Understanding Interface Ranges On J-Ex Series Switches - Dell PowerConnect J-EX4200-24T Software Manual

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Understanding Interface Ranges on J-EX Series Switches

In a scenario where a dual-homed server is deployed with a switch, the network interface
cards form a LAG with the switch. During a server upgrade, the server may not be able
to exchange LACP PDUs. In such a situation you can configure an interface to be in the
UP state even if no PDUs are exchanged. Use the
interface when the peer has limited LACP capability. The interface selects the associated
LAG by default, whether the switch and peer are both in active or passive mode. When
there are no received PDUs, the partner is considered to be working in the passive mode.
Therefore, LACP PDU transmissions are controlled by the transmitting link.
If the remote end of the LAG link is a security device, LACP might not be supported
because security devices require a deterministic configuration. In this case, do not configure
LACP. All links in the LAG are permanently operational unless the switch detects a link
failure within the Ethernet physical layer or data link layers.
Understanding Virtual Chassis Configurations and Link Aggregation on page 702
Understanding Redundant Trunk Links on J-EX Series Switches on page 1049
Example: Configuring Aggregated Ethernet High-Speed Uplinks Between a Virtual
Chassis Access Switch and a Virtual Chassis Distribution Switch on page 740
Example: Configuring Aggregated Ethernet High-Speed Uplinks with LACP Between
a Virtual Chassis Access Switch and a Virtual Chassis Distribution Switch on page 746
Junos OS Network Interfaces Configuration Guide at
http://www.juniper.net/techpubs/software/junos/
You can use the interface ranges to group interfaces of the same type that share a
common configuration profile. This helps reduce the time and effort in configuring
interfaces on J-EX Series switches. The configurations common to all the interfaces can
be included in the interface range definition.
The interface range definition contains the name of the interface range defined, the
names of the individual member interfaces that do not fall in a series of interfaces, a
range of interfaces defined in the member range, and the configuration statements
common to all the interfaces. An interface range defined with member ranges and
individual members but without any common configurations, is also a valid definition.
NOTE: The interface range definition is supported only for Gigabit, 10-Gigabit,
and Fast Ethernet interfaces.
The common configurations defined in the interface range will be overridden by the local
configuration.
The defined interface ranges can be used at places where the
the following configuration hierarchies:
Chapter 50: Interfaces—Overview
statement to configure an
force-up
node is used in
interface
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