layer2-control
Syntax
layer2-control {
bpdu-block {
disable-timeout seconds;
interface interface-name;
}
ephemeral-db-support;
mac-rewrite {
interface interface-name {
enable-all-ifl;
protocol protocol-name;
}
tunnel-destination-mac <destination mac address>;
}
nonstop-bridging;
traceoptions {
file filename <files number> <size maximum-file-size> <world-readable | no-world-readable>;
flag flag <disable>;
}
}
Hierarchy Level
[edit protocols]
Description
Configure Layer 2 control protocols to enable features such as Layer 2 protocol tunneling or nonstop bridging.
You can configure destination MAC address using tunnel-destination-mac
<destination mac address>.
For a detailed description of configuring the nonstop-bridging
statement, see the Junos OS High Availability User Guide. When you configure this
statement on routing platforms with two Routing Engines, a primary Routing
Engine switches over gracefully to a backup Routing Engine and preserves Layer 2
Control Protocol (L2CP) information.
Options
| ephemeral-db-support | (Junos OS only) Enable users to configure Multiple Spanning Tree Protocol (MSTP), Rapid Spanning Tree Protocol (RSTP), or VLAN Spanning Tree Protocol (VSTP) in the ephemeral configuration database. |
The remaining statements are explained separately. Search for a statement in CLI Explorer or click a linked statement in the Syntax section for details.
Required Privilege Level
interface—To view this statement in the configuration.
interface-control—To add this statement to the configuration.
Release Information
Statement introduced in Junos OS Release 8.4.
bpdu-block statement added in Junos OS Release 9.4.
enable-all-if statement added in Junos OS Release 13.3.
Statement introduced in Junos OS Release 14.1X53-D10 for EX4300 switches.
tunnel-destination-mac statement added in Junos OS Evolved Release
21.3R1.
ephemeral-db-support statement added in Junos OS Release 23.4R1.