Rstp - Juniper JUNOS OS 10.4 - FOR EX REV 1 Manual

Complete Software Guide for Junos

rstp

Syntax
Hierarchy Level
Release Information
Description
Default
1856
®
OS for EX Series Ethernet Switches, Release 10.4
rstp {
disable;
bpdu-block-on-edge;
bridge-priority priority;
forward-delay seconds;
hello-time seconds;
interface (all | interface-name) {
disable;
bpdu-timeout-action{
block;
log;
}
cost cost;
edge;
mode mode;
no-root-port;
priority priority;
}
max-age seconds;
traceoptions {
file filename <files number > <size size> <no-stamp | no-world-readable |
world-readable>;
flag flag;
}
}
[edit protocols]
Statement introduced in Junos OS Release 9.0 for EX Series switches.
Configure Rapid Spanning Tree Protocol (RSTP). RSTP is defined in the IEEE 802.1D-2004
specification and is used to prevent loops in Layer 2 networks, which results in shorter
convergence times than those provided by basic Spanning Tree Protocol (STP).
VSTP and RSTP can be configured concurrently. You can selectively configure up to 253
VLANs using VSTP; the remaining VLANs will be configured using RSTP. VSTP and RSTP
are the only spanning-tree protocols that can be configured concurrently on the switch.
See "Configuring VLAN Spanning Tree Protocol (CLI Procedure)" on page 1818 for more
information on configuring VSTP and RSTP concurrently.
BEST PRACTICE: Configure RSTP when you configure VSTP. RSTP overhead
is minimal and this configuration ensures that a spanning-tree protocol is
running on all VLANs on your switch, even when your switch is supporting
more than 253 VLANs.
The remaining statements are explained separately.
RSTP is enabled on all Ethernet switching interfaces.
Copyright © 2010, Juniper Networks, Inc.