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Configuring Gigabit Ethernet Interfaces (J-Web Procedure)

An Ethernet interface must be configured for optimal performance in a high-traffic network.

To configure properties on a Gigabit Ethernet interface or 10–Gigabit Ethernet interface on an EX-series switch:

  1. Select the Interfaces option from the Configure menu.
  2. Select the option Ports. The page lists all the Gigabit Ethernet and 10–Gigabit Ethernet interfaces and their link status. When you select a particular interface, the interface details are displayed.

    The properties you can configure on the interface are displayed.

  3. Configure the interface by selecting options in the Edit menu. See Table 1 for details on the options.

    You can select multiple interfaces and modify their settings.

    Note: When you select multiple interfaces at the same time, you cannot modify the IP address and enable or disable the administrative status of the selected interfaces.

  4. Click Enable Port/Disable Port to enable or disable the administrative status on the selected port.

Table 1: Port Edit Options

Field

Function

Your Action
Port Role

Port Role

Specifies the role assigned to the port.

Note: Once a port role is configured on the interface, you cannot specify VLAN options and IP options.

Depending on the profile selected, the corresponding configuration is applied:

  • Default—Interface family is set to ethernet-switching, port mode is set to access, and RSTP protocol is enabled if redundant trunk groups are not configured.
  • Desktop—Interface family is set to ethernet-switching, port mode is set to access, RSTP is enabled with the edge and point-to-point options if the interfaces are not part of any redundant trunk groups, and port security parameters (MAC limit =1; dynamic ARP Inspection and DHCP snooping enabled) are set.
  • Desktop and Phone—Interface family is set to ethernet-switching, port mode is set to access, port security parameters (MAC limit =1; dynamic ARP Inspection, DHCP snooping enabled) are set, and recommended CoS parameters are specified for forwarding classes, schedulers, and classifiers. See Table 2 for more information.
  • Wireless Access Point—Interface family is set to ethernet-switching, port mode is set to access, RSTP is enabled with the edge and point-to-point options if the interfaces are not part of any redundant trunk groups.
  • Routed Uplink—Port family is set to inet, and recommended CoS parameters are set for schedulers and classifiers. See Table 2 for more information.
  • Layer 2 Uplink—Interface family is set to ethernet-switching, port mode is set to trunk, RSTP is enabled with the edge and point-to-point options if the interfaces are not part of any redundant trunk groups, and port security is set to dhcp-trusted.

The options available are:

  • Default—The default configuration is applied.
  • Desktop

    Select an existing VLAN configuration or a new VLAN configuration to be associated with the port.

  • Desktop and Phone

    Select an existing VLAN configuration or a new VLAN configuration to be associated with the port.

    You can also select an existing VoIP VLAN configuration or a new VoIP VLAN configuration to be associated with the port.

  • Wireless Access Point

    Select an existing VLAN configuration or a new VLAN configuration to be associated with the port. For a new VLAN, VLAN ID is a mandatory options.

  • Routed Uplink

    Specify the IP address and the subnet mask.

  • Layer 2 Uplink

    For this port role you can associate a native VLAN. To create a redundant trunk group, specify the group name and select the secondary interface.

  • None—No port role is configured for the selected interface.

Select the option and click OK.

Note: Refer to Port Role Configuration with the J-Web Interface—CLI Reference for the CLI command reference.
VLAN Options

Port Mode

Specifies the mode of operation for the port: trunk or access.

If you select Trunk, you can:

  1. Click Add to add a VLAN member.
  2. Select the VLAN and click OK.
  3. (Optional) Associate a native VLAN with the interface.

If you select Access, you can:

  1. Select the VLAN member to be associated with the interface.
  2. (Optional) Associate a VoIP VLAN with the interface. Only a VLAN with a VLAN ID can be associated as a VoIP VLAN.
  3. Click OK.
Link Options

MTU (bytes)

Specifies the maximum transmission unit size for the interface.

Type a value from 256 through 9216 bytes. The default MTU for Gigabit Ethernet interfaces is 1514.

Speed

Specifies the speed for the mode.

Select one of the following values: 10 Mbps, 100 Mbps, 1000 Mbps, or 10 Gbps.

Duplex

Specifies the link mode.

Select one: automatic, half-duplex, or full-duplex.

Description

Describes the link.

Note: If the port is part of an aggregate, only the option Description is enabled.

Enter a brief description for the link.

Enable Auto Negotiation

Enables or disables autonegotiation.

Select the checkbox to enable autonegotiation, or clear the checkbox to disable it. By default, autonegotiation is enabled.

Enable Flow Control

Enables or disables flow control.

Select the checkbox to enable flow control to regulate the amount of traffic sent out of the interface, or clear the checkbox to disable flow control and permit unrestricted traffic. Flow control is disabled by default.
IP Options

Enable IP Address

Specifies an IP address for the interface.

Note: If the IP address is cleared, the interface belongs to the inet family.
  1. Click the checkbox to enable IP settings
  2. Type an IP address, for example: 10.10.10.10
  3. Enter the subnet mask or address prefix. For example, 24 bits represents 255.255.255.0.
  4. Click OK.

Table 2: Recommended CoS Settings for Port Roles

CoS Parameter

Recommended Settings

Forwarding Classes

There are 4 forwarding classes:

  • voice—Queue number is set to 7.
  • expedited-forwarding—Queue number is set to 5.
  • assured-forwarding—Queue number is set to 1.
  • best-effort—Queue number is set to 0.

Schedulers

The schedulers and their settings are:

  • Strict-priority—Transmission rate is set to 10 percent, buffer size to 5 percent, and priority to strict-high
  • Expedited-scheduler—Transmission rate is set to 30 percent, buffer size to 30 percent , and priority is set to low.
  • Assured-scheduler—Transmission rate is set to 25 percent, buffer size to 25 percent, and priority is set to low.
  • Best-effort scheduler—Transmission-rate is set to 35 percent, buffer size to 40 percent, and priority is set to low.

Scheduler maps

When a desktop and phone, routed uplink, or layer 2 uplink roles are applied on interfaces, the forwarding classes and schedulers are mapped using the scheduler map.

ieee-802.1 classifier

Imports the default ieee-802.1 classifier configuration, and sets loss-priority to low for the code point 101 for the voice forwarding class.

dscp classifier

Imports the default dscp classifier configuration, and sets loss-priority to low for the code points 101110 for the voice forwarding class.