution:

z You cannot enable both broadcast suppression and multicast suppression

simultaneously on the same card. Namely, once you have enabled broadcast

suppression on some ports of a card, you cannot enable multicast suppression on

the other ports of the card, and vice versa.

z If multicast suppression is enabled, broadcast packets are also suppressed at the

same time, while broadcast suppression does not work on multicast suppression.

z No distinction is made between known multicast and unknown multicast for

multicast suppression.

By default, the broadcast suppression ratio is 50%, while the multicast suppression

ratio is 100%.

2.2.10 Setting the Ethernet Port Mode

Most ports adopt the LAN mode for general data exchange. The port must work in WAN

mode, however, if it needs special frame format for data transfer (such as in fiber

transmission). You can configure network mode available on the port using the

port-mode command.

Perform the following configuration in Ethernet port view.

Table 2-10 Setting the Ethernet port mode

Operation Command

Set the Ethernet port mode port-mode { wan | lan }

Restore the default Ethernet port mode

undo port-mode

By default, Ethernet ports works in LAN mode. 10GE Ethernet ports support WAN

mode.

2.2.11 Setting the Link Type for the Ethernet Port

Ethernet port can operate in three different link types, access, hybrid, and trunk types.

The access port carries one VLAN only, used for connecting to the user’s computer.

The trunk port can belong to more than one VLAN and receive/send the packets on

multiple VLANs, used for connection between the switches. The hybrid port can also

carry more than one VLAN and receive/send the packets on multiple VLANs, used for

connecting both the switches and user’s computers. The difference between the hybrid

port and the trunk port is that the hybrid port allows the packets from multiple VLANs to

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be sent without tags, but the trunk port only allows the packets from the default VLAN to

be sent without tags.

Perform the following configuration in Ethernet port view.

Table 2-11 Setting the link type for the Ethernet port

Operation Command

Configure the port as access port

port link-type access

Configure the port as hybrid port

port link-type hybrid

Configure the port as trunk port

port link-type trunk

Restore the default link type, that is, the

access port

undo port link-type

You can configure three types of ports concurrently on the same switch, but you cannot

switch between trunk port and hybrid port. You must turn it first into access port and

then set it as other type. For example, you cannot configure a trunk port directly as

hybrid port, but first set it as access port and then as hybrid port.

By default, the port is access port.

2.2.12 Adding the Ethernet Port to Specified VLANs

The following commands are used for adding an Ethernet port to a specified VLAN. The

access port can only be added to one VLAN, while the hybrid and trunk ports can be

added to multiple VLANs.

Perform the following configuration in Ethernet port view.

Table 2-12 Adding the Ethernet port to specified VLANs

Operation Command

Add the current access port to a

specified VLAN

port access vlan vlan-id

Add the current hybrid port to specified

VLANs

port hybrid vlan vlan-id-list { tagged |

untagged }

Add the current trunk port to specified

VLANs

port trunk permit vlan { vlan-id-list |

all }

Remove the current access port from to

a specified VLAN

undo port access vlan

Remove the current hybrid port from to

specified VLANs

undo port hybrid vlan vlan-id-list

Remove the current trunk port from

specified VLANs

undo port trunk permit vlan

{ vlan-id-list | all }

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Note that the access port shall be added to an existing VLAN other than VLAN 1. The

VLAN to which Hybrid port is added must have been existed.

After adding the Ethernet port to specified VLANs, the local port can forward packets of

these VLANs. The hybrid and trunk ports can be added to multiple VLANs, thereby

implementing the VLAN intercommunication between peers. For the hybrid port, you

can configure to tag some VLAN packets, based on which the packets can be

processed differently.

2.2.13 Setting the Default VLAN ID for the Ethernet Port

Since the access port can only be included in one VLAN only, its default VLAN is the

one to which it belongs. The hybrid port and the trunk port can be included in several

VLANs, it is necessary to configure the default VLAN ID. If the default VLAN ID has

been configured, the packets without VLAN Tag will be forwarded to the port that

belongs to the default VLAN. When sending the packets with VLAN Tag, if the VLAN ID

of the packet is identical to the default VLAN ID of the port, the system will remove

VLAN Tag before sending this packet.

Perform the following configuration in Ethernet port view.

Table 2-13 Setting the default VLAN ID for the Ethernet port

Operation Command

Set the default VLAN ID for the hybrid port

port hybrid pvid vlan vlan-id

Set the default VLAN ID for the trunk port

port trunk pvid vlan vlan-id

Restore the default VLAN ID of the hybrid

port to the default value

undo port hybrid pvid

Restore the default VLAN ID of the trunk

port to the default value

undo port trunk pvid

Note that: to guarantee the proper packet transmission, the default VLAN ID of local

hybrid port or Trunk port should be identical with that of the hybrid port or Trunk port on

the peer switch.

By default, the VLAN of hybrid port and trunk port is VLAN 1 and that of the access port

is the VLAN to which it belongs

2.2.14 Setting the VLAN VPN Feature on a Port

A VLAN Tag consists of only 12 bits (defined by IEEE802.1Q), so Ethernet Switches

can support up to 4k VLANs. In networking, especially in MAN (metropolitan area

network), a large numbers of VLANs are required to segment users. In this case, 4k

VLANs are not enough.

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The port VLAN VPN feature of the switch can provide duplex VLAN Tags to a packet,

namely, mark the packet with another VLAN Tag besides the original one, thus to

provide 4k x 4k VLANs to meet user’s demands for VLANs. At the same time, the port

VLAN VPN feature provides the following functions: using the original VLAN Tag to

differentiate users and services, and using the new VLAN Tag to load service and VPN

users. These make VLAN configuration simple and practicable. Through VLAN VPN

configuration, Ethernet Switches can meet the requirement in MAN.

If VLAN VPN is enabled on a port, every packet received on the port (no matter whether

the packet carries a VLAN Tag or not) will be given a new Tag that specifies the default

VLAN of this port. Thus, if the port receives a packet that already carries a VLAN Tag,

the packet will get two Tags; if the part receives an untagged packet, the packet will be

given a default VLAN Tag of the port.

Perform the following configuration in Ethernet port view.

Table 2-14 Setting the port VLAN VPN feature

Operation Command

Enable the port VLAN VPN feature

vlan-vpn enable

Disable the port VLAN VPN feature

undo vlan-vpn

Note that if any of GVRP, STP, and 802.1x has been enabled on a port, the VLAN VPN

feature cannot be enabled on the port.

By default, the port VLAN VPN feature is disabled.

2.2.15 Copying Port Configurations to Other Ports

To keep the configurations of other ports consistent with a specified port, you can use

copy configuration command to copy the configurations of that specified port to other

ports. Such configurations may involve: STP setting, QoS setting, LACP setting, and

port setting. The detailed table is as follows:

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Table 2-15 Configurations that can be copied

Attribute Detailed Setting

Enable/disable STP

Port priority

Path cost

Link attributes(point-to-point or not)

Port mCheck

Max transmission speed

Enable/disable root protection

Enable/disable loop protection

Edge or non-edge port

STP setting

Reset ARP or not

Define/apply flow template

Traffic reshaping

Traffic redirection

Packet filtering

Priority re-assignment

Traffic statistics

Traffic mirroring

QoS setting

Rate limiting

Permitted VLAN ID

Default VLAN ID

Add ports to VLAN

Default 802.1p priority

Port speed, duplex mode

Port setting

Port link type

LACP Enable/disable LACP on the port

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 Note:

z Using copy configuration command will clear protocol VLAN attributes of the

destination port, but it can not copy protocol VLAN attributes of source port to the

destination port.

z Using the copy configuration command, you can only copy the configurations of

Ethernet ports, Gigabit Ethernet ports and aggregation groups.

Perform the following configuration in system VLAN

Table 2-16 Copying port configurations to other ports

Operation Command

Copy port

configurations

to other ports

copy configuration source { interface-type interface-number |

aggregation-group agg-id } destination { interface-list

[ aggregation-group agg-id ] | aggregation-group agg-id }

Note that if the copy source is an aggregation group, the Active port with the smallest

number will be taken as the source; if the copy destination is an aggregation group, the

configurations of all ports in the group will be updated to the configurations of the

source. You cannot specify a dynamic aggregation group as the destination port of the

copy command.

2.2.16 Setting Port Hold Time

If the Down/Up operation is implemented on ports too frequently, the switch may fail.

Therefore, you can configure port hold time to prohibit frequent change of the port

status.

Perform the following configuration in system view.

Table 2-17 Setting the port hold time

Operation Command

Set the port hold time link-status hold hold-time

Restore the default value

undo link-status hold

By default, the port hold time is set to 3 seconds.

2.2.17 Setting the Ethernet Port in Loopback Mode

Perform the following configuration in Ethernet port view.

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Table 2-18 Setting the Ethernet port in loopback mode

Operation Command

Set the Ethernet port in loopback mode loopback { external | internal }

Remove loopback configuration on the port

undo loopback

By default, the Ethernet port is set in loopback mode. At present, the Ethernet ports of

the S9500 series switches do not support the external loopback mode.

2.3 Displaying and Debugging Ethernet Port

After the above configuration, execute display command in any view to display the

running of the Ethernet port configuration, and to verify the effect of the configuration.

Execute reset command in user view to clear the statistics information of the port.

Table 2-19 Displaying and debugging Ethernet port

Operation Command

Display all the information of the port

display interface interface-type |

interface-type interface-number [ packets ]

Display hybrid port or trunk port display port { hybrid | trunk }

Display the statistics information of

the port

display counters [ rate ] { inbound |

outbound } interface [ interface-type ]

Clear the statistics information of the

port

reset counters interface [ interface_type |

interface-type interface-number |

View Jumbo frame configuration on

all cards

display jumboframe configuration

 Note:

z The S9500 series do not support the Loopback External mode.

z When 802.1x is enabled on a port, the statistics information of the port cannot be

cleared.

z By default, the display counters command displays the traffic statistic information

of all ports in service.

z The supported Jumbo frame length ranges, as well as the default values, may vary

from card to card.

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2.4 Ethernet Port Configuration Example

I. Network requirements

Switch A is connected to Switch B through Trunk port GigabitEthernet2/1/1. Configure

the Trunk port with default VLAN ID, so that: when receiving the packets without VLAN

Tag, the port can forward them to the member ports belonging to the default VLAN;

when it sending the packets with VLAN Tag and the packet VLAN ID is the default

VLAN ID, the Trunk port remove the packet VLAN Tag and forward the packet.

II. Network diagram

Switch A

Switch B

Figure 2-1 Network diagram for Ethernet port configuration

III. Configuration procedure

The following configurations are used for Switch A. Please configure Switch B in the

similar way.

# Enter the Ethernet port view of GigabitEthernet2/1/1.

[H3C] interface gigabitethernet2/1/1

# Set the GigabitEthernet2/1/1 as a trunk port and allows VLANs 2, 6 through 50, and

100 to pass.

[H3C-GigabitEthernet2/1/1] port link-type trunk

[H3C-GigabitEthernet2/1/1] port trunk permit vlan 2 6 to 50 100

# Create the VLAN 100.

[H3C] vlan 100

# Configure the default VLAN ID of GigabitEthernet2/1/1 as 100.

[H3C-GigabitEthernet2/1/1] port trunk pvid vlan 100

2.5 Ethernet Port Troubleshooting

Symptom 1: Default VLAN ID configuration fails.

Solution: Take the following steps:

z Execute the display interface or display port command to check if the port is a

trunk port or a hybrid port. If it is neither of them, configure it as a trunk or hybrid

port.

z Then configure the default VLAN ID.

Symptom 2: The port is in down status.

Operation Manual – Port

H3C S9500 Series Routing Switches Chapter 2 Ethernet Port Configuration

2-14

Solution: Please check

z If the cable connection is correct and if the optical fiver cable is inversely

connected.

z If the shutdown command is used on the port.

z If the right optical module is inserted.

Operation Manual – Port

H3C S9500 Series Routing Switches Chapter 3 Link Aggregation Configuration

3-1

Chapter 3 Link Aggregation Configuration

3.1 Overview

3.1.1 Introduction to Link Aggregation

Link aggregation means aggregating several ports together to implement the

outgoing/incoming payload balance among the member ports and enhance the

connection reliability. Link aggregation may be manual aggregation, dynamic LACP

aggregation or static LACP aggregation. For the member ports in an aggregation group,

their basic configurations must be the same. That is, if one is a trunk port, others must

also be; when it turns into access port, then others must change to access port.

Basic configuration includes STP setting, QoS setting, VLAN setting, and port setting.

The STP setting includes STP enabling/disabling, link attribute (point-to-point or not),

STP priority, path cost, max transmission speed, loop protection, root protection, edge

port or not. The QoS setting includes traffic limiting, priority marking, default 802.1p

priority, bandwidth assurance, congestion avoidance, traffic redirection, and traffic

statistics. The VLAN setting includes permitted VLAN types, default VLAN ID. The port

setting includes port link type.

One S9500 series routing switch can support up to 920 aggregation groups. IDs 1

though 31 indicate manual or static aggregation groups. IDs 32 through 64 are

reserved. IDs 65 though 192 are routed trunks; IDs 193 through 920 indicate dynamic

aggregation groups. The systems with MPLS VPN cards only support seven load

balancing aggregation groups; those without MPLS VPN cards support 31 load

balancing aggregation groups. The systems with FE boards using EX chips only

supports seven load balancing aggregation groups.

 Note:

At present, S9500 series also support trans-board aggregation. The trans-board

aggregation is the same as the intra-board aggregation.

3.1.2 Introduction to LACP

Link aggregation control protocol (LACP) based on the IEEE802.3ad standard can be

used in dynamic link aggregation. An LACP-enabled port sends link aggregation

control protocol data units (LACPDUs) to tell the peer about its system priority, system

MAC address, port priority, port number and operation key. After receiving the

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H3C S9500 Series Operating instructions

H3C S9500 Series Operating instructions

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