Brocade Multi-Service IronWare Switching Configuration Gui Manual de usuario descargar pdf (Pagina 655)

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Multi-Service IronWare Switching Configuration Guide 625

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About Multi-Chassis Trunk (MCT)

Port loop detection

Port loop detection is used to detect L2 loops in MCT ( due to misconfiguration). When using MCT, it

requires the ICL ports to be strictly tagged. The port loop detection feature supports strictly tagged

ports.

Loop detection for specific VLAN on a port

Strict mode loop detection can be configured on a specific VLAN for a given port. To configure loop

detection on VLAN 10 for interface 1/1, enter a command such as the following.

Brocade(config-if-e1000-1/1)#loop-detection vlan 10

Syntax: [no] loop-detection [vlan <vlan_id>]

Where vlan-id enablesLoose Mode configuration for a VLAN group.

A port can be tagged or untagged member of this VLAN.

Multiple VLANs can have loop detection configured for a given port. Loop detection BPDUs will be

sent out of each configured VLAN on that port.

Loop detection shutdown-disable

Use the loop-detection shutdown-disable command to disable the port shutdown feature in case of

loop detection. This feature will ensure that the ICL stays up when a loop detection PDU is received

on the ICL. This command will be applied to both strict mode or loose mode loop detection. To

configure loop-detection shutdown-disable to shutdown port 1/1 used for the ICL link, enter a

command such as the following.

Brocade(config-if-e1000-1/1)#loop-detection shutdown-disable

Syntax: loop-detection shutdown-disable

Loop-detection shutdown-sending-port

By default, the receive-port is shutdown by loop detection. The loop-detection

shutdown-sending-port command will shutdown the port that sent the loop detection PDUs instead

of shutting down the receiving port. This will ensure that the ICL stays up when a loop detection

PDU is received on the ICL.

This feature is only applicable to strict mode loop detection.

Brocade(config-if-e1000-1/1)#loop-detection shutdown-sending-port

SuperSpan 03-80-c2-xx-xx-00 Flood to the VLAN Same as non-MCT switch

VSRP Control 03-04-80-00-01-00 Flood to the VLAN Same as non-MCT switch

VSRP Source 03-04-80-00-01-01 Flood to the VLAN Same as non-MCT switch

Loop detection MAC Base MAC address |

0x03000000

Flood to the VLAN Same as non-MCT switch

TABLE 81 L2 protocol forwarding action –MCT switch and non - MCT switch

Protocol Destination MAC Non- MCT switch

forwarding action

MCT switch forwarding action

1 2 ... 650 651 652 653 654 655 656 657 658 659 660 ... 983 984

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