mstp
MX Series, QFX Series, EX Series (Enhanced Layer 2 Software (ELS) Configuration Style)
mstp {
backup-bridge-priority priority;
bpdu-block-on-edge;
bpdu-destination-mac-address provider-bridge-group;
bridge-priority priority;
configuration-name configuration-name;
disable;
forward-delay seconds;
hello-time seconds;
interface ( all | interface-name ) {
bpdu-timeout-action {
alarm;
block;
}
cost cost;
edge;
mode (p2p | shared);
no-root-port;
priority interface-priority;
}
max-age seconds;
max-hops hops;
msti msti-id {
backup-bridge-priority priority;
bridge-priority priority;
interface interface-name {
cost cost;
priority interface-priority;
}
vlan vlan-id;
}
priority-hold-time seconds;
revision-level revision-level;
system-id system-id-value {
ip-address(es);
}
traceoptions {
file filename <files number> <size size> <world-readable | no-world-readable>;
flag flag <flag-modifier> <disable>;
}
vpls-flush-on-topology-change;
}
EX Series (Without Enhanced Layer 2 Software (ELS) Configuration Style)
mstp {
bpdu-block-on-edge;
bridge-priority priority;
configuration-name name;
disable;
forward-delay seconds;
hello-time seconds;
interface ( all | interface-name ){
bpdu-timeout-action {
block;
log;
}
cost cost;
disable;
edge;
mode mode;
no-root-port;
priority priority;
}
max-age seconds;
max-hops hops;
msti msti-id {
bridge-priority priority;
interface interface-name {
cost cost;
disable;
priority priority;
}
vlan (vlan-id | vlan-name);
}
revision-level revision-level;
traceoptions {
file filename <files number > <size size> <no-stamp | world-readable | no-world-readable>;
flag flag;
}
}
Hierarchy Level
[edit logical-systems logical-system-name protocols], [edit logical-systems logical-system-name routing-instances routing-instance-name protocols], [edit protocols], [edit routing-instances routing-instance-name protocols]
Description
Configures Multiple Spanning Tree Protocol (MSTP). MSTP is defined in the IEEE 802.1Q-2003 specification and is used to create a loop-free topology in networks with multiple spanning tree regions.
MX Series routers and QFX5100 switches do not support
the interface all statement to enable MSTP on all interfaces
with one command.
On MX Series routers, you must enable MSTP on interfaces individually
using the set ... protocols mstp interface interface-name statement.
On QFX5100 switches, to apply MSTP configuration to more than
one interface, you must first configure one or more interface ranges
for the interfaces on which you want to configure MSTP, and then issue
the set protocols mstp interface interface-name command using each interface range as the interface-name parameter.
The remaining statements are explained separately. See CLI Explorer.
Required Privilege Level
routing—To view this statement in the configuration.
routing-control—To add this statement to the configuration.
Release Information
Statement introduced in Junos OS Release 8.4.
bpdu-block-on-edge statement added in Junos OS Release 9.4.
bpdu-timeout-action statement added in Junos OS Release 9.4.
Support for logical systems added in Junos OS Release 9.6.