Enabling Local Interface Switching When The Mtu Does Not Match - Juniper ACX1000 Configuration Manual

ACX Series Universal Access Router Configuration Guide

Enabling Local Interface Switching When the MTU Does Not Match

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You can also configure virtual circuit interface protection for each local interface:
Protect interface for the starting interface—Include the
at the [edit protocols l2circuit local-switching interface interface-name]
Protect interface for the ending interface—Include the
the
[edit protocols l2circuit local-switching interface interface-name end-interface]
hierarchy level.
For more information about how to configure protect interfaces, see Configuring Interfaces
for Layer 2 Circuits.
Typically, when the primary interface goes down, the pseudowire starts using the protect
interface. By default, when the primary interface comes back online, the interface is
switched-over back from the protect interface to the primary interface. To prevent the
switchover back to the primary interface, unless the primary interface goes down, include
the statement. This prevents loss of traffic during the switchover.
no-revert
NOTE: If the protect interface fails, the interface is switched-over back to
the primary interface, irrespective of whether or not the
is included in the configuration.
You can configure the
no-revert
interface.
[edit protocols l2circuit local-switching interface interface-name]
no-revert;
end-interface {
interface interface-name;
no-revert;
}
NOTE: The protect interface must be configured prior to configuring the
no-revert statement.
You can configure a local switching interface to ignore the MTU configuration set for the
associated physical interface. This enables you to bring up a circuit between two logical
interfaces that are defined on physical interfaces with different MTU values.
To configure the local switching interface to ignore the MTU configured for the physical
interface, include the
ignore-mtu-mismatch
ignore-mtu-mismatch;
You can include this statement at the following hierarchy levels:
[edit protocols l2circuit local-switching interface interface-name]
protect-interface
protect-interface
statement both for the starting interface and the ending
statement:
Copyright © 2017, Juniper Networks, Inc.
statement
hierarchy level.
statement at
statement
no-revert