Bridge Cist - Alcatel-Lucent OmniSwitch 6850-48 Cli Reference Manual

Alcatel-lucent omniswitch 6850-48: reference guide

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bridge cist

Enables or disables the Spanning Tree status on a single port or an aggregate of ports for the flat mode

Common and Internal Spanning Tree (CIST) instance.

bridge cist {slot/port | logical_port} {enable | disable}

Syntax Definitions

logical_port

By default, the Spanning Tree status is enabled on eligible ports.

Platforms Supported

OmniSwitch 6400, 6850, 6850E, 6855, 9000E

Usage Guidelines

This command is an explicit Spanning Tree command that only applies to the port Spanning Tree status

for the flat mode CIST instance regardless of which operating mode (flat or 1x1) or protocol is active

on the switch.

If the switch is running in 1x1 mode when this command is used, the Spanning Tree status configured

for the port is not active for the CIST instance until the operating mode for the switch is changed to the

Note that when a configuration snapshot is taken of the switch, all Spanning Tree commands are saved

in their explicit format.

When the Spanning Tree status is disabled on a port, the port is set to a forwarding state for the speci-

fied instance.

If STP is disabled on a VLAN in the 1x1 mode, the port Spanning Tree status is ignored and all active

ports associated with the VLAN are put in a forwarding state and not included in the Spanning Tree

Algorithm. Note that ports at this point are not switching BPDU, unless the BPDU switching status for

the VLAN is enabled.

Physical ports that are reserved for link aggregation do not participate in the Spanning Tree Algorithm.

Instead, the algorithm is applied to the aggregate logical link (virtual port) that represents a collection

of physical ports.

The slot number for the module and the physical port number on that

module (for example, 3/1 specifies port 1 on slot 3).

The Link aggregate ID number (0–31).

Enables Spanning Tree on the specified port for the CIST instance.

Disables Spanning Tree on the specified port for the CIST instance.

Distributed Spanning Tree Commands

OmniSwitch CLI Reference Guide