
950
|
Multiple Spanning Tree Protocol (MSTP)
www.dell.com | support.dell.com
Command
History
spanning-tree mstp
c e s
Configures a Layer 2 MSTP interface as an edge port with (optionally) a Bridge Protocol Data Unit
(BPDU) guard, or enables the root guard or loop guard feature on the interface.
Syntax
spanning-tree
mstp
{
edge-port
[
bpduguard
[
shutdown-on-violation
]]
| loopguard |
rootguard
}
Parameters
Command Modes
INTERFACE
Command
History
Usage
Information
On an MSTP switch, a port configured as an edge port will immediately transition to the forwarding
state. Only ports connected to end-hosts should be configured as an edge port. Consider an edge port
similar to a port with spanning-tree portfast enabled.
If
shutdown-on-violatio
n
is not enabled, BPDUs will still be sent to the RPM CPU.
Root guard and loop guard cannot be enabled at the same time on a port. For example, if you configure
loop guard on a port on which root guard is already configured, the following error message is
displayed:
% Error: RootGuard is configured. Cannot configure LoopGuard.
When used in an MSTP network, if root guard blocks a boundary port in the CIST, the port is also
blocked in all other MST instances.
Version 7.6.1.0
Added support for S-Series
Version 7.5.1.0
Added support for C-Series
Version 6.5.1.0
Introduced on E-Series
edge-port
Enter the keyword
edge-port
to configure the interface as a Multiple Spanning Tree
edge port.
bpduguard
(OPTIONAL) Enter the keyword
portfast
to enable Portfast to move the interface into
forwarding mode immediately after the root fails.
Enter the keyword
bpduguard
to disable the port when it receives a BPDU.
shutdown-on-
violation
(OPTIONAL) Enter the keyword
shutdown-on-violation
to hardware disable an
interface when a BPDU is received and the port is disabled.
loopguard
Enter the keyword
loopguard
to enable STP loop guard on an MSTP port or
port-channel interface.
rootguard
Enter the keyword
rootguard
to enable root guard on an MSTP port or port-channel
interface.
Version 8.5.1.0
Introduced the
loopguard
and
rootguard
options on the E-Series ExaScale.
Version 8.4.2.1
Introduced the
loopguard
and
rootguard
options on the E-Series TeraScale, C-Series,
and S-Series.
Version 8.2.1.0
Introduced hardware shutdown-on-violation option
Version 7.6.1.0
Added support for S-Series
Version 7.5.1.0
Added support for C-Series
Version 6.1.1.0
Support for BPDU guard added
Summary of Contents for Force10 TeraScale C Series
Page 1: ...FTOS Command Line Reference Guide FTOS 8 4 2 7 E Series TeraScale C Series S Series S50 S25 ...
Page 164: ...164 Control and Monitoring w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 176: ...176 802 1ag w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 188: ...188 802 3ah w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 204: ...204 802 1X w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 294: ...294 Access Control Lists ACL w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 428: ...428 Border Gateway Protocol IPv4 BGPv4 w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 456: ...456 Configuration Rollback w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 472: ...472 Dynamic Host Configuration Protocol DHCP w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 484: ...484 Far End Failure Detection FEFD w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 682: ...682 IPv4 Routing w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 732: ...732 IPv6 Basics w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 896: ...896 Layer 2 w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 914: ...914 Link Layer Detection Protocol LLDP w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 926: ...926 Multicast Listener Discovery MLD w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 952: ...952 Multiple Spanning Tree Protocol MSTP w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 976: ...976 Multicast w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 984: ...984 Neighbor Discovery Protocol NDP w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 1094: ...1094 Policy based Routing PBR w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 1130: ...1130 PIM Sparse Mode PIM SM w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 1164: ...1164 Private VLAN PVLAN w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 1276: ...1276 Rapid Spanning Tree Protocol RSTP w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 1342: ...1342 Service Provider Bridging w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 1354: ...1354 sFlow w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 1428: ...1428 Spanning Tree Protocol STP w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 1444: ...1444 Time and Network Time Protocol NTP w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 1464: ...1464 VLAN Stacking w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 1494: ...1494 Virtual Router Redundancy Protocol VRRP w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 1534: ...1534 C Series Diagnostics and Debugging w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 1574: ...1574 E Series Debugging and Diagnostics w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 1592: ...1592 S Series Debugging and Diagnostics w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 1622: ...1622 Index w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 1640: ...1640 Command Index w w w d e l l c o m s u p p o r t d e l l c o m ...